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npa-nxx	State	Company	FRN	RMD	OCN	Rate Center	CLLI	Assign Date	Misc
217-206	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	SPRINGFLD	SPFDILSLRS0	00/00/0000	Prefix Type: RBOC Switch Name: SPRINGFIELD LAKE RS0 Switch Type: N/A LATA: Springfield IL (374) Tandem: SPFDILES52T 🔧 Explore Switch(CLLI: SPFDILSLRS0))
217-206 is split into 1,000-number blocks - detail below
217-206-1XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	SPRINGFLD	SPFDILSLRS0	N/A	Prefix Type: RBOC Switch Name: SPRINGFIELD LAKE RS0 Switch Type: N/A LATA: Springfield IL (374) Tandem: SPFDILES52T 🔧 Explore Switch(CLLI: SPFDILSLRS0))
217-206-2XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	SPRINGFLD	SPFDILSLRS0	N/A	Prefix Type: RBOC Switch Name: SPRINGFIELD LAKE RS0 Switch Type: N/A LATA: Springfield IL (374) Tandem: SPFDILES52T 🔧 Explore Switch(CLLI: SPFDILSLRS0))
217-206-3XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	SPRINGFLD	SPFDILSLRS0	N/A	Prefix Type: RBOC Switch Name: SPRINGFIELD LAKE RS0 Switch Type: N/A LATA: Springfield IL (374) Tandem: SPFDILES52T 🔧 Explore Switch(CLLI: SPFDILSLRS0))
217-206-4XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	SPRINGFLD	SPFDILSLRS0	N/A	Prefix Type: RBOC Switch Name: SPRINGFIELD LAKE RS0 Switch Type: N/A LATA: Springfield IL (374) Tandem: SPFDILES52T 🔧 Explore Switch(CLLI: SPFDILSLRS0))
217-206-6XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	SPRINGFLD	SPFDILSLRS0	N/A	Prefix Type: RBOC Switch Name: SPRINGFIELD LAKE RS0 Switch Type: N/A LATA: Springfield IL (374) Tandem: SPFDILES52T 🔧 Explore Switch(CLLI: SPFDILSLRS0))
217-206-7XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	SPRINGFLD	SPFDILSLRS0	N/A	Prefix Type: RBOC Switch Name: SPRINGFIELD LAKE RS0 Switch Type: N/A LATA: Springfield IL (374) Tandem: SPFDILES52T 🔧 Explore Switch(CLLI: SPFDILSLRS0))
217-206-8XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	SPRINGFLD	SPFDILSLRS0	N/A	Prefix Type: RBOC Switch Name: SPRINGFIELD LAKE RS0 Switch Type: N/A LATA: Springfield IL (374) Tandem: SPFDILES52T 🔧 Explore Switch(CLLI: SPFDILSLRS0))
217-206-9XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	SPRINGFLD	SPFDILSLRS0	N/A	Prefix Type: RBOC Switch Name: SPRINGFIELD LAKE RS0 Switch Type: N/A LATA: Springfield IL (374) Tandem: SPFDILES52T 🔧 Explore Switch(CLLI: SPFDILSLRS0))
217-213	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	DANVILLE	DAVLILDADS1	00/00/0000	Prefix Type: RBOC Switch Name: DANVILLE Switch Type: EWSD LATA: Champaign IL (370) Tandem: CHMPILCP51T 🔧 Explore Switch(CLLI: DAVLILDADS1))
217-213 is split into 1,000-number blocks - detail below
217-213-0XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	DANVILLE	DAVLILDADS1	N/A	Prefix Type: RBOC Switch Name: DANVILLE Switch Type: EWSD LATA: Champaign IL (370) Tandem: CHMPILCP51T 🔧 Explore Switch(CLLI: DAVLILDADS1))
217-221	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	QUINCY	QNCYILQYDS0	00/00/0000	Prefix Type: RBOC Switch Name: QUINCY Switch Type: EWSD LATA: Quincy IL (376) Tandem: JCVLILXC50T 🔧 Explore Switch(CLLI: QNCYILQYDS0))
217-222	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	QUINCY	QNCYILQYDS0	00/00/0000	Prefix Type: RBOC Switch Name: QUINCY Switch Type: EWSD LATA: Quincy IL (376) Tandem: JCVLILXC50T 🔧 Explore Switch(CLLI: QNCYILQYDS0))
217-223	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	QUINCY	QNCYILQYDS0	00/00/0000	Prefix Type: RBOC Switch Name: QUINCY Switch Type: EWSD LATA: Quincy IL (376) Tandem: JCVLILXC50T 🔧 Explore Switch(CLLI: QNCYILQYDS0))
217-224	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	QUINCY	QNCYILQYDS0	00/00/0000	Prefix Type: RBOC Switch Name: QUINCY Switch Type: EWSD LATA: Quincy IL (376) Tandem: JCVLILXC50T 🔧 Explore Switch(CLLI: QNCYILQYDS0))
217-228	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	QUINCY	QNCYILQYDS0	00/00/0000	Prefix Type: RBOC Switch Name: QUINCY Switch Type: EWSD LATA: Quincy IL (376) Tandem: JCVLILXC50T 🔧 Explore Switch(CLLI: QNCYILQYDS0))
217-231	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	QUINCY	QNCYILQYDS0	00/00/0000	Prefix Type: RBOC Switch Name: QUINCY Switch Type: EWSD LATA: Quincy IL (376) Tandem: JCVLILXC50T 🔧 Explore Switch(CLLI: QNCYILQYDS0))
217-231 is split into 1,000-number blocks - detail below
217-231-0XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	QUINCY	QNCYILQYDS0	N/A	Prefix Type: RBOC Switch Name: QUINCY Switch Type: EWSD LATA: Quincy IL (376) Tandem: JCVLILXC50T 🔧 Explore Switch(CLLI: QNCYILQYDS0))
217-231-2XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	QUINCY	QNCYILQYDS0	N/A	Prefix Type: RBOC Switch Name: QUINCY Switch Type: EWSD LATA: Quincy IL (376) Tandem: JCVLILXC50T 🔧 Explore Switch(CLLI: QNCYILQYDS0))
217-231-3XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	QUINCY	QNCYILQYDS0	N/A	Prefix Type: RBOC Switch Name: QUINCY Switch Type: EWSD LATA: Quincy IL (376) Tandem: JCVLILXC50T 🔧 Explore Switch(CLLI: QNCYILQYDS0))
217-231-4XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	QUINCY	QNCYILQYDS0	N/A	Prefix Type: RBOC Switch Name: QUINCY Switch Type: EWSD LATA: Quincy IL (376) Tandem: JCVLILXC50T 🔧 Explore Switch(CLLI: QNCYILQYDS0))
217-231-5XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	QUINCY	QNCYILQYDS0	N/A	Prefix Type: RBOC Switch Name: QUINCY Switch Type: EWSD LATA: Quincy IL (376) Tandem: JCVLILXC50T 🔧 Explore Switch(CLLI: QNCYILQYDS0))
217-231-8XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	QUINCY	QNCYILQYDS0	N/A	Prefix Type: RBOC Switch Name: QUINCY Switch Type: EWSD LATA: Quincy IL (376) Tandem: JCVLILXC50T 🔧 Explore Switch(CLLI: QNCYILQYDS0))
217-231-9XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	QUINCY	QNCYILQYDS0	N/A	Prefix Type: RBOC Switch Name: QUINCY Switch Type: EWSD LATA: Quincy IL (376) Tandem: JCVLILXC50T 🔧 Explore Switch(CLLI: QNCYILQYDS0))
217-244	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHAMPAURBN	CHMPILCUDS0	00/00/0000	Prefix Type: RBOC Switch Name: CHAMPAIGN UNIV Switch Type: DMS100 LATA: Champaign IL (370) Tandem: CHMPILCP51T 🔧 Explore Switch(CLLI: CHMPILCUDS0))
217-247	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	RIDGE FARM	RGFMILRFRS1	00/00/0000	Prefix Type: RBOC Switch Name: RIDGE FARM Switch Type: N/A LATA: Champaign IL (370) Tandem: CHMPILCP51T 🔧 Explore Switch(CLLI: RGFMILRFRS1))
217-247 is split into 1,000-number blocks - detail below
217-247-2XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	RIDGE FARM	RGFMILRFRS1	N/A	Prefix Type: RBOC Switch Name: RIDGE FARM Switch Type: N/A LATA: Champaign IL (370) Tandem: CHMPILCP51T 🔧 Explore Switch(CLLI: RGFMILRFRS1))
217-255	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHAMPAURBN	CHMPILCUDS0	00/00/0000	Prefix Type: RBOC Switch Name: CHAMPAIGN UNIV Switch Type: DMS100 LATA: Champaign IL (370) Tandem: CHMPILCP51T 🔧 Explore Switch(CLLI: CHMPILCUDS0))
217-255 is split into 1,000-number blocks - detail below
217-255-1XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHAMPAURBN	CHMPILCUDS0	N/A	Prefix Type: RBOC Switch Name: CHAMPAIGN UNIV Switch Type: DMS100 LATA: Champaign IL (370) Tandem: CHMPILCP51T 🔧 Explore Switch(CLLI: CHMPILCUDS0))
217-255-4XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHAMPAURBN	CHMPILCUDS0	N/A	Prefix Type: RBOC Switch Name: CHAMPAIGN UNIV Switch Type: DMS100 LATA: Champaign IL (370) Tandem: CHMPILCP51T 🔧 Explore Switch(CLLI: CHMPILCUDS0))
217-255-5XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHAMPAURBN	CHMPILCUDS0	N/A	Prefix Type: RBOC Switch Name: CHAMPAIGN UNIV Switch Type: DMS100 LATA: Champaign IL (370) Tandem: CHMPILCP51T 🔧 Explore Switch(CLLI: CHMPILCUDS0))
217-255-6XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHAMPAURBN	CHMPILCUDS0	N/A	Prefix Type: RBOC Switch Name: CHAMPAIGN UNIV Switch Type: DMS100 LATA: Champaign IL (370) Tandem: CHMPILCP51T 🔧 Explore Switch(CLLI: CHMPILCUDS0))
217-255-7XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHAMPAURBN	CHMPILCUDS0	N/A	Prefix Type: RBOC Switch Name: CHAMPAIGN UNIV Switch Type: DMS100 LATA: Champaign IL (370) Tandem: CHMPILCP51T 🔧 Explore Switch(CLLI: CHMPILCUDS0))
217-255-8XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHAMPAURBN	CHMPILCUDS0	N/A	Prefix Type: RBOC Switch Name: CHAMPAIGN UNIV Switch Type: DMS100 LATA: Champaign IL (370) Tandem: CHMPILCP51T 🔧 Explore Switch(CLLI: CHMPILCUDS0))
217-255-9XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHAMPAURBN	CHMPILCUDS0	N/A	Prefix Type: RBOC Switch Name: CHAMPAIGN UNIV Switch Type: DMS100 LATA: Champaign IL (370) Tandem: CHMPILCP51T 🔧 Explore Switch(CLLI: CHMPILCUDS0))
217-263	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	SPRINGFLD	SPFDILESDS1	00/00/0000	Prefix Type: RBOC Switch Name: SPRINGFIELD MAIN DS1 Switch Type: DMS100 LATA: Springfield IL (374) Tandem: SPFDILES52T 🔧 Explore Switch(CLLI: SPFDILESDS1))
217-265	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHAMPAURBN	CHMPILCUDS0	00/00/0000	Prefix Type: RBOC Switch Name: CHAMPAIGN UNIV Switch Type: DMS100 LATA: Champaign IL (370) Tandem: CHMPILCP51T 🔧 Explore Switch(CLLI: CHMPILCUDS0))
217-267	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	WESTVILLE	WSTVILWERS1	00/00/0000	Prefix Type: RBOC Switch Name: WESTVILLE Switch Type: N/A LATA: Champaign IL (370) Tandem: CHMPILCP51T 🔧 Explore Switch(CLLI: WSTVILWERS1))
217-267 is split into 1,000-number blocks - detail below
217-267-2XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	WESTVILLE	WSTVILWERS1	N/A	Prefix Type: RBOC Switch Name: WESTVILLE Switch Type: N/A LATA: Champaign IL (370) Tandem: CHMPILCP51T 🔧 Explore Switch(CLLI: WSTVILWERS1))
217-267-3XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	WESTVILLE	WSTVILWERS1	N/A	Prefix Type: RBOC Switch Name: WESTVILLE Switch Type: N/A LATA: Champaign IL (370) Tandem: CHMPILCP51T 🔧 Explore Switch(CLLI: WSTVILWERS1))
217-267-7XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	WESTVILLE	WSTVILWERS1	N/A	Prefix Type: RBOC Switch Name: WESTVILLE Switch Type: N/A LATA: Champaign IL (370) Tandem: CHMPILCP51T 🔧 Explore Switch(CLLI: WSTVILWERS1))
217-277	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	QUINCY	QNCYILQYDS0	00/00/0000	Prefix Type: RBOC Switch Name: QUINCY Switch Type: EWSD LATA: Quincy IL (376) Tandem: JCVLILXC50T 🔧 Explore Switch(CLLI: QNCYILQYDS0))
217-278	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHAMPAURBN	CHMPILCUDS0	00/00/0000	Prefix Type: RBOC Switch Name: CHAMPAIGN UNIV Switch Type: DMS100 LATA: Champaign IL (370) Tandem: CHMPILCP51T 🔧 Explore Switch(CLLI: CHMPILCUDS0))
217-278 is split into 1,000-number blocks - detail below
217-278-2XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHAMPAURBN	CHMPILCUDS0	N/A	Prefix Type: RBOC Switch Name: CHAMPAIGN UNIV Switch Type: DMS100 LATA: Champaign IL (370) Tandem: CHMPILCP51T 🔧 Explore Switch(CLLI: CHMPILCUDS0))
217-278-3XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHAMPAURBN	CHMPILCUDS0	N/A	Prefix Type: RBOC Switch Name: CHAMPAIGN UNIV Switch Type: DMS100 LATA: Champaign IL (370) Tandem: CHMPILCP51T 🔧 Explore Switch(CLLI: CHMPILCUDS0))
217-278-4XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHAMPAURBN	CHMPILCUDS0	N/A	Prefix Type: RBOC Switch Name: CHAMPAIGN UNIV Switch Type: DMS100 LATA: Champaign IL (370) Tandem: CHMPILCP51T 🔧 Explore Switch(CLLI: CHMPILCUDS0))
217-278-5XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHAMPAURBN	CHMPILCUDS0	N/A	Prefix Type: RBOC Switch Name: CHAMPAIGN UNIV Switch Type: DMS100 LATA: Champaign IL (370) Tandem: CHMPILCP51T 🔧 Explore Switch(CLLI: CHMPILCUDS0))
217-278-6XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHAMPAURBN	CHMPILCUDS0	N/A	Prefix Type: RBOC Switch Name: CHAMPAIGN UNIV Switch Type: DMS100 LATA: Champaign IL (370) Tandem: CHMPILCP51T 🔧 Explore Switch(CLLI: CHMPILCUDS0))
217-278-7XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHAMPAURBN	CHMPILCUDS0	N/A	Prefix Type: RBOC Switch Name: CHAMPAIGN UNIV Switch Type: DMS100 LATA: Champaign IL (370) Tandem: CHMPILCP51T 🔧 Explore Switch(CLLI: CHMPILCUDS0))
217-278-8XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHAMPAURBN	CHMPILCUDS0	N/A	Prefix Type: RBOC Switch Name: CHAMPAIGN UNIV Switch Type: DMS100 LATA: Champaign IL (370) Tandem: CHMPILCP51T 🔧 Explore Switch(CLLI: CHMPILCUDS0))
217-284	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	INDIANOLA	INDNILINRS1	00/00/0000	Prefix Type: RBOC Switch Name: INDIANOLA Switch Type: N/A LATA: Champaign IL (370) Tandem: CHMPILCP51T 🔧 Explore Switch(CLLI: INDNILINRS1))
217-284 is split into 1,000-number blocks - detail below
217-284-3XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	INDIANOLA	INDNILINRS1	N/A	Prefix Type: RBOC Switch Name: INDIANOLA Switch Type: N/A LATA: Champaign IL (370) Tandem: CHMPILCP51T 🔧 Explore Switch(CLLI: INDNILINRS1))
217-323	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	BEARDSTOWN	BDTWILBDRS0	00/00/0000	Prefix Type: RBOC Switch Name: BEARDSTOWN Switch Type: N/A LATA: Quincy IL (376) Tandem: JCVLILXC50T 🔧 Explore Switch(CLLI: BDTWILBDRS0))
217-323 is split into 1,000-number blocks - detail below
217-323-1XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	BEARDSTOWN	BDTWILBDRS0	N/A	Prefix Type: RBOC Switch Name: BEARDSTOWN Switch Type: N/A LATA: Quincy IL (376) Tandem: JCVLILXC50T 🔧 Explore Switch(CLLI: BDTWILBDRS0))
217-323-2XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	BEARDSTOWN	BDTWILBDRS0	N/A	Prefix Type: RBOC Switch Name: BEARDSTOWN Switch Type: N/A LATA: Quincy IL (376) Tandem: JCVLILXC50T 🔧 Explore Switch(CLLI: BDTWILBDRS0))
217-323-3XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	BEARDSTOWN	BDTWILBDRS0	N/A	Prefix Type: RBOC Switch Name: BEARDSTOWN Switch Type: N/A LATA: Quincy IL (376) Tandem: JCVLILXC50T 🔧 Explore Switch(CLLI: BDTWILBDRS0))
217-323-4XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	BEARDSTOWN	BDTWILBDRS0	N/A	Prefix Type: RBOC Switch Name: BEARDSTOWN Switch Type: N/A LATA: Quincy IL (376) Tandem: JCVLILXC50T 🔧 Explore Switch(CLLI: BDTWILBDRS0))
217-323-5XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	BEARDSTOWN	BDTWILBDRS0	N/A	Prefix Type: RBOC Switch Name: BEARDSTOWN Switch Type: N/A LATA: Quincy IL (376) Tandem: JCVLILXC50T 🔧 Explore Switch(CLLI: BDTWILBDRS0))
217-323-6XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	BEARDSTOWN	BDTWILBDRS0	N/A	Prefix Type: RBOC Switch Name: BEARDSTOWN Switch Type: N/A LATA: Quincy IL (376) Tandem: JCVLILXC50T 🔧 Explore Switch(CLLI: BDTWILBDRS0))
217-323-9XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	BEARDSTOWN	BDTWILBDRS0	N/A	Prefix Type: RBOC Switch Name: BEARDSTOWN Switch Type: N/A LATA: Quincy IL (376) Tandem: JCVLILXC50T 🔧 Explore Switch(CLLI: BDTWILBDRS0))
217-326	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHAMPAURBN	CHMPILCUDS0	00/00/0000	Prefix Type: RBOC Switch Name: CHAMPAIGN UNIV Switch Type: DMS100 LATA: Champaign IL (370) Tandem: CHMPILCP51T 🔧 Explore Switch(CLLI: CHMPILCUDS0))
217-328	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHAMPAURBN	CHMPILCUDS0	00/00/0000	Prefix Type: RBOC Switch Name: CHAMPAIGN UNIV Switch Type: DMS100 LATA: Champaign IL (370) Tandem: CHMPILCP51T 🔧 Explore Switch(CLLI: CHMPILCUDS0))
217-328 is split into 1,000-number blocks - detail below
217-328-0XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHAMPAURBN	CHMPILCUDS0	N/A	Prefix Type: RBOC Switch Name: CHAMPAIGN UNIV Switch Type: DMS100 LATA: Champaign IL (370) Tandem: CHMPILCP51T 🔧 Explore Switch(CLLI: CHMPILCUDS0))
217-328-1XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHAMPAURBN	CHMPILCUDS0	N/A	Prefix Type: RBOC Switch Name: CHAMPAIGN UNIV Switch Type: DMS100 LATA: Champaign IL (370) Tandem: CHMPILCP51T 🔧 Explore Switch(CLLI: CHMPILCUDS0))
217-328-2XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHAMPAURBN	CHMPILCUDS0	N/A	Prefix Type: RBOC Switch Name: CHAMPAIGN UNIV Switch Type: DMS100 LATA: Champaign IL (370) Tandem: CHMPILCP51T 🔧 Explore Switch(CLLI: CHMPILCUDS0))
217-328-3XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHAMPAURBN	CHMPILCUDS0	N/A	Prefix Type: RBOC Switch Name: CHAMPAIGN UNIV Switch Type: DMS100 LATA: Champaign IL (370) Tandem: CHMPILCP51T 🔧 Explore Switch(CLLI: CHMPILCUDS0))
217-328-4XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHAMPAURBN	CHMPILCUDS0	N/A	Prefix Type: RBOC Switch Name: CHAMPAIGN UNIV Switch Type: DMS100 LATA: Champaign IL (370) Tandem: CHMPILCP51T 🔧 Explore Switch(CLLI: CHMPILCUDS0))
217-328-5XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHAMPAURBN	CHMPILCUDS0	N/A	Prefix Type: RBOC Switch Name: CHAMPAIGN UNIV Switch Type: DMS100 LATA: Champaign IL (370) Tandem: CHMPILCP51T 🔧 Explore Switch(CLLI: CHMPILCUDS0))
217-328-8XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHAMPAURBN	CHMPILCUDS0	N/A	Prefix Type: RBOC Switch Name: CHAMPAIGN UNIV Switch Type: DMS100 LATA: Champaign IL (370) Tandem: CHMPILCP51T 🔧 Explore Switch(CLLI: CHMPILCUDS0))
217-328-9XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHAMPAURBN	CHMPILCUDS0	N/A	Prefix Type: RBOC Switch Name: CHAMPAIGN UNIV Switch Type: DMS100 LATA: Champaign IL (370) Tandem: CHMPILCP51T 🔧 Explore Switch(CLLI: CHMPILCUDS0))
217-332	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHAMPAURBN	CHMPILCUDS0	00/00/0000	Prefix Type: RBOC Switch Name: CHAMPAIGN UNIV Switch Type: DMS100 LATA: Champaign IL (370) Tandem: CHMPILCP51T 🔧 Explore Switch(CLLI: CHMPILCUDS0))
217-333	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHAMPAURBN	CHMPILCUDS0	00/00/0000	Prefix Type: RBOC Switch Name: CHAMPAIGN UNIV Switch Type: DMS100 LATA: Champaign IL (370) Tandem: CHMPILCP51T 🔧 Explore Switch(CLLI: CHMPILCUDS0))
217-334	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	COLUMBUS	CLMBILCORS0	00/00/0000	Prefix Type: RBOC Switch Name: COLUMBUS Switch Type: N/A LATA: Quincy IL (376) Tandem: JCVLILXC50T 🔧 Explore Switch(CLLI: CLMBILCORS0))
217-334 is split into 1,000-number blocks - detail below
217-334-5XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	COLUMBUS	CLMBILCORS0	N/A	Prefix Type: RBOC Switch Name: COLUMBUS Switch Type: N/A LATA: Quincy IL (376) Tandem: JCVLILXC50T 🔧 Explore Switch(CLLI: CLMBILCORS0))
217-337	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHAMPAURBN	CHMPILCUDS0	00/00/0000	Prefix Type: RBOC Switch Name: CHAMPAIGN UNIV Switch Type: DMS100 LATA: Champaign IL (370) Tandem: CHMPILCP51T 🔧 Explore Switch(CLLI: CHMPILCUDS0))
217-344	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHAMPAURBN	CHMPILCUDS0	00/00/0000	Prefix Type: RBOC Switch Name: CHAMPAIGN UNIV Switch Type: DMS100 LATA: Champaign IL (370) Tandem: CHMPILCP51T 🔧 Explore Switch(CLLI: CHMPILCUDS0))
217-351	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHAMPAURBN	CHMPILCPDS0	00/00/0000	Prefix Type: RBOC Switch Name: CHAMPAIGN MAIN DS0 Switch Type: DMS1/2 LATA: Champaign IL (370) Tandem: CHMPILCP51T 🔧 Explore Switch(CLLI: CHMPILCPDS0))
217-352	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHAMPAURBN	CHMPILCPDS0	00/00/0000	Prefix Type: RBOC Switch Name: CHAMPAIGN MAIN DS0 Switch Type: DMS1/2 LATA: Champaign IL (370) Tandem: CHMPILCP51T 🔧 Explore Switch(CLLI: CHMPILCPDS0))
217-353	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHAMPAURBN	CHMPILCPDS0	00/00/0000	Prefix Type: RBOC Switch Name: CHAMPAIGN MAIN DS0 Switch Type: DMS1/2 LATA: Champaign IL (370) Tandem: CHMPILCP51T 🔧 Explore Switch(CLLI: CHMPILCPDS0))
217-354	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	OAKWOOD	OKWDILOWRS0	00/00/0000	Prefix Type: RBOC Switch Name: OAKWOOD Switch Type: N/A LATA: Champaign IL (370) Tandem: CHMPILCP51T 🔧 Explore Switch(CLLI: OKWDILOWRS0))
217-354 is split into 1,000-number blocks - detail below
217-354-2XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	OAKWOOD	OKWDILOWRS0	N/A	Prefix Type: RBOC Switch Name: OAKWOOD Switch Type: N/A LATA: Champaign IL (370) Tandem: CHMPILCP51T 🔧 Explore Switch(CLLI: OKWDILOWRS0))
217-354-3XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	OAKWOOD	OKWDILOWRS0	N/A	Prefix Type: RBOC Switch Name: OAKWOOD Switch Type: N/A LATA: Champaign IL (370) Tandem: CHMPILCP51T 🔧 Explore Switch(CLLI: OKWDILOWRS0))
217-354-4XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	OAKWOOD	OKWDILOWRS0	N/A	Prefix Type: RBOC Switch Name: OAKWOOD Switch Type: N/A LATA: Champaign IL (370) Tandem: CHMPILCP51T 🔧 Explore Switch(CLLI: OKWDILOWRS0))
217-355	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHAMPAURBN	CHMPILCPDS0	00/00/0000	Prefix Type: RBOC Switch Name: CHAMPAIGN MAIN DS0 Switch Type: DMS1/2 LATA: Champaign IL (370) Tandem: CHMPILCP51T 🔧 Explore Switch(CLLI: CHMPILCPDS0))
217-356	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHAMPAURBN	CHMPILCPDS0	00/00/0000	Prefix Type: RBOC Switch Name: CHAMPAIGN MAIN DS0 Switch Type: DMS1/2 LATA: Champaign IL (370) Tandem: CHMPILCP51T 🔧 Explore Switch(CLLI: CHMPILCPDS0))
217-359	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHAMPAURBN	CHMPILCPDS0	00/00/0000	Prefix Type: RBOC Switch Name: CHAMPAIGN MAIN DS0 Switch Type: DMS1/2 LATA: Champaign IL (370) Tandem: CHMPILCP51T 🔧 Explore Switch(CLLI: CHMPILCPDS0))
217-362	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	DECATUR	DCTRILDCDS0	00/00/0000	Prefix Type: RBOC Switch Name: DECATUR MAIN DS0 Switch Type: DMS1/2 LATA: Springfield IL (374) Tandem: DCTRILDC51T 🔧 Explore Switch(CLLI: DCTRILDCDS0))
217-362 is split into 1,000-number blocks - detail below
217-362-0XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	DECATUR	DCTRILDCDS0	N/A	Prefix Type: RBOC Switch Name: DECATUR MAIN DS0 Switch Type: DMS1/2 LATA: Springfield IL (374) Tandem: DCTRILDC51T 🔧 Explore Switch(CLLI: DCTRILDCDS0))
217-362-1XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	DECATUR	DCTRILDCDS0	N/A	Prefix Type: RBOC Switch Name: DECATUR MAIN DS0 Switch Type: DMS1/2 LATA: Springfield IL (374) Tandem: DCTRILDC51T 🔧 Explore Switch(CLLI: DCTRILDCDS0))
217-362-2XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	DECATUR	DCTRILDCDS0	N/A	Prefix Type: RBOC Switch Name: DECATUR MAIN DS0 Switch Type: DMS1/2 LATA: Springfield IL (374) Tandem: DCTRILDC51T 🔧 Explore Switch(CLLI: DCTRILDCDS0))
217-362-3XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	DECATUR	DCTRILDCDS0	N/A	Prefix Type: RBOC Switch Name: DECATUR MAIN DS0 Switch Type: DMS1/2 LATA: Springfield IL (374) Tandem: DCTRILDC51T 🔧 Explore Switch(CLLI: DCTRILDCDS0))
217-362-5XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	DECATUR	DCTRILDCDS0	N/A	Prefix Type: RBOC Switch Name: DECATUR MAIN DS0 Switch Type: DMS1/2 LATA: Springfield IL (374) Tandem: DCTRILDC51T 🔧 Explore Switch(CLLI: DCTRILDCDS0))
217-362-6XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	DECATUR	DCTRILDCDS0	N/A	Prefix Type: RBOC Switch Name: DECATUR MAIN DS0 Switch Type: DMS1/2 LATA: Springfield IL (374) Tandem: DCTRILDC51T 🔧 Explore Switch(CLLI: DCTRILDCDS0))
217-362-7XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	DECATUR	DCTRILDCDS0	N/A	Prefix Type: RBOC Switch Name: DECATUR MAIN DS0 Switch Type: DMS1/2 LATA: Springfield IL (374) Tandem: DCTRILDC51T 🔧 Explore Switch(CLLI: DCTRILDCDS0))
217-362-8XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	DECATUR	DCTRILDCDS0	N/A	Prefix Type: RBOC Switch Name: DECATUR MAIN DS0 Switch Type: DMS1/2 LATA: Springfield IL (374) Tandem: DCTRILDC51T 🔧 Explore Switch(CLLI: DCTRILDCDS0))
217-362-9XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	DECATUR	DCTRILDCDS0	N/A	Prefix Type: RBOC Switch Name: DECATUR MAIN DS0 Switch Type: DMS1/2 LATA: Springfield IL (374) Tandem: DCTRILDC51T 🔧 Explore Switch(CLLI: DCTRILDCDS0))
217-363	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHAMPAURBN	CHMPILCPDS0	00/00/0000	Prefix Type: RBOC Switch Name: CHAMPAIGN MAIN DS0 Switch Type: DMS1/2 LATA: Champaign IL (370) Tandem: CHMPILCP51T 🔧 Explore Switch(CLLI: CHMPILCPDS0))
217-363 is split into 1,000-number blocks - detail below
217-363-0XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHAMPAURBN	CHMPILCPDS0	N/A	Prefix Type: RBOC Switch Name: CHAMPAIGN MAIN DS0 Switch Type: DMS1/2 LATA: Champaign IL (370) Tandem: CHMPILCP51T 🔧 Explore Switch(CLLI: CHMPILCPDS0))
217-363-1XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHAMPAURBN	CHMPILCPDS0	N/A	Prefix Type: RBOC Switch Name: CHAMPAIGN MAIN DS0 Switch Type: DMS1/2 LATA: Champaign IL (370) Tandem: CHMPILCP51T 🔧 Explore Switch(CLLI: CHMPILCPDS0))
217-363-2XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHAMPAURBN	CHMPILCPDS0	N/A	Prefix Type: RBOC Switch Name: CHAMPAIGN MAIN DS0 Switch Type: DMS1/2 LATA: Champaign IL (370) Tandem: CHMPILCP51T 🔧 Explore Switch(CLLI: CHMPILCPDS0))
217-363-3XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHAMPAURBN	CHMPILCPDS0	N/A	Prefix Type: RBOC Switch Name: CHAMPAIGN MAIN DS0 Switch Type: DMS1/2 LATA: Champaign IL (370) Tandem: CHMPILCP51T 🔧 Explore Switch(CLLI: CHMPILCPDS0))
217-363-4XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHAMPAURBN	CHMPILCPDS0	N/A	Prefix Type: RBOC Switch Name: CHAMPAIGN MAIN DS0 Switch Type: DMS1/2 LATA: Champaign IL (370) Tandem: CHMPILCP51T 🔧 Explore Switch(CLLI: CHMPILCPDS0))
217-363-5XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHAMPAURBN	CHMPILCPDS0	N/A	Prefix Type: RBOC Switch Name: CHAMPAIGN MAIN DS0 Switch Type: DMS1/2 LATA: Champaign IL (370) Tandem: CHMPILCP51T 🔧 Explore Switch(CLLI: CHMPILCPDS0))
217-363-6XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHAMPAURBN	CHMPILCPDS0	N/A	Prefix Type: RBOC Switch Name: CHAMPAIGN MAIN DS0 Switch Type: DMS1/2 LATA: Champaign IL (370) Tandem: CHMPILCP51T 🔧 Explore Switch(CLLI: CHMPILCPDS0))
217-363-8XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHAMPAURBN	CHMPILCPDS0	N/A	Prefix Type: RBOC Switch Name: CHAMPAIGN MAIN DS0 Switch Type: DMS1/2 LATA: Champaign IL (370) Tandem: CHMPILCP51T 🔧 Explore Switch(CLLI: CHMPILCPDS0))
217-363-9XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHAMPAURBN	CHMPILCPDS0	N/A	Prefix Type: RBOC Switch Name: CHAMPAIGN MAIN DS0 Switch Type: DMS1/2 LATA: Champaign IL (370) Tandem: CHMPILCP51T 🔧 Explore Switch(CLLI: CHMPILCPDS0))
217-364	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	BUFFALO	BFLOILBFRS0	00/00/0000	Prefix Type: RBOC Switch Name: BUFFALO Switch Type: N/A LATA: Springfield IL (374) Tandem: SPFDILES52T 🔧 Explore Switch(CLLI: BFLOILBFRS0))
217-364 is split into 1,000-number blocks - detail below
217-364-4XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	BUFFALO	BFLOILBFRS0	N/A	Prefix Type: RBOC Switch Name: BUFFALO Switch Type: N/A LATA: Springfield IL (374) Tandem: SPFDILES52T 🔧 Explore Switch(CLLI: BFLOILBFRS0))
217-364-5XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	BUFFALO	BFLOILBFRS0	N/A	Prefix Type: RBOC Switch Name: BUFFALO Switch Type: N/A LATA: Springfield IL (374) Tandem: SPFDILES52T 🔧 Explore Switch(CLLI: BFLOILBFRS0))
217-364-9XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	BUFFALO	BFLOILBFRS0	N/A	Prefix Type: RBOC Switch Name: BUFFALO Switch Type: N/A LATA: Springfield IL (374) Tandem: SPFDILES52T 🔧 Explore Switch(CLLI: BFLOILBFRS0))
217-365	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHAMPAURBN	CHMPILCUDS0	00/00/0000	Prefix Type: RBOC Switch Name: CHAMPAIGN UNIV Switch Type: DMS100 LATA: Champaign IL (370) Tandem: CHMPILCP51T 🔧 Explore Switch(CLLI: CHMPILCUDS0))
217-366	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHAMPAURBN	CHMPILCPDS0	00/00/0000	Prefix Type: RBOC Switch Name: CHAMPAIGN MAIN DS0 Switch Type: DMS1/2 LATA: Champaign IL (370) Tandem: CHMPILCP51T 🔧 Explore Switch(CLLI: CHMPILCPDS0))
217-367	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHAMPAURBN	CHMPILCUDS0	00/00/0000	Prefix Type: RBOC Switch Name: CHAMPAIGN UNIV Switch Type: DMS100 LATA: Champaign IL (370) Tandem: CHMPILCP51T 🔧 Explore Switch(CLLI: CHMPILCUDS0))
217-372	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHAMPAURBN	CHMPILCPDS0	00/00/0000	Prefix Type: RBOC Switch Name: CHAMPAIGN MAIN DS0 Switch Type: DMS1/2 LATA: Champaign IL (370) Tandem: CHMPILCP51T 🔧 Explore Switch(CLLI: CHMPILCPDS0))
217-372 is split into 1,000-number blocks - detail below
217-372-2XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHAMPAURBN	CHMPILCPDS0	N/A	Prefix Type: RBOC Switch Name: CHAMPAIGN MAIN DS0 Switch Type: DMS1/2 LATA: Champaign IL (370) Tandem: CHMPILCP51T 🔧 Explore Switch(CLLI: CHMPILCPDS0))
217-372-3XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHAMPAURBN	CHMPILCPDS0	N/A	Prefix Type: RBOC Switch Name: CHAMPAIGN MAIN DS0 Switch Type: DMS1/2 LATA: Champaign IL (370) Tandem: CHMPILCP51T 🔧 Explore Switch(CLLI: CHMPILCPDS0))
217-373	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHAMPAURBN	CHMPILCPDS0	00/00/0000	Prefix Type: RBOC Switch Name: CHAMPAIGN MAIN DS0 Switch Type: DMS1/2 LATA: Champaign IL (370) Tandem: CHMPILCP51T 🔧 Explore Switch(CLLI: CHMPILCPDS0))
217-378	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHAMPAURBN	CHMPILCPDS0	00/00/0000	Prefix Type: RBOC Switch Name: CHAMPAIGN MAIN DS0 Switch Type: DMS1/2 LATA: Champaign IL (370) Tandem: CHMPILCP51T 🔧 Explore Switch(CLLI: CHMPILCPDS0))
217-381	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	SPRINGFLD	SPFDILESDS1	00/00/0000	Prefix Type: RBOC Switch Name: SPRINGFIELD MAIN DS1 Switch Type: DMS100 LATA: Springfield IL (374) Tandem: SPFDILES52T 🔧 Explore Switch(CLLI: SPFDILESDS1))
217-381 is split into 1,000-number blocks - detail below
217-381-1XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	SPRINGFLD	SPFDILESDS1	N/A	Prefix Type: RBOC Switch Name: SPRINGFIELD MAIN DS1 Switch Type: DMS100 LATA: Springfield IL (374) Tandem: SPFDILES52T 🔧 Explore Switch(CLLI: SPFDILESDS1))
217-383	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHAMPAURBN	CHMPILCUDS0	00/00/0000	Prefix Type: RBOC Switch Name: CHAMPAIGN UNIV Switch Type: DMS100 LATA: Champaign IL (370) Tandem: CHMPILCP51T 🔧 Explore Switch(CLLI: CHMPILCUDS0))
217-383 is split into 1,000-number blocks - detail below
217-383-1XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHAMPAURBN	CHMPILCUDS0	N/A	Prefix Type: RBOC Switch Name: CHAMPAIGN UNIV Switch Type: DMS100 LATA: Champaign IL (370) Tandem: CHMPILCP51T 🔧 Explore Switch(CLLI: CHMPILCUDS0))
217-383-2XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHAMPAURBN	CHMPILCUDS0	N/A	Prefix Type: RBOC Switch Name: CHAMPAIGN UNIV Switch Type: DMS100 LATA: Champaign IL (370) Tandem: CHMPILCP51T 🔧 Explore Switch(CLLI: CHMPILCUDS0))
217-383-3XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHAMPAURBN	CHMPILCUDS0	N/A	Prefix Type: RBOC Switch Name: CHAMPAIGN UNIV Switch Type: DMS100 LATA: Champaign IL (370) Tandem: CHMPILCP51T 🔧 Explore Switch(CLLI: CHMPILCUDS0))
217-383-4XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHAMPAURBN	CHMPILCUDS0	N/A	Prefix Type: RBOC Switch Name: CHAMPAIGN UNIV Switch Type: DMS100 LATA: Champaign IL (370) Tandem: CHMPILCP51T 🔧 Explore Switch(CLLI: CHMPILCUDS0))
217-383-5XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHAMPAURBN	CHMPILCUDS0	N/A	Prefix Type: RBOC Switch Name: CHAMPAIGN UNIV Switch Type: DMS100 LATA: Champaign IL (370) Tandem: CHMPILCP51T 🔧 Explore Switch(CLLI: CHMPILCUDS0))
217-383-6XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHAMPAURBN	CHMPILCUDS0	N/A	Prefix Type: RBOC Switch Name: CHAMPAIGN UNIV Switch Type: DMS100 LATA: Champaign IL (370) Tandem: CHMPILCP51T 🔧 Explore Switch(CLLI: CHMPILCUDS0))
217-383-7XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHAMPAURBN	CHMPILCUDS0	N/A	Prefix Type: RBOC Switch Name: CHAMPAIGN UNIV Switch Type: DMS100 LATA: Champaign IL (370) Tandem: CHMPILCP51T 🔧 Explore Switch(CLLI: CHMPILCUDS0))
217-383-8XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHAMPAURBN	CHMPILCUDS0	N/A	Prefix Type: RBOC Switch Name: CHAMPAIGN UNIV Switch Type: DMS100 LATA: Champaign IL (370) Tandem: CHMPILCP51T 🔧 Explore Switch(CLLI: CHMPILCUDS0))
217-383-9XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHAMPAURBN	CHMPILCUDS0	N/A	Prefix Type: RBOC Switch Name: CHAMPAIGN UNIV Switch Type: DMS100 LATA: Champaign IL (370) Tandem: CHMPILCP51T 🔧 Explore Switch(CLLI: CHMPILCUDS0))
217-384	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHAMPAURBN	CHMPILCUDS0	00/00/0000	Prefix Type: RBOC Switch Name: CHAMPAIGN UNIV Switch Type: DMS100 LATA: Champaign IL (370) Tandem: CHMPILCP51T 🔧 Explore Switch(CLLI: CHMPILCUDS0))
217-398	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHAMPAURBN	CHMPILCPDS0	00/00/0000	Prefix Type: RBOC Switch Name: CHAMPAIGN MAIN DS0 Switch Type: DMS1/2 LATA: Champaign IL (370) Tandem: CHMPILCP51T 🔧 Explore Switch(CLLI: CHMPILCPDS0))
217-403	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHAMPAURBN	CHMPILCPDS0	00/00/0000	Prefix Type: RBOC Switch Name: CHAMPAIGN MAIN DS0 Switch Type: DMS1/2 LATA: Champaign IL (370) Tandem: CHMPILCP51T 🔧 Explore Switch(CLLI: CHMPILCPDS0))
217-403 is split into 1,000-number blocks - detail below
217-403-0XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHAMPAURBN	CHMPILCPDS0	N/A	Prefix Type: RBOC Switch Name: CHAMPAIGN MAIN DS0 Switch Type: DMS1/2 LATA: Champaign IL (370) Tandem: CHMPILCP51T 🔧 Explore Switch(CLLI: CHMPILCPDS0))
217-403-1XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHAMPAURBN	CHMPILCPDS0	N/A	Prefix Type: RBOC Switch Name: CHAMPAIGN MAIN DS0 Switch Type: DMS1/2 LATA: Champaign IL (370) Tandem: CHMPILCP51T 🔧 Explore Switch(CLLI: CHMPILCPDS0))
217-403-2XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHAMPAURBN	CHMPILCPDS0	N/A	Prefix Type: RBOC Switch Name: CHAMPAIGN MAIN DS0 Switch Type: DMS1/2 LATA: Champaign IL (370) Tandem: CHMPILCP51T 🔧 Explore Switch(CLLI: CHMPILCPDS0))
217-403-3XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHAMPAURBN	CHMPILCPDS0	N/A	Prefix Type: RBOC Switch Name: CHAMPAIGN MAIN DS0 Switch Type: DMS1/2 LATA: Champaign IL (370) Tandem: CHMPILCP51T 🔧 Explore Switch(CLLI: CHMPILCPDS0))
217-403-4XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHAMPAURBN	CHMPILCPDS0	N/A	Prefix Type: RBOC Switch Name: CHAMPAIGN MAIN DS0 Switch Type: DMS1/2 LATA: Champaign IL (370) Tandem: CHMPILCP51T 🔧 Explore Switch(CLLI: CHMPILCPDS0))
217-403-5XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHAMPAURBN	CHMPILCPDS0	N/A	Prefix Type: RBOC Switch Name: CHAMPAIGN MAIN DS0 Switch Type: DMS1/2 LATA: Champaign IL (370) Tandem: CHMPILCP51T 🔧 Explore Switch(CLLI: CHMPILCPDS0))
217-403-6XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHAMPAURBN	CHMPILCPDS0	N/A	Prefix Type: RBOC Switch Name: CHAMPAIGN MAIN DS0 Switch Type: DMS1/2 LATA: Champaign IL (370) Tandem: CHMPILCP51T 🔧 Explore Switch(CLLI: CHMPILCPDS0))
217-403-7XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHAMPAURBN	CHMPILCPDS0	N/A	Prefix Type: RBOC Switch Name: CHAMPAIGN MAIN DS0 Switch Type: DMS1/2 LATA: Champaign IL (370) Tandem: CHMPILCP51T 🔧 Explore Switch(CLLI: CHMPILCPDS0))
217-403-8XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHAMPAURBN	CHMPILCPDS0	N/A	Prefix Type: RBOC Switch Name: CHAMPAIGN MAIN DS0 Switch Type: DMS1/2 LATA: Champaign IL (370) Tandem: CHMPILCP51T 🔧 Explore Switch(CLLI: CHMPILCPDS0))
217-420	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	DECATUR	DCTRILDCDS0	00/00/0000	Prefix Type: RBOC Switch Name: DECATUR MAIN DS0 Switch Type: DMS1/2 LATA: Springfield IL (374) Tandem: DCTRILDC51T 🔧 Explore Switch(CLLI: DCTRILDCDS0))
217-420 is split into 1,000-number blocks - detail below
217-420-1XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	DECATUR	DCTRILDCDS0	N/A	Prefix Type: RBOC Switch Name: DECATUR MAIN DS0 Switch Type: DMS1/2 LATA: Springfield IL (374) Tandem: DCTRILDC51T 🔧 Explore Switch(CLLI: DCTRILDCDS0))
217-420-2XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	DECATUR	DCTRILDCDS0	N/A	Prefix Type: RBOC Switch Name: DECATUR MAIN DS0 Switch Type: DMS1/2 LATA: Springfield IL (374) Tandem: DCTRILDC51T 🔧 Explore Switch(CLLI: DCTRILDCDS0))
217-420-3XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	DECATUR	DCTRILDCDS0	N/A	Prefix Type: RBOC Switch Name: DECATUR MAIN DS0 Switch Type: DMS1/2 LATA: Springfield IL (374) Tandem: DCTRILDC51T 🔧 Explore Switch(CLLI: DCTRILDCDS0))
217-420-4XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	DECATUR	DCTRILDCDS0	N/A	Prefix Type: RBOC Switch Name: DECATUR MAIN DS0 Switch Type: DMS1/2 LATA: Springfield IL (374) Tandem: DCTRILDC51T 🔧 Explore Switch(CLLI: DCTRILDCDS0))
217-420-5XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	DECATUR	DCTRILDCDS0	N/A	Prefix Type: RBOC Switch Name: DECATUR MAIN DS0 Switch Type: DMS1/2 LATA: Springfield IL (374) Tandem: DCTRILDC51T 🔧 Explore Switch(CLLI: DCTRILDCDS0))
217-420-6XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	DECATUR	DCTRILDCDS0	N/A	Prefix Type: RBOC Switch Name: DECATUR MAIN DS0 Switch Type: DMS1/2 LATA: Springfield IL (374) Tandem: DCTRILDC51T 🔧 Explore Switch(CLLI: DCTRILDCDS0))
217-420-7XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	DECATUR	DCTRILDCDS0	N/A	Prefix Type: RBOC Switch Name: DECATUR MAIN DS0 Switch Type: DMS1/2 LATA: Springfield IL (374) Tandem: DCTRILDC51T 🔧 Explore Switch(CLLI: DCTRILDCDS0))
217-420-8XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	DECATUR	DCTRILDCDS0	N/A	Prefix Type: RBOC Switch Name: DECATUR MAIN DS0 Switch Type: DMS1/2 LATA: Springfield IL (374) Tandem: DCTRILDC51T 🔧 Explore Switch(CLLI: DCTRILDCDS0))
217-420-9XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	DECATUR	DCTRILDCDS0	N/A	Prefix Type: RBOC Switch Name: DECATUR MAIN DS0 Switch Type: DMS1/2 LATA: Springfield IL (374) Tandem: DCTRILDC51T 🔧 Explore Switch(CLLI: DCTRILDCDS0))
217-421	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	DECATUR	DCTRILDCDS0	00/00/0000	Prefix Type: RBOC Switch Name: DECATUR MAIN DS0 Switch Type: DMS1/2 LATA: Springfield IL (374) Tandem: DCTRILDC51T 🔧 Explore Switch(CLLI: DCTRILDCDS0))
217-422	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	DECATUR	DCTRILDCDS0	00/00/0000	Prefix Type: RBOC Switch Name: DECATUR MAIN DS0 Switch Type: DMS1/2 LATA: Springfield IL (374) Tandem: DCTRILDC51T 🔧 Explore Switch(CLLI: DCTRILDCDS0))
217-423	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	DECATUR	DCTRILDCDS0	00/00/0000	Prefix Type: RBOC Switch Name: DECATUR MAIN DS0 Switch Type: DMS1/2 LATA: Springfield IL (374) Tandem: DCTRILDC51T 🔧 Explore Switch(CLLI: DCTRILDCDS0))
217-424	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	DECATUR	DCTRILDCDS0	00/00/0000	Prefix Type: RBOC Switch Name: DECATUR MAIN DS0 Switch Type: DMS1/2 LATA: Springfield IL (374) Tandem: DCTRILDC51T 🔧 Explore Switch(CLLI: DCTRILDCDS0))
217-425	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	DECATUR	DCTRILDCDS0	00/00/0000	Prefix Type: RBOC Switch Name: DECATUR MAIN DS0 Switch Type: DMS1/2 LATA: Springfield IL (374) Tandem: DCTRILDC51T 🔧 Explore Switch(CLLI: DCTRILDCDS0))
217-427	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CATLIN	CTLNILCBRS0	00/00/0000	Prefix Type: RBOC Switch Name: CATLIN Switch Type: N/A LATA: Champaign IL (370) Tandem: CHMPILCP51T 🔧 Explore Switch(CLLI: CTLNILCBRS0))
217-427 is split into 1,000-number blocks - detail below
217-427-2XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CATLIN	CTLNILCBRS0	N/A	Prefix Type: RBOC Switch Name: CATLIN Switch Type: N/A LATA: Champaign IL (370) Tandem: CHMPILCP51T 🔧 Explore Switch(CLLI: CTLNILCBRS0))
217-427-5XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CATLIN	CTLNILCBRS0	N/A	Prefix Type: RBOC Switch Name: CATLIN Switch Type: N/A LATA: Champaign IL (370) Tandem: CHMPILCP51T 🔧 Explore Switch(CLLI: CTLNILCBRS0))
217-428	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	DECATUR	DCTRILDCDS0	00/00/0000	Prefix Type: RBOC Switch Name: DECATUR MAIN DS0 Switch Type: DMS1/2 LATA: Springfield IL (374) Tandem: DCTRILDC51T 🔧 Explore Switch(CLLI: DCTRILDCDS0))
217-429	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	DECATUR	DCTRILDCDS0	00/00/0000	Prefix Type: RBOC Switch Name: DECATUR MAIN DS0 Switch Type: DMS1/2 LATA: Springfield IL (374) Tandem: DCTRILDC51T 🔧 Explore Switch(CLLI: DCTRILDCDS0))
217-431	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	DANVILLE	DAVLILDADS1	00/00/0000	Prefix Type: RBOC Switch Name: DANVILLE Switch Type: EWSD LATA: Champaign IL (370) Tandem: CHMPILCP51T 🔧 Explore Switch(CLLI: DAVLILDADS1))
217-434	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	FOWLER	FWLRILFWRS0	00/00/0000	Prefix Type: RBOC Switch Name: FOWLER Switch Type: N/A LATA: Quincy IL (376) Tandem: JCVLILXC50T 🔧 Explore Switch(CLLI: FWLRILFWRS0))
217-434 is split into 1,000-number blocks - detail below
217-434-8XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	FOWLER	FWLRILFWRS0	N/A	Prefix Type: RBOC Switch Name: FOWLER Switch Type: N/A LATA: Quincy IL (376) Tandem: JCVLILXC50T 🔧 Explore Switch(CLLI: FWLRILFWRS0))
217-442	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	DANVILLE	DAVLILDADS1	00/00/0000	Prefix Type: RBOC Switch Name: DANVILLE Switch Type: EWSD LATA: Champaign IL (370) Tandem: CHMPILCP51T 🔧 Explore Switch(CLLI: DAVLILDADS1))
217-443	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	DANVILLE	DAVLILDADS1	00/00/0000	Prefix Type: RBOC Switch Name: DANVILLE Switch Type: EWSD LATA: Champaign IL (370) Tandem: CHMPILCP51T 🔧 Explore Switch(CLLI: DAVLILDADS1))
217-444	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	DANVILLE	DAVLILDADS1	00/00/0000	Prefix Type: RBOC Switch Name: DANVILLE Switch Type: EWSD LATA: Champaign IL (370) Tandem: CHMPILCP51T 🔧 Explore Switch(CLLI: DAVLILDADS1))
217-446	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	DANVILLE	DAVLILDADS1	00/00/0000	Prefix Type: RBOC Switch Name: DANVILLE Switch Type: EWSD LATA: Champaign IL (370) Tandem: CHMPILCP51T 🔧 Explore Switch(CLLI: DAVLILDADS1))
217-450	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	DECATUR	DCTRILDCDS0	00/00/0000	Prefix Type: RBOC Switch Name: DECATUR MAIN DS0 Switch Type: DMS1/2 LATA: Springfield IL (374) Tandem: DCTRILDC51T 🔧 Explore Switch(CLLI: DCTRILDCDS0))
217-450 is split into 1,000-number blocks - detail below
217-450-0XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	DECATUR	DCTRILDCDS0	N/A	Prefix Type: RBOC Switch Name: DECATUR MAIN DS0 Switch Type: DMS1/2 LATA: Springfield IL (374) Tandem: DCTRILDC51T 🔧 Explore Switch(CLLI: DCTRILDCDS0))
217-450-2XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	DECATUR	DCTRILDCDS0	N/A	Prefix Type: RBOC Switch Name: DECATUR MAIN DS0 Switch Type: DMS1/2 LATA: Springfield IL (374) Tandem: DCTRILDC51T 🔧 Explore Switch(CLLI: DCTRILDCDS0))
217-450-3XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	DECATUR	DCTRILDCDS0	N/A	Prefix Type: RBOC Switch Name: DECATUR MAIN DS0 Switch Type: DMS1/2 LATA: Springfield IL (374) Tandem: DCTRILDC51T 🔧 Explore Switch(CLLI: DCTRILDCDS0))
217-450-4XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	DECATUR	DCTRILDCDS0	N/A	Prefix Type: RBOC Switch Name: DECATUR MAIN DS0 Switch Type: DMS1/2 LATA: Springfield IL (374) Tandem: DCTRILDC51T 🔧 Explore Switch(CLLI: DCTRILDCDS0))
217-450-5XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	DECATUR	DCTRILDCDS0	N/A	Prefix Type: RBOC Switch Name: DECATUR MAIN DS0 Switch Type: DMS1/2 LATA: Springfield IL (374) Tandem: DCTRILDC51T 🔧 Explore Switch(CLLI: DCTRILDCDS0))
217-450-6XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	DECATUR	DCTRILDCDS0	N/A	Prefix Type: RBOC Switch Name: DECATUR MAIN DS0 Switch Type: DMS1/2 LATA: Springfield IL (374) Tandem: DCTRILDC51T 🔧 Explore Switch(CLLI: DCTRILDCDS0))
217-450-8XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	DECATUR	DCTRILDCDS0	N/A	Prefix Type: RBOC Switch Name: DECATUR MAIN DS0 Switch Type: DMS1/2 LATA: Springfield IL (374) Tandem: DCTRILDC51T 🔧 Explore Switch(CLLI: DCTRILDCDS0))
217-451	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	DECATUR	DCTRILDCDS0	00/00/0000	Prefix Type: RBOC Switch Name: DECATUR MAIN DS0 Switch Type: DMS1/2 LATA: Springfield IL (374) Tandem: DCTRILDC51T 🔧 Explore Switch(CLLI: DCTRILDCDS0))
217-451 is split into 1,000-number blocks - detail below
217-451-2XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	DECATUR	DCTRILDCDS0	N/A	Prefix Type: RBOC Switch Name: DECATUR MAIN DS0 Switch Type: DMS1/2 LATA: Springfield IL (374) Tandem: DCTRILDC51T 🔧 Explore Switch(CLLI: DCTRILDCDS0))
217-451-3XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	DECATUR	DCTRILDCDS0	N/A	Prefix Type: RBOC Switch Name: DECATUR MAIN DS0 Switch Type: DMS1/2 LATA: Springfield IL (374) Tandem: DCTRILDC51T 🔧 Explore Switch(CLLI: DCTRILDCDS0))
217-451-4XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	DECATUR	DCTRILDCDS0	N/A	Prefix Type: RBOC Switch Name: DECATUR MAIN DS0 Switch Type: DMS1/2 LATA: Springfield IL (374) Tandem: DCTRILDC51T 🔧 Explore Switch(CLLI: DCTRILDCDS0))
217-451-5XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	DECATUR	DCTRILDCDS0	N/A	Prefix Type: RBOC Switch Name: DECATUR MAIN DS0 Switch Type: DMS1/2 LATA: Springfield IL (374) Tandem: DCTRILDC51T 🔧 Explore Switch(CLLI: DCTRILDCDS0))
217-451-6XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	DECATUR	DCTRILDCDS0	N/A	Prefix Type: RBOC Switch Name: DECATUR MAIN DS0 Switch Type: DMS1/2 LATA: Springfield IL (374) Tandem: DCTRILDC51T 🔧 Explore Switch(CLLI: DCTRILDCDS0))
217-451-7XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	DECATUR	DCTRILDCDS0	N/A	Prefix Type: RBOC Switch Name: DECATUR MAIN DS0 Switch Type: DMS1/2 LATA: Springfield IL (374) Tandem: DCTRILDC51T 🔧 Explore Switch(CLLI: DCTRILDCDS0))
217-451-8XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	DECATUR	DCTRILDCDS0	N/A	Prefix Type: RBOC Switch Name: DECATUR MAIN DS0 Switch Type: DMS1/2 LATA: Springfield IL (374) Tandem: DCTRILDC51T 🔧 Explore Switch(CLLI: DCTRILDCDS0))
217-451-9XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	DECATUR	DCTRILDCDS0	N/A	Prefix Type: RBOC Switch Name: DECATUR MAIN DS0 Switch Type: DMS1/2 LATA: Springfield IL (374) Tandem: DCTRILDC51T 🔧 Explore Switch(CLLI: DCTRILDCDS0))
217-462	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	DECATUR	DCTRILDCDS0	00/00/0000	Prefix Type: RBOC Switch Name: DECATUR MAIN DS0 Switch Type: DMS1/2 LATA: Springfield IL (374) Tandem: DCTRILDC51T 🔧 Explore Switch(CLLI: DCTRILDCDS0))
217-462 is split into 1,000-number blocks - detail below
217-462-0XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	DECATUR	DCTRILDCDS0	N/A	Prefix Type: RBOC Switch Name: DECATUR MAIN DS0 Switch Type: DMS1/2 LATA: Springfield IL (374) Tandem: DCTRILDC51T 🔧 Explore Switch(CLLI: DCTRILDCDS0))
217-462-1XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	DECATUR	DCTRILDCDS0	N/A	Prefix Type: RBOC Switch Name: DECATUR MAIN DS0 Switch Type: DMS1/2 LATA: Springfield IL (374) Tandem: DCTRILDC51T 🔧 Explore Switch(CLLI: DCTRILDCDS0))
217-462-2XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	DECATUR	DCTRILDCDS0	N/A	Prefix Type: RBOC Switch Name: DECATUR MAIN DS0 Switch Type: DMS1/2 LATA: Springfield IL (374) Tandem: DCTRILDC51T 🔧 Explore Switch(CLLI: DCTRILDCDS0))
217-462-3XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	DECATUR	DCTRILDCDS0	N/A	Prefix Type: RBOC Switch Name: DECATUR MAIN DS0 Switch Type: DMS1/2 LATA: Springfield IL (374) Tandem: DCTRILDC51T 🔧 Explore Switch(CLLI: DCTRILDCDS0))
217-462-4XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	DECATUR	DCTRILDCDS0	N/A	Prefix Type: RBOC Switch Name: DECATUR MAIN DS0 Switch Type: DMS1/2 LATA: Springfield IL (374) Tandem: DCTRILDC51T 🔧 Explore Switch(CLLI: DCTRILDCDS0))
217-462-5XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	DECATUR	DCTRILDCDS0	N/A	Prefix Type: RBOC Switch Name: DECATUR MAIN DS0 Switch Type: DMS1/2 LATA: Springfield IL (374) Tandem: DCTRILDC51T 🔧 Explore Switch(CLLI: DCTRILDCDS0))
217-464	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	DECATUR	DCTRILDCDS0	00/00/0000	Prefix Type: RBOC Switch Name: DECATUR MAIN DS0 Switch Type: DMS1/2 LATA: Springfield IL (374) Tandem: DCTRILDC51T 🔧 Explore Switch(CLLI: DCTRILDCDS0))
217-464 is split into 1,000-number blocks - detail below
217-464-1XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	DECATUR	DCTRILDCDS0	N/A	Prefix Type: RBOC Switch Name: DECATUR MAIN DS0 Switch Type: DMS1/2 LATA: Springfield IL (374) Tandem: DCTRILDC51T 🔧 Explore Switch(CLLI: DCTRILDCDS0))
217-464-2XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	DECATUR	DCTRILDCDS0	N/A	Prefix Type: RBOC Switch Name: DECATUR MAIN DS0 Switch Type: DMS1/2 LATA: Springfield IL (374) Tandem: DCTRILDC51T 🔧 Explore Switch(CLLI: DCTRILDCDS0))
217-464-3XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	DECATUR	DCTRILDCDS0	N/A	Prefix Type: RBOC Switch Name: DECATUR MAIN DS0 Switch Type: DMS1/2 LATA: Springfield IL (374) Tandem: DCTRILDC51T 🔧 Explore Switch(CLLI: DCTRILDCDS0))
217-464-4XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	DECATUR	DCTRILDCDS0	N/A	Prefix Type: RBOC Switch Name: DECATUR MAIN DS0 Switch Type: DMS1/2 LATA: Springfield IL (374) Tandem: DCTRILDC51T 🔧 Explore Switch(CLLI: DCTRILDCDS0))
217-464-5XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	DECATUR	DCTRILDCDS0	N/A	Prefix Type: RBOC Switch Name: DECATUR MAIN DS0 Switch Type: DMS1/2 LATA: Springfield IL (374) Tandem: DCTRILDC51T 🔧 Explore Switch(CLLI: DCTRILDCDS0))
217-464-6XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	DECATUR	DCTRILDCDS0	N/A	Prefix Type: RBOC Switch Name: DECATUR MAIN DS0 Switch Type: DMS1/2 LATA: Springfield IL (374) Tandem: DCTRILDC51T 🔧 Explore Switch(CLLI: DCTRILDCDS0))
217-464-7XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	DECATUR	DCTRILDCDS0	N/A	Prefix Type: RBOC Switch Name: DECATUR MAIN DS0 Switch Type: DMS1/2 LATA: Springfield IL (374) Tandem: DCTRILDC51T 🔧 Explore Switch(CLLI: DCTRILDCDS0))
217-464-8XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	DECATUR	DCTRILDCDS0	N/A	Prefix Type: RBOC Switch Name: DECATUR MAIN DS0 Switch Type: DMS1/2 LATA: Springfield IL (374) Tandem: DCTRILDC51T 🔧 Explore Switch(CLLI: DCTRILDCDS0))
217-467	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	SPRINGFLD	SPFDILESDS2	00/00/0000	Prefix Type: RBOC Switch Name: SPRINGFIELD MAIN DS2 Switch Type: DMS100 LATA: Springfield IL (374) Tandem: SPFDILES52T 🔧 Explore Switch(CLLI: SPFDILESDS2))
217-469	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	ST JOSEPH	STJSILSHRS0	00/00/0000	Prefix Type: RBOC Switch Name: ST JOSEPH Switch Type: N/A LATA: Champaign IL (370) Tandem: CHMPILCP51T 🔧 Explore Switch(CLLI: STJSILSHRS0))
217-469 is split into 1,000-number blocks - detail below
217-469-0XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	ST JOSEPH	STJSILSHRS0	N/A	Prefix Type: RBOC Switch Name: ST JOSEPH Switch Type: N/A LATA: Champaign IL (370) Tandem: CHMPILCP51T 🔧 Explore Switch(CLLI: STJSILSHRS0))
217-469-2XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	ST JOSEPH	STJSILSHRS0	N/A	Prefix Type: RBOC Switch Name: ST JOSEPH Switch Type: N/A LATA: Champaign IL (370) Tandem: CHMPILCP51T 🔧 Explore Switch(CLLI: STJSILSHRS0))
217-469-7XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	ST JOSEPH	STJSILSHRS0	N/A	Prefix Type: RBOC Switch Name: ST JOSEPH Switch Type: N/A LATA: Champaign IL (370) Tandem: CHMPILCP51T 🔧 Explore Switch(CLLI: STJSILSHRS0))
217-469-8XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	ST JOSEPH	STJSILSHRS0	N/A	Prefix Type: RBOC Switch Name: ST JOSEPH Switch Type: N/A LATA: Champaign IL (370) Tandem: CHMPILCP51T 🔧 Explore Switch(CLLI: STJSILSHRS0))
217-469-9XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	ST JOSEPH	STJSILSHRS0	N/A	Prefix Type: RBOC Switch Name: ST JOSEPH Switch Type: N/A LATA: Champaign IL (370) Tandem: CHMPILCP51T 🔧 Explore Switch(CLLI: STJSILSHRS0))
217-470	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	SPRINGFLD	SPFDILES52T	00/00/0000	Prefix Type: RBOC Switch Name: SPRINGFIELD Switch Type: Northern Telecom DMS200 (Digital) Host LATA: Springfield IL (374) Tandem: N/A 🔧 Explore Switch(CLLI: SPFDILES52T))
217-475	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	DECATUR	DCTRILDCDS0	00/00/0000	Prefix Type: RBOC Switch Name: DECATUR MAIN DS0 Switch Type: DMS1/2 LATA: Springfield IL (374) Tandem: DCTRILDC51T 🔧 Explore Switch(CLLI: DCTRILDCDS0))
217-475 is split into 1,000-number blocks - detail below
217-475-0XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	DECATUR	DCTRILDCDS0	N/A	Prefix Type: RBOC Switch Name: DECATUR MAIN DS0 Switch Type: DMS1/2 LATA: Springfield IL (374) Tandem: DCTRILDC51T 🔧 Explore Switch(CLLI: DCTRILDCDS0))
217-475-2XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	DECATUR	DCTRILDCDS0	N/A	Prefix Type: RBOC Switch Name: DECATUR MAIN DS0 Switch Type: DMS1/2 LATA: Springfield IL (374) Tandem: DCTRILDC51T 🔧 Explore Switch(CLLI: DCTRILDCDS0))
217-475-3XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	DECATUR	DCTRILDCDS0	N/A	Prefix Type: RBOC Switch Name: DECATUR MAIN DS0 Switch Type: DMS1/2 LATA: Springfield IL (374) Tandem: DCTRILDC51T 🔧 Explore Switch(CLLI: DCTRILDCDS0))
217-475-4XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	DECATUR	DCTRILDCDS0	N/A	Prefix Type: RBOC Switch Name: DECATUR MAIN DS0 Switch Type: DMS1/2 LATA: Springfield IL (374) Tandem: DCTRILDC51T 🔧 Explore Switch(CLLI: DCTRILDCDS0))
217-475-5XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	DECATUR	DCTRILDCDS0	N/A	Prefix Type: RBOC Switch Name: DECATUR MAIN DS0 Switch Type: DMS1/2 LATA: Springfield IL (374) Tandem: DCTRILDC51T 🔧 Explore Switch(CLLI: DCTRILDCDS0))
217-475-6XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	DECATUR	DCTRILDCDS0	N/A	Prefix Type: RBOC Switch Name: DECATUR MAIN DS0 Switch Type: DMS1/2 LATA: Springfield IL (374) Tandem: DCTRILDC51T 🔧 Explore Switch(CLLI: DCTRILDCDS0))
217-475-7XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	DECATUR	DCTRILDCDS0	N/A	Prefix Type: RBOC Switch Name: DECATUR MAIN DS0 Switch Type: DMS1/2 LATA: Springfield IL (374) Tandem: DCTRILDC51T 🔧 Explore Switch(CLLI: DCTRILDCDS0))
217-475-8XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	DECATUR	DCTRILDCDS0	N/A	Prefix Type: RBOC Switch Name: DECATUR MAIN DS0 Switch Type: DMS1/2 LATA: Springfield IL (374) Tandem: DCTRILDC51T 🔧 Explore Switch(CLLI: DCTRILDCDS0))
217-475-9XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	DECATUR	DCTRILDCDS0	N/A	Prefix Type: RBOC Switch Name: DECATUR MAIN DS0 Switch Type: DMS1/2 LATA: Springfield IL (374) Tandem: DCTRILDC51T 🔧 Explore Switch(CLLI: DCTRILDCDS0))
217-477	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	DANVILLE	DAVLILDADS1	00/00/0000	Prefix Type: RBOC Switch Name: DANVILLE Switch Type: EWSD LATA: Champaign IL (370) Tandem: CHMPILCP51T 🔧 Explore Switch(CLLI: DAVLILDADS1))
217-487	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CANTRALL	CNTRILCTRS0	00/00/0000	Prefix Type: RBOC Switch Name: CANTRALL Switch Type: N/A LATA: Springfield IL (374) Tandem: SPFDILES52T 🔧 Explore Switch(CLLI: CNTRILCTRS0))
217-487 is split into 1,000-number blocks - detail below
217-487-7XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CANTRALL	CNTRILCTRS0	N/A	Prefix Type: RBOC Switch Name: CANTRALL Switch Type: N/A LATA: Springfield IL (374) Tandem: SPFDILES52T 🔧 Explore Switch(CLLI: CNTRILCTRS0))
217-492	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	SPRINGFLD	SPFDILESDS2	00/00/0000	Prefix Type: RBOC Switch Name: SPRINGFIELD MAIN DS2 Switch Type: DMS100 LATA: Springfield IL (374) Tandem: SPFDILES52T 🔧 Explore Switch(CLLI: SPFDILESDS2))
217-492 is split into 1,000-number blocks - detail below
217-492-1XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	SPRINGFLD	SPFDILESDS2	N/A	Prefix Type: RBOC Switch Name: SPRINGFIELD MAIN DS2 Switch Type: DMS100 LATA: Springfield IL (374) Tandem: SPFDILES52T 🔧 Explore Switch(CLLI: SPFDILESDS2))
217-492-2XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	SPRINGFLD	SPFDILESDS2	N/A	Prefix Type: RBOC Switch Name: SPRINGFIELD MAIN DS2 Switch Type: DMS100 LATA: Springfield IL (374) Tandem: SPFDILES52T 🔧 Explore Switch(CLLI: SPFDILESDS2))
217-492-3XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	SPRINGFLD	SPFDILESDS2	N/A	Prefix Type: RBOC Switch Name: SPRINGFIELD MAIN DS2 Switch Type: DMS100 LATA: Springfield IL (374) Tandem: SPFDILES52T 🔧 Explore Switch(CLLI: SPFDILESDS2))
217-492-4XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	SPRINGFLD	SPFDILESDS2	N/A	Prefix Type: RBOC Switch Name: SPRINGFIELD MAIN DS2 Switch Type: DMS100 LATA: Springfield IL (374) Tandem: SPFDILES52T 🔧 Explore Switch(CLLI: SPFDILESDS2))
217-492-5XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	SPRINGFLD	SPFDILESDS2	N/A	Prefix Type: RBOC Switch Name: SPRINGFIELD MAIN DS2 Switch Type: DMS100 LATA: Springfield IL (374) Tandem: SPFDILES52T 🔧 Explore Switch(CLLI: SPFDILESDS2))
217-492-6XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	SPRINGFLD	SPFDILESDS2	N/A	Prefix Type: RBOC Switch Name: SPRINGFIELD MAIN DS2 Switch Type: DMS100 LATA: Springfield IL (374) Tandem: SPFDILES52T 🔧 Explore Switch(CLLI: SPFDILESDS2))
217-492-7XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	SPRINGFLD	SPFDILESDS2	N/A	Prefix Type: RBOC Switch Name: SPRINGFIELD MAIN DS2 Switch Type: DMS100 LATA: Springfield IL (374) Tandem: SPFDILES52T 🔧 Explore Switch(CLLI: SPFDILESDS2))
217-492-9XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	SPRINGFLD	SPFDILESDS2	N/A	Prefix Type: RBOC Switch Name: SPRINGFIELD MAIN DS2 Switch Type: DMS100 LATA: Springfield IL (374) Tandem: SPFDILES52T 🔧 Explore Switch(CLLI: SPFDILESDS2))
217-498	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	ROCHESTER	ROCHILRCRS0	00/00/0000	Prefix Type: RBOC Switch Name: ROCHESTER Switch Type: N/A LATA: Springfield IL (374) Tandem: SPFDILES52T 🔧 Explore Switch(CLLI: ROCHILRCRS0))
217-498 is split into 1,000-number blocks - detail below
217-498-0XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	ROCHESTER	ROCHILRCRS0	N/A	Prefix Type: RBOC Switch Name: ROCHESTER Switch Type: N/A LATA: Springfield IL (374) Tandem: SPFDILES52T 🔧 Explore Switch(CLLI: ROCHILRCRS0))
217-498-2XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	ROCHESTER	ROCHILRCRS0	N/A	Prefix Type: RBOC Switch Name: ROCHESTER Switch Type: N/A LATA: Springfield IL (374) Tandem: SPFDILES52T 🔧 Explore Switch(CLLI: ROCHILRCRS0))
217-498-6XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	ROCHESTER	ROCHILRCRS0	N/A	Prefix Type: RBOC Switch Name: ROCHESTER Switch Type: N/A LATA: Springfield IL (374) Tandem: SPFDILES52T 🔧 Explore Switch(CLLI: ROCHILRCRS0))
217-498-7XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	ROCHESTER	ROCHILRCRS0	N/A	Prefix Type: RBOC Switch Name: ROCHESTER Switch Type: N/A LATA: Springfield IL (374) Tandem: SPFDILES52T 🔧 Explore Switch(CLLI: ROCHILRCRS0))
217-498-8XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	ROCHESTER	ROCHILRCRS0	N/A	Prefix Type: RBOC Switch Name: ROCHESTER Switch Type: N/A LATA: Springfield IL (374) Tandem: SPFDILES52T 🔧 Explore Switch(CLLI: ROCHILRCRS0))
217-498-9XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	ROCHESTER	ROCHILRCRS0	N/A	Prefix Type: RBOC Switch Name: ROCHESTER Switch Type: N/A LATA: Springfield IL (374) Tandem: SPFDILES52T 🔧 Explore Switch(CLLI: ROCHILRCRS0))
217-522	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	SPRINGFLD	SPFDILESDS2	00/00/0000	Prefix Type: RBOC Switch Name: SPRINGFIELD MAIN DS2 Switch Type: DMS100 LATA: Springfield IL (374) Tandem: SPFDILES52T 🔧 Explore Switch(CLLI: SPFDILESDS2))
217-523	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	SPRINGFLD	SPFDILESDS2	00/00/0000	Prefix Type: RBOC Switch Name: SPRINGFIELD MAIN DS2 Switch Type: DMS100 LATA: Springfield IL (374) Tandem: SPFDILES52T 🔧 Explore Switch(CLLI: SPFDILESDS2))
217-524	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	SPRINGFLD	SPFDILESDS1	00/00/0000	Prefix Type: RBOC Switch Name: SPRINGFIELD MAIN DS1 Switch Type: DMS100 LATA: Springfield IL (374) Tandem: SPFDILES52T 🔧 Explore Switch(CLLI: SPFDILESDS1))
217-525	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	SPRINGFLD	SPFDILESDS2	00/00/0000	Prefix Type: RBOC Switch Name: SPRINGFIELD MAIN DS2 Switch Type: DMS100 LATA: Springfield IL (374) Tandem: SPFDILES52T 🔧 Explore Switch(CLLI: SPFDILESDS2))
217-527	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	SPRINGFLD	SPFDILESDS2	00/00/0000	Prefix Type: RBOC Switch Name: SPRINGFIELD MAIN DS2 Switch Type: DMS100 LATA: Springfield IL (374) Tandem: SPFDILES52T 🔧 Explore Switch(CLLI: SPFDILESDS2))
217-528	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	SPRINGFLD	SPFDILESDS2	00/00/0000	Prefix Type: RBOC Switch Name: SPRINGFIELD MAIN DS2 Switch Type: DMS100 LATA: Springfield IL (374) Tandem: SPFDILES52T 🔧 Explore Switch(CLLI: SPFDILESDS2))
217-529	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	SPRINGFLD	SPFDILSLDS0	00/00/0000	Prefix Type: RBOC Switch Name: SPRINGFIELD LAKE DS0 Switch Type: DMS100 LATA: Springfield IL (374) Tandem: SPFDILES52T 🔧 Explore Switch(CLLI: SPFDILSLDS0))
217-535	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	SPRINGFLD	SPFDILESDS2	00/00/0000	Prefix Type: RBOC Switch Name: SPRINGFIELD MAIN DS2 Switch Type: DMS100 LATA: Springfield IL (374) Tandem: SPFDILES52T 🔧 Explore Switch(CLLI: SPFDILESDS2))
217-535 is split into 1,000-number blocks - detail below
217-535-0XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	SPRINGFLD	SPFDILESDS2	N/A	Prefix Type: RBOC Switch Name: SPRINGFIELD MAIN DS2 Switch Type: DMS100 LATA: Springfield IL (374) Tandem: SPFDILES52T 🔧 Explore Switch(CLLI: SPFDILESDS2))
217-535-1XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	SPRINGFLD	SPFDILESDS2	N/A	Prefix Type: RBOC Switch Name: SPRINGFIELD MAIN DS2 Switch Type: DMS100 LATA: Springfield IL (374) Tandem: SPFDILES52T 🔧 Explore Switch(CLLI: SPFDILESDS2))
217-535-2XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	SPRINGFLD	SPFDILESDS2	N/A	Prefix Type: RBOC Switch Name: SPRINGFIELD MAIN DS2 Switch Type: DMS100 LATA: Springfield IL (374) Tandem: SPFDILES52T 🔧 Explore Switch(CLLI: SPFDILESDS2))
217-535-3XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	SPRINGFLD	SPFDILESDS2	N/A	Prefix Type: RBOC Switch Name: SPRINGFIELD MAIN DS2 Switch Type: DMS100 LATA: Springfield IL (374) Tandem: SPFDILES52T 🔧 Explore Switch(CLLI: SPFDILESDS2))
217-535-4XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	SPRINGFLD	SPFDILESDS2	N/A	Prefix Type: RBOC Switch Name: SPRINGFIELD MAIN DS2 Switch Type: DMS100 LATA: Springfield IL (374) Tandem: SPFDILES52T 🔧 Explore Switch(CLLI: SPFDILESDS2))
217-535-5XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	SPRINGFLD	SPFDILESDS2	N/A	Prefix Type: RBOC Switch Name: SPRINGFIELD MAIN DS2 Switch Type: DMS100 LATA: Springfield IL (374) Tandem: SPFDILES52T 🔧 Explore Switch(CLLI: SPFDILESDS2))
217-535-6XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	SPRINGFLD	SPFDILESDS2	N/A	Prefix Type: RBOC Switch Name: SPRINGFIELD MAIN DS2 Switch Type: DMS100 LATA: Springfield IL (374) Tandem: SPFDILES52T 🔧 Explore Switch(CLLI: SPFDILESDS2))
217-535-7XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	SPRINGFLD	SPFDILESDS2	N/A	Prefix Type: RBOC Switch Name: SPRINGFIELD MAIN DS2 Switch Type: DMS100 LATA: Springfield IL (374) Tandem: SPFDILES52T 🔧 Explore Switch(CLLI: SPFDILESDS2))
217-535-8XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	SPRINGFLD	SPFDILESDS2	N/A	Prefix Type: RBOC Switch Name: SPRINGFIELD MAIN DS2 Switch Type: DMS100 LATA: Springfield IL (374) Tandem: SPFDILES52T 🔧 Explore Switch(CLLI: SPFDILESDS2))
217-541	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	SPRINGFLD	SPFDILESDS2	00/00/0000	Prefix Type: RBOC Switch Name: SPRINGFIELD MAIN DS2 Switch Type: DMS100 LATA: Springfield IL (374) Tandem: SPFDILES52T 🔧 Explore Switch(CLLI: SPFDILESDS2))
217-541 is split into 1,000-number blocks - detail below
217-541-0XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	SPRINGFLD	SPFDILESDS2	N/A	Prefix Type: RBOC Switch Name: SPRINGFIELD MAIN DS2 Switch Type: DMS100 LATA: Springfield IL (374) Tandem: SPFDILES52T 🔧 Explore Switch(CLLI: SPFDILESDS2))
217-541-1XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	SPRINGFLD	SPFDILESDS2	N/A	Prefix Type: RBOC Switch Name: SPRINGFIELD MAIN DS2 Switch Type: DMS100 LATA: Springfield IL (374) Tandem: SPFDILES52T 🔧 Explore Switch(CLLI: SPFDILESDS2))
217-541-2XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	SPRINGFLD	SPFDILESDS2	N/A	Prefix Type: RBOC Switch Name: SPRINGFIELD MAIN DS2 Switch Type: DMS100 LATA: Springfield IL (374) Tandem: SPFDILES52T 🔧 Explore Switch(CLLI: SPFDILESDS2))
217-541-3XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	SPRINGFLD	SPFDILESDS2	N/A	Prefix Type: RBOC Switch Name: SPRINGFIELD MAIN DS2 Switch Type: DMS100 LATA: Springfield IL (374) Tandem: SPFDILES52T 🔧 Explore Switch(CLLI: SPFDILESDS2))
217-541-4XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	SPRINGFLD	SPFDILESDS2	N/A	Prefix Type: RBOC Switch Name: SPRINGFIELD MAIN DS2 Switch Type: DMS100 LATA: Springfield IL (374) Tandem: SPFDILES52T 🔧 Explore Switch(CLLI: SPFDILESDS2))
217-541-6XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	SPRINGFLD	SPFDILESDS2	N/A	Prefix Type: RBOC Switch Name: SPRINGFIELD MAIN DS2 Switch Type: DMS100 LATA: Springfield IL (374) Tandem: SPFDILES52T 🔧 Explore Switch(CLLI: SPFDILESDS2))
217-541-7XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	SPRINGFLD	SPFDILESDS2	N/A	Prefix Type: RBOC Switch Name: SPRINGFIELD MAIN DS2 Switch Type: DMS100 LATA: Springfield IL (374) Tandem: SPFDILES52T 🔧 Explore Switch(CLLI: SPFDILESDS2))
217-541-8XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	SPRINGFLD	SPFDILESDS2	N/A	Prefix Type: RBOC Switch Name: SPRINGFIELD MAIN DS2 Switch Type: DMS100 LATA: Springfield IL (374) Tandem: SPFDILES52T 🔧 Explore Switch(CLLI: SPFDILESDS2))
217-541-9XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	SPRINGFLD	SPFDILESDS2	N/A	Prefix Type: RBOC Switch Name: SPRINGFIELD MAIN DS2 Switch Type: DMS100 LATA: Springfield IL (374) Tandem: SPFDILES52T 🔧 Explore Switch(CLLI: SPFDILESDS2))
217-544	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	SPRINGFLD	SPFDILESDS2	00/00/0000	Prefix Type: RBOC Switch Name: SPRINGFIELD MAIN DS2 Switch Type: DMS100 LATA: Springfield IL (374) Tandem: SPFDILES52T 🔧 Explore Switch(CLLI: SPFDILESDS2))
217-545	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	SPRINGFLD	SPFDILESDS1	00/00/0000	Prefix Type: RBOC Switch Name: SPRINGFIELD MAIN DS1 Switch Type: DMS100 LATA: Springfield IL (374) Tandem: SPFDILES52T 🔧 Explore Switch(CLLI: SPFDILESDS1))
217-546	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	SPRINGFLD	SPFDILSWDS0	00/00/0000	Prefix Type: RBOC Switch Name: SPRINGFIELD WEST Switch Type: DMS100 LATA: Springfield IL (374) Tandem: SPFDILES52T 🔧 Explore Switch(CLLI: SPFDILSWDS0))
217-547	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	SPRINGFLD	SPFDILSWDS0	00/00/0000	Prefix Type: RBOC Switch Name: SPRINGFIELD WEST Switch Type: DMS100 LATA: Springfield IL (374) Tandem: SPFDILES52T 🔧 Explore Switch(CLLI: SPFDILSWDS0))
217-548	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	FITHIAN	FTHNILFTRS0	00/00/0000	Prefix Type: RBOC Switch Name: FITHIAN Switch Type: N/A LATA: Champaign IL (370) Tandem: CHMPILCP51T 🔧 Explore Switch(CLLI: FTHNILFTRS0))
217-548 is split into 1,000-number blocks - detail below
217-548-2XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	FITHIAN	FTHNILFTRS0	N/A	Prefix Type: RBOC Switch Name: FITHIAN Switch Type: N/A LATA: Champaign IL (370) Tandem: CHMPILCP51T 🔧 Explore Switch(CLLI: FTHNILFTRS0))
217-554	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	DANVILLE	DAVLILDADS1	00/00/0000	Prefix Type: RBOC Switch Name: DANVILLE Switch Type: EWSD LATA: Champaign IL (370) Tandem: CHMPILCP51T 🔧 Explore Switch(CLLI: DAVLILDADS1))
217-554 is split into 1,000-number blocks - detail below
217-554-0XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	DANVILLE	DAVLILDADS1	N/A	Prefix Type: RBOC Switch Name: DANVILLE Switch Type: EWSD LATA: Champaign IL (370) Tandem: CHMPILCP51T 🔧 Explore Switch(CLLI: DAVLILDADS1))
217-554-1XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	DANVILLE	DAVLILDADS1	N/A	Prefix Type: RBOC Switch Name: DANVILLE Switch Type: EWSD LATA: Champaign IL (370) Tandem: CHMPILCP51T 🔧 Explore Switch(CLLI: DAVLILDADS1))
217-554-2XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	DANVILLE	DAVLILDADS1	N/A	Prefix Type: RBOC Switch Name: DANVILLE Switch Type: EWSD LATA: Champaign IL (370) Tandem: CHMPILCP51T 🔧 Explore Switch(CLLI: DAVLILDADS1))
217-554-3XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	DANVILLE	DAVLILDADS1	N/A	Prefix Type: RBOC Switch Name: DANVILLE Switch Type: EWSD LATA: Champaign IL (370) Tandem: CHMPILCP51T 🔧 Explore Switch(CLLI: DAVLILDADS1))
217-554-4XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	DANVILLE	DAVLILDADS1	N/A	Prefix Type: RBOC Switch Name: DANVILLE Switch Type: EWSD LATA: Champaign IL (370) Tandem: CHMPILCP51T 🔧 Explore Switch(CLLI: DAVLILDADS1))
217-554-5XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	DANVILLE	DAVLILDADS1	N/A	Prefix Type: RBOC Switch Name: DANVILLE Switch Type: EWSD LATA: Champaign IL (370) Tandem: CHMPILCP51T 🔧 Explore Switch(CLLI: DAVLILDADS1))
217-554-6XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	DANVILLE	DAVLILDADS1	N/A	Prefix Type: RBOC Switch Name: DANVILLE Switch Type: EWSD LATA: Champaign IL (370) Tandem: CHMPILCP51T 🔧 Explore Switch(CLLI: DAVLILDADS1))
217-554-7XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	DANVILLE	DAVLILDADS1	N/A	Prefix Type: RBOC Switch Name: DANVILLE Switch Type: EWSD LATA: Champaign IL (370) Tandem: CHMPILCP51T 🔧 Explore Switch(CLLI: DAVLILDADS1))
217-554-8XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	DANVILLE	DAVLILDADS1	N/A	Prefix Type: RBOC Switch Name: DANVILLE Switch Type: EWSD LATA: Champaign IL (370) Tandem: CHMPILCP51T 🔧 Explore Switch(CLLI: DAVLILDADS1))
217-557	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	SPRINGFLD	SPFDILESDS1	00/00/0000	Prefix Type: RBOC Switch Name: SPRINGFIELD MAIN DS1 Switch Type: DMS100 LATA: Springfield IL (374) Tandem: SPFDILES52T 🔧 Explore Switch(CLLI: SPFDILESDS1))
217-558	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	SPRINGFLD	SPFDILESDS1	00/00/0000	Prefix Type: RBOC Switch Name: SPRINGFIELD MAIN DS1 Switch Type: DMS100 LATA: Springfield IL (374) Tandem: SPFDILES52T 🔧 Explore Switch(CLLI: SPFDILESDS1))
217-585	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	SPRINGFLD	SPFDILSLDS0	00/00/0000	Prefix Type: RBOC Switch Name: SPRINGFIELD LAKE DS0 Switch Type: DMS100 LATA: Springfield IL (374) Tandem: SPFDILES52T 🔧 Explore Switch(CLLI: SPFDILSLDS0))
217-588	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	SPRINGFLD	SPFDILESDS2	00/00/0000	Prefix Type: RBOC Switch Name: SPRINGFIELD MAIN DS2 Switch Type: DMS100 LATA: Springfield IL (374) Tandem: SPFDILES52T 🔧 Explore Switch(CLLI: SPFDILESDS2))
217-588 is split into 1,000-number blocks - detail below
217-588-2XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	SPRINGFLD	SPFDILESDS2	07/03/2006	Prefix Type: RBOC Switch Name: SPRINGFIELD MAIN DS2 Switch Type: DMS100 LATA: Springfield IL (374) Tandem: SPFDILES52T 🔧 Explore Switch(CLLI: SPFDILESDS2))
217-588-3XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	SPRINGFLD	SPFDILESDS2	07/03/2006	Prefix Type: RBOC Switch Name: SPRINGFIELD MAIN DS2 Switch Type: DMS100 LATA: Springfield IL (374) Tandem: SPFDILES52T 🔧 Explore Switch(CLLI: SPFDILESDS2))
217-588-4XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	SPRINGFLD	SPFDILESDS2	07/03/2006	Prefix Type: RBOC Switch Name: SPRINGFIELD MAIN DS2 Switch Type: DMS100 LATA: Springfield IL (374) Tandem: SPFDILES52T 🔧 Explore Switch(CLLI: SPFDILESDS2))
217-588-5XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	SPRINGFLD	SPFDILESDS2	07/03/2006	Prefix Type: RBOC Switch Name: SPRINGFIELD MAIN DS2 Switch Type: DMS100 LATA: Springfield IL (374) Tandem: SPFDILES52T 🔧 Explore Switch(CLLI: SPFDILESDS2))
217-588-6XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	SPRINGFLD	SPFDILESDS2	07/03/2006	Prefix Type: RBOC Switch Name: SPRINGFIELD MAIN DS2 Switch Type: DMS100 LATA: Springfield IL (374) Tandem: SPFDILES52T 🔧 Explore Switch(CLLI: SPFDILESDS2))
217-588-7XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	SPRINGFLD	SPFDILESDS2	07/03/2006	Prefix Type: RBOC Switch Name: SPRINGFIELD MAIN DS2 Switch Type: DMS100 LATA: Springfield IL (374) Tandem: SPFDILES52T 🔧 Explore Switch(CLLI: SPFDILESDS2))
217-591	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHAMPAURBN	CHMPILCPDS0	00/00/0000	Prefix Type: RBOC Switch Name: CHAMPAIGN MAIN DS0 Switch Type: DMS1/2 LATA: Champaign IL (370) Tandem: CHMPILCP51T 🔧 Explore Switch(CLLI: CHMPILCPDS0))
217-592	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	QUINCY	QNCYILQYDS0	00/00/0000	Prefix Type: RBOC Switch Name: QUINCY Switch Type: EWSD LATA: Quincy IL (376) Tandem: JCVLILXC50T 🔧 Explore Switch(CLLI: QNCYILQYDS0))
217-592 is split into 1,000-number blocks - detail below
217-592-0XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	QUINCY	QNCYILQYDS0	N/A	Prefix Type: RBOC Switch Name: QUINCY Switch Type: EWSD LATA: Quincy IL (376) Tandem: JCVLILXC50T 🔧 Explore Switch(CLLI: QNCYILQYDS0))
217-592-1XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	QUINCY	QNCYILQYDS0	N/A	Prefix Type: RBOC Switch Name: QUINCY Switch Type: EWSD LATA: Quincy IL (376) Tandem: JCVLILXC50T 🔧 Explore Switch(CLLI: QNCYILQYDS0))
217-592-3XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	QUINCY	QNCYILQYDS0	N/A	Prefix Type: RBOC Switch Name: QUINCY Switch Type: EWSD LATA: Quincy IL (376) Tandem: JCVLILXC50T 🔧 Explore Switch(CLLI: QNCYILQYDS0))
217-592-4XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	QUINCY	QNCYILQYDS0	N/A	Prefix Type: RBOC Switch Name: QUINCY Switch Type: EWSD LATA: Quincy IL (376) Tandem: JCVLILXC50T 🔧 Explore Switch(CLLI: QNCYILQYDS0))
217-592-5XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	QUINCY	QNCYILQYDS0	N/A	Prefix Type: RBOC Switch Name: QUINCY Switch Type: EWSD LATA: Quincy IL (376) Tandem: JCVLILXC50T 🔧 Explore Switch(CLLI: QNCYILQYDS0))
217-592-7XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	QUINCY	QNCYILQYDS0	N/A	Prefix Type: RBOC Switch Name: QUINCY Switch Type: EWSD LATA: Quincy IL (376) Tandem: JCVLILXC50T 🔧 Explore Switch(CLLI: QNCYILQYDS0))
217-629	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	RIVERTON	RVTNILRVRS0	00/00/0000	Prefix Type: RBOC Switch Name: RIVERTON Switch Type: N/A LATA: Springfield IL (374) Tandem: SPFDILES52T 🔧 Explore Switch(CLLI: RVTNILRVRS0))
217-629 is split into 1,000-number blocks - detail below
217-629-7XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	RIVERTON	RVTNILRVRS0	N/A	Prefix Type: RBOC Switch Name: RIVERTON Switch Type: N/A LATA: Springfield IL (374) Tandem: SPFDILES52T 🔧 Explore Switch(CLLI: RVTNILRVRS0))
217-629-8XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	RIVERTON	RVTNILRVRS0	N/A	Prefix Type: RBOC Switch Name: RIVERTON Switch Type: N/A LATA: Springfield IL (374) Tandem: SPFDILES52T 🔧 Explore Switch(CLLI: RVTNILRVRS0))
217-629-9XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	RIVERTON	RVTNILRVRS0	N/A	Prefix Type: RBOC Switch Name: RIVERTON Switch Type: N/A LATA: Springfield IL (374) Tandem: SPFDILES52T 🔧 Explore Switch(CLLI: RVTNILRVRS0))
217-632	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	PETERSBURG	PTBGILPGRS0	00/00/0000	Prefix Type: RBOC Switch Name: PETERSBURG Switch Type: N/A LATA: Springfield IL (374) Tandem: SPFDILES52T 🔧 Explore Switch(CLLI: PTBGILPGRS0))
217-632 is split into 1,000-number blocks - detail below
217-632-0XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	PETERSBURG	PTBGILPGRS0	N/A	Prefix Type: RBOC Switch Name: PETERSBURG Switch Type: N/A LATA: Springfield IL (374) Tandem: SPFDILES52T 🔧 Explore Switch(CLLI: PTBGILPGRS0))
217-632-2XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	PETERSBURG	PTBGILPGRS0	N/A	Prefix Type: RBOC Switch Name: PETERSBURG Switch Type: N/A LATA: Springfield IL (374) Tandem: SPFDILES52T 🔧 Explore Switch(CLLI: PTBGILPGRS0))
217-632-3XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	PETERSBURG	PTBGILPGRS0	N/A	Prefix Type: RBOC Switch Name: PETERSBURG Switch Type: N/A LATA: Springfield IL (374) Tandem: SPFDILES52T 🔧 Explore Switch(CLLI: PTBGILPGRS0))
217-632-4XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	PETERSBURG	PTBGILPGRS0	N/A	Prefix Type: RBOC Switch Name: PETERSBURG Switch Type: N/A LATA: Springfield IL (374) Tandem: SPFDILES52T 🔧 Explore Switch(CLLI: PTBGILPGRS0))
217-632-5XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	PETERSBURG	PTBGILPGRS0	N/A	Prefix Type: RBOC Switch Name: PETERSBURG Switch Type: N/A LATA: Springfield IL (374) Tandem: SPFDILES52T 🔧 Explore Switch(CLLI: PTBGILPGRS0))
217-632-7XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	PETERSBURG	PTBGILPGRS0	N/A	Prefix Type: RBOC Switch Name: PETERSBURG Switch Type: N/A LATA: Springfield IL (374) Tandem: SPFDILES52T 🔧 Explore Switch(CLLI: PTBGILPGRS0))
217-634	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	TALLULA	TALLILTLRS0	00/00/0000	Prefix Type: RBOC Switch Name: TALLULA Switch Type: N/A LATA: Springfield IL (374) Tandem: SPFDILES52T 🔧 Explore Switch(CLLI: TALLILTLRS0))
217-634 is split into 1,000-number blocks - detail below
217-634-4XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	TALLULA	TALLILTLRS0	N/A	Prefix Type: RBOC Switch Name: TALLULA Switch Type: N/A LATA: Springfield IL (374) Tandem: SPFDILES52T 🔧 Explore Switch(CLLI: TALLILTLRS0))
217-635	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	OAKFORD	OKFRILOFRS0	00/00/0000	Prefix Type: RBOC Switch Name: OAKFORD Switch Type: N/A LATA: Springfield IL (374) Tandem: SPFDILES52T 🔧 Explore Switch(CLLI: OKFRILOFRS0))
217-635 is split into 1,000-number blocks - detail below
217-635-5XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	OAKFORD	OKFRILOFRS0	N/A	Prefix Type: RBOC Switch Name: OAKFORD Switch Type: N/A LATA: Springfield IL (374) Tandem: SPFDILES52T 🔧 Explore Switch(CLLI: OKFRILOFRS0))
217-636	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	ATHENS	ATHNILANRS0	00/00/0000	Prefix Type: RBOC Switch Name: ATHENS Switch Type: N/A LATA: Springfield IL (374) Tandem: SPFDILES52T 🔧 Explore Switch(CLLI: ATHNILANRS0))
217-636 is split into 1,000-number blocks - detail below
217-636-7XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	ATHENS	ATHNILANRS0	N/A	Prefix Type: RBOC Switch Name: ATHENS Switch Type: N/A LATA: Springfield IL (374) Tandem: SPFDILES52T 🔧 Explore Switch(CLLI: ATHNILANRS0))
217-636-8XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	ATHENS	ATHNILANRS0	N/A	Prefix Type: RBOC Switch Name: ATHENS Switch Type: N/A LATA: Springfield IL (374) Tandem: SPFDILES52T 🔧 Explore Switch(CLLI: ATHNILANRS0))
217-645	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	LIBERTY	LBRTILLBRS0	00/00/0000	Prefix Type: RBOC Switch Name: LIBERTY Switch Type: N/A LATA: Quincy IL (376) Tandem: JCVLILXC50T 🔧 Explore Switch(CLLI: LBRTILLBRS0))
217-645 is split into 1,000-number blocks - detail below
217-645-3XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	LIBERTY	LBRTILLBRS0	N/A	Prefix Type: RBOC Switch Name: LIBERTY Switch Type: N/A LATA: Quincy IL (376) Tandem: JCVLILXC50T 🔧 Explore Switch(CLLI: LBRTILLBRS0))
217-656	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	PAYSON	PYSNILPYRS0	00/00/0000	Prefix Type: RBOC Switch Name: PAYSON Switch Type: N/A LATA: Quincy IL (376) Tandem: JCVLILXC50T 🔧 Explore Switch(CLLI: PYSNILPYRS0))
217-656 is split into 1,000-number blocks - detail below
217-656-3XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	PAYSON	PYSNILPYRS0	N/A	Prefix Type: RBOC Switch Name: PAYSON Switch Type: N/A LATA: Quincy IL (376) Tandem: JCVLILXC50T 🔧 Explore Switch(CLLI: PYSNILPYRS0))
217-656-4XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	PAYSON	PYSNILPYRS0	N/A	Prefix Type: RBOC Switch Name: PAYSON Switch Type: N/A LATA: Quincy IL (376) Tandem: JCVLILXC50T 🔧 Explore Switch(CLLI: PYSNILPYRS0))
217-662	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	GEORGETOWN	GRTWILGTRS1	00/00/0000	Prefix Type: RBOC Switch Name: GEORGETOWN Switch Type: N/A LATA: Champaign IL (370) Tandem: CHMPILCP51T 🔧 Explore Switch(CLLI: GRTWILGTRS1))
217-662 is split into 1,000-number blocks - detail below
217-662-2XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	GEORGETOWN	GRTWILGTRS1	N/A	Prefix Type: RBOC Switch Name: GEORGETOWN Switch Type: N/A LATA: Champaign IL (370) Tandem: CHMPILCP51T 🔧 Explore Switch(CLLI: GRTWILGTRS1))
217-662-6XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	GEORGETOWN	GRTWILGTRS1	N/A	Prefix Type: RBOC Switch Name: GEORGETOWN Switch Type: N/A LATA: Champaign IL (370) Tandem: CHMPILCP51T 🔧 Explore Switch(CLLI: GRTWILGTRS1))
217-662-8XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	GEORGETOWN	GRTWILGTRS1	N/A	Prefix Type: RBOC Switch Name: GEORGETOWN Switch Type: N/A LATA: Champaign IL (370) Tandem: CHMPILCP51T 🔧 Explore Switch(CLLI: GRTWILGTRS1))
217-666	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	WEST DANA	DANAIN01RSA	00/00/0000	Prefix Type: RBOC Switch Name: DANA Switch Type: N/A LATA: Indianapolis IN (336) Tandem: CFVLIN0104T 🔧 Explore Switch(CLLI: DANAIN01RSA))
217-666 is split into 1,000-number blocks - detail below
217-666-3XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	WEST DANA	DANAIN01RSA	N/A	Prefix Type: RBOC Switch Name: DANA Switch Type: N/A LATA: Indianapolis IN (336) Tandem: CFVLIN0104T 🔧 Explore Switch(CLLI: DANAIN01RSA))
217-693	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHAMPAURBN	CHMPILCPDS0	00/00/0000	Prefix Type: RBOC Switch Name: CHAMPAIGN MAIN DS0 Switch Type: DMS1/2 LATA: Champaign IL (370) Tandem: CHMPILCP51T 🔧 Explore Switch(CLLI: CHMPILCPDS0))
217-693 is split into 1,000-number blocks - detail below
217-693-0XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHAMPAURBN	CHMPILCPDS0	N/A	Prefix Type: RBOC Switch Name: CHAMPAIGN MAIN DS0 Switch Type: DMS1/2 LATA: Champaign IL (370) Tandem: CHMPILCP51T 🔧 Explore Switch(CLLI: CHMPILCPDS0))
217-698	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	SPRINGFLD	SPFDILSWDS0	00/00/0000	Prefix Type: RBOC Switch Name: SPRINGFIELD WEST Switch Type: DMS100 LATA: Springfield IL (374) Tandem: SPFDILES52T 🔧 Explore Switch(CLLI: SPFDILSWDS0))
217-726	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	SPRINGFLD	SPFDILSWDS0	00/00/0000	Prefix Type: RBOC Switch Name: SPRINGFIELD WEST Switch Type: DMS100 LATA: Springfield IL (374) Tandem: SPFDILES52T 🔧 Explore Switch(CLLI: SPFDILSWDS0))
217-733	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	FAIRMOUNT	FAMTILFARS0	00/00/0000	Prefix Type: RBOC Switch Name: FAIRMOUNT Switch Type: N/A LATA: Champaign IL (370) Tandem: CHMPILCP51T 🔧 Explore Switch(CLLI: FAMTILFARS0))
217-733 is split into 1,000-number blocks - detail below
217-733-2XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	FAIRMOUNT	FAMTILFARS0	N/A	Prefix Type: RBOC Switch Name: FAIRMOUNT Switch Type: N/A LATA: Champaign IL (370) Tandem: CHMPILCP51T 🔧 Explore Switch(CLLI: FAMTILFARS0))
217-744	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	SPRINGFLD	SPFDILESDS2	00/00/0000	Prefix Type: RBOC Switch Name: SPRINGFIELD MAIN DS2 Switch Type: DMS100 LATA: Springfield IL (374) Tandem: SPFDILES52T 🔧 Explore Switch(CLLI: SPFDILESDS2))
217-747	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	SPRINGFLD	SPFDILESDS2	00/00/0000	Prefix Type: RBOC Switch Name: SPRINGFIELD MAIN DS2 Switch Type: DMS100 LATA: Springfield IL (374) Tandem: SPFDILES52T 🔧 Explore Switch(CLLI: SPFDILESDS2))
217-747 is split into 1,000-number blocks - detail below
217-747-0XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	SPRINGFLD	SPFDILESDS2	N/A	Prefix Type: RBOC Switch Name: SPRINGFIELD MAIN DS2 Switch Type: DMS100 LATA: Springfield IL (374) Tandem: SPFDILES52T 🔧 Explore Switch(CLLI: SPFDILESDS2))
217-747-1XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	SPRINGFLD	SPFDILESDS2	N/A	Prefix Type: RBOC Switch Name: SPRINGFIELD MAIN DS2 Switch Type: DMS100 LATA: Springfield IL (374) Tandem: SPFDILES52T 🔧 Explore Switch(CLLI: SPFDILESDS2))
217-747-4XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	SPRINGFLD	SPFDILESDS2	N/A	Prefix Type: RBOC Switch Name: SPRINGFIELD MAIN DS2 Switch Type: DMS100 LATA: Springfield IL (374) Tandem: SPFDILES52T 🔧 Explore Switch(CLLI: SPFDILESDS2))
217-747-5XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	SPRINGFLD	SPFDILESDS2	N/A	Prefix Type: RBOC Switch Name: SPRINGFIELD MAIN DS2 Switch Type: DMS100 LATA: Springfield IL (374) Tandem: SPFDILES52T 🔧 Explore Switch(CLLI: SPFDILESDS2))
217-747-6XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	SPRINGFLD	SPFDILESDS2	N/A	Prefix Type: RBOC Switch Name: SPRINGFIELD MAIN DS2 Switch Type: DMS100 LATA: Springfield IL (374) Tandem: SPFDILES52T 🔧 Explore Switch(CLLI: SPFDILESDS2))
217-747-7XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	SPRINGFLD	SPFDILESDS2	N/A	Prefix Type: RBOC Switch Name: SPRINGFIELD MAIN DS2 Switch Type: DMS100 LATA: Springfield IL (374) Tandem: SPFDILES52T 🔧 Explore Switch(CLLI: SPFDILESDS2))
217-747-8XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	SPRINGFLD	SPFDILESDS2	N/A	Prefix Type: RBOC Switch Name: SPRINGFIELD MAIN DS2 Switch Type: DMS100 LATA: Springfield IL (374) Tandem: SPFDILES52T 🔧 Explore Switch(CLLI: SPFDILESDS2))
217-747-9XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	SPRINGFLD	SPFDILESDS2	N/A	Prefix Type: RBOC Switch Name: SPRINGFIELD MAIN DS2 Switch Type: DMS100 LATA: Springfield IL (374) Tandem: SPFDILES52T 🔧 Explore Switch(CLLI: SPFDILESDS2))
217-753	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	SPRINGFLD	SPFDILESDS2	00/00/0000	Prefix Type: RBOC Switch Name: SPRINGFIELD MAIN DS2 Switch Type: DMS100 LATA: Springfield IL (374) Tandem: SPFDILES52T 🔧 Explore Switch(CLLI: SPFDILESDS2))
217-757	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	SPRINGFLD	SPFDILESDS2	00/00/0000	Prefix Type: RBOC Switch Name: SPRINGFIELD MAIN DS2 Switch Type: DMS100 LATA: Springfield IL (374) Tandem: SPFDILES52T 🔧 Explore Switch(CLLI: SPFDILESDS2))
217-757 is split into 1,000-number blocks - detail below
217-757-0XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	SPRINGFLD	SPFDILESDS2	N/A	Prefix Type: RBOC Switch Name: SPRINGFIELD MAIN DS2 Switch Type: DMS100 LATA: Springfield IL (374) Tandem: SPFDILES52T 🔧 Explore Switch(CLLI: SPFDILESDS2))
217-757-1XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	SPRINGFLD	SPFDILESDS2	N/A	Prefix Type: RBOC Switch Name: SPRINGFIELD MAIN DS2 Switch Type: DMS100 LATA: Springfield IL (374) Tandem: SPFDILES52T 🔧 Explore Switch(CLLI: SPFDILESDS2))
217-757-2XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	SPRINGFLD	SPFDILESDS2	N/A	Prefix Type: RBOC Switch Name: SPRINGFIELD MAIN DS2 Switch Type: DMS100 LATA: Springfield IL (374) Tandem: SPFDILES52T 🔧 Explore Switch(CLLI: SPFDILESDS2))
217-757-3XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	SPRINGFLD	SPFDILESDS2	N/A	Prefix Type: RBOC Switch Name: SPRINGFIELD MAIN DS2 Switch Type: DMS100 LATA: Springfield IL (374) Tandem: SPFDILES52T 🔧 Explore Switch(CLLI: SPFDILESDS2))
217-757-5XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	SPRINGFLD	SPFDILESDS2	N/A	Prefix Type: RBOC Switch Name: SPRINGFIELD MAIN DS2 Switch Type: DMS100 LATA: Springfield IL (374) Tandem: SPFDILES52T 🔧 Explore Switch(CLLI: SPFDILESDS2))
217-757-6XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	SPRINGFLD	SPFDILESDS2	N/A	Prefix Type: RBOC Switch Name: SPRINGFIELD MAIN DS2 Switch Type: DMS100 LATA: Springfield IL (374) Tandem: SPFDILES52T 🔧 Explore Switch(CLLI: SPFDILESDS2))
217-757-7XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	SPRINGFLD	SPFDILESDS2	N/A	Prefix Type: RBOC Switch Name: SPRINGFIELD MAIN DS2 Switch Type: DMS100 LATA: Springfield IL (374) Tandem: SPFDILES52T 🔧 Explore Switch(CLLI: SPFDILESDS2))
217-757-8XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	SPRINGFLD	SPFDILESDS2	N/A	Prefix Type: RBOC Switch Name: SPRINGFIELD MAIN DS2 Switch Type: DMS100 LATA: Springfield IL (374) Tandem: SPFDILES52T 🔧 Explore Switch(CLLI: SPFDILESDS2))
217-757-9XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	SPRINGFLD	SPFDILESDS2	N/A	Prefix Type: RBOC Switch Name: SPRINGFIELD MAIN DS2 Switch Type: DMS100 LATA: Springfield IL (374) Tandem: SPFDILES52T 🔧 Explore Switch(CLLI: SPFDILESDS2))
217-761	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	SPRINGFLD	SPFDILESDS2	00/00/0000	Prefix Type: RBOC Switch Name: SPRINGFIELD MAIN DS2 Switch Type: DMS100 LATA: Springfield IL (374) Tandem: SPFDILES52T 🔧 Explore Switch(CLLI: SPFDILESDS2))
217-761 is split into 1,000-number blocks - detail below
217-761-1XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	SPRINGFLD	SPFDILESDS2	04/24/2006	Prefix Type: RBOC Switch Name: SPRINGFIELD MAIN DS2 Switch Type: DMS100 LATA: Springfield IL (374) Tandem: SPFDILES52T 🔧 Explore Switch(CLLI: SPFDILESDS2))
217-761-2XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	SPRINGFLD	SPFDILESDS2	N/A	Prefix Type: RBOC Switch Name: SPRINGFIELD MAIN DS2 Switch Type: DMS100 LATA: Springfield IL (374) Tandem: SPFDILES52T 🔧 Explore Switch(CLLI: SPFDILESDS2))
217-761-3XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	SPRINGFLD	SPFDILESDS2	N/A	Prefix Type: RBOC Switch Name: SPRINGFIELD MAIN DS2 Switch Type: DMS100 LATA: Springfield IL (374) Tandem: SPFDILES52T 🔧 Explore Switch(CLLI: SPFDILESDS2))
217-782	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	SPRINGFLD	SPFDILESDS1	00/00/0000	Prefix Type: RBOC Switch Name: SPRINGFIELD MAIN DS1 Switch Type: DMS100 LATA: Springfield IL (374) Tandem: SPFDILES52T 🔧 Explore Switch(CLLI: SPFDILESDS1))
217-784	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	GIBSONCITY	GBCYILGBDS0	00/00/0000	Prefix Type: RBOC Switch Name: GIBSON CITY Switch Type: DMS10 LATA: Champaign IL (370) Tandem: CHMPILCP51T 🔧 Explore Switch(CLLI: GBCYILGBDS0))
217-784 is split into 1,000-number blocks - detail below
217-784-0XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	GIBSONCITY	GBCYILGBDS0	N/A	Prefix Type: RBOC Switch Name: GIBSON CITY Switch Type: DMS10 LATA: Champaign IL (370) Tandem: CHMPILCP51T 🔧 Explore Switch(CLLI: GBCYILGBDS0))
217-784-1XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	GIBSONCITY	GBCYILGBDS0	N/A	Prefix Type: RBOC Switch Name: GIBSON CITY Switch Type: DMS10 LATA: Champaign IL (370) Tandem: CHMPILCP51T 🔧 Explore Switch(CLLI: GBCYILGBDS0))
217-784-2XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	GIBSONCITY	GBCYILGBDS0	N/A	Prefix Type: RBOC Switch Name: GIBSON CITY Switch Type: DMS10 LATA: Champaign IL (370) Tandem: CHMPILCP51T 🔧 Explore Switch(CLLI: GBCYILGBDS0))
217-784-4XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	GIBSONCITY	GBCYILGBDS0	N/A	Prefix Type: RBOC Switch Name: GIBSON CITY Switch Type: DMS10 LATA: Champaign IL (370) Tandem: CHMPILCP51T 🔧 Explore Switch(CLLI: GBCYILGBDS0))
217-784-5XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	GIBSONCITY	GBCYILGBDS0	N/A	Prefix Type: RBOC Switch Name: GIBSON CITY Switch Type: DMS10 LATA: Champaign IL (370) Tandem: CHMPILCP51T 🔧 Explore Switch(CLLI: GBCYILGBDS0))
217-784-8XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	GIBSONCITY	GBCYILGBDS0	N/A	Prefix Type: RBOC Switch Name: GIBSON CITY Switch Type: DMS10 LATA: Champaign IL (370) Tandem: CHMPILCP51T 🔧 Explore Switch(CLLI: GBCYILGBDS0))
217-785	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	SPRINGFLD	SPFDILESDS1	00/00/0000	Prefix Type: RBOC Switch Name: SPRINGFIELD MAIN DS1 Switch Type: DMS100 LATA: Springfield IL (374) Tandem: SPFDILES52T 🔧 Explore Switch(CLLI: SPFDILESDS1))
217-786	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	SPRINGFLD	SPFDILSLRS0	00/00/0000	Prefix Type: RBOC Switch Name: SPRINGFIELD LAKE RS0 Switch Type: N/A LATA: Springfield IL (374) Tandem: SPFDILES52T 🔧 Explore Switch(CLLI: SPFDILSLRS0))
217-786 is split into 1,000-number blocks - detail below
217-786-0XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	SPRINGFLD	SPFDILSLRS0	N/A	Prefix Type: RBOC Switch Name: SPRINGFIELD LAKE RS0 Switch Type: N/A LATA: Springfield IL (374) Tandem: SPFDILES52T 🔧 Explore Switch(CLLI: SPFDILSLRS0))
217-786-1XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	SPRINGFLD	SPFDILSLRS0	N/A	Prefix Type: RBOC Switch Name: SPRINGFIELD LAKE RS0 Switch Type: N/A LATA: Springfield IL (374) Tandem: SPFDILES52T 🔧 Explore Switch(CLLI: SPFDILSLRS0))
217-786-2XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	SPRINGFLD	SPFDILSLRS0	N/A	Prefix Type: RBOC Switch Name: SPRINGFIELD LAKE RS0 Switch Type: N/A LATA: Springfield IL (374) Tandem: SPFDILES52T 🔧 Explore Switch(CLLI: SPFDILSLRS0))
217-786-3XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	SPRINGFLD	SPFDILSLRS0	N/A	Prefix Type: RBOC Switch Name: SPRINGFIELD LAKE RS0 Switch Type: N/A LATA: Springfield IL (374) Tandem: SPFDILES52T 🔧 Explore Switch(CLLI: SPFDILSLRS0))
217-786-4XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	SPRINGFLD	SPFDILSLRS0	N/A	Prefix Type: RBOC Switch Name: SPRINGFIELD LAKE RS0 Switch Type: N/A LATA: Springfield IL (374) Tandem: SPFDILES52T 🔧 Explore Switch(CLLI: SPFDILSLRS0))
217-786-5XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	SPRINGFLD	SPFDILSLRS0	N/A	Prefix Type: RBOC Switch Name: SPRINGFIELD LAKE RS0 Switch Type: N/A LATA: Springfield IL (374) Tandem: SPFDILES52T 🔧 Explore Switch(CLLI: SPFDILSLRS0))
217-786-6XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	SPRINGFLD	SPFDILSLRS0	N/A	Prefix Type: RBOC Switch Name: SPRINGFIELD LAKE RS0 Switch Type: N/A LATA: Springfield IL (374) Tandem: SPFDILES52T 🔧 Explore Switch(CLLI: SPFDILSLRS0))
217-786-7XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	SPRINGFLD	SPFDILSLRS0	N/A	Prefix Type: RBOC Switch Name: SPRINGFIELD LAKE RS0 Switch Type: N/A LATA: Springfield IL (374) Tandem: SPFDILES52T 🔧 Explore Switch(CLLI: SPFDILSLRS0))
217-786-9XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	SPRINGFLD	SPFDILSLRS0	N/A	Prefix Type: RBOC Switch Name: SPRINGFIELD LAKE RS0 Switch Type: N/A LATA: Springfield IL (374) Tandem: SPFDILES52T 🔧 Explore Switch(CLLI: SPFDILSLRS0))
217-787	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	SPRINGFLD	SPFDILSWDS0	00/00/0000	Prefix Type: RBOC Switch Name: SPRINGFIELD WEST Switch Type: DMS100 LATA: Springfield IL (374) Tandem: SPFDILES52T 🔧 Explore Switch(CLLI: SPFDILSWDS0))
217-788	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	SPRINGFLD	SPFDILESDS2	00/00/0000	Prefix Type: RBOC Switch Name: SPRINGFIELD MAIN DS2 Switch Type: DMS100 LATA: Springfield IL (374) Tandem: SPFDILES52T 🔧 Explore Switch(CLLI: SPFDILESDS2))
217-789	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	SPRINGFLD	SPFDILESDS2	00/00/0000	Prefix Type: RBOC Switch Name: SPRINGFIELD MAIN DS2 Switch Type: DMS100 LATA: Springfield IL (374) Tandem: SPFDILES52T 🔧 Explore Switch(CLLI: SPFDILESDS2))
217-793	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	SPRINGFLD	SPFDILSWDS0	00/00/0000	Prefix Type: RBOC Switch Name: SPRINGFIELD WEST Switch Type: DMS100 LATA: Springfield IL (374) Tandem: SPFDILES52T 🔧 Explore Switch(CLLI: SPFDILSWDS0))
217-814	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	SPRINGFLD	SPFDILESDS2	00/00/0000	Prefix Type: RBOC Switch Name: SPRINGFIELD MAIN DS2 Switch Type: DMS100 LATA: Springfield IL (374) Tandem: SPFDILES52T 🔧 Explore Switch(CLLI: SPFDILESDS2))
217-814 is split into 1,000-number blocks - detail below
217-814-4XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	SPRINGFLD	SPFDILESDS2	06/18/2012	Prefix Type: RBOC Switch Name: SPRINGFIELD MAIN DS2 Switch Type: DMS100 LATA: Springfield IL (374) Tandem: SPFDILES52T 🔧 Explore Switch(CLLI: SPFDILESDS2))
217-814-5XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	SPRINGFLD	SPFDILESDS2	06/18/2012	Prefix Type: RBOC Switch Name: SPRINGFIELD MAIN DS2 Switch Type: DMS100 LATA: Springfield IL (374) Tandem: SPFDILES52T 🔧 Explore Switch(CLLI: SPFDILESDS2))
217-814-7XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	SPRINGFLD	SPFDILESDS2	06/28/2013	Prefix Type: RBOC Switch Name: SPRINGFIELD MAIN DS2 Switch Type: DMS100 LATA: Springfield IL (374) Tandem: SPFDILES52T 🔧 Explore Switch(CLLI: SPFDILESDS2))
217-814-8XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	SPRINGFLD	SPFDILESDS2	06/28/2013	Prefix Type: RBOC Switch Name: SPRINGFIELD MAIN DS2 Switch Type: DMS100 LATA: Springfield IL (374) Tandem: SPFDILES52T 🔧 Explore Switch(CLLI: SPFDILESDS2))
217-862	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	SPRINGFLD	SPFDILSWDS0	00/00/0000	Prefix Type: RBOC Switch Name: SPRINGFIELD WEST Switch Type: DMS100 LATA: Springfield IL (374) Tandem: SPFDILES52T 🔧 Explore Switch(CLLI: SPFDILSWDS0))
217-862 is split into 1,000-number blocks - detail below
217-862-0XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	SPRINGFLD	SPFDILSWDS0	N/A	Prefix Type: RBOC Switch Name: SPRINGFIELD WEST Switch Type: DMS100 LATA: Springfield IL (374) Tandem: SPFDILES52T 🔧 Explore Switch(CLLI: SPFDILSWDS0))
217-862-1XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	SPRINGFLD	SPFDILSWDS0	N/A	Prefix Type: RBOC Switch Name: SPRINGFIELD WEST Switch Type: DMS100 LATA: Springfield IL (374) Tandem: SPFDILES52T 🔧 Explore Switch(CLLI: SPFDILSWDS0))
217-862-2XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	SPRINGFLD	SPFDILSWDS0	N/A	Prefix Type: RBOC Switch Name: SPRINGFIELD WEST Switch Type: DMS100 LATA: Springfield IL (374) Tandem: SPFDILES52T 🔧 Explore Switch(CLLI: SPFDILSWDS0))
217-862-5XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	SPRINGFLD	SPFDILSWDS0	N/A	Prefix Type: RBOC Switch Name: SPRINGFIELD WEST Switch Type: DMS100 LATA: Springfield IL (374) Tandem: SPFDILES52T 🔧 Explore Switch(CLLI: SPFDILSWDS0))
217-862-6XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	SPRINGFLD	SPFDILSWDS0	N/A	Prefix Type: RBOC Switch Name: SPRINGFIELD WEST Switch Type: DMS100 LATA: Springfield IL (374) Tandem: SPFDILES52T 🔧 Explore Switch(CLLI: SPFDILSWDS0))
217-862-7XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	SPRINGFLD	SPFDILSWDS0	N/A	Prefix Type: RBOC Switch Name: SPRINGFIELD WEST Switch Type: DMS100 LATA: Springfield IL (374) Tandem: SPFDILES52T 🔧 Explore Switch(CLLI: SPFDILSWDS0))
217-862-9XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	SPRINGFLD	SPFDILSWDS0	N/A	Prefix Type: RBOC Switch Name: SPRINGFIELD WEST Switch Type: DMS100 LATA: Springfield IL (374) Tandem: SPFDILES52T 🔧 Explore Switch(CLLI: SPFDILSWDS0))
217-872	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	DECATUR	DCTRILDNDS0	00/00/0000	Prefix Type: RBOC Switch Name: DECATUR NORTH Switch Type: DMS100 LATA: Springfield IL (374) Tandem: DCTRILDC51T 🔧 Explore Switch(CLLI: DCTRILDNDS0))
217-872 is split into 1,000-number blocks - detail below
217-872-0XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	DECATUR	DCTRILDNDS0	N/A	Prefix Type: RBOC Switch Name: DECATUR NORTH Switch Type: DMS100 LATA: Springfield IL (374) Tandem: DCTRILDC51T 🔧 Explore Switch(CLLI: DCTRILDNDS0))
217-872-1XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	DECATUR	DCTRILDNDS0	N/A	Prefix Type: RBOC Switch Name: DECATUR NORTH Switch Type: DMS100 LATA: Springfield IL (374) Tandem: DCTRILDC51T 🔧 Explore Switch(CLLI: DCTRILDNDS0))
217-872-2XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	DECATUR	DCTRILDNDS0	N/A	Prefix Type: RBOC Switch Name: DECATUR NORTH Switch Type: DMS100 LATA: Springfield IL (374) Tandem: DCTRILDC51T 🔧 Explore Switch(CLLI: DCTRILDNDS0))
217-872-3XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	DECATUR	DCTRILDNDS0	N/A	Prefix Type: RBOC Switch Name: DECATUR NORTH Switch Type: DMS100 LATA: Springfield IL (374) Tandem: DCTRILDC51T 🔧 Explore Switch(CLLI: DCTRILDNDS0))
217-872-4XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	DECATUR	DCTRILDNDS0	N/A	Prefix Type: RBOC Switch Name: DECATUR NORTH Switch Type: DMS100 LATA: Springfield IL (374) Tandem: DCTRILDC51T 🔧 Explore Switch(CLLI: DCTRILDNDS0))
217-872-5XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	DECATUR	DCTRILDNDS0	N/A	Prefix Type: RBOC Switch Name: DECATUR NORTH Switch Type: DMS100 LATA: Springfield IL (374) Tandem: DCTRILDC51T 🔧 Explore Switch(CLLI: DCTRILDNDS0))
217-872-6XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	DECATUR	DCTRILDNDS0	N/A	Prefix Type: RBOC Switch Name: DECATUR NORTH Switch Type: DMS100 LATA: Springfield IL (374) Tandem: DCTRILDC51T 🔧 Explore Switch(CLLI: DCTRILDNDS0))
217-872-7XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	DECATUR	DCTRILDNDS0	N/A	Prefix Type: RBOC Switch Name: DECATUR NORTH Switch Type: DMS100 LATA: Springfield IL (374) Tandem: DCTRILDC51T 🔧 Explore Switch(CLLI: DCTRILDNDS0))
217-872-8XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	DECATUR	DCTRILDNDS0	N/A	Prefix Type: RBOC Switch Name: DECATUR NORTH Switch Type: DMS100 LATA: Springfield IL (374) Tandem: DCTRILDC51T 🔧 Explore Switch(CLLI: DCTRILDNDS0))
217-875	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	DECATUR	DCTRILDNDS0	00/00/0000	Prefix Type: RBOC Switch Name: DECATUR NORTH Switch Type: DMS100 LATA: Springfield IL (374) Tandem: DCTRILDC51T 🔧 Explore Switch(CLLI: DCTRILDNDS0))
217-876	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	DECATUR	DCTRILDNDS0	00/00/0000	Prefix Type: RBOC Switch Name: DECATUR NORTH Switch Type: DMS100 LATA: Springfield IL (374) Tandem: DCTRILDC51T 🔧 Explore Switch(CLLI: DCTRILDNDS0))
217-877	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	DECATUR	DCTRILDNDS0	00/00/0000	Prefix Type: RBOC Switch Name: DECATUR NORTH Switch Type: DMS100 LATA: Springfield IL (374) Tandem: DCTRILDC51T 🔧 Explore Switch(CLLI: DCTRILDNDS0))
217-885	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	BURTON	BRTOILBURS0	00/00/0000	Prefix Type: RBOC Switch Name: BURTON Switch Type: N/A LATA: Quincy IL (376) Tandem: JCVLILXC50T 🔧 Explore Switch(CLLI: BRTOILBURS0))
217-885 is split into 1,000-number blocks - detail below
217-885-3XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	BURTON	BRTOILBURS0	N/A	Prefix Type: RBOC Switch Name: BURTON Switch Type: N/A LATA: Quincy IL (376) Tandem: JCVLILXC50T 🔧 Explore Switch(CLLI: BRTOILBURS0))
217-902	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHAMPAURBN	CHMPILCUDS0	02/16/2017	Prefix Type: RBOC Switch Name: CHAMPAIGN UNIV Switch Type: DMS100 LATA: Champaign IL (370) Tandem: CHMPILCP51T 🔧 Explore Switch(CLLI: CHMPILCUDS0))
217-902 is split into 1,000-number blocks - detail below
217-902-5XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHAMPAURBN	CHMPILCUDS0	02/17/2017	Prefix Type: RBOC Switch Name: CHAMPAIGN UNIV Switch Type: DMS100 LATA: Champaign IL (370) Tandem: CHMPILCP51T 🔧 Explore Switch(CLLI: CHMPILCUDS0))
217-902-6XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHAMPAURBN	CHMPILCUDS0	02/17/2017	Prefix Type: RBOC Switch Name: CHAMPAIGN UNIV Switch Type: DMS100 LATA: Champaign IL (370) Tandem: CHMPILCP51T 🔧 Explore Switch(CLLI: CHMPILCUDS0))
217-902-7XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHAMPAURBN	CHMPILCUDS0	02/17/2017	Prefix Type: RBOC Switch Name: CHAMPAIGN UNIV Switch Type: DMS100 LATA: Champaign IL (370) Tandem: CHMPILCP51T 🔧 Explore Switch(CLLI: CHMPILCUDS0))
217-902-8XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHAMPAURBN	CHMPILCUDS0	02/17/2017	Prefix Type: RBOC Switch Name: CHAMPAIGN UNIV Switch Type: DMS100 LATA: Champaign IL (370) Tandem: CHMPILCP51T 🔧 Explore Switch(CLLI: CHMPILCUDS0))
217-902-9XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHAMPAURBN	CHMPILCUDS0	02/17/2017	Prefix Type: RBOC Switch Name: CHAMPAIGN UNIV Switch Type: DMS100 LATA: Champaign IL (370) Tandem: CHMPILCP51T 🔧 Explore Switch(CLLI: CHMPILCUDS0))
217-904 is split into 1,000-number blocks - detail below
217-904-7XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHAMPAURBN	CHMPILCUDS0	02/28/2013	Prefix Type: RBOC Switch Name: CHAMPAIGN UNIV Switch Type: DMS100 LATA: Champaign IL (370) Tandem: CHMPILCP51T 🔧 Explore Switch(CLLI: CHMPILCUDS0))
217-963	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	HARRISTOWN	HRTWILHTRS0	00/00/0000	Prefix Type: RBOC Switch Name: HARRISTOWN Switch Type: N/A LATA: Springfield IL (374) Tandem: DCTRILDC51T 🔧 Explore Switch(CLLI: HRTWILHTRS0))
217-963 is split into 1,000-number blocks - detail below
217-963-1XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	HARRISTOWN	HRTWILHTRS0	N/A	Prefix Type: RBOC Switch Name: HARRISTOWN Switch Type: N/A LATA: Springfield IL (374) Tandem: DCTRILDC51T 🔧 Explore Switch(CLLI: HRTWILHTRS0))
217-963-2XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	HARRISTOWN	HRTWILHTRS0	N/A	Prefix Type: RBOC Switch Name: HARRISTOWN Switch Type: N/A LATA: Springfield IL (374) Tandem: DCTRILDC51T 🔧 Explore Switch(CLLI: HRTWILHTRS0))
217-993 is split into 1,000-number blocks - detail below
217-993-0XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	SPRINGFLD	SPFDILESDS2	06/28/2013	Prefix Type: RBOC Switch Name: SPRINGFIELD MAIN DS2 Switch Type: DMS100 LATA: Springfield IL (374) Tandem: SPFDILES52T 🔧 Explore Switch(CLLI: SPFDILESDS2))
224-212	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	LAKEFOREST	LKFRILLFDS0	11/12/2003	Prefix Type: RBOC Switch Name: LAKE FOREST Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILNE20T 🔧 Explore Switch(CLLI: LKFRILLFDS0))
224-212 is split into 1,000-number blocks - detail below
224-212-2XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	LAKEFOREST	LKFRILLFDS0	11/12/2003	Prefix Type: RBOC Switch Name: LAKE FOREST Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILNE20T 🔧 Explore Switch(CLLI: LKFRILLFDS0))
224-212-3XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	LAKEFOREST	LKFRILLFDS0	11/12/2003	Prefix Type: RBOC Switch Name: LAKE FOREST Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILNE20T 🔧 Explore Switch(CLLI: LKFRILLFDS0))
224-212-4XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	LAKEFOREST	LKFRILLFDS0	11/12/2003	Prefix Type: RBOC Switch Name: LAKE FOREST Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILNE20T 🔧 Explore Switch(CLLI: LKFRILLFDS0))
224-212-5XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	LAKEFOREST	LKFRILLFDS0	11/12/2003	Prefix Type: RBOC Switch Name: LAKE FOREST Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILNE20T 🔧 Explore Switch(CLLI: LKFRILLFDS0))
224-212-6XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	LAKEFOREST	LKFRILLFDS0	08/24/2004	Prefix Type: RBOC Switch Name: LAKE FOREST Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILNE20T 🔧 Explore Switch(CLLI: LKFRILLFDS0))
224-212-7XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	LAKEFOREST	LKFRILLFDS0	08/24/2004	Prefix Type: RBOC Switch Name: LAKE FOREST Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILNE20T 🔧 Explore Switch(CLLI: LKFRILLFDS0))
224-232	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	ARLIGTNHTS	ARLHILAHDS1	08/28/2002	Prefix Type: RBOC Switch Name: ARLINGTON HEIGHTS DS1 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILNE20T 🔧 Explore Switch(CLLI: ARLHILAHDS1))
224-232 is split into 1,000-number blocks - detail below
224-232-2XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	ARLIGTNHTS	ARLHILAHDS1	09/04/2002	Prefix Type: RBOC Switch Name: ARLINGTON HEIGHTS DS1 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILNE20T 🔧 Explore Switch(CLLI: ARLHILAHDS1))
224-232-3XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	ARLIGTNHTS	ARLHILAHDS1	09/04/2002	Prefix Type: RBOC Switch Name: ARLINGTON HEIGHTS DS1 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILNE20T 🔧 Explore Switch(CLLI: ARLHILAHDS1))
224-232-4XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	ARLIGTNHTS	ARLHILAHDS1	09/04/2002	Prefix Type: RBOC Switch Name: ARLINGTON HEIGHTS DS1 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILNE20T 🔧 Explore Switch(CLLI: ARLHILAHDS1))
224-232-6XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	ARLIGTNHTS	ARLHILAHDS1	09/04/2002	Prefix Type: RBOC Switch Name: ARLINGTON HEIGHTS DS1 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILNE20T 🔧 Explore Switch(CLLI: ARLHILAHDS1))
224-251	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	SKOKIE	SKOKILSKDS0	04/27/2012	Prefix Type: RBOC Switch Name: SKOKIE Switch Type: EWSD LATA: Chicago IL METRO (358) Tandem: CHCGILNE20T 🔧 Explore Switch(CLLI: SKOKILSKDS0))
224-251 is split into 1,000-number blocks - detail below
224-251-1XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	SKOKIE	SKOKILSKDS0	05/01/2012	Prefix Type: RBOC Switch Name: SKOKIE Switch Type: EWSD LATA: Chicago IL METRO (358) Tandem: CHCGILNE20T 🔧 Explore Switch(CLLI: SKOKILSKDS0))
224-251-2XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	SKOKIE	SKOKILSKDS0	05/01/2012	Prefix Type: RBOC Switch Name: SKOKIE Switch Type: EWSD LATA: Chicago IL METRO (358) Tandem: CHCGILNE20T 🔧 Explore Switch(CLLI: SKOKILSKDS0))
224-251-3XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	SKOKIE	SKOKILSKDS0	05/01/2012	Prefix Type: RBOC Switch Name: SKOKIE Switch Type: EWSD LATA: Chicago IL METRO (358) Tandem: CHCGILNE20T 🔧 Explore Switch(CLLI: SKOKILSKDS0))
224-251-4XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	SKOKIE	SKOKILSKDS0	05/01/2012	Prefix Type: RBOC Switch Name: SKOKIE Switch Type: EWSD LATA: Chicago IL METRO (358) Tandem: CHCGILNE20T 🔧 Explore Switch(CLLI: SKOKILSKDS0))
224-251-5XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	SKOKIE	SKOKILSKDS0	05/01/2012	Prefix Type: RBOC Switch Name: SKOKIE Switch Type: EWSD LATA: Chicago IL METRO (358) Tandem: CHCGILNE20T 🔧 Explore Switch(CLLI: SKOKILSKDS0))
224-293	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	DUNDEE	EDNDILDUDS0	09/19/2002	Prefix Type: RBOC Switch Name: DUNDEE Switch Type: EWSD LATA: Chicago IL METRO (358) Tandem: NCHCILNC20T 🔧 Explore Switch(CLLI: EDNDILDUDS0))
224-293 is split into 1,000-number blocks - detail below
224-293-3XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	DUNDEE	EDNDILDUDS0	09/30/2002	Prefix Type: RBOC Switch Name: DUNDEE Switch Type: EWSD LATA: Chicago IL METRO (358) Tandem: NCHCILNC20T 🔧 Explore Switch(CLLI: EDNDILDUDS0))
224-302	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	WAUKEGAN	NCHCILNCDS0	07/13/2012	Prefix Type: RBOC Switch Name: NORTH CHICAGO DS0 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILNE20T 🔧 Explore Switch(CLLI: NCHCILNCDS0))
224-302 is split into 1,000-number blocks - detail below
224-302-5XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	WAUKEGAN	NCHCILNCDS0	07/17/2012	Prefix Type: RBOC Switch Name: NORTH CHICAGO DS0 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILNE20T 🔧 Explore Switch(CLLI: NCHCILNCDS0))
224-361	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	DESPLAINES	DSPLILXLDS0	00/00/0000	Prefix Type: RBOC Switch Name: DES PLAINES DS0 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: LBRDILLM20T 🔧 Explore Switch(CLLI: DSPLILXLDS0))
224-361 is split into 1,000-number blocks - detail below
224-361-7XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	DESPLAINES	DSPLILXLDS0	01/19/2005	Prefix Type: RBOC Switch Name: DES PLAINES DS0 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: LBRDILLM20T 🔧 Explore Switch(CLLI: DSPLILXLDS0))
224-364	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	EVANSTON	EVTNILEVDS0	06/05/2003	Prefix Type: RBOC Switch Name: EVANSTON Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILNE20T 🔧 Explore Switch(CLLI: EVTNILEVDS0))
224-364 is split into 1,000-number blocks - detail below
224-364-0XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	EVANSTON	EVTNILEVDS0	06/05/2003	Prefix Type: RBOC Switch Name: EVANSTON Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILNE20T 🔧 Explore Switch(CLLI: EVTNILEVDS0))
224-364-1XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	EVANSTON	EVTNILEVDS0	06/05/2003	Prefix Type: RBOC Switch Name: EVANSTON Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILNE20T 🔧 Explore Switch(CLLI: EVTNILEVDS0))
224-364-2XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	EVANSTON	EVTNILEVDS0	06/05/2003	Prefix Type: RBOC Switch Name: EVANSTON Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILNE20T 🔧 Explore Switch(CLLI: EVTNILEVDS0))
224-364-3XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	EVANSTON	EVTNILEVDS0	06/05/2003	Prefix Type: RBOC Switch Name: EVANSTON Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILNE20T 🔧 Explore Switch(CLLI: EVTNILEVDS0))
224-364-4XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	EVANSTON	EVTNILEVDS0	06/05/2003	Prefix Type: RBOC Switch Name: EVANSTON Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILNE20T 🔧 Explore Switch(CLLI: EVTNILEVDS0))
224-364-5XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	EVANSTON	EVTNILEVDS0	06/05/2003	Prefix Type: RBOC Switch Name: EVANSTON Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILNE20T 🔧 Explore Switch(CLLI: EVTNILEVDS0))
224-364-6XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	EVANSTON	EVTNILEVDS0	06/05/2003	Prefix Type: RBOC Switch Name: EVANSTON Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILNE20T 🔧 Explore Switch(CLLI: EVTNILEVDS0))
224-364-7XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	EVANSTON	EVTNILEVDS0	06/05/2003	Prefix Type: RBOC Switch Name: EVANSTON Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILNE20T 🔧 Explore Switch(CLLI: EVTNILEVDS0))
224-364-8XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	EVANSTON	EVTNILEVDS0	06/05/2003	Prefix Type: RBOC Switch Name: EVANSTON Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILNE20T 🔧 Explore Switch(CLLI: EVTNILEVDS0))
224-364-9XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	EVANSTON	EVTNILEVDS0	06/05/2003	Prefix Type: RBOC Switch Name: EVANSTON Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILNE20T 🔧 Explore Switch(CLLI: EVTNILEVDS0))
224-399	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	WAUKEGAN	NCHCILNCDS0	01/04/2006	Prefix Type: RBOC Switch Name: NORTH CHICAGO DS0 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILNE20T 🔧 Explore Switch(CLLI: NCHCILNCDS0))
224-399 is split into 1,000-number blocks - detail below
224-399-2XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	WAUKEGAN	NCHCILNCDS0	01/05/2006	Prefix Type: RBOC Switch Name: NORTH CHICAGO DS0 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILNE20T 🔧 Explore Switch(CLLI: NCHCILNCDS0))
224-399-3XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	WAUKEGAN	NCHCILNCDS0	01/05/2006	Prefix Type: RBOC Switch Name: NORTH CHICAGO DS0 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILNE20T 🔧 Explore Switch(CLLI: NCHCILNCDS0))
224-404	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	ELK GROVE	EGVGILEGDS1	01/15/2013	Prefix Type: RBOC Switch Name: ELK GROVE EG DS1 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: NCHCILNC20T 🔧 Explore Switch(CLLI: EGVGILEGDS1))
224-404 is split into 1,000-number blocks - detail below
224-404-8XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	ELK GROVE	EGVGILEGDS1	02/28/2013	Prefix Type: RBOC Switch Name: ELK GROVE EG DS1 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: NCHCILNC20T 🔧 Explore Switch(CLLI: EGVGILEGDS1))
224-444	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	LAKE VILLA	LKVLILLKDS0	00/00/0000	Prefix Type: RBOC Switch Name: LAKE VILLA Switch Type: EWSD LATA: Chicago IL METRO (358) Tandem: NBRKILNT55T 🔧 Explore Switch(CLLI: LKVLILLKDS0))
224-444 is split into 1,000-number blocks - detail below
224-444-1XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	LAKE VILLA	LKVLILLKDS0	N/A	Prefix Type: RBOC Switch Name: LAKE VILLA Switch Type: EWSD LATA: Chicago IL METRO (358) Tandem: NBRKILNT55T 🔧 Explore Switch(CLLI: LKVLILLKDS0))
224-484 is split into 1,000-number blocks - detail below
224-484-2XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	DUNDEE	EDNDILDUDS0	05/08/2008	Prefix Type: RBOC Switch Name: DUNDEE Switch Type: EWSD LATA: Chicago IL METRO (358) Tandem: NCHCILNC20T 🔧 Explore Switch(CLLI: EDNDILDUDS0))
224-484-4XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	DUNDEE	EDNDILDUDS0	05/08/2008	Prefix Type: RBOC Switch Name: DUNDEE Switch Type: EWSD LATA: Chicago IL METRO (358) Tandem: NCHCILNC20T 🔧 Explore Switch(CLLI: EDNDILDUDS0))
224-484-5XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	DUNDEE	EDNDILDUDS0	05/08/2008	Prefix Type: RBOC Switch Name: DUNDEE Switch Type: EWSD LATA: Chicago IL METRO (358) Tandem: NCHCILNC20T 🔧 Explore Switch(CLLI: EDNDILDUDS0))
224-512	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	BARRINGTON	BNTOILAGDS0	01/17/2002	Prefix Type: RBOC Switch Name: BARRINGTON SOUTH Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: NCHCILNC20T 🔧 Explore Switch(CLLI: BNTOILAGDS0))
224-512 is split into 1,000-number blocks - detail below
224-512-1XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	BARRINGTON	BNTOILAGDS0	N/A	Prefix Type: RBOC Switch Name: BARRINGTON SOUTH Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: NCHCILNC20T 🔧 Explore Switch(CLLI: BNTOILAGDS0))
224-512-2XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	BARRINGTON	BNTOILAGDS0	N/A	Prefix Type: RBOC Switch Name: BARRINGTON SOUTH Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: NCHCILNC20T 🔧 Explore Switch(CLLI: BNTOILAGDS0))
224-512-3XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	BARRINGTON	BNTOILAGDS0	N/A	Prefix Type: RBOC Switch Name: BARRINGTON SOUTH Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: NCHCILNC20T 🔧 Explore Switch(CLLI: BNTOILAGDS0))
224-512-5XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	BARRINGTON	BNTOILAGDS0	N/A	Prefix Type: RBOC Switch Name: BARRINGTON SOUTH Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: NCHCILNC20T 🔧 Explore Switch(CLLI: BNTOILAGDS0))
224-512-6XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	BARRINGTON	BNTOILAGDS0	N/A	Prefix Type: RBOC Switch Name: BARRINGTON SOUTH Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: NCHCILNC20T 🔧 Explore Switch(CLLI: BNTOILAGDS0))
224-521	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	GLENVIEW	GLVWILGVDS0	07/29/2002	Prefix Type: RBOC Switch Name: GLENVIEW Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILNE20T 🔧 Explore Switch(CLLI: GLVWILGVDS0))
224-521 is split into 1,000-number blocks - detail below
224-521-4XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	GLENVIEW	GLVWILGVDS0	04/23/2003	Prefix Type: RBOC Switch Name: GLENVIEW Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILNE20T 🔧 Explore Switch(CLLI: GLVWILGVDS0))
224-521-8XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	GLENVIEW	GLVWILGVDS0	11/26/2002	Prefix Type: RBOC Switch Name: GLENVIEW Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILNE20T 🔧 Explore Switch(CLLI: GLVWILGVDS0))
224-541	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	GRAYSLAKE	GYLKILGLDS0	10/24/2011	Prefix Type: RBOC Switch Name: GRAYS LAKE Switch Type: EWSD LATA: Chicago IL METRO (358) Tandem: NBRKILNT55T 🔧 Explore Switch(CLLI: GYLKILGLDS0))
224-541 is split into 1,000-number blocks - detail below
224-541-1XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	GRAYSLAKE	GYLKILGLDS0	10/25/2011	Prefix Type: RBOC Switch Name: GRAYS LAKE Switch Type: EWSD LATA: Chicago IL METRO (358) Tandem: NBRKILNT55T 🔧 Explore Switch(CLLI: GYLKILGLDS0))
224-542	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	WHEELING	WLNGILWGDS0	05/13/2008	Prefix Type: RBOC Switch Name: WHEELING Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILNE20T 🔧 Explore Switch(CLLI: WLNGILWGDS0))
224-542 is split into 1,000-number blocks - detail below
224-542-2XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	WHEELING	WLNGILWGDS0	05/15/2008	Prefix Type: RBOC Switch Name: WHEELING Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILNE20T 🔧 Explore Switch(CLLI: WLNGILWGDS0))
224-542-3XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	WHEELING	WLNGILWGDS0	05/15/2008	Prefix Type: RBOC Switch Name: WHEELING Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILNE20T 🔧 Explore Switch(CLLI: WLNGILWGDS0))
224-542-4XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	WHEELING	WLNGILWGDS0	05/15/2008	Prefix Type: RBOC Switch Name: WHEELING Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILNE20T 🔧 Explore Switch(CLLI: WLNGILWGDS0))
224-542-5XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	WHEELING	WLNGILWGDS0	05/15/2008	Prefix Type: RBOC Switch Name: WHEELING Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILNE20T 🔧 Explore Switch(CLLI: WLNGILWGDS0))
224-542-6XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	WHEELING	WLNGILWGDS0	05/15/2008	Prefix Type: RBOC Switch Name: WHEELING Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILNE20T 🔧 Explore Switch(CLLI: WLNGILWGDS0))
224-542-7XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	WHEELING	WLNGILWGDS0	05/15/2008	Prefix Type: RBOC Switch Name: WHEELING Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILNE20T 🔧 Explore Switch(CLLI: WLNGILWGDS0))
224-544	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	LAKEFOREST	LKFRILLFDS0	03/28/2007	Prefix Type: RBOC Switch Name: LAKE FOREST Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILNE20T 🔧 Explore Switch(CLLI: LKFRILLFDS0))
224-544 is split into 1,000-number blocks - detail below
224-544-4XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	LAKEFOREST	LKFRILLFDS0	03/30/2007	Prefix Type: RBOC Switch Name: LAKE FOREST Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILNE20T 🔧 Explore Switch(CLLI: LKFRILLFDS0))
224-544-6XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	LAKEFOREST	LKFRILLFDS0	03/30/2007	Prefix Type: RBOC Switch Name: LAKE FOREST Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILNE20T 🔧 Explore Switch(CLLI: LKFRILLFDS0))
224-544-7XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	LAKEFOREST	LKFRILLFDS0	07/23/2007	Prefix Type: RBOC Switch Name: LAKE FOREST Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILNE20T 🔧 Explore Switch(CLLI: LKFRILLFDS0))
224-552	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	LAKEFOREST	LKFRILLFDS0	09/12/2006	Prefix Type: RBOC Switch Name: LAKE FOREST Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILNE20T 🔧 Explore Switch(CLLI: LKFRILLFDS0))
224-552 is split into 1,000-number blocks - detail below
224-552-2XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	LAKEFOREST	LKFRILLFDS0	07/23/2007	Prefix Type: RBOC Switch Name: LAKE FOREST Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILNE20T 🔧 Explore Switch(CLLI: LKFRILLFDS0))
224-552-3XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	LAKEFOREST	LKFRILLFDS0	07/23/2007	Prefix Type: RBOC Switch Name: LAKE FOREST Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILNE20T 🔧 Explore Switch(CLLI: LKFRILLFDS0))
224-552-4XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	LAKEFOREST	LKFRILLFDS0	07/23/2007	Prefix Type: RBOC Switch Name: LAKE FOREST Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILNE20T 🔧 Explore Switch(CLLI: LKFRILLFDS0))
224-552-6XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	LAKEFOREST	LKFRILLFDS0	07/23/2007	Prefix Type: RBOC Switch Name: LAKE FOREST Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILNE20T 🔧 Explore Switch(CLLI: LKFRILLFDS0))
224-552-7XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	LAKEFOREST	LKFRILLFDS0	07/23/2007	Prefix Type: RBOC Switch Name: LAKE FOREST Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILNE20T 🔧 Explore Switch(CLLI: LKFRILLFDS0))
224-552-8XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	LAKEFOREST	LKFRILLFDS0	09/12/2006	Prefix Type: RBOC Switch Name: LAKE FOREST Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILNE20T 🔧 Explore Switch(CLLI: LKFRILLFDS0))
224-552-9XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	LAKEFOREST	LKFRILLFDS0	09/12/2006	Prefix Type: RBOC Switch Name: LAKE FOREST Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILNE20T 🔧 Explore Switch(CLLI: LKFRILLFDS0))
224-569	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	HUNTLEY	HNTLILHODS0	02/20/2002	Prefix Type: RBOC Switch Name: HUNTLEY Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: NCHCILNC20T 🔧 Explore Switch(CLLI: HNTLILHODS0))
224-569 is split into 1,000-number blocks - detail below
224-569-2XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	HUNTLEY	HNTLILHODS0	N/A	Prefix Type: RBOC Switch Name: HUNTLEY Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: NCHCILNC20T 🔧 Explore Switch(CLLI: HNTLILHODS0))
224-569-3XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	HUNTLEY	HNTLILHODS0	N/A	Prefix Type: RBOC Switch Name: HUNTLEY Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: NCHCILNC20T 🔧 Explore Switch(CLLI: HNTLILHODS0))
224-569-4XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	HUNTLEY	HNTLILHODS0	N/A	Prefix Type: RBOC Switch Name: HUNTLEY Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: NCHCILNC20T 🔧 Explore Switch(CLLI: HNTLILHODS0))
224-569-6XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	HUNTLEY	HNTLILHODS0	N/A	Prefix Type: RBOC Switch Name: HUNTLEY Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: NCHCILNC20T 🔧 Explore Switch(CLLI: HNTLILHODS0))
224-572	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	WAUKEGAN	NCHCILNCDS0	08/21/2008	Prefix Type: RBOC Switch Name: NORTH CHICAGO DS0 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILNE20T 🔧 Explore Switch(CLLI: NCHCILNCDS0))
224-572 is split into 1,000-number blocks - detail below
224-572-6XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	WAUKEGAN	NCHCILNCDS0	08/22/2008	Prefix Type: RBOC Switch Name: NORTH CHICAGO DS0 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILNE20T 🔧 Explore Switch(CLLI: NCHCILNCDS0))
224-592	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	SKOKIE	SKOKILSKDS0	01/06/2009	Prefix Type: RBOC Switch Name: SKOKIE Switch Type: EWSD LATA: Chicago IL METRO (358) Tandem: CHCGILNE20T 🔧 Explore Switch(CLLI: SKOKILSKDS0))
224-592 is split into 1,000-number blocks - detail below
224-592-2XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	SKOKIE	SKOKILSKDS0	01/07/2009	Prefix Type: RBOC Switch Name: SKOKIE Switch Type: EWSD LATA: Chicago IL METRO (358) Tandem: CHCGILNE20T 🔧 Explore Switch(CLLI: SKOKILSKDS0))
224-592-3XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	SKOKIE	SKOKILSKDS0	01/07/2009	Prefix Type: RBOC Switch Name: SKOKIE Switch Type: EWSD LATA: Chicago IL METRO (358) Tandem: CHCGILNE20T 🔧 Explore Switch(CLLI: SKOKILSKDS0))
224-601	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	SKOKIE	CHCGILNEDS0	09/06/2012	Prefix Type: RBOC Switch Name: CHCG NEWCASTLE Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILNE50T 🔧 Explore Switch(CLLI: CHCGILNEDS0))
224-601 is split into 1,000-number blocks - detail below
224-601-2XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	SKOKIE	CHCGILNEDS0	09/07/2012	Prefix Type: RBOC Switch Name: CHCG NEWCASTLE Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILNE50T 🔧 Explore Switch(CLLI: CHCGILNEDS0))
224-610 is split into 1,000-number blocks - detail below
224-610-1XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	WAUKEGAN	NCHCILNCDS0	02/23/2005	Prefix Type: RBOC Switch Name: NORTH CHICAGO DS0 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILNE20T 🔧 Explore Switch(CLLI: NCHCILNCDS0))
224-610-2XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	WAUKEGAN	NCHCILNCDS0	02/23/2005	Prefix Type: RBOC Switch Name: NORTH CHICAGO DS0 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILNE20T 🔧 Explore Switch(CLLI: NCHCILNCDS0))
224-610-3XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	WAUKEGAN	NCHCILNCDS0	02/23/2005	Prefix Type: RBOC Switch Name: NORTH CHICAGO DS0 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILNE20T 🔧 Explore Switch(CLLI: NCHCILNCDS0))
224-610-4XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	WAUKEGAN	NCHCILNCDS0	02/23/2005	Prefix Type: RBOC Switch Name: NORTH CHICAGO DS0 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILNE20T 🔧 Explore Switch(CLLI: NCHCILNCDS0))
224-610-5XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	WAUKEGAN	NCHCILNCDS0	02/23/2005	Prefix Type: RBOC Switch Name: NORTH CHICAGO DS0 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILNE20T 🔧 Explore Switch(CLLI: NCHCILNCDS0))
224-610-7XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	WAUKEGAN	NCHCILNCDS0	02/23/2005	Prefix Type: RBOC Switch Name: NORTH CHICAGO DS0 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILNE20T 🔧 Explore Switch(CLLI: NCHCILNCDS0))
224-610-8XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	WAUKEGAN	NCHCILNCDS0	03/16/2005	Prefix Type: RBOC Switch Name: NORTH CHICAGO DS0 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILNE20T 🔧 Explore Switch(CLLI: NCHCILNCDS0))
224-625	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	ARLIGTNHTS	ARLHILAHDS1	02/25/2002	Prefix Type: RBOC Switch Name: ARLINGTON HEIGHTS DS1 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILNE20T 🔧 Explore Switch(CLLI: ARLHILAHDS1))
224-625 is split into 1,000-number blocks - detail below
224-625-1XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	ARLIGTNHTS	ARLHILAHDS1	N/A	Prefix Type: RBOC Switch Name: ARLINGTON HEIGHTS DS1 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILNE20T 🔧 Explore Switch(CLLI: ARLHILAHDS1))
224-625-2XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	ARLIGTNHTS	ARLHILAHDS1	N/A	Prefix Type: RBOC Switch Name: ARLINGTON HEIGHTS DS1 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILNE20T 🔧 Explore Switch(CLLI: ARLHILAHDS1))
224-625-3XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	ARLIGTNHTS	ARLHILAHDS1	N/A	Prefix Type: RBOC Switch Name: ARLINGTON HEIGHTS DS1 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILNE20T 🔧 Explore Switch(CLLI: ARLHILAHDS1))
224-625-4XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	ARLIGTNHTS	ARLHILAHDS1	N/A	Prefix Type: RBOC Switch Name: ARLINGTON HEIGHTS DS1 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILNE20T 🔧 Explore Switch(CLLI: ARLHILAHDS1))
224-625-5XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	ARLIGTNHTS	ARLHILAHDS1	N/A	Prefix Type: RBOC Switch Name: ARLINGTON HEIGHTS DS1 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILNE20T 🔧 Explore Switch(CLLI: ARLHILAHDS1))
224-625-6XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	ARLIGTNHTS	ARLHILAHDS1	N/A	Prefix Type: RBOC Switch Name: ARLINGTON HEIGHTS DS1 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILNE20T 🔧 Explore Switch(CLLI: ARLHILAHDS1))
224-625-7XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	ARLIGTNHTS	ARLHILAHDS1	N/A	Prefix Type: RBOC Switch Name: ARLINGTON HEIGHTS DS1 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILNE20T 🔧 Explore Switch(CLLI: ARLHILAHDS1))
224-625-8XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	ARLIGTNHTS	ARLHILAHDS1	N/A	Prefix Type: RBOC Switch Name: ARLINGTON HEIGHTS DS1 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILNE20T 🔧 Explore Switch(CLLI: ARLHILAHDS1))
224-625-9XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	ARLIGTNHTS	ARLHILAHDS1	N/A	Prefix Type: RBOC Switch Name: ARLINGTON HEIGHTS DS1 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILNE20T 🔧 Explore Switch(CLLI: ARLHILAHDS1))
224-632	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	DEERFIELD	DRFDILDFDS0	09/23/2002	Prefix Type: RBOC Switch Name: DEERFIELD Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILNE20T 🔧 Explore Switch(CLLI: DRFDILDFDS0))
224-632 is split into 1,000-number blocks - detail below
224-632-3XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	DEERFIELD	DRFDILDFDS0	10/01/2002	Prefix Type: RBOC Switch Name: DEERFIELD Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILNE20T 🔧 Explore Switch(CLLI: DRFDILDFDS0))
224-643	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	LAKE VILLA	LKVLILLKDS0	06/27/2002	Prefix Type: RBOC Switch Name: LAKE VILLA Switch Type: EWSD LATA: Chicago IL METRO (358) Tandem: NBRKILNT55T 🔧 Explore Switch(CLLI: LKVLILLKDS0))
224-643 is split into 1,000-number blocks - detail below
224-643-2XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	LAKE VILLA	LKVLILLKDS0	06/27/2002	Prefix Type: RBOC Switch Name: LAKE VILLA Switch Type: EWSD LATA: Chicago IL METRO (358) Tandem: NBRKILNT55T 🔧 Explore Switch(CLLI: LKVLILLKDS0))
224-653	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	ROSELLE	HFESILWLDS1	05/20/2002	Prefix Type: RBOC Switch Name: WILLOWCREST DS1 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: NCHCILNC20T 🔧 Explore Switch(CLLI: HFESILWLDS1))
224-653 is split into 1,000-number blocks - detail below
224-653-1XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	ROSELLE	HFESILWLDS1	N/A	Prefix Type: RBOC Switch Name: WILLOWCREST DS1 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: NCHCILNC20T 🔧 Explore Switch(CLLI: HFESILWLDS1))
224-653-2XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	ROSELLE	HFESILWLDS1	N/A	Prefix Type: RBOC Switch Name: WILLOWCREST DS1 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: NCHCILNC20T 🔧 Explore Switch(CLLI: HFESILWLDS1))
224-653-3XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	ROSELLE	HFESILWLDS1	N/A	Prefix Type: RBOC Switch Name: WILLOWCREST DS1 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: NCHCILNC20T 🔧 Explore Switch(CLLI: HFESILWLDS1))
224-653-4XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	ROSELLE	HFESILWLDS1	N/A	Prefix Type: RBOC Switch Name: WILLOWCREST DS1 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: NCHCILNC20T 🔧 Explore Switch(CLLI: HFESILWLDS1))
224-653-5XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	ROSELLE	HFESILWLDS1	N/A	Prefix Type: RBOC Switch Name: WILLOWCREST DS1 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: NCHCILNC20T 🔧 Explore Switch(CLLI: HFESILWLDS1))
224-653-6XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	ROSELLE	HFESILWLDS1	N/A	Prefix Type: RBOC Switch Name: WILLOWCREST DS1 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: NCHCILNC20T 🔧 Explore Switch(CLLI: HFESILWLDS1))
224-654	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	HUNTLEY	HNTLILHODS0	05/30/2006	Prefix Type: RBOC Switch Name: HUNTLEY Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: NCHCILNC20T 🔧 Explore Switch(CLLI: HNTLILHODS0))
224-654 is split into 1,000-number blocks - detail below
224-654-0XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	HUNTLEY	HNTLILHODS0	12/09/2015	Prefix Type: RBOC Switch Name: HUNTLEY Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: NCHCILNC20T 🔧 Explore Switch(CLLI: HNTLILHODS0))
224-654-2XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	HUNTLEY	HNTLILHODS0	05/31/2006	Prefix Type: RBOC Switch Name: HUNTLEY Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: NCHCILNC20T 🔧 Explore Switch(CLLI: HNTLILHODS0))
224-661 is split into 1,000-number blocks - detail below
224-661-7XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	GLENVIEW	GLVWILGVDS0	11/03/2014	Prefix Type: RBOC Switch Name: GLENVIEW Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILNE20T 🔧 Explore Switch(CLLI: GLVWILGVDS0))
224-661-8XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	GLENVIEW	GLVWILGVDS0	11/03/2014	Prefix Type: RBOC Switch Name: GLENVIEW Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILNE20T 🔧 Explore Switch(CLLI: GLVWILGVDS0))
224-661-9XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	GLENVIEW	GLVWILGVDS0	11/03/2014	Prefix Type: RBOC Switch Name: GLENVIEW Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILNE20T 🔧 Explore Switch(CLLI: GLVWILGVDS0))
224-665	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	WAUKEGAN	NCHCILNCDS0	05/08/2014	Prefix Type: RBOC Switch Name: NORTH CHICAGO DS0 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILNE20T 🔧 Explore Switch(CLLI: NCHCILNCDS0))
224-665 is split into 1,000-number blocks - detail below
224-665-0XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	WAUKEGAN	NCHCILNCDS0	05/09/2014	Prefix Type: RBOC Switch Name: NORTH CHICAGO DS0 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILNE20T 🔧 Explore Switch(CLLI: NCHCILNCDS0))
224-665-1XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	WAUKEGAN	NCHCILNCDS0	05/09/2014	Prefix Type: RBOC Switch Name: NORTH CHICAGO DS0 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILNE20T 🔧 Explore Switch(CLLI: NCHCILNCDS0))
224-665-2XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	WAUKEGAN	NCHCILNCDS0	05/09/2014	Prefix Type: RBOC Switch Name: NORTH CHICAGO DS0 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILNE20T 🔧 Explore Switch(CLLI: NCHCILNCDS0))
224-665-3XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	WAUKEGAN	NCHCILNCDS0	05/09/2014	Prefix Type: RBOC Switch Name: NORTH CHICAGO DS0 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILNE20T 🔧 Explore Switch(CLLI: NCHCILNCDS0))
224-665-4XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	WAUKEGAN	NCHCILNCDS0	05/09/2014	Prefix Type: RBOC Switch Name: NORTH CHICAGO DS0 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILNE20T 🔧 Explore Switch(CLLI: NCHCILNCDS0))
224-665-5XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	WAUKEGAN	NCHCILNCDS0	05/09/2014	Prefix Type: RBOC Switch Name: NORTH CHICAGO DS0 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILNE20T 🔧 Explore Switch(CLLI: NCHCILNCDS0))
224-665-6XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	WAUKEGAN	NCHCILNCDS0	05/09/2014	Prefix Type: RBOC Switch Name: NORTH CHICAGO DS0 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILNE20T 🔧 Explore Switch(CLLI: NCHCILNCDS0))
224-665-7XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	WAUKEGAN	NCHCILNCDS0	05/09/2014	Prefix Type: RBOC Switch Name: NORTH CHICAGO DS0 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILNE20T 🔧 Explore Switch(CLLI: NCHCILNCDS0))
224-665-8XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	WAUKEGAN	NCHCILNCDS0	05/09/2014	Prefix Type: RBOC Switch Name: NORTH CHICAGO DS0 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILNE20T 🔧 Explore Switch(CLLI: NCHCILNCDS0))
224-665-9XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	WAUKEGAN	NCHCILNCDS0	05/09/2014	Prefix Type: RBOC Switch Name: NORTH CHICAGO DS0 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILNE20T 🔧 Explore Switch(CLLI: NCHCILNCDS0))
224-667	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	WAUKEGAN	NCHCILNCDS0	12/31/2013	Prefix Type: RBOC Switch Name: NORTH CHICAGO DS0 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILNE20T 🔧 Explore Switch(CLLI: NCHCILNCDS0))
224-667 is split into 1,000-number blocks - detail below
224-667-0XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	WAUKEGAN	NCHCILNCDS0	01/02/2014	Prefix Type: RBOC Switch Name: NORTH CHICAGO DS0 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILNE20T 🔧 Explore Switch(CLLI: NCHCILNCDS0))
224-667-1XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	WAUKEGAN	NCHCILNCDS0	01/02/2014	Prefix Type: RBOC Switch Name: NORTH CHICAGO DS0 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILNE20T 🔧 Explore Switch(CLLI: NCHCILNCDS0))
224-667-2XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	WAUKEGAN	NCHCILNCDS0	01/02/2014	Prefix Type: RBOC Switch Name: NORTH CHICAGO DS0 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILNE20T 🔧 Explore Switch(CLLI: NCHCILNCDS0))
224-667-3XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	WAUKEGAN	NCHCILNCDS0	01/02/2014	Prefix Type: RBOC Switch Name: NORTH CHICAGO DS0 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILNE20T 🔧 Explore Switch(CLLI: NCHCILNCDS0))
224-667-4XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	WAUKEGAN	NCHCILNCDS0	01/02/2014	Prefix Type: RBOC Switch Name: NORTH CHICAGO DS0 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILNE20T 🔧 Explore Switch(CLLI: NCHCILNCDS0))
224-667-5XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	WAUKEGAN	NCHCILNCDS0	01/02/2014	Prefix Type: RBOC Switch Name: NORTH CHICAGO DS0 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILNE20T 🔧 Explore Switch(CLLI: NCHCILNCDS0))
224-667-6XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	WAUKEGAN	NCHCILNCDS0	01/02/2014	Prefix Type: RBOC Switch Name: NORTH CHICAGO DS0 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILNE20T 🔧 Explore Switch(CLLI: NCHCILNCDS0))
224-667-7XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	WAUKEGAN	NCHCILNCDS0	01/02/2014	Prefix Type: RBOC Switch Name: NORTH CHICAGO DS0 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILNE20T 🔧 Explore Switch(CLLI: NCHCILNCDS0))
224-667-8XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	WAUKEGAN	NCHCILNCDS0	01/02/2014	Prefix Type: RBOC Switch Name: NORTH CHICAGO DS0 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILNE20T 🔧 Explore Switch(CLLI: NCHCILNCDS0))
224-667-9XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	WAUKEGAN	NCHCILNCDS0	01/02/2014	Prefix Type: RBOC Switch Name: NORTH CHICAGO DS0 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILNE20T 🔧 Explore Switch(CLLI: NCHCILNCDS0))
224-668	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	WAUKEGAN	NCHCILNCDS0	12/31/2013	Prefix Type: RBOC Switch Name: NORTH CHICAGO DS0 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILNE20T 🔧 Explore Switch(CLLI: NCHCILNCDS0))
224-668 is split into 1,000-number blocks - detail below
224-668-0XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	WAUKEGAN	NCHCILNCDS0	01/02/2014	Prefix Type: RBOC Switch Name: NORTH CHICAGO DS0 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILNE20T 🔧 Explore Switch(CLLI: NCHCILNCDS0))
224-668-1XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	WAUKEGAN	NCHCILNCDS0	01/02/2014	Prefix Type: RBOC Switch Name: NORTH CHICAGO DS0 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILNE20T 🔧 Explore Switch(CLLI: NCHCILNCDS0))
224-668-2XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	WAUKEGAN	NCHCILNCDS0	01/02/2014	Prefix Type: RBOC Switch Name: NORTH CHICAGO DS0 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILNE20T 🔧 Explore Switch(CLLI: NCHCILNCDS0))
224-668-3XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	WAUKEGAN	NCHCILNCDS0	01/02/2014	Prefix Type: RBOC Switch Name: NORTH CHICAGO DS0 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILNE20T 🔧 Explore Switch(CLLI: NCHCILNCDS0))
224-668-4XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	WAUKEGAN	NCHCILNCDS0	01/02/2014	Prefix Type: RBOC Switch Name: NORTH CHICAGO DS0 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILNE20T 🔧 Explore Switch(CLLI: NCHCILNCDS0))
224-668-5XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	WAUKEGAN	NCHCILNCDS0	01/02/2014	Prefix Type: RBOC Switch Name: NORTH CHICAGO DS0 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILNE20T 🔧 Explore Switch(CLLI: NCHCILNCDS0))
224-668-6XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	WAUKEGAN	NCHCILNCDS0	01/02/2014	Prefix Type: RBOC Switch Name: NORTH CHICAGO DS0 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILNE20T 🔧 Explore Switch(CLLI: NCHCILNCDS0))
224-668-7XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	WAUKEGAN	NCHCILNCDS0	01/02/2014	Prefix Type: RBOC Switch Name: NORTH CHICAGO DS0 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILNE20T 🔧 Explore Switch(CLLI: NCHCILNCDS0))
224-668-8XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	WAUKEGAN	NCHCILNCDS0	01/02/2014	Prefix Type: RBOC Switch Name: NORTH CHICAGO DS0 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILNE20T 🔧 Explore Switch(CLLI: NCHCILNCDS0))
224-668-9XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	WAUKEGAN	NCHCILNCDS0	01/02/2014	Prefix Type: RBOC Switch Name: NORTH CHICAGO DS0 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILNE20T 🔧 Explore Switch(CLLI: NCHCILNCDS0))
224-698	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	ROSELLE	SCBGILCODS0	09/24/2002	Prefix Type: RBOC Switch Name: SCHAUMBURG Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILNE20T 🔧 Explore Switch(CLLI: SCBGILCODS0))
224-698 is split into 1,000-number blocks - detail below
224-698-3XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	ROSELLE	SCBGILCODS0	09/25/2002	Prefix Type: RBOC Switch Name: SCHAUMBURG Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILNE20T 🔧 Explore Switch(CLLI: SCBGILCODS0))
224-698-4XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	ROSELLE	SCBGILCODS0	09/25/2002	Prefix Type: RBOC Switch Name: SCHAUMBURG Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILNE20T 🔧 Explore Switch(CLLI: SCBGILCODS0))
224-698-5XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	ROSELLE	SCBGILCODS0	09/25/2002	Prefix Type: RBOC Switch Name: SCHAUMBURG Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILNE20T 🔧 Explore Switch(CLLI: SCBGILCODS0))
224-698-6XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	ROSELLE	SCBGILCODS0	09/25/2002	Prefix Type: RBOC Switch Name: SCHAUMBURG Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILNE20T 🔧 Explore Switch(CLLI: SCBGILCODS0))
224-698-8XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	ROSELLE	SCBGILCODS0	09/25/2002	Prefix Type: RBOC Switch Name: SCHAUMBURG Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILNE20T 🔧 Explore Switch(CLLI: SCBGILCODS0))
224-765	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	HIGHLANDPK	HGPKILHPDS0	00/00/0000	Prefix Type: RBOC Switch Name: HIGHLAND PARK Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILNE20T 🔧 Explore Switch(CLLI: HGPKILHPDS0))
224-765 is split into 1,000-number blocks - detail below
224-765-1XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	HIGHLANDPK	HGPKILHPDS0	09/04/2002	Prefix Type: RBOC Switch Name: HIGHLAND PARK Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILNE20T 🔧 Explore Switch(CLLI: HGPKILHPDS0))
224-765-2XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	HIGHLANDPK	HGPKILHPDS0	09/04/2002	Prefix Type: RBOC Switch Name: HIGHLAND PARK Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILNE20T 🔧 Explore Switch(CLLI: HGPKILHPDS0))
224-772	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	WAUKEGAN	NCHCILNCDS0	09/23/2002	Prefix Type: RBOC Switch Name: NORTH CHICAGO DS0 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILNE20T 🔧 Explore Switch(CLLI: NCHCILNCDS0))
224-772 is split into 1,000-number blocks - detail below
224-772-2XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	WAUKEGAN	NCHCILNCDS0	09/25/2002	Prefix Type: RBOC Switch Name: NORTH CHICAGO DS0 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILNE20T 🔧 Explore Switch(CLLI: NCHCILNCDS0))
224-783	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	ELGIN	ELGNILELDS0	04/28/2009	Prefix Type: RBOC Switch Name: ELGIN Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: NCHCILNC20T 🔧 Explore Switch(CLLI: ELGNILELDS0))
224-783 is split into 1,000-number blocks - detail below
224-783-1XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	ELGIN	ELGNILELDS0	04/29/2009	Prefix Type: RBOC Switch Name: ELGIN Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: NCHCILNC20T 🔧 Explore Switch(CLLI: ELGNILELDS0))
224-783-2XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	ELGIN	ELGNILELDS0	04/29/2009	Prefix Type: RBOC Switch Name: ELGIN Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: NCHCILNC20T 🔧 Explore Switch(CLLI: ELGNILELDS0))
224-783-3XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	ELGIN	ELGNILELDS0	04/29/2009	Prefix Type: RBOC Switch Name: ELGIN Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: NCHCILNC20T 🔧 Explore Switch(CLLI: ELGNILELDS0))
224-783-4XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	ELGIN	ELGNILELDS0	04/29/2009	Prefix Type: RBOC Switch Name: ELGIN Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: NCHCILNC20T 🔧 Explore Switch(CLLI: ELGNILELDS0))
224-783-5XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	ELGIN	ELGNILELDS0	04/29/2009	Prefix Type: RBOC Switch Name: ELGIN Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: NCHCILNC20T 🔧 Explore Switch(CLLI: ELGNILELDS0))
224-783-6XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	ELGIN	ELGNILELDS0	04/29/2009	Prefix Type: RBOC Switch Name: ELGIN Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: NCHCILNC20T 🔧 Explore Switch(CLLI: ELGNILELDS0))
224-783-7XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	ELGIN	ELGNILELDS0	04/29/2009	Prefix Type: RBOC Switch Name: ELGIN Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: NCHCILNC20T 🔧 Explore Switch(CLLI: ELGNILELDS0))
224-783-8XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	ELGIN	ELGNILELDS0	04/29/2009	Prefix Type: RBOC Switch Name: ELGIN Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: NCHCILNC20T 🔧 Explore Switch(CLLI: ELGNILELDS0))
224-783-9XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	ELGIN	ELGNILELDS0	04/29/2009	Prefix Type: RBOC Switch Name: ELGIN Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: NCHCILNC20T 🔧 Explore Switch(CLLI: ELGNILELDS0))
224-836	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	PALATINE	PALTILPADS0	02/26/2002	Prefix Type: RBOC Switch Name: PALATINE Switch Type: EWSD LATA: Chicago IL METRO (358) Tandem: NCHCILNC20T 🔧 Explore Switch(CLLI: PALTILPADS0))
224-836 is split into 1,000-number blocks - detail below
224-836-2XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	PALATINE	PALTILPADS0	N/A	Prefix Type: RBOC Switch Name: PALATINE Switch Type: EWSD LATA: Chicago IL METRO (358) Tandem: NCHCILNC20T 🔧 Explore Switch(CLLI: PALTILPADS0))
224-836-8XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	PALATINE	PALTILPADS0	N/A	Prefix Type: RBOC Switch Name: PALATINE Switch Type: EWSD LATA: Chicago IL METRO (358) Tandem: NCHCILNC20T 🔧 Explore Switch(CLLI: PALTILPADS0))
224-880	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	LAKEFOREST	LKFRILLFDS0	05/23/2011	Prefix Type: RBOC Switch Name: LAKE FOREST Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILNE20T 🔧 Explore Switch(CLLI: LKFRILLFDS0))
224-880 is split into 1,000-number blocks - detail below
224-880-2XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	LAKEFOREST	LKFRILLFDS0	05/27/2011	Prefix Type: RBOC Switch Name: LAKE FOREST Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILNE20T 🔧 Explore Switch(CLLI: LKFRILLFDS0))
224-880-3XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	LAKEFOREST	LKFRILLFDS0	05/27/2011	Prefix Type: RBOC Switch Name: LAKE FOREST Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILNE20T 🔧 Explore Switch(CLLI: LKFRILLFDS0))
224-880-4XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	LAKEFOREST	LKFRILLFDS0	05/27/2011	Prefix Type: RBOC Switch Name: LAKE FOREST Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILNE20T 🔧 Explore Switch(CLLI: LKFRILLFDS0))
224-931 is split into 1,000-number blocks - detail below
224-931-1XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	MUNDELEIN	LBVLILLIDS0	01/26/2016	Prefix Type: RBOC Switch Name: LIBERTYVILLE DS0 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILNE50T 🔧 Explore Switch(CLLI: LBVLILLIDS0))
224-931-5XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	MUNDELEIN	LBVLILLIDS0	01/26/2016	Prefix Type: RBOC Switch Name: LIBERTYVILLE DS0 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILNE50T 🔧 Explore Switch(CLLI: LBVLILLIDS0))
224-931-6XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	MUNDELEIN	LBVLILLIDS0	01/26/2016	Prefix Type: RBOC Switch Name: LIBERTYVILLE DS0 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILNE50T 🔧 Explore Switch(CLLI: LBVLILLIDS0))
224-931-7XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	MUNDELEIN	LBVLILLIDS0	01/26/2016	Prefix Type: RBOC Switch Name: LIBERTYVILLE DS0 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILNE50T 🔧 Explore Switch(CLLI: LBVLILLIDS0))
262-396	WI	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	NO ANTIOCH	ANTCILACDS0	00/00/0000	Prefix Type: RBOC Switch Name: ANTIOCH Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: NBRKILNT55T 🔧 Explore Switch(CLLI: ANTCILACDS0))
262-396 is split into 1,000-number blocks - detail below
262-396-4XXX	WI	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	NO ANTIOCH	ANTCILACDS0	N/A	Prefix Type: RBOC Switch Name: ANTIOCH Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: NBRKILNT55T 🔧 Explore Switch(CLLI: ANTCILACDS0))
262-396-9XXX	WI	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	NO ANTIOCH	ANTCILACDS0	N/A	Prefix Type: RBOC Switch Name: ANTIOCH Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: NBRKILNT55T 🔧 Explore Switch(CLLI: ANTCILACDS0))
309-206	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	ROCKISLAND	RCISILRIDS1	07/19/2011	Prefix Type: RBOC Switch Name: ROCK ISLAND DS1 Switch Type: DMS100 LATA: Davenport IA (634) Tandem: RCISILRI51T 🔧 Explore Switch(CLLI: RCISILRIDS1))
309-206 is split into 1,000-number blocks - detail below
309-206-1XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	ROCKISLAND	RCISILRIDS1	07/21/2011	Prefix Type: RBOC Switch Name: ROCK ISLAND DS1 Switch Type: DMS100 LATA: Davenport IA (634) Tandem: RCISILRI51T 🔧 Explore Switch(CLLI: RCISILRIDS1))
309-206-2XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	ROCKISLAND	RCISILRIDS1	07/21/2011	Prefix Type: RBOC Switch Name: ROCK ISLAND DS1 Switch Type: DMS100 LATA: Davenport IA (634) Tandem: RCISILRI51T 🔧 Explore Switch(CLLI: RCISILRIDS1))
309-244	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	DELAVAN	DLVNILDERS0	00/00/0000	Prefix Type: RBOC Switch Name: DELAVAN Switch Type: N/A LATA: Peoria IL (368) Tandem: PEORILPJ52T 🔧 Explore Switch(CLLI: DLVNILDERS0))
309-244 is split into 1,000-number blocks - detail below
309-244-0XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	DELAVAN	DLVNILDERS0	N/A	Prefix Type: RBOC Switch Name: DELAVAN Switch Type: N/A LATA: Peoria IL (368) Tandem: PEORILPJ52T 🔧 Explore Switch(CLLI: DLVNILDERS0))
309-244-7XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	DELAVAN	DLVNILDERS0	N/A	Prefix Type: RBOC Switch Name: DELAVAN Switch Type: N/A LATA: Peoria IL (368) Tandem: PEORILPJ52T 🔧 Explore Switch(CLLI: DLVNILDERS0))
309-244-8XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	DELAVAN	DLVNILDERS0	N/A	Prefix Type: RBOC Switch Name: DELAVAN Switch Type: N/A LATA: Peoria IL (368) Tandem: PEORILPJ52T 🔧 Explore Switch(CLLI: DLVNILDERS0))
309-245	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	FARMINGTON	FRTNILFMRS0	00/00/0000	Prefix Type: RBOC Switch Name: FARMINGTON Switch Type: N/A LATA: Peoria IL (368) Tandem: PEORILPJ52T 🔧 Explore Switch(CLLI: FRTNILFMRS0))
309-245 is split into 1,000-number blocks - detail below
309-245-2XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	FARMINGTON	FRTNILFMRS0	N/A	Prefix Type: RBOC Switch Name: FARMINGTON Switch Type: N/A LATA: Peoria IL (368) Tandem: PEORILPJ52T 🔧 Explore Switch(CLLI: FRTNILFMRS0))
309-245-4XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	FARMINGTON	FRTNILFMRS0	N/A	Prefix Type: RBOC Switch Name: FARMINGTON Switch Type: N/A LATA: Peoria IL (368) Tandem: PEORILPJ52T 🔧 Explore Switch(CLLI: FRTNILFMRS0))
309-245-9XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	FARMINGTON	FRTNILFMRS0	N/A	Prefix Type: RBOC Switch Name: FARMINGTON Switch Type: N/A LATA: Peoria IL (368) Tandem: PEORILPJ52T 🔧 Explore Switch(CLLI: FRTNILFMRS0))
309-247	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	SAN JOSE	SNJSILSSRS0	00/00/0000	Prefix Type: RBOC Switch Name: SAN JOSE Switch Type: N/A LATA: Peoria IL (368) Tandem: PEORILPJ52T 🔧 Explore Switch(CLLI: SNJSILSSRS0))
309-247 is split into 1,000-number blocks - detail below
309-247-3XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	SAN JOSE	SNJSILSSRS0	N/A	Prefix Type: RBOC Switch Name: SAN JOSE Switch Type: N/A LATA: Peoria IL (368) Tandem: PEORILPJ52T 🔧 Explore Switch(CLLI: SNJSILSSRS0))
309-281 is split into 1,000-number blocks - detail below
309-281-2XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	EASTMOLINE	GRRKILESDS0	03/22/2010	Prefix Type: RBOC Switch Name: GREEN ROCK Switch Type: DMS100 LATA: Davenport IA (634) Tandem: RCISILRI51T 🔧 Explore Switch(CLLI: GRRKILESDS0))
309-281-3XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	EASTMOLINE	GRRKILESDS0	03/22/2010	Prefix Type: RBOC Switch Name: GREEN ROCK Switch Type: DMS100 LATA: Davenport IA (634) Tandem: RCISILRI51T 🔧 Explore Switch(CLLI: GRRKILESDS0))
309-281-4XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	EASTMOLINE	GRRKILESDS0	03/22/2010	Prefix Type: RBOC Switch Name: GREEN ROCK Switch Type: DMS100 LATA: Davenport IA (634) Tandem: RCISILRI51T 🔧 Explore Switch(CLLI: GRRKILESDS0))
309-281-5XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	EASTMOLINE	GRRKILESDS0	03/22/2010	Prefix Type: RBOC Switch Name: GREEN ROCK Switch Type: DMS100 LATA: Davenport IA (634) Tandem: RCISILRI51T 🔧 Explore Switch(CLLI: GRRKILESDS0))
309-281-6XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	EASTMOLINE	GRRKILESDS0	03/22/2010	Prefix Type: RBOC Switch Name: GREEN ROCK Switch Type: DMS100 LATA: Davenport IA (634) Tandem: RCISILRI51T 🔧 Explore Switch(CLLI: GRRKILESDS0))
309-308 is split into 1,000-number blocks - detail below
309-308-0XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	PEORIA	PEORILPNDS0	11/20/2013	Prefix Type: RBOC Switch Name: PEORIA NORTH Switch Type: 5ESS LATA: Peoria IL (368) Tandem: PEORILPJ52T 🔧 Explore Switch(CLLI: PEORILPNDS0))
309-308-2XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	PEORIA	PEORILPNDS0	11/20/2013	Prefix Type: RBOC Switch Name: PEORIA NORTH Switch Type: 5ESS LATA: Peoria IL (368) Tandem: PEORILPJ52T 🔧 Explore Switch(CLLI: PEORILPNDS0))
309-308-3XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	PEORIA	PEORILPNDS0	11/20/2013	Prefix Type: RBOC Switch Name: PEORIA NORTH Switch Type: 5ESS LATA: Peoria IL (368) Tandem: PEORILPJ52T 🔧 Explore Switch(CLLI: PEORILPNDS0))
309-308-4XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	PEORIA	PEORILPNDS0	11/20/2013	Prefix Type: RBOC Switch Name: PEORIA NORTH Switch Type: 5ESS LATA: Peoria IL (368) Tandem: PEORILPJ52T 🔧 Explore Switch(CLLI: PEORILPNDS0))
309-308-5XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	PEORIA	PEORILPNDS0	11/20/2013	Prefix Type: RBOC Switch Name: PEORIA NORTH Switch Type: 5ESS LATA: Peoria IL (368) Tandem: PEORILPJ52T 🔧 Explore Switch(CLLI: PEORILPNDS0))
309-308-6XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	PEORIA	PEORILPNDS0	11/20/2013	Prefix Type: RBOC Switch Name: PEORIA NORTH Switch Type: 5ESS LATA: Peoria IL (368) Tandem: PEORILPJ52T 🔧 Explore Switch(CLLI: PEORILPNDS0))
309-308-7XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	PEORIA	PEORILPNDS0	11/20/2013	Prefix Type: RBOC Switch Name: PEORIA NORTH Switch Type: 5ESS LATA: Peoria IL (368) Tandem: PEORILPJ52T 🔧 Explore Switch(CLLI: PEORILPNDS0))
309-308-8XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	PEORIA	PEORILPNDS0	11/20/2013	Prefix Type: RBOC Switch Name: PEORIA NORTH Switch Type: 5ESS LATA: Peoria IL (368) Tandem: PEORILPJ52T 🔧 Explore Switch(CLLI: PEORILPNDS0))
309-308-9XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	PEORIA	PEORILPNDS0	11/20/2013	Prefix Type: RBOC Switch Name: PEORIA NORTH Switch Type: 5ESS LATA: Peoria IL (368) Tandem: PEORILPJ52T 🔧 Explore Switch(CLLI: PEORILPNDS0))
309-362	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	TRIVOLI	TRIVILTIRS0	00/00/0000	Prefix Type: RBOC Switch Name: TRIVOLI Switch Type: N/A LATA: Peoria IL (368) Tandem: PEORILPJ52T 🔧 Explore Switch(CLLI: TRIVILTIRS0))
309-362 is split into 1,000-number blocks - detail below
309-362-2XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	TRIVOLI	TRIVILTIRS0	N/A	Prefix Type: RBOC Switch Name: TRIVOLI Switch Type: N/A LATA: Peoria IL (368) Tandem: PEORILPJ52T 🔧 Explore Switch(CLLI: TRIVILTIRS0))
309-427	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	PEORIA	EPERILPEDS0	00/00/0000	Prefix Type: RBOC Switch Name: PEORIA EAST Switch Type: DMS100 LATA: Peoria IL (368) Tandem: PEORILPJ52T 🔧 Explore Switch(CLLI: EPERILPEDS0))
309-427 is split into 1,000-number blocks - detail below
309-427-1XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	PEORIA	EPERILPEDS0	N/A	Prefix Type: RBOC Switch Name: PEORIA EAST Switch Type: DMS100 LATA: Peoria IL (368) Tandem: PEORILPJ52T 🔧 Explore Switch(CLLI: EPERILPEDS0))
309-427-2XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	PEORIA	EPERILPEDS0	N/A	Prefix Type: RBOC Switch Name: PEORIA EAST Switch Type: DMS100 LATA: Peoria IL (368) Tandem: PEORILPJ52T 🔧 Explore Switch(CLLI: EPERILPEDS0))
309-427-3XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	PEORIA	EPERILPEDS0	N/A	Prefix Type: RBOC Switch Name: PEORIA EAST Switch Type: DMS100 LATA: Peoria IL (368) Tandem: PEORILPJ52T 🔧 Explore Switch(CLLI: EPERILPEDS0))
309-427-4XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	PEORIA	EPERILPEDS0	N/A	Prefix Type: RBOC Switch Name: PEORIA EAST Switch Type: DMS100 LATA: Peoria IL (368) Tandem: PEORILPJ52T 🔧 Explore Switch(CLLI: EPERILPEDS0))
309-427-5XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	PEORIA	EPERILPEDS0	N/A	Prefix Type: RBOC Switch Name: PEORIA EAST Switch Type: DMS100 LATA: Peoria IL (368) Tandem: PEORILPJ52T 🔧 Explore Switch(CLLI: EPERILPEDS0))
309-427-6XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	PEORIA	EPERILPEDS0	N/A	Prefix Type: RBOC Switch Name: PEORIA EAST Switch Type: DMS100 LATA: Peoria IL (368) Tandem: PEORILPJ52T 🔧 Explore Switch(CLLI: EPERILPEDS0))
309-427-7XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	PEORIA	EPERILPEDS0	N/A	Prefix Type: RBOC Switch Name: PEORIA EAST Switch Type: DMS100 LATA: Peoria IL (368) Tandem: PEORILPJ52T 🔧 Explore Switch(CLLI: EPERILPEDS0))
309-470	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	PEORIA	PEORILPJ52T	00/00/0000	Prefix Type: RBOC Switch Name: PEORIA Switch Type: WECO 5ESS (Digital) LATA: Peoria IL (368) Tandem: N/A 🔧 Explore Switch(CLLI: PEORILPJ52T))
309-494	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	PEORIA	PEORILPJDS1	00/00/0000	Prefix Type: RBOC Switch Name: PEORIA JEFFERSON DS1 Switch Type: DMS100 LATA: Peoria IL (368) Tandem: PEORILPJ52T 🔧 Explore Switch(CLLI: PEORILPJDS1))
309-495	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	PEORIA	PEORILPJDS1	00/00/0000	Prefix Type: RBOC Switch Name: PEORIA JEFFERSON DS1 Switch Type: DMS100 LATA: Peoria IL (368) Tandem: PEORILPJ52T 🔧 Explore Switch(CLLI: PEORILPJDS1))
309-497	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	PEORIA	PEORILPJDS1	00/00/0000	Prefix Type: RBOC Switch Name: PEORIA JEFFERSON DS1 Switch Type: DMS100 LATA: Peoria IL (368) Tandem: PEORILPJ52T 🔧 Explore Switch(CLLI: PEORILPJDS1))
309-524	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	MOLINE	MOLNILMLDS0	00/00/0000	Prefix Type: RBOC Switch Name: MOLINE DS0 Switch Type: DMS100 LATA: Davenport IA (634) Tandem: RCISILRI51T 🔧 Explore Switch(CLLI: MOLNILMLDS0))
309-524 is split into 1,000-number blocks - detail below
309-524-1XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	MOLINE	MOLNILMLDS0	11/14/2005	Prefix Type: RBOC Switch Name: MOLINE DS0 Switch Type: DMS100 LATA: Davenport IA (634) Tandem: RCISILRI51T 🔧 Explore Switch(CLLI: MOLNILMLDS0))
309-524-2XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	MOLINE	MOLNILMLDS0	09/02/2009	Prefix Type: RBOC Switch Name: MOLINE DS0 Switch Type: DMS100 LATA: Davenport IA (634) Tandem: RCISILRI51T 🔧 Explore Switch(CLLI: MOLNILMLDS0))
309-547	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	LEWISTOWN	LWTWILLTRS0	00/00/0000	Prefix Type: RBOC Switch Name: LEWISTOWN Switch Type: N/A LATA: Peoria IL (368) Tandem: PEORILPJ52T 🔧 Explore Switch(CLLI: LWTWILLTRS0))
309-547 is split into 1,000-number blocks - detail below
309-547-1XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	LEWISTOWN	LWTWILLTRS0	N/A	Prefix Type: RBOC Switch Name: LEWISTOWN Switch Type: N/A LATA: Peoria IL (368) Tandem: PEORILPJ52T 🔧 Explore Switch(CLLI: LWTWILLTRS0))
309-547-2XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	LEWISTOWN	LWTWILLTRS0	N/A	Prefix Type: RBOC Switch Name: LEWISTOWN Switch Type: N/A LATA: Peoria IL (368) Tandem: PEORILPJ52T 🔧 Explore Switch(CLLI: LWTWILLTRS0))
309-547-3XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	LEWISTOWN	LWTWILLTRS0	N/A	Prefix Type: RBOC Switch Name: LEWISTOWN Switch Type: N/A LATA: Peoria IL (368) Tandem: PEORILPJ52T 🔧 Explore Switch(CLLI: LWTWILLTRS0))
309-547-5XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	LEWISTOWN	LWTWILLTRS0	N/A	Prefix Type: RBOC Switch Name: LEWISTOWN Switch Type: N/A LATA: Peoria IL (368) Tandem: PEORILPJ52T 🔧 Explore Switch(CLLI: LWTWILLTRS0))
309-547-6XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	LEWISTOWN	LWTWILLTRS0	N/A	Prefix Type: RBOC Switch Name: LEWISTOWN Switch Type: N/A LATA: Peoria IL (368) Tandem: PEORILPJ52T 🔧 Explore Switch(CLLI: LWTWILLTRS0))
309-547-7XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	LEWISTOWN	LWTWILLTRS0	N/A	Prefix Type: RBOC Switch Name: LEWISTOWN Switch Type: N/A LATA: Peoria IL (368) Tandem: PEORILPJ52T 🔧 Explore Switch(CLLI: LWTWILLTRS0))
309-558	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	ROCKISLAND	RCISILRIDS1	00/00/0000	Prefix Type: RBOC Switch Name: ROCK ISLAND DS1 Switch Type: DMS100 LATA: Davenport IA (634) Tandem: RCISILRI51T 🔧 Explore Switch(CLLI: RCISILRIDS1))
309-558 is split into 1,000-number blocks - detail below
309-558-2XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	ROCKISLAND	RCISILRIDS1	N/A	Prefix Type: RBOC Switch Name: ROCK ISLAND DS1 Switch Type: DMS100 LATA: Davenport IA (634) Tandem: RCISILRI51T 🔧 Explore Switch(CLLI: RCISILRIDS1))
309-558-3XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	ROCKISLAND	RCISILRIDS1	N/A	Prefix Type: RBOC Switch Name: ROCK ISLAND DS1 Switch Type: DMS100 LATA: Davenport IA (634) Tandem: RCISILRI51T 🔧 Explore Switch(CLLI: RCISILRIDS1))
309-565	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	HANNA CITY	HNCYILHCRS0	00/00/0000	Prefix Type: RBOC Switch Name: HANNA CITY Switch Type: N/A LATA: Peoria IL (368) Tandem: PEORILPJ52T 🔧 Explore Switch(CLLI: HNCYILHCRS0))
309-565 is split into 1,000-number blocks - detail below
309-565-4XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	HANNA CITY	HNCYILHCRS0	N/A	Prefix Type: RBOC Switch Name: HANNA CITY Switch Type: N/A LATA: Peoria IL (368) Tandem: PEORILPJ52T 🔧 Explore Switch(CLLI: HNCYILHCRS0))
309-565-7XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	HANNA CITY	HNCYILHCRS0	N/A	Prefix Type: RBOC Switch Name: HANNA CITY Switch Type: N/A LATA: Peoria IL (368) Tandem: PEORILPJ52T 🔧 Explore Switch(CLLI: HNCYILHCRS0))
309-566	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	PEORIA	PEORILPBDS0	00/00/0000	Prefix Type: RBOC Switch Name: PEORIA BLUFFS Switch Type: DMS100 LATA: Peoria IL (368) Tandem: PEORILPJ52T 🔧 Explore Switch(CLLI: PEORILPBDS0))
309-566 is split into 1,000-number blocks - detail below
309-566-1XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	PEORIA	PEORILPBDS0	N/A	Prefix Type: RBOC Switch Name: PEORIA BLUFFS Switch Type: DMS100 LATA: Peoria IL (368) Tandem: PEORILPJ52T 🔧 Explore Switch(CLLI: PEORILPBDS0))
309-566-2XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	PEORIA	PEORILPBDS0	N/A	Prefix Type: RBOC Switch Name: PEORIA BLUFFS Switch Type: DMS100 LATA: Peoria IL (368) Tandem: PEORILPJ52T 🔧 Explore Switch(CLLI: PEORILPBDS0))
309-566-3XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	PEORIA	PEORILPBDS0	N/A	Prefix Type: RBOC Switch Name: PEORIA BLUFFS Switch Type: DMS100 LATA: Peoria IL (368) Tandem: PEORILPJ52T 🔧 Explore Switch(CLLI: PEORILPBDS0))
309-566-4XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	PEORIA	PEORILPBDS0	N/A	Prefix Type: RBOC Switch Name: PEORIA BLUFFS Switch Type: DMS100 LATA: Peoria IL (368) Tandem: PEORILPJ52T 🔧 Explore Switch(CLLI: PEORILPBDS0))
309-566-5XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	PEORIA	PEORILPBDS0	N/A	Prefix Type: RBOC Switch Name: PEORIA BLUFFS Switch Type: DMS100 LATA: Peoria IL (368) Tandem: PEORILPJ52T 🔧 Explore Switch(CLLI: PEORILPBDS0))
309-566-6XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	PEORIA	PEORILPBDS0	N/A	Prefix Type: RBOC Switch Name: PEORIA BLUFFS Switch Type: DMS100 LATA: Peoria IL (368) Tandem: PEORILPJ52T 🔧 Explore Switch(CLLI: PEORILPBDS0))
309-566-7XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	PEORIA	PEORILPBDS0	N/A	Prefix Type: RBOC Switch Name: PEORIA BLUFFS Switch Type: DMS100 LATA: Peoria IL (368) Tandem: PEORILPJ52T 🔧 Explore Switch(CLLI: PEORILPBDS0))
309-566-8XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	PEORIA	PEORILPBDS0	N/A	Prefix Type: RBOC Switch Name: PEORIA BLUFFS Switch Type: DMS100 LATA: Peoria IL (368) Tandem: PEORILPJ52T 🔧 Explore Switch(CLLI: PEORILPBDS0))
309-589	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	PEORIA	PEORILPNDS0	00/00/0000	Prefix Type: RBOC Switch Name: PEORIA NORTH Switch Type: 5ESS LATA: Peoria IL (368) Tandem: PEORILPJ52T 🔧 Explore Switch(CLLI: PEORILPNDS0))
309-624	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	PEORIA	PEORILPJDS1	00/00/0000	Prefix Type: RBOC Switch Name: PEORIA JEFFERSON DS1 Switch Type: DMS100 LATA: Peoria IL (368) Tandem: PEORILPJ52T 🔧 Explore Switch(CLLI: PEORILPJDS1))
309-633	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	PEORIA	BNVLILBNRS0	00/00/0000	Prefix Type: RBOC Switch Name: BARTONVILLE RS0 Switch Type: N/A LATA: Peoria IL (368) Tandem: PEORILPJ52T 🔧 Explore Switch(CLLI: BNVLILBNRS0))
309-633 is split into 1,000-number blocks - detail below
309-633-0XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	PEORIA	BNVLILBNRS0	N/A	Prefix Type: RBOC Switch Name: BARTONVILLE RS0 Switch Type: N/A LATA: Peoria IL (368) Tandem: PEORILPJ52T 🔧 Explore Switch(CLLI: BNVLILBNRS0))
309-633-1XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	PEORIA	BNVLILBNRS0	N/A	Prefix Type: RBOC Switch Name: BARTONVILLE RS0 Switch Type: N/A LATA: Peoria IL (368) Tandem: PEORILPJ52T 🔧 Explore Switch(CLLI: BNVLILBNRS0))
309-633-2XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	PEORIA	BNVLILBNRS0	N/A	Prefix Type: RBOC Switch Name: BARTONVILLE RS0 Switch Type: N/A LATA: Peoria IL (368) Tandem: PEORILPJ52T 🔧 Explore Switch(CLLI: BNVLILBNRS0))
309-633-3XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	PEORIA	BNVLILBNRS0	N/A	Prefix Type: RBOC Switch Name: BARTONVILLE RS0 Switch Type: N/A LATA: Peoria IL (368) Tandem: PEORILPJ52T 🔧 Explore Switch(CLLI: BNVLILBNRS0))
309-633-4XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	PEORIA	BNVLILBNRS0	N/A	Prefix Type: RBOC Switch Name: BARTONVILLE RS0 Switch Type: N/A LATA: Peoria IL (368) Tandem: PEORILPJ52T 🔧 Explore Switch(CLLI: BNVLILBNRS0))
309-633-5XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	PEORIA	BNVLILBNRS0	N/A	Prefix Type: RBOC Switch Name: BARTONVILLE RS0 Switch Type: N/A LATA: Peoria IL (368) Tandem: PEORILPJ52T 🔧 Explore Switch(CLLI: BNVLILBNRS0))
309-633-6XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	PEORIA	BNVLILBNRS0	N/A	Prefix Type: RBOC Switch Name: BARTONVILLE RS0 Switch Type: N/A LATA: Peoria IL (368) Tandem: PEORILPJ52T 🔧 Explore Switch(CLLI: BNVLILBNRS0))
309-633-7XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	PEORIA	BNVLILBNRS0	N/A	Prefix Type: RBOC Switch Name: BARTONVILLE RS0 Switch Type: N/A LATA: Peoria IL (368) Tandem: PEORILPJ52T 🔧 Explore Switch(CLLI: BNVLILBNRS0))
309-633-8XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	PEORIA	BNVLILBNRS0	N/A	Prefix Type: RBOC Switch Name: BARTONVILLE RS0 Switch Type: N/A LATA: Peoria IL (368) Tandem: PEORILPJ52T 🔧 Explore Switch(CLLI: BNVLILBNRS0))
309-634	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	PEORIA	BNVLILBNRS0	00/00/0000	Prefix Type: RBOC Switch Name: BARTONVILLE RS0 Switch Type: N/A LATA: Peoria IL (368) Tandem: PEORILPJ52T 🔧 Explore Switch(CLLI: BNVLILBNRS0))
309-634 is split into 1,000-number blocks - detail below
309-634-0XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	PEORIA	BNVLILBNRS0	N/A	Prefix Type: RBOC Switch Name: BARTONVILLE RS0 Switch Type: N/A LATA: Peoria IL (368) Tandem: PEORILPJ52T 🔧 Explore Switch(CLLI: BNVLILBNRS0))
309-634-2XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	PEORIA	BNVLILBNRS0	N/A	Prefix Type: RBOC Switch Name: BARTONVILLE RS0 Switch Type: N/A LATA: Peoria IL (368) Tandem: PEORILPJ52T 🔧 Explore Switch(CLLI: BNVLILBNRS0))
309-634-3XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	PEORIA	BNVLILBNRS0	N/A	Prefix Type: RBOC Switch Name: BARTONVILLE RS0 Switch Type: N/A LATA: Peoria IL (368) Tandem: PEORILPJ52T 🔧 Explore Switch(CLLI: BNVLILBNRS0))
309-634-4XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	PEORIA	BNVLILBNRS0	N/A	Prefix Type: RBOC Switch Name: BARTONVILLE RS0 Switch Type: N/A LATA: Peoria IL (368) Tandem: PEORILPJ52T 🔧 Explore Switch(CLLI: BNVLILBNRS0))
309-634-7XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	PEORIA	BNVLILBNRS0	N/A	Prefix Type: RBOC Switch Name: BARTONVILLE RS0 Switch Type: N/A LATA: Peoria IL (368) Tandem: PEORILPJ52T 🔧 Explore Switch(CLLI: BNVLILBNRS0))
309-636	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	PEORIA	PEORILPJDS1	00/00/0000	Prefix Type: RBOC Switch Name: PEORIA JEFFERSON DS1 Switch Type: DMS100 LATA: Peoria IL (368) Tandem: PEORILPJ52T 🔧 Explore Switch(CLLI: PEORILPJDS1))
309-637	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	PEORIA	PEORILPJDS1	00/00/0000	Prefix Type: RBOC Switch Name: PEORIA JEFFERSON DS1 Switch Type: DMS100 LATA: Peoria IL (368) Tandem: PEORILPJ52T 🔧 Explore Switch(CLLI: PEORILPJDS1))
309-637 is split into 1,000-number blocks - detail below
309-637-0XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	PEORIA	PEORILPJDS1	N/A	Prefix Type: RBOC Switch Name: PEORIA JEFFERSON DS1 Switch Type: DMS100 LATA: Peoria IL (368) Tandem: PEORILPJ52T 🔧 Explore Switch(CLLI: PEORILPJDS1))
309-637-1XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	PEORIA	PEORILPJDS1	N/A	Prefix Type: RBOC Switch Name: PEORIA JEFFERSON DS1 Switch Type: DMS100 LATA: Peoria IL (368) Tandem: PEORILPJ52T 🔧 Explore Switch(CLLI: PEORILPJDS1))
309-637-2XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	PEORIA	PEORILPJDS1	N/A	Prefix Type: RBOC Switch Name: PEORIA JEFFERSON DS1 Switch Type: DMS100 LATA: Peoria IL (368) Tandem: PEORILPJ52T 🔧 Explore Switch(CLLI: PEORILPJDS1))
309-637-3XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	PEORIA	PEORILPJDS1	N/A	Prefix Type: RBOC Switch Name: PEORIA JEFFERSON DS1 Switch Type: DMS100 LATA: Peoria IL (368) Tandem: PEORILPJ52T 🔧 Explore Switch(CLLI: PEORILPJDS1))
309-637-4XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	PEORIA	PEORILPJDS1	N/A	Prefix Type: RBOC Switch Name: PEORIA JEFFERSON DS1 Switch Type: DMS100 LATA: Peoria IL (368) Tandem: PEORILPJ52T 🔧 Explore Switch(CLLI: PEORILPJDS1))
309-637-5XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	PEORIA	PEORILPJDS1	N/A	Prefix Type: RBOC Switch Name: PEORIA JEFFERSON DS1 Switch Type: DMS100 LATA: Peoria IL (368) Tandem: PEORILPJ52T 🔧 Explore Switch(CLLI: PEORILPJDS1))
309-637-6XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	PEORIA	PEORILPJDS1	N/A	Prefix Type: RBOC Switch Name: PEORIA JEFFERSON DS1 Switch Type: DMS100 LATA: Peoria IL (368) Tandem: PEORILPJ52T 🔧 Explore Switch(CLLI: PEORILPJDS1))
309-637-7XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	PEORIA	PEORILPJDS1	N/A	Prefix Type: RBOC Switch Name: PEORIA JEFFERSON DS1 Switch Type: DMS100 LATA: Peoria IL (368) Tandem: PEORILPJ52T 🔧 Explore Switch(CLLI: PEORILPJDS1))
309-637-8XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	PEORIA	PEORILPJDS1	N/A	Prefix Type: RBOC Switch Name: PEORIA JEFFERSON DS1 Switch Type: DMS100 LATA: Peoria IL (368) Tandem: PEORILPJ52T 🔧 Explore Switch(CLLI: PEORILPJDS1))
309-644 is split into 1,000-number blocks - detail below
309-644-5XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	ROCKISLAND	RCISILRIDS1	07/27/2010	Prefix Type: RBOC Switch Name: ROCK ISLAND DS1 Switch Type: DMS100 LATA: Davenport IA (634) Tandem: RCISILRI51T 🔧 Explore Switch(CLLI: RCISILRIDS1))
309-644-6XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	ROCKISLAND	RCISILRIDS1	07/27/2010	Prefix Type: RBOC Switch Name: ROCK ISLAND DS1 Switch Type: DMS100 LATA: Davenport IA (634) Tandem: RCISILRI51T 🔧 Explore Switch(CLLI: RCISILRIDS1))
309-644-7XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	ROCKISLAND	RCISILRIDS1	07/27/2010	Prefix Type: RBOC Switch Name: ROCK ISLAND DS1 Switch Type: DMS100 LATA: Davenport IA (634) Tandem: RCISILRI51T 🔧 Explore Switch(CLLI: RCISILRIDS1))
309-644-8XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	ROCKISLAND	RCISILRIDS1	07/27/2010	Prefix Type: RBOC Switch Name: ROCK ISLAND DS1 Switch Type: DMS100 LATA: Davenport IA (634) Tandem: RCISILRI51T 🔧 Explore Switch(CLLI: RCISILRIDS1))
309-647	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CANTON	CNTNILCNDS0	00/00/0000	Prefix Type: RBOC Switch Name: CANTON Switch Type: 5ESS LATA: Peoria IL (368) Tandem: PEORILPJ52T 🔧 Explore Switch(CLLI: CNTNILCNDS0))
309-649	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CANTON	CNTNILCNDS0	00/00/0000	Prefix Type: RBOC Switch Name: CANTON Switch Type: 5ESS LATA: Peoria IL (368) Tandem: PEORILPJ52T 🔧 Explore Switch(CLLI: CNTNILCNDS0))
309-649 is split into 1,000-number blocks - detail below
309-649-1XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CANTON	CNTNILCNDS0	N/A	Prefix Type: RBOC Switch Name: CANTON Switch Type: 5ESS LATA: Peoria IL (368) Tandem: PEORILPJ52T 🔧 Explore Switch(CLLI: CNTNILCNDS0))
309-649-3XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CANTON	CNTNILCNDS0	N/A	Prefix Type: RBOC Switch Name: CANTON Switch Type: 5ESS LATA: Peoria IL (368) Tandem: PEORILPJ52T 🔧 Explore Switch(CLLI: CNTNILCNDS0))
309-649-5XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CANTON	CNTNILCNDS0	N/A	Prefix Type: RBOC Switch Name: CANTON Switch Type: 5ESS LATA: Peoria IL (368) Tandem: PEORILPJ52T 🔧 Explore Switch(CLLI: CNTNILCNDS0))
309-649-6XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CANTON	CNTNILCNDS0	N/A	Prefix Type: RBOC Switch Name: CANTON Switch Type: 5ESS LATA: Peoria IL (368) Tandem: PEORILPJ52T 🔧 Explore Switch(CLLI: CNTNILCNDS0))
309-649-8XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CANTON	CNTNILCNDS0	N/A	Prefix Type: RBOC Switch Name: CANTON Switch Type: 5ESS LATA: Peoria IL (368) Tandem: PEORILPJ52T 🔧 Explore Switch(CLLI: CNTNILCNDS0))
309-655	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	PEORIA	PEORILPJDS1	00/00/0000	Prefix Type: RBOC Switch Name: PEORIA JEFFERSON DS1 Switch Type: DMS100 LATA: Peoria IL (368) Tandem: PEORILPJ52T 🔧 Explore Switch(CLLI: PEORILPJDS1))
309-668	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CANTON	STDVILCSRS0	00/00/0000	Prefix Type: RBOC Switch Name: ST DAVID Switch Type: N/A LATA: Peoria IL (368) Tandem: PEORILPJ52T 🔧 Explore Switch(CLLI: STDVILCSRS0))
309-668 is split into 1,000-number blocks - detail below
309-668-2XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CANTON	STDVILCSRS0	N/A	Prefix Type: RBOC Switch Name: ST DAVID Switch Type: N/A LATA: Peoria IL (368) Tandem: PEORILPJ52T 🔧 Explore Switch(CLLI: STDVILCSRS0))
309-668-3XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CANTON	STDVILCSRS0	N/A	Prefix Type: RBOC Switch Name: ST DAVID Switch Type: N/A LATA: Peoria IL (368) Tandem: PEORILPJ52T 🔧 Explore Switch(CLLI: STDVILCSRS0))
309-669	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	PEORIA	PEORILPJDS1	00/00/0000	Prefix Type: RBOC Switch Name: PEORIA JEFFERSON DS1 Switch Type: DMS100 LATA: Peoria IL (368) Tandem: PEORILPJ52T 🔧 Explore Switch(CLLI: PEORILPJDS1))
309-669 is split into 1,000-number blocks - detail below
309-669-0XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	PEORIA	PEORILPJDS1	N/A	Prefix Type: RBOC Switch Name: PEORIA JEFFERSON DS1 Switch Type: DMS100 LATA: Peoria IL (368) Tandem: PEORILPJ52T 🔧 Explore Switch(CLLI: PEORILPJDS1))
309-669-1XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	PEORIA	PEORILPJDS1	N/A	Prefix Type: RBOC Switch Name: PEORIA JEFFERSON DS1 Switch Type: DMS100 LATA: Peoria IL (368) Tandem: PEORILPJ52T 🔧 Explore Switch(CLLI: PEORILPJDS1))
309-669-2XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	PEORIA	PEORILPJDS1	N/A	Prefix Type: RBOC Switch Name: PEORIA JEFFERSON DS1 Switch Type: DMS100 LATA: Peoria IL (368) Tandem: PEORILPJ52T 🔧 Explore Switch(CLLI: PEORILPJDS1))
309-669-3XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	PEORIA	PEORILPJDS1	N/A	Prefix Type: RBOC Switch Name: PEORIA JEFFERSON DS1 Switch Type: DMS100 LATA: Peoria IL (368) Tandem: PEORILPJ52T 🔧 Explore Switch(CLLI: PEORILPJDS1))
309-669-4XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	PEORIA	PEORILPJDS1	N/A	Prefix Type: RBOC Switch Name: PEORIA JEFFERSON DS1 Switch Type: DMS100 LATA: Peoria IL (368) Tandem: PEORILPJ52T 🔧 Explore Switch(CLLI: PEORILPJDS1))
309-669-5XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	PEORIA	PEORILPJDS1	N/A	Prefix Type: RBOC Switch Name: PEORIA JEFFERSON DS1 Switch Type: DMS100 LATA: Peoria IL (368) Tandem: PEORILPJ52T 🔧 Explore Switch(CLLI: PEORILPJDS1))
309-671	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	PEORIA	PEORILPJDS1	00/00/0000	Prefix Type: RBOC Switch Name: PEORIA JEFFERSON DS1 Switch Type: DMS100 LATA: Peoria IL (368) Tandem: PEORILPJ52T 🔧 Explore Switch(CLLI: PEORILPJDS1))
309-672	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	PEORIA	PEORILPJDS1	00/00/0000	Prefix Type: RBOC Switch Name: PEORIA JEFFERSON DS1 Switch Type: DMS100 LATA: Peoria IL (368) Tandem: PEORILPJ52T 🔧 Explore Switch(CLLI: PEORILPJDS1))
309-673	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	PEORIA	PEORILPJDS1	00/00/0000	Prefix Type: RBOC Switch Name: PEORIA JEFFERSON DS1 Switch Type: DMS100 LATA: Peoria IL (368) Tandem: PEORILPJ52T 🔧 Explore Switch(CLLI: PEORILPJDS1))
309-674	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	PEORIA	PEORILPJDS1	00/00/0000	Prefix Type: RBOC Switch Name: PEORIA JEFFERSON DS1 Switch Type: DMS100 LATA: Peoria IL (368) Tandem: PEORILPJ52T 🔧 Explore Switch(CLLI: PEORILPJDS1))
309-675	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	PEORIA	PEORILPJDS1	00/00/0000	Prefix Type: RBOC Switch Name: PEORIA JEFFERSON DS1 Switch Type: DMS100 LATA: Peoria IL (368) Tandem: PEORILPJ52T 🔧 Explore Switch(CLLI: PEORILPJDS1))
309-676	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	PEORIA	PEORILPJDS1	00/00/0000	Prefix Type: RBOC Switch Name: PEORIA JEFFERSON DS1 Switch Type: DMS100 LATA: Peoria IL (368) Tandem: PEORILPJ52T 🔧 Explore Switch(CLLI: PEORILPJDS1))
309-676 is split into 1,000-number blocks - detail below
309-676-0XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	PEORIA	PEORILPJDS1	N/A	Prefix Type: RBOC Switch Name: PEORIA JEFFERSON DS1 Switch Type: DMS100 LATA: Peoria IL (368) Tandem: PEORILPJ52T 🔧 Explore Switch(CLLI: PEORILPJDS1))
309-676-1XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	PEORIA	PEORILPJDS1	N/A	Prefix Type: RBOC Switch Name: PEORIA JEFFERSON DS1 Switch Type: DMS100 LATA: Peoria IL (368) Tandem: PEORILPJ52T 🔧 Explore Switch(CLLI: PEORILPJDS1))
309-676-2XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	PEORIA	PEORILPJDS1	N/A	Prefix Type: RBOC Switch Name: PEORIA JEFFERSON DS1 Switch Type: DMS100 LATA: Peoria IL (368) Tandem: PEORILPJ52T 🔧 Explore Switch(CLLI: PEORILPJDS1))
309-676-3XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	PEORIA	PEORILPJDS1	N/A	Prefix Type: RBOC Switch Name: PEORIA JEFFERSON DS1 Switch Type: DMS100 LATA: Peoria IL (368) Tandem: PEORILPJ52T 🔧 Explore Switch(CLLI: PEORILPJDS1))
309-676-4XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	PEORIA	PEORILPJDS1	N/A	Prefix Type: RBOC Switch Name: PEORIA JEFFERSON DS1 Switch Type: DMS100 LATA: Peoria IL (368) Tandem: PEORILPJ52T 🔧 Explore Switch(CLLI: PEORILPJDS1))
309-676-5XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	PEORIA	PEORILPJDS1	N/A	Prefix Type: RBOC Switch Name: PEORIA JEFFERSON DS1 Switch Type: DMS100 LATA: Peoria IL (368) Tandem: PEORILPJ52T 🔧 Explore Switch(CLLI: PEORILPJDS1))
309-676-6XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	PEORIA	PEORILPJDS1	N/A	Prefix Type: RBOC Switch Name: PEORIA JEFFERSON DS1 Switch Type: DMS100 LATA: Peoria IL (368) Tandem: PEORILPJ52T 🔧 Explore Switch(CLLI: PEORILPJDS1))
309-676-7XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	PEORIA	PEORILPJDS1	N/A	Prefix Type: RBOC Switch Name: PEORIA JEFFERSON DS1 Switch Type: DMS100 LATA: Peoria IL (368) Tandem: PEORILPJ52T 🔧 Explore Switch(CLLI: PEORILPJDS1))
309-676-8XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	PEORIA	PEORILPJDS1	N/A	Prefix Type: RBOC Switch Name: PEORIA JEFFERSON DS1 Switch Type: DMS100 LATA: Peoria IL (368) Tandem: PEORILPJ52T 🔧 Explore Switch(CLLI: PEORILPJDS1))
309-677	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	PEORIA	PEORILPJDS1	00/00/0000	Prefix Type: RBOC Switch Name: PEORIA JEFFERSON DS1 Switch Type: DMS100 LATA: Peoria IL (368) Tandem: PEORILPJ52T 🔧 Explore Switch(CLLI: PEORILPJDS1))
309-679	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	PEORIA	PEORILPBDS0	00/00/0000	Prefix Type: RBOC Switch Name: PEORIA BLUFFS Switch Type: DMS100 LATA: Peoria IL (368) Tandem: PEORILPJ52T 🔧 Explore Switch(CLLI: PEORILPBDS0))
309-679 is split into 1,000-number blocks - detail below
309-679-0XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	PEORIA	PEORILPBDS0	N/A	Prefix Type: RBOC Switch Name: PEORIA BLUFFS Switch Type: DMS100 LATA: Peoria IL (368) Tandem: PEORILPJ52T 🔧 Explore Switch(CLLI: PEORILPBDS0))
309-679-1XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	PEORIA	PEORILPBDS0	N/A	Prefix Type: RBOC Switch Name: PEORIA BLUFFS Switch Type: DMS100 LATA: Peoria IL (368) Tandem: PEORILPJ52T 🔧 Explore Switch(CLLI: PEORILPBDS0))
309-679-2XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	PEORIA	PEORILPBDS0	N/A	Prefix Type: RBOC Switch Name: PEORIA BLUFFS Switch Type: DMS100 LATA: Peoria IL (368) Tandem: PEORILPJ52T 🔧 Explore Switch(CLLI: PEORILPBDS0))
309-679-3XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	PEORIA	PEORILPBDS0	N/A	Prefix Type: RBOC Switch Name: PEORIA BLUFFS Switch Type: DMS100 LATA: Peoria IL (368) Tandem: PEORILPJ52T 🔧 Explore Switch(CLLI: PEORILPBDS0))
309-679-4XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	PEORIA	PEORILPBDS0	N/A	Prefix Type: RBOC Switch Name: PEORIA BLUFFS Switch Type: DMS100 LATA: Peoria IL (368) Tandem: PEORILPJ52T 🔧 Explore Switch(CLLI: PEORILPBDS0))
309-679-5XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	PEORIA	PEORILPBDS0	N/A	Prefix Type: RBOC Switch Name: PEORIA BLUFFS Switch Type: DMS100 LATA: Peoria IL (368) Tandem: PEORILPJ52T 🔧 Explore Switch(CLLI: PEORILPBDS0))
309-679-6XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	PEORIA	PEORILPBDS0	N/A	Prefix Type: RBOC Switch Name: PEORIA BLUFFS Switch Type: DMS100 LATA: Peoria IL (368) Tandem: PEORILPJ52T 🔧 Explore Switch(CLLI: PEORILPBDS0))
309-679-8XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	PEORIA	PEORILPBDS0	N/A	Prefix Type: RBOC Switch Name: PEORIA BLUFFS Switch Type: DMS100 LATA: Peoria IL (368) Tandem: PEORILPJ52T 🔧 Explore Switch(CLLI: PEORILPBDS0))
309-679-9XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	PEORIA	PEORILPBDS0	N/A	Prefix Type: RBOC Switch Name: PEORIA BLUFFS Switch Type: DMS100 LATA: Peoria IL (368) Tandem: PEORILPJ52T 🔧 Explore Switch(CLLI: PEORILPBDS0))
309-680	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	PEORIA	PEORILPJDS1	00/00/0000	Prefix Type: RBOC Switch Name: PEORIA JEFFERSON DS1 Switch Type: DMS100 LATA: Peoria IL (368) Tandem: PEORILPJ52T 🔧 Explore Switch(CLLI: PEORILPJDS1))
309-680 is split into 1,000-number blocks - detail below
309-680-0XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	PEORIA	PEORILPJDS1	N/A	Prefix Type: RBOC Switch Name: PEORIA JEFFERSON DS1 Switch Type: DMS100 LATA: Peoria IL (368) Tandem: PEORILPJ52T 🔧 Explore Switch(CLLI: PEORILPJDS1))
309-680-1XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	PEORIA	PEORILPJDS1	N/A	Prefix Type: RBOC Switch Name: PEORIA JEFFERSON DS1 Switch Type: DMS100 LATA: Peoria IL (368) Tandem: PEORILPJ52T 🔧 Explore Switch(CLLI: PEORILPJDS1))
309-680-2XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	PEORIA	PEORILPJDS1	N/A	Prefix Type: RBOC Switch Name: PEORIA JEFFERSON DS1 Switch Type: DMS100 LATA: Peoria IL (368) Tandem: PEORILPJ52T 🔧 Explore Switch(CLLI: PEORILPJDS1))
309-680-3XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	PEORIA	PEORILPJDS1	N/A	Prefix Type: RBOC Switch Name: PEORIA JEFFERSON DS1 Switch Type: DMS100 LATA: Peoria IL (368) Tandem: PEORILPJ52T 🔧 Explore Switch(CLLI: PEORILPJDS1))
309-680-4XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	PEORIA	PEORILPJDS1	N/A	Prefix Type: RBOC Switch Name: PEORIA JEFFERSON DS1 Switch Type: DMS100 LATA: Peoria IL (368) Tandem: PEORILPJ52T 🔧 Explore Switch(CLLI: PEORILPJDS1))
309-680-7XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	PEORIA	PEORILPJDS1	N/A	Prefix Type: RBOC Switch Name: PEORIA JEFFERSON DS1 Switch Type: DMS100 LATA: Peoria IL (368) Tandem: PEORILPJ52T 🔧 Explore Switch(CLLI: PEORILPJDS1))
309-680-8XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	PEORIA	PEORILPJDS1	N/A	Prefix Type: RBOC Switch Name: PEORIA JEFFERSON DS1 Switch Type: DMS100 LATA: Peoria IL (368) Tandem: PEORILPJ52T 🔧 Explore Switch(CLLI: PEORILPJDS1))
309-680-9XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	PEORIA	PEORILPJDS1	N/A	Prefix Type: RBOC Switch Name: PEORIA JEFFERSON DS1 Switch Type: DMS100 LATA: Peoria IL (368) Tandem: PEORILPJ52T 🔧 Explore Switch(CLLI: PEORILPJDS1))
309-681	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	PEORIA	PEORILPBDS0	00/00/0000	Prefix Type: RBOC Switch Name: PEORIA BLUFFS Switch Type: DMS100 LATA: Peoria IL (368) Tandem: PEORILPJ52T 🔧 Explore Switch(CLLI: PEORILPBDS0))
309-681 is split into 1,000-number blocks - detail below
309-681-0XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	PEORIA	PEORILPBDS0	N/A	Prefix Type: RBOC Switch Name: PEORIA BLUFFS Switch Type: DMS100 LATA: Peoria IL (368) Tandem: PEORILPJ52T 🔧 Explore Switch(CLLI: PEORILPBDS0))
309-681-1XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	PEORIA	PEORILPBDS0	N/A	Prefix Type: RBOC Switch Name: PEORIA BLUFFS Switch Type: DMS100 LATA: Peoria IL (368) Tandem: PEORILPJ52T 🔧 Explore Switch(CLLI: PEORILPBDS0))
309-681-2XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	PEORIA	PEORILPBDS0	N/A	Prefix Type: RBOC Switch Name: PEORIA BLUFFS Switch Type: DMS100 LATA: Peoria IL (368) Tandem: PEORILPJ52T 🔧 Explore Switch(CLLI: PEORILPBDS0))
309-681-3XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	PEORIA	PEORILPBDS0	N/A	Prefix Type: RBOC Switch Name: PEORIA BLUFFS Switch Type: DMS100 LATA: Peoria IL (368) Tandem: PEORILPJ52T 🔧 Explore Switch(CLLI: PEORILPBDS0))
309-681-4XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	PEORIA	PEORILPBDS0	N/A	Prefix Type: RBOC Switch Name: PEORIA BLUFFS Switch Type: DMS100 LATA: Peoria IL (368) Tandem: PEORILPJ52T 🔧 Explore Switch(CLLI: PEORILPBDS0))
309-681-6XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	PEORIA	PEORILPBDS0	N/A	Prefix Type: RBOC Switch Name: PEORIA BLUFFS Switch Type: DMS100 LATA: Peoria IL (368) Tandem: PEORILPJ52T 🔧 Explore Switch(CLLI: PEORILPBDS0))
309-681-7XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	PEORIA	PEORILPBDS0	N/A	Prefix Type: RBOC Switch Name: PEORIA BLUFFS Switch Type: DMS100 LATA: Peoria IL (368) Tandem: PEORILPJ52T 🔧 Explore Switch(CLLI: PEORILPBDS0))
309-681-8XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	PEORIA	PEORILPBDS0	N/A	Prefix Type: RBOC Switch Name: PEORIA BLUFFS Switch Type: DMS100 LATA: Peoria IL (368) Tandem: PEORILPJ52T 🔧 Explore Switch(CLLI: PEORILPBDS0))
309-681-9XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	PEORIA	PEORILPBDS0	N/A	Prefix Type: RBOC Switch Name: PEORIA BLUFFS Switch Type: DMS100 LATA: Peoria IL (368) Tandem: PEORILPJ52T 🔧 Explore Switch(CLLI: PEORILPBDS0))
309-682	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	PEORIA	PEORILPBDS0	00/00/0000	Prefix Type: RBOC Switch Name: PEORIA BLUFFS Switch Type: DMS100 LATA: Peoria IL (368) Tandem: PEORILPJ52T 🔧 Explore Switch(CLLI: PEORILPBDS0))
309-683	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	PEORIA	PEORILPNDS0	00/00/0000	Prefix Type: RBOC Switch Name: PEORIA NORTH Switch Type: 5ESS LATA: Peoria IL (368) Tandem: PEORILPJ52T 🔧 Explore Switch(CLLI: PEORILPNDS0))
309-685	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	PEORIA	PEORILPBDS0	00/00/0000	Prefix Type: RBOC Switch Name: PEORIA BLUFFS Switch Type: DMS100 LATA: Peoria IL (368) Tandem: PEORILPJ52T 🔧 Explore Switch(CLLI: PEORILPBDS0))
309-686	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	PEORIA	PEORILPBDS0	00/00/0000	Prefix Type: RBOC Switch Name: PEORIA BLUFFS Switch Type: DMS100 LATA: Peoria IL (368) Tandem: PEORILPJ52T 🔧 Explore Switch(CLLI: PEORILPBDS0))
309-687	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	PEORIA	PEORILPBDS0	00/00/0000	Prefix Type: RBOC Switch Name: PEORIA BLUFFS Switch Type: DMS100 LATA: Peoria IL (368) Tandem: PEORILPJ52T 🔧 Explore Switch(CLLI: PEORILPBDS0))
309-687 is split into 1,000-number blocks - detail below
309-687-1XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	PEORIA	PEORILPBDS0	N/A	Prefix Type: RBOC Switch Name: PEORIA BLUFFS Switch Type: DMS100 LATA: Peoria IL (368) Tandem: PEORILPJ52T 🔧 Explore Switch(CLLI: PEORILPBDS0))
309-687-2XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	PEORIA	PEORILPBDS0	N/A	Prefix Type: RBOC Switch Name: PEORIA BLUFFS Switch Type: DMS100 LATA: Peoria IL (368) Tandem: PEORILPJ52T 🔧 Explore Switch(CLLI: PEORILPBDS0))
309-687-3XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	PEORIA	PEORILPBDS0	N/A	Prefix Type: RBOC Switch Name: PEORIA BLUFFS Switch Type: DMS100 LATA: Peoria IL (368) Tandem: PEORILPJ52T 🔧 Explore Switch(CLLI: PEORILPBDS0))
309-687-4XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	PEORIA	PEORILPBDS0	N/A	Prefix Type: RBOC Switch Name: PEORIA BLUFFS Switch Type: DMS100 LATA: Peoria IL (368) Tandem: PEORILPJ52T 🔧 Explore Switch(CLLI: PEORILPBDS0))
309-687-5XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	PEORIA	PEORILPBDS0	N/A	Prefix Type: RBOC Switch Name: PEORIA BLUFFS Switch Type: DMS100 LATA: Peoria IL (368) Tandem: PEORILPJ52T 🔧 Explore Switch(CLLI: PEORILPBDS0))
309-687-6XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	PEORIA	PEORILPBDS0	N/A	Prefix Type: RBOC Switch Name: PEORIA BLUFFS Switch Type: DMS100 LATA: Peoria IL (368) Tandem: PEORILPJ52T 🔧 Explore Switch(CLLI: PEORILPBDS0))
309-687-7XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	PEORIA	PEORILPBDS0	N/A	Prefix Type: RBOC Switch Name: PEORIA BLUFFS Switch Type: DMS100 LATA: Peoria IL (368) Tandem: PEORILPJ52T 🔧 Explore Switch(CLLI: PEORILPBDS0))
309-687-8XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	PEORIA	PEORILPBDS0	N/A	Prefix Type: RBOC Switch Name: PEORIA BLUFFS Switch Type: DMS100 LATA: Peoria IL (368) Tandem: PEORILPJ52T 🔧 Explore Switch(CLLI: PEORILPBDS0))
309-688	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	PEORIA	PEORILPBDS0	00/00/0000	Prefix Type: RBOC Switch Name: PEORIA BLUFFS Switch Type: DMS100 LATA: Peoria IL (368) Tandem: PEORILPJ52T 🔧 Explore Switch(CLLI: PEORILPBDS0))
309-689	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	PEORIA	PEORILPNDS0	00/00/0000	Prefix Type: RBOC Switch Name: PEORIA NORTH Switch Type: 5ESS LATA: Peoria IL (368) Tandem: PEORILPJ52T 🔧 Explore Switch(CLLI: PEORILPNDS0))
309-690	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	PEORIA	PEORILPNDS0	00/00/0000	Prefix Type: RBOC Switch Name: PEORIA NORTH Switch Type: 5ESS LATA: Peoria IL (368) Tandem: PEORILPJ52T 🔧 Explore Switch(CLLI: PEORILPNDS0))
309-690 is split into 1,000-number blocks - detail below
309-690-1XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	PEORIA	PEORILPNDS0	N/A	Prefix Type: RBOC Switch Name: PEORIA NORTH Switch Type: 5ESS LATA: Peoria IL (368) Tandem: PEORILPJ52T 🔧 Explore Switch(CLLI: PEORILPNDS0))
309-690-2XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	PEORIA	PEORILPNDS0	N/A	Prefix Type: RBOC Switch Name: PEORIA NORTH Switch Type: 5ESS LATA: Peoria IL (368) Tandem: PEORILPJ52T 🔧 Explore Switch(CLLI: PEORILPNDS0))
309-690-3XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	PEORIA	PEORILPNDS0	N/A	Prefix Type: RBOC Switch Name: PEORIA NORTH Switch Type: 5ESS LATA: Peoria IL (368) Tandem: PEORILPJ52T 🔧 Explore Switch(CLLI: PEORILPNDS0))
309-690-4XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	PEORIA	PEORILPNDS0	N/A	Prefix Type: RBOC Switch Name: PEORIA NORTH Switch Type: 5ESS LATA: Peoria IL (368) Tandem: PEORILPJ52T 🔧 Explore Switch(CLLI: PEORILPNDS0))
309-690-5XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	PEORIA	PEORILPNDS0	N/A	Prefix Type: RBOC Switch Name: PEORIA NORTH Switch Type: 5ESS LATA: Peoria IL (368) Tandem: PEORILPJ52T 🔧 Explore Switch(CLLI: PEORILPNDS0))
309-690-6XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	PEORIA	PEORILPNDS0	N/A	Prefix Type: RBOC Switch Name: PEORIA NORTH Switch Type: 5ESS LATA: Peoria IL (368) Tandem: PEORILPJ52T 🔧 Explore Switch(CLLI: PEORILPNDS0))
309-690-7XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	PEORIA	PEORILPNDS0	N/A	Prefix Type: RBOC Switch Name: PEORIA NORTH Switch Type: 5ESS LATA: Peoria IL (368) Tandem: PEORILPJ52T 🔧 Explore Switch(CLLI: PEORILPNDS0))
309-690-9XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	PEORIA	PEORILPNDS0	N/A	Prefix Type: RBOC Switch Name: PEORIA NORTH Switch Type: 5ESS LATA: Peoria IL (368) Tandem: PEORILPJ52T 🔧 Explore Switch(CLLI: PEORILPNDS0))
309-691	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	PEORIA	PEORILPNDS0	00/00/0000	Prefix Type: RBOC Switch Name: PEORIA NORTH Switch Type: 5ESS LATA: Peoria IL (368) Tandem: PEORILPJ52T 🔧 Explore Switch(CLLI: PEORILPNDS0))
309-692	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	PEORIA	PEORILPNDS0	00/00/0000	Prefix Type: RBOC Switch Name: PEORIA NORTH Switch Type: 5ESS LATA: Peoria IL (368) Tandem: PEORILPJ52T 🔧 Explore Switch(CLLI: PEORILPNDS0))
309-693	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	PEORIA	PEORILPNDS0	00/00/0000	Prefix Type: RBOC Switch Name: PEORIA NORTH Switch Type: 5ESS LATA: Peoria IL (368) Tandem: PEORILPJ52T 🔧 Explore Switch(CLLI: PEORILPNDS0))
309-694	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	PEORIA	EPERILPEDS0	00/00/0000	Prefix Type: RBOC Switch Name: PEORIA EAST Switch Type: DMS100 LATA: Peoria IL (368) Tandem: PEORILPJ52T 🔧 Explore Switch(CLLI: EPERILPEDS0))
309-697	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	PEORIA	BNVLILBNRS0	00/00/0000	Prefix Type: RBOC Switch Name: BARTONVILLE RS0 Switch Type: N/A LATA: Peoria IL (368) Tandem: PEORILPJ52T 🔧 Explore Switch(CLLI: BNVLILBNRS0))
309-698	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	PEORIA	EPERILPEDS0	00/00/0000	Prefix Type: RBOC Switch Name: PEORIA EAST Switch Type: DMS100 LATA: Peoria IL (368) Tandem: PEORILPJ52T 🔧 Explore Switch(CLLI: EPERILPEDS0))
309-699	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	PEORIA	EPERILPEDS0	00/00/0000	Prefix Type: RBOC Switch Name: PEORIA EAST Switch Type: DMS100 LATA: Peoria IL (368) Tandem: PEORILPJ52T 🔧 Explore Switch(CLLI: EPERILPEDS0))
309-732	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	ROCKISLAND	RCISILRIDS1	00/00/0000	Prefix Type: RBOC Switch Name: ROCK ISLAND DS1 Switch Type: DMS100 LATA: Davenport IA (634) Tandem: RCISILRI51T 🔧 Explore Switch(CLLI: RCISILRIDS1))
309-732 is split into 1,000-number blocks - detail below
309-732-0XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	ROCKISLAND	RCISILRIDS1	N/A	Prefix Type: RBOC Switch Name: ROCK ISLAND DS1 Switch Type: DMS100 LATA: Davenport IA (634) Tandem: RCISILRI51T 🔧 Explore Switch(CLLI: RCISILRIDS1))
309-732-1XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	ROCKISLAND	RCISILRIDS1	N/A	Prefix Type: RBOC Switch Name: ROCK ISLAND DS1 Switch Type: DMS100 LATA: Davenport IA (634) Tandem: RCISILRI51T 🔧 Explore Switch(CLLI: RCISILRIDS1))
309-732-2XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	ROCKISLAND	RCISILRIDS1	N/A	Prefix Type: RBOC Switch Name: ROCK ISLAND DS1 Switch Type: DMS100 LATA: Davenport IA (634) Tandem: RCISILRI51T 🔧 Explore Switch(CLLI: RCISILRIDS1))
309-732-3XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	ROCKISLAND	RCISILRIDS1	N/A	Prefix Type: RBOC Switch Name: ROCK ISLAND DS1 Switch Type: DMS100 LATA: Davenport IA (634) Tandem: RCISILRI51T 🔧 Explore Switch(CLLI: RCISILRIDS1))
309-732-4XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	ROCKISLAND	RCISILRIDS1	N/A	Prefix Type: RBOC Switch Name: ROCK ISLAND DS1 Switch Type: DMS100 LATA: Davenport IA (634) Tandem: RCISILRI51T 🔧 Explore Switch(CLLI: RCISILRIDS1))
309-732-5XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	ROCKISLAND	RCISILRIDS1	N/A	Prefix Type: RBOC Switch Name: ROCK ISLAND DS1 Switch Type: DMS100 LATA: Davenport IA (634) Tandem: RCISILRI51T 🔧 Explore Switch(CLLI: RCISILRIDS1))
309-732-7XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	ROCKISLAND	RCISILRIDS1	N/A	Prefix Type: RBOC Switch Name: ROCK ISLAND DS1 Switch Type: DMS100 LATA: Davenport IA (634) Tandem: RCISILRI51T 🔧 Explore Switch(CLLI: RCISILRIDS1))
309-732-8XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	ROCKISLAND	RCISILRIDS1	N/A	Prefix Type: RBOC Switch Name: ROCK ISLAND DS1 Switch Type: DMS100 LATA: Davenport IA (634) Tandem: RCISILRI51T 🔧 Explore Switch(CLLI: RCISILRIDS1))
309-732-9XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	ROCKISLAND	RCISILRIDS1	N/A	Prefix Type: RBOC Switch Name: ROCK ISLAND DS1 Switch Type: DMS100 LATA: Davenport IA (634) Tandem: RCISILRI51T 🔧 Explore Switch(CLLI: RCISILRIDS1))
309-736	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	MOLINE	MOLNILMLDS0	00/00/0000	Prefix Type: RBOC Switch Name: MOLINE DS0 Switch Type: DMS100 LATA: Davenport IA (634) Tandem: RCISILRI51T 🔧 Explore Switch(CLLI: MOLNILMLDS0))
309-743	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	MOLINE	MOLNILMLDS0	00/00/0000	Prefix Type: RBOC Switch Name: MOLINE DS0 Switch Type: DMS100 LATA: Davenport IA (634) Tandem: RCISILRI51T 🔧 Explore Switch(CLLI: MOLNILMLDS0))
309-748	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	EASTMOLINE	GRRKILESDS0	00/00/0000	Prefix Type: RBOC Switch Name: GREEN ROCK Switch Type: DMS100 LATA: Davenport IA (634) Tandem: RCISILRI51T 🔧 Explore Switch(CLLI: GRRKILESDS0))
309-749	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	EASTMOLINE	GRRKILESDS0	00/00/0000	Prefix Type: RBOC Switch Name: GREEN ROCK Switch Type: DMS100 LATA: Davenport IA (634) Tandem: RCISILRI51T 🔧 Explore Switch(CLLI: GRRKILESDS0))
309-749 is split into 1,000-number blocks - detail below
309-749-0XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	EASTMOLINE	GRRKILESDS0	N/A	Prefix Type: RBOC Switch Name: GREEN ROCK Switch Type: DMS100 LATA: Davenport IA (634) Tandem: RCISILRI51T 🔧 Explore Switch(CLLI: GRRKILESDS0))
309-749-1XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	EASTMOLINE	GRRKILESDS0	N/A	Prefix Type: RBOC Switch Name: GREEN ROCK Switch Type: DMS100 LATA: Davenport IA (634) Tandem: RCISILRI51T 🔧 Explore Switch(CLLI: GRRKILESDS0))
309-749-2XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	EASTMOLINE	GRRKILESDS0	N/A	Prefix Type: RBOC Switch Name: GREEN ROCK Switch Type: DMS100 LATA: Davenport IA (634) Tandem: RCISILRI51T 🔧 Explore Switch(CLLI: GRRKILESDS0))
309-749-3XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	EASTMOLINE	GRRKILESDS0	N/A	Prefix Type: RBOC Switch Name: GREEN ROCK Switch Type: DMS100 LATA: Davenport IA (634) Tandem: RCISILRI51T 🔧 Explore Switch(CLLI: GRRKILESDS0))
309-749-4XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	EASTMOLINE	GRRKILESDS0	N/A	Prefix Type: RBOC Switch Name: GREEN ROCK Switch Type: DMS100 LATA: Davenport IA (634) Tandem: RCISILRI51T 🔧 Explore Switch(CLLI: GRRKILESDS0))
309-751	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	EASTMOLINE	EMLNILEMDS0	00/00/0000	Prefix Type: RBOC Switch Name: EAST MOLINE DS0 Switch Type: DMS100 LATA: Davenport IA (634) Tandem: RCISILRI51T 🔧 Explore Switch(CLLI: EMLNILEMDS0))
309-751 is split into 1,000-number blocks - detail below
309-751-0XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	EASTMOLINE	EMLNILEMDS0	N/A	Prefix Type: RBOC Switch Name: EAST MOLINE DS0 Switch Type: DMS100 LATA: Davenport IA (634) Tandem: RCISILRI51T 🔧 Explore Switch(CLLI: EMLNILEMDS0))
309-751-2XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	EASTMOLINE	EMLNILEMDS0	N/A	Prefix Type: RBOC Switch Name: EAST MOLINE DS0 Switch Type: DMS100 LATA: Davenport IA (634) Tandem: RCISILRI51T 🔧 Explore Switch(CLLI: EMLNILEMDS0))
309-751-3XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	EASTMOLINE	EMLNILEMDS0	N/A	Prefix Type: RBOC Switch Name: EAST MOLINE DS0 Switch Type: DMS100 LATA: Davenport IA (634) Tandem: RCISILRI51T 🔧 Explore Switch(CLLI: EMLNILEMDS0))
309-751-6XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	EASTMOLINE	EMLNILEMDS0	N/A	Prefix Type: RBOC Switch Name: EAST MOLINE DS0 Switch Type: DMS100 LATA: Davenport IA (634) Tandem: RCISILRI51T 🔧 Explore Switch(CLLI: EMLNILEMDS0))
309-751-9XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	EASTMOLINE	EMLNILEMDS0	N/A	Prefix Type: RBOC Switch Name: EAST MOLINE DS0 Switch Type: DMS100 LATA: Davenport IA (634) Tandem: RCISILRI51T 🔧 Explore Switch(CLLI: EMLNILEMDS0))
309-752	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	EASTMOLINE	EMLNILEMDS0	00/00/0000	Prefix Type: RBOC Switch Name: EAST MOLINE DS0 Switch Type: DMS100 LATA: Davenport IA (634) Tandem: RCISILRI51T 🔧 Explore Switch(CLLI: EMLNILEMDS0))
309-752 is split into 1,000-number blocks - detail below
309-752-0XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	EASTMOLINE	EMLNILEMDS0	N/A	Prefix Type: RBOC Switch Name: EAST MOLINE DS0 Switch Type: DMS100 LATA: Davenport IA (634) Tandem: RCISILRI51T 🔧 Explore Switch(CLLI: EMLNILEMDS0))
309-752-1XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	EASTMOLINE	EMLNILEMDS0	N/A	Prefix Type: RBOC Switch Name: EAST MOLINE DS0 Switch Type: DMS100 LATA: Davenport IA (634) Tandem: RCISILRI51T 🔧 Explore Switch(CLLI: EMLNILEMDS0))
309-752-2XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	EASTMOLINE	EMLNILEMDS0	N/A	Prefix Type: RBOC Switch Name: EAST MOLINE DS0 Switch Type: DMS100 LATA: Davenport IA (634) Tandem: RCISILRI51T 🔧 Explore Switch(CLLI: EMLNILEMDS0))
309-752-4XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	EASTMOLINE	EMLNILEMDS0	N/A	Prefix Type: RBOC Switch Name: EAST MOLINE DS0 Switch Type: DMS100 LATA: Davenport IA (634) Tandem: RCISILRI51T 🔧 Explore Switch(CLLI: EMLNILEMDS0))
309-752-5XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	EASTMOLINE	EMLNILEMDS0	N/A	Prefix Type: RBOC Switch Name: EAST MOLINE DS0 Switch Type: DMS100 LATA: Davenport IA (634) Tandem: RCISILRI51T 🔧 Explore Switch(CLLI: EMLNILEMDS0))
309-752-6XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	EASTMOLINE	EMLNILEMDS0	N/A	Prefix Type: RBOC Switch Name: EAST MOLINE DS0 Switch Type: DMS100 LATA: Davenport IA (634) Tandem: RCISILRI51T 🔧 Explore Switch(CLLI: EMLNILEMDS0))
309-752-7XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	EASTMOLINE	EMLNILEMDS0	N/A	Prefix Type: RBOC Switch Name: EAST MOLINE DS0 Switch Type: DMS100 LATA: Davenport IA (634) Tandem: RCISILRI51T 🔧 Explore Switch(CLLI: EMLNILEMDS0))
309-752-9XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	EASTMOLINE	EMLNILEMDS0	N/A	Prefix Type: RBOC Switch Name: EAST MOLINE DS0 Switch Type: DMS100 LATA: Davenport IA (634) Tandem: RCISILRI51T 🔧 Explore Switch(CLLI: EMLNILEMDS0))
309-753	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	IPAVA	IPAVILIPRS0	00/00/0000	Prefix Type: RBOC Switch Name: IPAVA Switch Type: N/A LATA: Peoria IL (368) Tandem: PEORILPJ52T 🔧 Explore Switch(CLLI: IPAVILIPRS0))
309-753 is split into 1,000-number blocks - detail below
309-753-8XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	IPAVA	IPAVILIPRS0	N/A	Prefix Type: RBOC Switch Name: IPAVA Switch Type: N/A LATA: Peoria IL (368) Tandem: PEORILPJ52T 🔧 Explore Switch(CLLI: IPAVILIPRS0))
309-755	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	EASTMOLINE	EMLNILEMDS0	00/00/0000	Prefix Type: RBOC Switch Name: EAST MOLINE DS0 Switch Type: DMS100 LATA: Davenport IA (634) Tandem: RCISILRI51T 🔧 Explore Switch(CLLI: EMLNILEMDS0))
309-756	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	ROCKISLAND	MILNILMIDS0	00/00/0000	Prefix Type: RBOC Switch Name: MILAN Switch Type: EWSD LATA: Davenport IA (634) Tandem: RCISILRI51T 🔧 Explore Switch(CLLI: MILNILMIDS0))
309-756 is split into 1,000-number blocks - detail below
309-756-0XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	ROCKISLAND	MILNILMIDS0	N/A	Prefix Type: RBOC Switch Name: MILAN Switch Type: EWSD LATA: Davenport IA (634) Tandem: RCISILRI51T 🔧 Explore Switch(CLLI: MILNILMIDS0))
309-756-1XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	ROCKISLAND	MILNILMIDS0	N/A	Prefix Type: RBOC Switch Name: MILAN Switch Type: EWSD LATA: Davenport IA (634) Tandem: RCISILRI51T 🔧 Explore Switch(CLLI: MILNILMIDS0))
309-756-2XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	ROCKISLAND	MILNILMIDS0	N/A	Prefix Type: RBOC Switch Name: MILAN Switch Type: EWSD LATA: Davenport IA (634) Tandem: RCISILRI51T 🔧 Explore Switch(CLLI: MILNILMIDS0))
309-756-3XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	ROCKISLAND	MILNILMIDS0	N/A	Prefix Type: RBOC Switch Name: MILAN Switch Type: EWSD LATA: Davenport IA (634) Tandem: RCISILRI51T 🔧 Explore Switch(CLLI: MILNILMIDS0))
309-756-4XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	ROCKISLAND	MILNILMIDS0	N/A	Prefix Type: RBOC Switch Name: MILAN Switch Type: EWSD LATA: Davenport IA (634) Tandem: RCISILRI51T 🔧 Explore Switch(CLLI: MILNILMIDS0))
309-756-5XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	ROCKISLAND	MILNILMIDS0	N/A	Prefix Type: RBOC Switch Name: MILAN Switch Type: EWSD LATA: Davenport IA (634) Tandem: RCISILRI51T 🔧 Explore Switch(CLLI: MILNILMIDS0))
309-757	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	MOLINE	MOLNILMLDS0	00/00/0000	Prefix Type: RBOC Switch Name: MOLINE DS0 Switch Type: DMS100 LATA: Davenport IA (634) Tandem: RCISILRI51T 🔧 Explore Switch(CLLI: MOLNILMLDS0))
309-757 is split into 1,000-number blocks - detail below
309-757-0XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	MOLINE	MOLNILMLDS0	N/A	Prefix Type: RBOC Switch Name: MOLINE DS0 Switch Type: DMS100 LATA: Davenport IA (634) Tandem: RCISILRI51T 🔧 Explore Switch(CLLI: MOLNILMLDS0))
309-757-1XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	MOLINE	MOLNILMLDS0	N/A	Prefix Type: RBOC Switch Name: MOLINE DS0 Switch Type: DMS100 LATA: Davenport IA (634) Tandem: RCISILRI51T 🔧 Explore Switch(CLLI: MOLNILMLDS0))
309-757-3XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	MOLINE	MOLNILMLDS0	N/A	Prefix Type: RBOC Switch Name: MOLINE DS0 Switch Type: DMS100 LATA: Davenport IA (634) Tandem: RCISILRI51T 🔧 Explore Switch(CLLI: MOLNILMLDS0))
309-757-4XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	MOLINE	MOLNILMLDS0	N/A	Prefix Type: RBOC Switch Name: MOLINE DS0 Switch Type: DMS100 LATA: Davenport IA (634) Tandem: RCISILRI51T 🔧 Explore Switch(CLLI: MOLNILMLDS0))
309-757-5XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	MOLINE	MOLNILMLDS0	N/A	Prefix Type: RBOC Switch Name: MOLINE DS0 Switch Type: DMS100 LATA: Davenport IA (634) Tandem: RCISILRI51T 🔧 Explore Switch(CLLI: MOLNILMLDS0))
309-757-6XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	MOLINE	MOLNILMLDS0	N/A	Prefix Type: RBOC Switch Name: MOLINE DS0 Switch Type: DMS100 LATA: Davenport IA (634) Tandem: RCISILRI51T 🔧 Explore Switch(CLLI: MOLNILMLDS0))
309-757-7XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	MOLINE	MOLNILMLDS0	N/A	Prefix Type: RBOC Switch Name: MOLINE DS0 Switch Type: DMS100 LATA: Davenport IA (634) Tandem: RCISILRI51T 🔧 Explore Switch(CLLI: MOLNILMLDS0))
309-757-8XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	MOLINE	MOLNILMLDS0	N/A	Prefix Type: RBOC Switch Name: MOLINE DS0 Switch Type: DMS100 LATA: Davenport IA (634) Tandem: RCISILRI51T 🔧 Explore Switch(CLLI: MOLNILMLDS0))
309-757-9XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	MOLINE	MOLNILMLDS0	N/A	Prefix Type: RBOC Switch Name: MOLINE DS0 Switch Type: DMS100 LATA: Davenport IA (634) Tandem: RCISILRI51T 🔧 Explore Switch(CLLI: MOLNILMLDS0))
309-762	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	MOLINE	MOLNILMLDS0	00/00/0000	Prefix Type: RBOC Switch Name: MOLINE DS0 Switch Type: DMS100 LATA: Davenport IA (634) Tandem: RCISILRI51T 🔧 Explore Switch(CLLI: MOLNILMLDS0))
309-764	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	MOLINE	MOLNILMLDS0	00/00/0000	Prefix Type: RBOC Switch Name: MOLINE DS0 Switch Type: DMS100 LATA: Davenport IA (634) Tandem: RCISILRI51T 🔧 Explore Switch(CLLI: MOLNILMLDS0))
309-765	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	EASTMOLINE	GRRKILESDS0	00/00/0000	Prefix Type: RBOC Switch Name: GREEN ROCK Switch Type: DMS100 LATA: Davenport IA (634) Tandem: RCISILRI51T 🔧 Explore Switch(CLLI: GRRKILESDS0))
309-779	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	ROCKISLAND	RCISILRIDS1	00/00/0000	Prefix Type: RBOC Switch Name: ROCK ISLAND DS1 Switch Type: DMS100 LATA: Davenport IA (634) Tandem: RCISILRI51T 🔧 Explore Switch(CLLI: RCISILRIDS1))
309-779 is split into 1,000-number blocks - detail below
309-779-0XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	ROCKISLAND	RCISILRIDS1	N/A	Prefix Type: RBOC Switch Name: ROCK ISLAND DS1 Switch Type: DMS100 LATA: Davenport IA (634) Tandem: RCISILRI51T 🔧 Explore Switch(CLLI: RCISILRIDS1))
309-779-1XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	ROCKISLAND	RCISILRIDS1	N/A	Prefix Type: RBOC Switch Name: ROCK ISLAND DS1 Switch Type: DMS100 LATA: Davenport IA (634) Tandem: RCISILRI51T 🔧 Explore Switch(CLLI: RCISILRIDS1))
309-779-2XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	ROCKISLAND	RCISILRIDS1	N/A	Prefix Type: RBOC Switch Name: ROCK ISLAND DS1 Switch Type: DMS100 LATA: Davenport IA (634) Tandem: RCISILRI51T 🔧 Explore Switch(CLLI: RCISILRIDS1))
309-779-3XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	ROCKISLAND	RCISILRIDS1	N/A	Prefix Type: RBOC Switch Name: ROCK ISLAND DS1 Switch Type: DMS100 LATA: Davenport IA (634) Tandem: RCISILRI51T 🔧 Explore Switch(CLLI: RCISILRIDS1))
309-779-4XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	ROCKISLAND	RCISILRIDS1	N/A	Prefix Type: RBOC Switch Name: ROCK ISLAND DS1 Switch Type: DMS100 LATA: Davenport IA (634) Tandem: RCISILRI51T 🔧 Explore Switch(CLLI: RCISILRIDS1))
309-779-5XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	ROCKISLAND	RCISILRIDS1	N/A	Prefix Type: RBOC Switch Name: ROCK ISLAND DS1 Switch Type: DMS100 LATA: Davenport IA (634) Tandem: RCISILRI51T 🔧 Explore Switch(CLLI: RCISILRIDS1))
309-779-6XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	ROCKISLAND	RCISILRIDS1	N/A	Prefix Type: RBOC Switch Name: ROCK ISLAND DS1 Switch Type: DMS100 LATA: Davenport IA (634) Tandem: RCISILRI51T 🔧 Explore Switch(CLLI: RCISILRIDS1))
309-779-7XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	ROCKISLAND	RCISILRIDS1	N/A	Prefix Type: RBOC Switch Name: ROCK ISLAND DS1 Switch Type: DMS100 LATA: Davenport IA (634) Tandem: RCISILRI51T 🔧 Explore Switch(CLLI: RCISILRIDS1))
309-779-9XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	ROCKISLAND	RCISILRIDS1	N/A	Prefix Type: RBOC Switch Name: ROCK ISLAND DS1 Switch Type: DMS100 LATA: Davenport IA (634) Tandem: RCISILRI51T 🔧 Explore Switch(CLLI: RCISILRIDS1))
309-782	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	ROCKISLAND	RCISILRIDS1	00/00/0000	Prefix Type: RBOC Switch Name: ROCK ISLAND DS1 Switch Type: DMS100 LATA: Davenport IA (634) Tandem: RCISILRI51T 🔧 Explore Switch(CLLI: RCISILRIDS1))
309-786	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	ROCKISLAND	RCISILRIDS1	00/00/0000	Prefix Type: RBOC Switch Name: ROCK ISLAND DS1 Switch Type: DMS100 LATA: Davenport IA (634) Tandem: RCISILRI51T 🔧 Explore Switch(CLLI: RCISILRIDS1))
309-787	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	ROCKISLAND	MILNILMIDS0	00/00/0000	Prefix Type: RBOC Switch Name: MILAN Switch Type: EWSD LATA: Davenport IA (634) Tandem: RCISILRI51T 🔧 Explore Switch(CLLI: MILNILMIDS0))
309-788	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	ROCKISLAND	RCISILRIDS1	00/00/0000	Prefix Type: RBOC Switch Name: ROCK ISLAND DS1 Switch Type: DMS100 LATA: Davenport IA (634) Tandem: RCISILRI51T 🔧 Explore Switch(CLLI: RCISILRIDS1))
309-789	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	FIATT	FIATILFIRS0	00/00/0000	Prefix Type: RBOC Switch Name: FIATT Switch Type: N/A LATA: Peoria IL (368) Tandem: PEORILPJ52T 🔧 Explore Switch(CLLI: FIATILFIRS0))
309-789 is split into 1,000-number blocks - detail below
309-789-2XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	FIATT	FIATILFIRS0	N/A	Prefix Type: RBOC Switch Name: FIATT Switch Type: N/A LATA: Peoria IL (368) Tandem: PEORILPJ52T 🔧 Explore Switch(CLLI: FIATILFIRS0))
309-791	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	ILLINOISCY	EDTNILENRS0	00/00/0000	Prefix Type: RBOC Switch Name: EDGINGTON Switch Type: N/A LATA: Davenport IA (634) Tandem: RCISILRI51T 🔧 Explore Switch(CLLI: EDTNILENRS0))
309-791 is split into 1,000-number blocks - detail below
309-791-0XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	ILLINOISCY	EDTNILENRS0	N/A	Prefix Type: RBOC Switch Name: EDGINGTON Switch Type: N/A LATA: Davenport IA (634) Tandem: RCISILRI51T 🔧 Explore Switch(CLLI: EDTNILENRS0))
309-791-5XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	ILLINOISCY	EDTNILENRS0	N/A	Prefix Type: RBOC Switch Name: EDGINGTON Switch Type: N/A LATA: Davenport IA (634) Tandem: RCISILRI51T 🔧 Explore Switch(CLLI: EDTNILENRS0))
309-791-7XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	ILLINOISCY	EDTNILENRS0	N/A	Prefix Type: RBOC Switch Name: EDGINGTON Switch Type: N/A LATA: Davenport IA (634) Tandem: RCISILRI51T 🔧 Explore Switch(CLLI: EDTNILENRS0))
309-791-8XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	ILLINOISCY	EDTNILENRS0	N/A	Prefix Type: RBOC Switch Name: EDGINGTON Switch Type: N/A LATA: Davenport IA (634) Tandem: RCISILRI51T 🔧 Explore Switch(CLLI: EDTNILENRS0))
309-792	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	EASTMOLINE	GRRKILESDS0	00/00/0000	Prefix Type: RBOC Switch Name: GREEN ROCK Switch Type: DMS100 LATA: Davenport IA (634) Tandem: RCISILRI51T 🔧 Explore Switch(CLLI: GRRKILESDS0))
309-793	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	ROCKISLAND	RCISILRIDS1	00/00/0000	Prefix Type: RBOC Switch Name: ROCK ISLAND DS1 Switch Type: DMS100 LATA: Davenport IA (634) Tandem: RCISILRI51T 🔧 Explore Switch(CLLI: RCISILRIDS1))
309-794	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	ROCKISLAND	RCISILRIDS1	00/00/0000	Prefix Type: RBOC Switch Name: ROCK ISLAND DS1 Switch Type: DMS100 LATA: Davenport IA (634) Tandem: RCISILRI51T 🔧 Explore Switch(CLLI: RCISILRIDS1))
309-795	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	EDGINGTON	EDTNILENRS0	00/00/0000	Prefix Type: RBOC Switch Name: EDGINGTON Switch Type: N/A LATA: Davenport IA (634) Tandem: RCISILRI51T 🔧 Explore Switch(CLLI: EDTNILENRS0))
309-795 is split into 1,000-number blocks - detail below
309-795-0XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	EDGINGTON	EDTNILENRS0	N/A	Prefix Type: RBOC Switch Name: EDGINGTON Switch Type: N/A LATA: Davenport IA (634) Tandem: RCISILRI51T 🔧 Explore Switch(CLLI: EDTNILENRS0))
309-795-1XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	EDGINGTON	EDTNILENRS0	N/A	Prefix Type: RBOC Switch Name: EDGINGTON Switch Type: N/A LATA: Davenport IA (634) Tandem: RCISILRI51T 🔧 Explore Switch(CLLI: EDTNILENRS0))
309-795-2XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	EDGINGTON	EDTNILENRS0	N/A	Prefix Type: RBOC Switch Name: EDGINGTON Switch Type: N/A LATA: Davenport IA (634) Tandem: RCISILRI51T 🔧 Explore Switch(CLLI: EDTNILENRS0))
309-796	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	EASTMOLINE	GRRKILESDS0	00/00/0000	Prefix Type: RBOC Switch Name: GREEN ROCK Switch Type: DMS100 LATA: Davenport IA (634) Tandem: RCISILRI51T 🔧 Explore Switch(CLLI: GRRKILESDS0))
309-797	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	MOLINE	MOLNILMLDS0	00/00/0000	Prefix Type: RBOC Switch Name: MOLINE DS0 Switch Type: DMS100 LATA: Davenport IA (634) Tandem: RCISILRI51T 🔧 Explore Switch(CLLI: MOLNILMLDS0))
309-798	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	ROCKISLAND	EDTNILENRS0	00/00/0000	Prefix Type: RBOC Switch Name: EDGINGTON Switch Type: N/A LATA: Davenport IA (634) Tandem: RCISILRI51T 🔧 Explore Switch(CLLI: EDTNILENRS0))
309-798 is split into 1,000-number blocks - detail below
309-798-2XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	ROCKISLAND	EDTNILENRS0	N/A	Prefix Type: RBOC Switch Name: EDGINGTON Switch Type: N/A LATA: Davenport IA (634) Tandem: RCISILRI51T 🔧 Explore Switch(CLLI: EDTNILENRS0))
309-798-5XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	ROCKISLAND	EDTNILENRS0	N/A	Prefix Type: RBOC Switch Name: EDGINGTON Switch Type: N/A LATA: Davenport IA (634) Tandem: RCISILRI51T 🔧 Explore Switch(CLLI: EDTNILENRS0))
309-799	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	MOLINE	CLVYILCVRS0	00/00/0000	Prefix Type: RBOC Switch Name: COAL VALLEY Switch Type: N/A LATA: Davenport IA (634) Tandem: RCISILRI51T 🔧 Explore Switch(CLLI: CLVYILCVRS0))
309-799 is split into 1,000-number blocks - detail below
309-799-1XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	MOLINE	CLVYILCVRS0	N/A	Prefix Type: RBOC Switch Name: COAL VALLEY Switch Type: N/A LATA: Davenport IA (634) Tandem: RCISILRI51T 🔧 Explore Switch(CLLI: CLVYILCVRS0))
309-799-3XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	MOLINE	CLVYILCVRS0	N/A	Prefix Type: RBOC Switch Name: COAL VALLEY Switch Type: N/A LATA: Davenport IA (634) Tandem: RCISILRI51T 🔧 Explore Switch(CLLI: CLVYILCVRS0))
309-799-4XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	MOLINE	CLVYILCVRS0	N/A	Prefix Type: RBOC Switch Name: COAL VALLEY Switch Type: N/A LATA: Davenport IA (634) Tandem: RCISILRI51T 🔧 Explore Switch(CLLI: CLVYILCVRS0))
309-799-5XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	MOLINE	CLVYILCVRS0	N/A	Prefix Type: RBOC Switch Name: COAL VALLEY Switch Type: N/A LATA: Davenport IA (634) Tandem: RCISILRI51T 🔧 Explore Switch(CLLI: CLVYILCVRS0))
309-799-7XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	MOLINE	CLVYILCVRS0	N/A	Prefix Type: RBOC Switch Name: COAL VALLEY Switch Type: N/A LATA: Davenport IA (634) Tandem: RCISILRI51T 🔧 Explore Switch(CLLI: CLVYILCVRS0))
309-799-8XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	MOLINE	CLVYILCVRS0	N/A	Prefix Type: RBOC Switch Name: COAL VALLEY Switch Type: N/A LATA: Davenport IA (634) Tandem: RCISILRI51T 🔧 Explore Switch(CLLI: CLVYILCVRS0))
309-822	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	SPRING BAY	SPBYILSBRS0	00/00/0000	Prefix Type: RBOC Switch Name: SPRING BAY Switch Type: N/A LATA: Peoria IL (368) Tandem: PEORILPJ52T 🔧 Explore Switch(CLLI: SPBYILSBRS0))
309-822 is split into 1,000-number blocks - detail below
309-822-0XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	SPRING BAY	SPBYILSBRS0	N/A	Prefix Type: RBOC Switch Name: SPRING BAY Switch Type: N/A LATA: Peoria IL (368) Tandem: PEORILPJ52T 🔧 Explore Switch(CLLI: SPBYILSBRS0))
309-822-8XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	SPRING BAY	SPBYILSBRS0	N/A	Prefix Type: RBOC Switch Name: SPRING BAY Switch Type: N/A LATA: Peoria IL (368) Tandem: PEORILPJ52T 🔧 Explore Switch(CLLI: SPBYILSBRS0))
309-992	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	PEORIA	PEORILPJDS1	09/12/2006	Prefix Type: RBOC Switch Name: PEORIA JEFFERSON DS1 Switch Type: DMS100 LATA: Peoria IL (368) Tandem: PEORILPJ52T 🔧 Explore Switch(CLLI: PEORILPJDS1))
309-992 is split into 1,000-number blocks - detail below
309-992-2XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	PEORIA	PEORILPJDS1	09/12/2006	Prefix Type: RBOC Switch Name: PEORIA JEFFERSON DS1 Switch Type: DMS100 LATA: Peoria IL (368) Tandem: PEORILPJ52T 🔧 Explore Switch(CLLI: PEORILPJDS1))
309-992-3XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	PEORIA	PEORILPJDS1	09/12/2006	Prefix Type: RBOC Switch Name: PEORIA JEFFERSON DS1 Switch Type: DMS100 LATA: Peoria IL (368) Tandem: PEORILPJ52T 🔧 Explore Switch(CLLI: PEORILPJDS1))
309-992-4XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	PEORIA	PEORILPJDS1	09/12/2006	Prefix Type: RBOC Switch Name: PEORIA JEFFERSON DS1 Switch Type: DMS100 LATA: Peoria IL (368) Tandem: PEORILPJ52T 🔧 Explore Switch(CLLI: PEORILPJDS1))
309-992-5XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	PEORIA	PEORILPJDS1	09/12/2006	Prefix Type: RBOC Switch Name: PEORIA JEFFERSON DS1 Switch Type: DMS100 LATA: Peoria IL (368) Tandem: PEORILPJ52T 🔧 Explore Switch(CLLI: PEORILPJDS1))
309-992-6XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	PEORIA	PEORILPJDS1	09/12/2006	Prefix Type: RBOC Switch Name: PEORIA JEFFERSON DS1 Switch Type: DMS100 LATA: Peoria IL (368) Tandem: PEORILPJ52T 🔧 Explore Switch(CLLI: PEORILPJDS1))
309-992-7XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	PEORIA	PEORILPJDS1	09/12/2006	Prefix Type: RBOC Switch Name: PEORIA JEFFERSON DS1 Switch Type: DMS100 LATA: Peoria IL (368) Tandem: PEORILPJ52T 🔧 Explore Switch(CLLI: PEORILPJDS1))
309-999	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	PEORIA	PEORILPJDS1	00/00/0000	Prefix Type: RBOC Switch Name: PEORIA JEFFERSON DS1 Switch Type: DMS100 LATA: Peoria IL (368) Tandem: PEORILPJ52T 🔧 Explore Switch(CLLI: PEORILPJDS1))
309-999 is split into 1,000-number blocks - detail below
309-999-0XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	PEORIA	PEORILPJDS1	N/A	Prefix Type: RBOC Switch Name: PEORIA JEFFERSON DS1 Switch Type: DMS100 LATA: Peoria IL (368) Tandem: PEORILPJ52T 🔧 Explore Switch(CLLI: PEORILPJDS1))
309-999-1XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	PEORIA	PEORILPJDS1	N/A	Prefix Type: RBOC Switch Name: PEORIA JEFFERSON DS1 Switch Type: DMS100 LATA: Peoria IL (368) Tandem: PEORILPJ52T 🔧 Explore Switch(CLLI: PEORILPJDS1))
309-999-2XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	PEORIA	PEORILPJDS1	N/A	Prefix Type: RBOC Switch Name: PEORIA JEFFERSON DS1 Switch Type: DMS100 LATA: Peoria IL (368) Tandem: PEORILPJ52T 🔧 Explore Switch(CLLI: PEORILPJDS1))
309-999-3XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	PEORIA	PEORILPJDS1	N/A	Prefix Type: RBOC Switch Name: PEORIA JEFFERSON DS1 Switch Type: DMS100 LATA: Peoria IL (368) Tandem: PEORILPJ52T 🔧 Explore Switch(CLLI: PEORILPJDS1))
309-999-4XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	PEORIA	PEORILPJDS1	N/A	Prefix Type: RBOC Switch Name: PEORIA JEFFERSON DS1 Switch Type: DMS100 LATA: Peoria IL (368) Tandem: PEORILPJ52T 🔧 Explore Switch(CLLI: PEORILPJDS1))
309-999-5XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	PEORIA	PEORILPJDS1	N/A	Prefix Type: RBOC Switch Name: PEORIA JEFFERSON DS1 Switch Type: DMS100 LATA: Peoria IL (368) Tandem: PEORILPJ52T 🔧 Explore Switch(CLLI: PEORILPJDS1))
309-999-6XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	PEORIA	PEORILPJDS1	N/A	Prefix Type: RBOC Switch Name: PEORIA JEFFERSON DS1 Switch Type: DMS100 LATA: Peoria IL (368) Tandem: PEORILPJ52T 🔧 Explore Switch(CLLI: PEORILPJDS1))
309-999-8XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	PEORIA	PEORILPJDS1	N/A	Prefix Type: RBOC Switch Name: PEORIA JEFFERSON DS1 Switch Type: DMS100 LATA: Peoria IL (368) Tandem: PEORILPJ52T 🔧 Explore Switch(CLLI: PEORILPJDS1))
309-999-9XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	PEORIA	PEORILPJDS1	N/A	Prefix Type: RBOC Switch Name: PEORIA JEFFERSON DS1 Switch Type: DMS100 LATA: Peoria IL (368) Tandem: PEORILPJ52T 🔧 Explore Switch(CLLI: PEORILPJDS1))
312-201	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILFRDS0	00/00/0000	Prefix Type: RBOC Switch Name: CHCG FRANKLIN DS0 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILFRDS0))
312-202	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILSUDS2	00/00/0000	Prefix Type: RBOC Switch Name: CHCG SUPERIOR DS2 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILSUDS2))
312-202 is split into 1,000-number blocks - detail below
312-202-0XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILSUDS2	N/A	Prefix Type: RBOC Switch Name: CHCG SUPERIOR DS2 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILSUDS2))
312-202-1XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILSUDS2	N/A	Prefix Type: RBOC Switch Name: CHCG SUPERIOR DS2 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILSUDS2))
312-202-4XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILSUDS2	N/A	Prefix Type: RBOC Switch Name: CHCG SUPERIOR DS2 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILSUDS2))
312-202-5XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILSUDS2	N/A	Prefix Type: RBOC Switch Name: CHCG SUPERIOR DS2 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILSUDS2))
312-202-6XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILSUDS2	N/A	Prefix Type: RBOC Switch Name: CHCG SUPERIOR DS2 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILSUDS2))
312-202-7XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILSUDS2	N/A	Prefix Type: RBOC Switch Name: CHCG SUPERIOR DS2 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILSUDS2))
312-202-8XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILSUDS2	N/A	Prefix Type: RBOC Switch Name: CHCG SUPERIOR DS2 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILSUDS2))
312-202-9XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILSUDS2	N/A	Prefix Type: RBOC Switch Name: CHCG SUPERIOR DS2 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILSUDS2))
312-204	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILSUDS2	00/00/0000	Prefix Type: RBOC Switch Name: CHCG SUPERIOR DS2 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILSUDS2))
312-204 is split into 1,000-number blocks - detail below
312-204-0XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILSUDS2	N/A	Prefix Type: RBOC Switch Name: CHCG SUPERIOR DS2 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILSUDS2))
312-204-1XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILSUDS2	N/A	Prefix Type: RBOC Switch Name: CHCG SUPERIOR DS2 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILSUDS2))
312-204-2XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILSUDS2	N/A	Prefix Type: RBOC Switch Name: CHCG SUPERIOR DS2 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILSUDS2))
312-204-3XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILSUDS2	N/A	Prefix Type: RBOC Switch Name: CHCG SUPERIOR DS2 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILSUDS2))
312-204-4XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILSUDS2	N/A	Prefix Type: RBOC Switch Name: CHCG SUPERIOR DS2 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILSUDS2))
312-204-5XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILSUDS2	N/A	Prefix Type: RBOC Switch Name: CHCG SUPERIOR DS2 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILSUDS2))
312-207	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILCLDS3	00/00/0000	Prefix Type: RBOC Switch Name: CHCG CANAL EAST DS3 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILCLDS3))
312-207 is split into 1,000-number blocks - detail below
312-207-0XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILCLDS3	N/A	Prefix Type: RBOC Switch Name: CHCG CANAL EAST DS3 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILCLDS3))
312-207-1XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILCLDS3	N/A	Prefix Type: RBOC Switch Name: CHCG CANAL EAST DS3 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILCLDS3))
312-207-2XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILCLDS3	N/A	Prefix Type: RBOC Switch Name: CHCG CANAL EAST DS3 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILCLDS3))
312-207-3XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILCLDS3	N/A	Prefix Type: RBOC Switch Name: CHCG CANAL EAST DS3 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILCLDS3))
312-207-4XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILCLDS3	N/A	Prefix Type: RBOC Switch Name: CHCG CANAL EAST DS3 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILCLDS3))
312-207-5XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILCLDS3	N/A	Prefix Type: RBOC Switch Name: CHCG CANAL EAST DS3 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILCLDS3))
312-207-6XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILCLDS3	N/A	Prefix Type: RBOC Switch Name: CHCG CANAL EAST DS3 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILCLDS3))
312-207-7XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILCLDS3	N/A	Prefix Type: RBOC Switch Name: CHCG CANAL EAST DS3 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILCLDS3))
312-207-8XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILCLDS3	N/A	Prefix Type: RBOC Switch Name: CHCG CANAL EAST DS3 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILCLDS3))
312-212	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILWBDS2	00/00/0000	Prefix Type: RBOC Switch Name: CHCG WABASH DS2 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILWB55T 🔧 Explore Switch(CLLI: CHCGILWBDS2))
312-212 is split into 1,000-number blocks - detail below
312-212-1XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILWBDS2	N/A	Prefix Type: RBOC Switch Name: CHCG WABASH DS2 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILWB55T 🔧 Explore Switch(CLLI: CHCGILWBDS2))
312-212-2XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILWBDS2	N/A	Prefix Type: RBOC Switch Name: CHCG WABASH DS2 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILWB55T 🔧 Explore Switch(CLLI: CHCGILWBDS2))
312-212-6XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILWBDS2	N/A	Prefix Type: RBOC Switch Name: CHCG WABASH DS2 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILWB55T 🔧 Explore Switch(CLLI: CHCGILWBDS2))
312-214	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILFRDS1	00/00/0000	Prefix Type: RBOC Switch Name: CHCG FRANKLIN DS1 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILFRDS1))
312-220	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILFRDS0	00/00/0000	Prefix Type: RBOC Switch Name: CHCG FRANKLIN DS0 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILFRDS0))
312-222	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILIDDS0	00/00/0000	Prefix Type: RBOC Switch Name: CHCG ILL DEAR DS0 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILIDDS0))
312-223	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILFRDS1	00/00/0000	Prefix Type: RBOC Switch Name: CHCG FRANKLIN DS1 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILFRDS1))
312-225	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILCADS1	00/00/0000	Prefix Type: RBOC Switch Name: CHCG CALUMET DS1 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILST55T 🔧 Explore Switch(CLLI: CHCGILCADS1))
312-226	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILMODS1	00/00/0000	Prefix Type: RBOC Switch Name: CHCG MONROE DS1 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILST55T 🔧 Explore Switch(CLLI: CHCGILMODS1))
312-227	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILSUDS2	09/15/2010	Prefix Type: RBOC Switch Name: CHCG SUPERIOR DS2 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILSUDS2))
312-227 is split into 1,000-number blocks - detail below
312-227-0XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILSUDS2	09/20/2010	Prefix Type: RBOC Switch Name: CHCG SUPERIOR DS2 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILSUDS2))
312-227-1XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILSUDS2	09/20/2010	Prefix Type: RBOC Switch Name: CHCG SUPERIOR DS2 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILSUDS2))
312-227-2XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILSUDS2	09/20/2010	Prefix Type: RBOC Switch Name: CHCG SUPERIOR DS2 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILSUDS2))
312-227-3XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILSUDS2	09/20/2010	Prefix Type: RBOC Switch Name: CHCG SUPERIOR DS2 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILSUDS2))
312-227-4XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILSUDS2	09/20/2010	Prefix Type: RBOC Switch Name: CHCG SUPERIOR DS2 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILSUDS2))
312-227-5XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILSUDS2	09/20/2010	Prefix Type: RBOC Switch Name: CHCG SUPERIOR DS2 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILSUDS2))
312-227-6XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILSUDS2	09/20/2010	Prefix Type: RBOC Switch Name: CHCG SUPERIOR DS2 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILSUDS2))
312-227-7XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILSUDS2	09/20/2010	Prefix Type: RBOC Switch Name: CHCG SUPERIOR DS2 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILSUDS2))
312-227-8XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILSUDS2	09/20/2010	Prefix Type: RBOC Switch Name: CHCG SUPERIOR DS2 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILSUDS2))
312-227-9XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILSUDS2	09/20/2010	Prefix Type: RBOC Switch Name: CHCG SUPERIOR DS2 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILSUDS2))
312-228	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILLRDS0	00/00/0000	Prefix Type: RBOC Switch Name: CHCG LAKESHORE Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILLRDS0))
312-229	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILIDDS0	00/00/0000	Prefix Type: RBOC Switch Name: CHCG ILL DEAR DS0 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILIDDS0))
312-229 is split into 1,000-number blocks - detail below
312-229-2XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILIDDS0	N/A	Prefix Type: RBOC Switch Name: CHCG ILL DEAR DS0 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILIDDS0))
312-229-3XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILIDDS0	N/A	Prefix Type: RBOC Switch Name: CHCG ILL DEAR DS0 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILIDDS0))
312-229-8XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILIDDS0	N/A	Prefix Type: RBOC Switch Name: CHCG ILL DEAR DS0 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILIDDS0))
312-230	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILFRDS0	00/00/0000	Prefix Type: RBOC Switch Name: CHCG FRANKLIN DS0 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILFRDS0))
312-230 is split into 1,000-number blocks - detail below
312-230-0XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILFRDS0	N/A	Prefix Type: RBOC Switch Name: CHCG FRANKLIN DS0 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILFRDS0))
312-230-1XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILFRDS0	N/A	Prefix Type: RBOC Switch Name: CHCG FRANKLIN DS0 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILFRDS0))
312-230-2XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILFRDS0	N/A	Prefix Type: RBOC Switch Name: CHCG FRANKLIN DS0 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILFRDS0))
312-230-3XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILFRDS0	N/A	Prefix Type: RBOC Switch Name: CHCG FRANKLIN DS0 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILFRDS0))
312-230-4XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILFRDS0	N/A	Prefix Type: RBOC Switch Name: CHCG FRANKLIN DS0 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILFRDS0))
312-230-5XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILFRDS0	N/A	Prefix Type: RBOC Switch Name: CHCG FRANKLIN DS0 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILFRDS0))
312-230-6XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILFRDS0	N/A	Prefix Type: RBOC Switch Name: CHCG FRANKLIN DS0 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILFRDS0))
312-230-7XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILFRDS0	N/A	Prefix Type: RBOC Switch Name: CHCG FRANKLIN DS0 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILFRDS0))
312-230-9XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILFRDS0	N/A	Prefix Type: RBOC Switch Name: CHCG FRANKLIN DS0 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILFRDS0))
312-233	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILLRDS0	00/00/0000	Prefix Type: RBOC Switch Name: CHCG LAKESHORE Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILLRDS0))
312-233 is split into 1,000-number blocks - detail below
312-233-0XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILLRDS0	N/A	Prefix Type: RBOC Switch Name: CHCG LAKESHORE Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILLRDS0))
312-233-1XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILLRDS0	N/A	Prefix Type: RBOC Switch Name: CHCG LAKESHORE Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILLRDS0))
312-233-3XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILLRDS0	N/A	Prefix Type: RBOC Switch Name: CHCG LAKESHORE Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILLRDS0))
312-233-4XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILLRDS0	N/A	Prefix Type: RBOC Switch Name: CHCG LAKESHORE Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILLRDS0))
312-233-5XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILLRDS0	N/A	Prefix Type: RBOC Switch Name: CHCG LAKESHORE Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILLRDS0))
312-233-6XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILLRDS0	N/A	Prefix Type: RBOC Switch Name: CHCG LAKESHORE Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILLRDS0))
312-233-7XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILLRDS0	N/A	Prefix Type: RBOC Switch Name: CHCG LAKESHORE Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILLRDS0))
312-233-8XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILLRDS0	N/A	Prefix Type: RBOC Switch Name: CHCG LAKESHORE Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILLRDS0))
312-233-9XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILLRDS0	N/A	Prefix Type: RBOC Switch Name: CHCG LAKESHORE Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILLRDS0))
312-234	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILCLDS3	00/00/0000	Prefix Type: RBOC Switch Name: CHCG CANAL EAST DS3 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILCLDS3))
312-234 is split into 1,000-number blocks - detail below
312-234-1XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILCLDS3	N/A	Prefix Type: RBOC Switch Name: CHCG CANAL EAST DS3 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILCLDS3))
312-234-2XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILCLDS3	N/A	Prefix Type: RBOC Switch Name: CHCG CANAL EAST DS3 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILCLDS3))
312-234-3XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILCLDS3	N/A	Prefix Type: RBOC Switch Name: CHCG CANAL EAST DS3 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILCLDS3))
312-234-4XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILCLDS3	N/A	Prefix Type: RBOC Switch Name: CHCG CANAL EAST DS3 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILCLDS3))
312-234-5XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILCLDS3	N/A	Prefix Type: RBOC Switch Name: CHCG CANAL EAST DS3 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILCLDS3))
312-234-6XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILCLDS3	N/A	Prefix Type: RBOC Switch Name: CHCG CANAL EAST DS3 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILCLDS3))
312-234-7XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILCLDS3	N/A	Prefix Type: RBOC Switch Name: CHCG CANAL EAST DS3 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILCLDS3))
312-234-8XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILCLDS3	N/A	Prefix Type: RBOC Switch Name: CHCG CANAL EAST DS3 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILCLDS3))
312-234-9XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILCLDS3	N/A	Prefix Type: RBOC Switch Name: CHCG CANAL EAST DS3 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILCLDS3))
312-235	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILWBDS2	00/00/0000	Prefix Type: RBOC Switch Name: CHCG WABASH DS2 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILWB55T 🔧 Explore Switch(CLLI: CHCGILWBDS2))
312-235 is split into 1,000-number blocks - detail below
312-235-0XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILWBDS2	N/A	Prefix Type: RBOC Switch Name: CHCG WABASH DS2 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILWB55T 🔧 Explore Switch(CLLI: CHCGILWBDS2))
312-235-7XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILWBDS2	N/A	Prefix Type: RBOC Switch Name: CHCG WABASH DS2 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILWB55T 🔧 Explore Switch(CLLI: CHCGILWBDS2))
312-235-8XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILWBDS2	N/A	Prefix Type: RBOC Switch Name: CHCG WABASH DS2 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILWB55T 🔧 Explore Switch(CLLI: CHCGILWBDS2))
312-236	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILFRDS4	00/00/0000	Prefix Type: RBOC Switch Name: CHCG FRANKLIN DS4 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILFRDS4))
312-240	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILLRDS0	00/00/0000	Prefix Type: RBOC Switch Name: CHCG LAKESHORE Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILLRDS0))
312-243	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILMODS1	00/00/0000	Prefix Type: RBOC Switch Name: CHCG MONROE DS1 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILST55T 🔧 Explore Switch(CLLI: CHCGILMODS1))
312-244	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILFRDS1	00/00/0000	Prefix Type: RBOC Switch Name: CHCG FRANKLIN DS1 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILFRDS1))
312-244 is split into 1,000-number blocks - detail below
312-244-1XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILFRDS1	N/A	Prefix Type: RBOC Switch Name: CHCG FRANKLIN DS1 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILFRDS1))
312-244-6XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILFRDS1	N/A	Prefix Type: RBOC Switch Name: CHCG FRANKLIN DS1 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILFRDS1))
312-244-7XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILFRDS1	N/A	Prefix Type: RBOC Switch Name: CHCG FRANKLIN DS1 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILFRDS1))
312-244-8XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILFRDS1	N/A	Prefix Type: RBOC Switch Name: CHCG FRANKLIN DS1 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILFRDS1))
312-245	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILIDDS0	00/00/0000	Prefix Type: RBOC Switch Name: CHCG ILL DEAR DS0 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILIDDS0))
312-251	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILFRDS0	00/00/0000	Prefix Type: RBOC Switch Name: CHCG FRANKLIN DS0 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILFRDS0))
312-252 is split into 1,000-number blocks - detail below
312-252-6XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILFRDS3	10/01/2002	Prefix Type: RBOC Switch Name: CHCG FRANKLIN DS3 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILFRDS3))
312-252-7XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILFRDS3	01/23/2003	Prefix Type: RBOC Switch Name: CHCG FRANKLIN DS3 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILFRDS3))
312-255	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILSUDS2	00/00/0000	Prefix Type: RBOC Switch Name: CHCG SUPERIOR DS2 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILSUDS2))
312-255 is split into 1,000-number blocks - detail below
312-255-0XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILSUDS2	N/A	Prefix Type: RBOC Switch Name: CHCG SUPERIOR DS2 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILSUDS2))
312-255-1XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILSUDS2	N/A	Prefix Type: RBOC Switch Name: CHCG SUPERIOR DS2 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILSUDS2))
312-255-2XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILSUDS2	N/A	Prefix Type: RBOC Switch Name: CHCG SUPERIOR DS2 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILSUDS2))
312-255-3XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILSUDS2	N/A	Prefix Type: RBOC Switch Name: CHCG SUPERIOR DS2 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILSUDS2))
312-255-4XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILSUDS2	N/A	Prefix Type: RBOC Switch Name: CHCG SUPERIOR DS2 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILSUDS2))
312-255-5XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILSUDS2	N/A	Prefix Type: RBOC Switch Name: CHCG SUPERIOR DS2 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILSUDS2))
312-255-6XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILSUDS2	N/A	Prefix Type: RBOC Switch Name: CHCG SUPERIOR DS2 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILSUDS2))
312-255-8XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILSUDS2	N/A	Prefix Type: RBOC Switch Name: CHCG SUPERIOR DS2 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILSUDS2))
312-255-9XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILSUDS2	N/A	Prefix Type: RBOC Switch Name: CHCG SUPERIOR DS2 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILSUDS2))
312-258	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILCLDS0	00/00/0000	Prefix Type: RBOC Switch Name: CHCG CANAL EAST DS0 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILCLDS0))
312-263	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILFRDS3	00/00/0000	Prefix Type: RBOC Switch Name: CHCG FRANKLIN DS3 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILFRDS3))
312-266	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILSUDS2	00/00/0000	Prefix Type: RBOC Switch Name: CHCG SUPERIOR DS2 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILSUDS2))
312-267	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILFRDS0	00/00/0000	Prefix Type: RBOC Switch Name: CHCG FRANKLIN DS0 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILFRDS0))
312-267 is split into 1,000-number blocks - detail below
312-267-3XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILFRDS0	N/A	Prefix Type: RBOC Switch Name: CHCG FRANKLIN DS0 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILFRDS0))
312-267-5XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILFRDS0	05/14/2002	Prefix Type: RBOC Switch Name: CHCG FRANKLIN DS0 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILFRDS0))
312-267-6XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILFRDS0	05/14/2002	Prefix Type: RBOC Switch Name: CHCG FRANKLIN DS0 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILFRDS0))
312-267-7XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILFRDS0	09/17/2001	Prefix Type: RBOC Switch Name: CHCG FRANKLIN DS0 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILFRDS0))
312-267-8XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILFRDS0	05/14/2002	Prefix Type: RBOC Switch Name: CHCG FRANKLIN DS0 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILFRDS0))
312-268 is split into 1,000-number blocks - detail below
312-268-3XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILSUDS2	08/02/2000	Prefix Type: RBOC Switch Name: CHCG SUPERIOR DS2 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILSUDS2))
312-269	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILFRDS3	00/00/0000	Prefix Type: RBOC Switch Name: CHCG FRANKLIN DS3 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILFRDS3))
312-274	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILSUDS2	00/00/0000	Prefix Type: RBOC Switch Name: CHCG SUPERIOR DS2 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILSUDS2))
312-278 is split into 1,000-number blocks - detail below
312-278-6XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILSUDS2	08/02/2000	Prefix Type: RBOC Switch Name: CHCG SUPERIOR DS2 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILSUDS2))
312-278-8XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILSUDS2	08/02/2000	Prefix Type: RBOC Switch Name: CHCG SUPERIOR DS2 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILSUDS2))
312-280	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILSUDS2	00/00/0000	Prefix Type: RBOC Switch Name: CHCG SUPERIOR DS2 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILSUDS2))
312-281 is split into 1,000-number blocks - detail below
312-281-3XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILFRDS4	06/27/2000	Prefix Type: RBOC Switch Name: CHCG FRANKLIN DS4 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILFRDS4))
312-291	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILWBDS2	00/00/0000	Prefix Type: RBOC Switch Name: CHCG WABASH DS2 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILWB55T 🔧 Explore Switch(CLLI: CHCGILWBDS2))
312-291 is split into 1,000-number blocks - detail below
312-291-0XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILWBDS2	N/A	Prefix Type: RBOC Switch Name: CHCG WABASH DS2 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILWB55T 🔧 Explore Switch(CLLI: CHCGILWBDS2))
312-292 is split into 1,000-number blocks - detail below
312-292-2XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILWBDS2	11/01/2011	Prefix Type: RBOC Switch Name: CHCG WABASH DS2 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILWB55T 🔧 Explore Switch(CLLI: CHCGILWBDS2))
312-292-3XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILWBDS2	11/01/2011	Prefix Type: RBOC Switch Name: CHCG WABASH DS2 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILWB55T 🔧 Explore Switch(CLLI: CHCGILWBDS2))
312-292-4XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILWBDS2	11/01/2011	Prefix Type: RBOC Switch Name: CHCG WABASH DS2 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILWB55T 🔧 Explore Switch(CLLI: CHCGILWBDS2))
312-293	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILWBDS2	00/00/0000	Prefix Type: RBOC Switch Name: CHCG WABASH DS2 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILWB55T 🔧 Explore Switch(CLLI: CHCGILWBDS2))
312-294	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILWBDS3	00/00/0000	Prefix Type: RBOC Switch Name: CHCG WABASH DS3 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILWB55T 🔧 Explore Switch(CLLI: CHCGILWBDS3))
312-297	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILLRDS0	00/00/0000	Prefix Type: RBOC Switch Name: CHCG LAKESHORE Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILLRDS0))
312-298 is split into 1,000-number blocks - detail below
312-298-2XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILFRDS3	05/24/2001	Prefix Type: RBOC Switch Name: CHCG FRANKLIN DS3 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILFRDS3))
312-298-3XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILFRDS3	05/24/2001	Prefix Type: RBOC Switch Name: CHCG FRANKLIN DS3 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILFRDS3))
312-298-4XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILFRDS3	05/24/2001	Prefix Type: RBOC Switch Name: CHCG FRANKLIN DS3 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILFRDS3))
312-298-5XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILFRDS3	05/24/2001	Prefix Type: RBOC Switch Name: CHCG FRANKLIN DS3 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILFRDS3))
312-298-6XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILFRDS3	05/24/2001	Prefix Type: RBOC Switch Name: CHCG FRANKLIN DS3 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILFRDS3))
312-298-7XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILFRDS3	05/24/2001	Prefix Type: RBOC Switch Name: CHCG FRANKLIN DS3 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILFRDS3))
312-298-8XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILFRDS3	05/24/2001	Prefix Type: RBOC Switch Name: CHCG FRANKLIN DS3 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILFRDS3))
312-302	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILSUDS2	00/00/0000	Prefix Type: RBOC Switch Name: CHCG SUPERIOR DS2 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILSUDS2))
312-306	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILSUDS2	00/00/0000	Prefix Type: RBOC Switch Name: CHCG SUPERIOR DS2 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILSUDS2))
312-308	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILCLDS3	00/00/0000	Prefix Type: RBOC Switch Name: CHCG CANAL EAST DS3 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILCLDS3))
312-309	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILFRDS1	00/00/0000	Prefix Type: RBOC Switch Name: CHCG FRANKLIN DS1 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILFRDS1))
312-321	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILIDDS0	00/00/0000	Prefix Type: RBOC Switch Name: CHCG ILL DEAR DS0 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILIDDS0))
312-322	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILWBDS3	00/00/0000	Prefix Type: RBOC Switch Name: CHCG WABASH DS3 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILWB55T 🔧 Explore Switch(CLLI: CHCGILWBDS3))
312-324 is split into 1,000-number blocks - detail below
312-324-1XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILFRDS3	05/14/2002	Prefix Type: RBOC Switch Name: CHCG FRANKLIN DS3 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILFRDS3))
312-324-2XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILFRDS3	05/14/2002	Prefix Type: RBOC Switch Name: CHCG FRANKLIN DS3 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILFRDS3))
312-324-8XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILFRDS3	05/14/2002	Prefix Type: RBOC Switch Name: CHCG FRANKLIN DS3 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILFRDS3))
312-324-9XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILFRDS3	05/14/2002	Prefix Type: RBOC Switch Name: CHCG FRANKLIN DS3 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILFRDS3))
312-325	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILFRDS0	06/24/2003	Prefix Type: RBOC Switch Name: CHCG FRANKLIN DS0 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILFRDS0))
312-325 is split into 1,000-number blocks - detail below
312-325-0XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILFRDS0	06/24/2003	Prefix Type: RBOC Switch Name: CHCG FRANKLIN DS0 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILFRDS0))
312-325-1XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILFRDS0	06/24/2003	Prefix Type: RBOC Switch Name: CHCG FRANKLIN DS0 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILFRDS0))
312-325-2XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILFRDS0	06/24/2003	Prefix Type: RBOC Switch Name: CHCG FRANKLIN DS0 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILFRDS0))
312-325-3XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILFRDS0	06/24/2003	Prefix Type: RBOC Switch Name: CHCG FRANKLIN DS0 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILFRDS0))
312-325-4XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILFRDS0	06/24/2003	Prefix Type: RBOC Switch Name: CHCG FRANKLIN DS0 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILFRDS0))
312-325-5XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILFRDS0	06/24/2003	Prefix Type: RBOC Switch Name: CHCG FRANKLIN DS0 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILFRDS0))
312-325-6XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILFRDS0	06/24/2003	Prefix Type: RBOC Switch Name: CHCG FRANKLIN DS0 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILFRDS0))
312-325-7XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILFRDS0	06/24/2003	Prefix Type: RBOC Switch Name: CHCG FRANKLIN DS0 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILFRDS0))
312-325-8XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILFRDS0	06/24/2003	Prefix Type: RBOC Switch Name: CHCG FRANKLIN DS0 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILFRDS0))
312-325-9XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILFRDS0	06/24/2003	Prefix Type: RBOC Switch Name: CHCG FRANKLIN DS0 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILFRDS0))
312-326	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILCADS0	00/00/0000	Prefix Type: RBOC Switch Name: CHCG CALUMET DS0 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILST55T 🔧 Explore Switch(CLLI: CHCGILCADS0))
312-328	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILCADS0	00/00/0000	Prefix Type: RBOC Switch Name: CHCG CALUMET DS0 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILST55T 🔧 Explore Switch(CLLI: CHCGILCADS0))
312-329	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILIDDS2	00/00/0000	Prefix Type: RBOC Switch Name: CHCG ILL DEAR DS2 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILIDDS2))
312-332	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILFRDS3	00/00/0000	Prefix Type: RBOC Switch Name: CHCG FRANKLIN DS3 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILFRDS3))
312-335	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILSUDS0	00/00/0000	Prefix Type: RBOC Switch Name: CHCG SUPERIOR DS0 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILSUDS0))
312-336	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILFRDS3	00/00/0000	Prefix Type: RBOC Switch Name: CHCG FRANKLIN DS3 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILFRDS3))
312-337	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILSUDS2	00/00/0000	Prefix Type: RBOC Switch Name: CHCG SUPERIOR DS2 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILSUDS2))
312-338	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILFRDS1	00/00/0000	Prefix Type: RBOC Switch Name: CHCG FRANKLIN DS1 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILFRDS1))
312-341	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILWBDS3	00/00/0000	Prefix Type: RBOC Switch Name: CHCG WABASH DS3 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILWB55T 🔧 Explore Switch(CLLI: CHCGILWBDS3))
312-344	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILWBDS3	00/00/0000	Prefix Type: RBOC Switch Name: CHCG WABASH DS3 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILWB55T 🔧 Explore Switch(CLLI: CHCGILWBDS3))
312-344 is split into 1,000-number blocks - detail below
312-344-4XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILWBDS3	N/A	Prefix Type: RBOC Switch Name: CHCG WABASH DS3 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILWB55T 🔧 Explore Switch(CLLI: CHCGILWBDS3))
312-344-5XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILWBDS3	N/A	Prefix Type: RBOC Switch Name: CHCG WABASH DS3 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILWB55T 🔧 Explore Switch(CLLI: CHCGILWBDS3))
312-344-6XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILWBDS3	N/A	Prefix Type: RBOC Switch Name: CHCG WABASH DS3 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILWB55T 🔧 Explore Switch(CLLI: CHCGILWBDS3))
312-344-7XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILWBDS3	N/A	Prefix Type: RBOC Switch Name: CHCG WABASH DS3 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILWB55T 🔧 Explore Switch(CLLI: CHCGILWBDS3))
312-344-8XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILWBDS3	N/A	Prefix Type: RBOC Switch Name: CHCG WABASH DS3 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILWB55T 🔧 Explore Switch(CLLI: CHCGILWBDS3))
312-344-9XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILWBDS3	N/A	Prefix Type: RBOC Switch Name: CHCG WABASH DS3 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILWB55T 🔧 Explore Switch(CLLI: CHCGILWBDS3))
312-345	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILFRDS3	00/00/0000	Prefix Type: RBOC Switch Name: CHCG FRANKLIN DS3 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILFRDS3))
312-346	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILFRDS4	00/00/0000	Prefix Type: RBOC Switch Name: CHCG FRANKLIN DS4 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILFRDS4))
312-347	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILWBDS3	00/00/0000	Prefix Type: RBOC Switch Name: CHCG WABASH DS3 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILWB55T 🔧 Explore Switch(CLLI: CHCGILWBDS3))
312-353	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILWBDS0	00/00/0000	Prefix Type: RBOC Switch Name: CHCG WABASH DS0 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILWB55T 🔧 Explore Switch(CLLI: CHCGILWBDS0))
312-355	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILMODS1	00/00/0000	Prefix Type: RBOC Switch Name: CHCG MONROE DS1 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILST55T 🔧 Explore Switch(CLLI: CHCGILMODS1))
312-356	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILWBDS3	00/00/0000	Prefix Type: RBOC Switch Name: CHCG WABASH DS3 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILWB55T 🔧 Explore Switch(CLLI: CHCGILWBDS3))
312-357	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILFRDS0	00/00/0000	Prefix Type: RBOC Switch Name: CHCG FRANKLIN DS0 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILFRDS0))
312-360	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILWBDS2	00/00/0000	Prefix Type: RBOC Switch Name: CHCG WABASH DS2 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILWB55T 🔧 Explore Switch(CLLI: CHCGILWBDS2))
312-361	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILMODS1	00/00/0000	Prefix Type: RBOC Switch Name: CHCG MONROE DS1 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILST55T 🔧 Explore Switch(CLLI: CHCGILMODS1))
312-361 is split into 1,000-number blocks - detail below
312-361-2XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILMODS1	N/A	Prefix Type: RBOC Switch Name: CHCG MONROE DS1 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILST55T 🔧 Explore Switch(CLLI: CHCGILMODS1))
312-361-6XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILMODS1	N/A	Prefix Type: RBOC Switch Name: CHCG MONROE DS1 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILST55T 🔧 Explore Switch(CLLI: CHCGILMODS1))
312-362	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILWBDS0	00/00/0000	Prefix Type: RBOC Switch Name: CHCG WABASH DS0 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILWB55T 🔧 Explore Switch(CLLI: CHCGILWBDS0))
312-364	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILFRDS4	00/00/0000	Prefix Type: RBOC Switch Name: CHCG FRANKLIN DS4 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILFRDS4))
312-368	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILFRDS0	00/00/0000	Prefix Type: RBOC Switch Name: CHCG FRANKLIN DS0 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILFRDS0))
312-369 is split into 1,000-number blocks - detail below
312-369-1XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILWBDS3	04/08/2008	Prefix Type: RBOC Switch Name: CHCG WABASH DS3 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILWB55T 🔧 Explore Switch(CLLI: CHCGILWBDS3))
312-369-2XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILWBDS3	04/08/2008	Prefix Type: RBOC Switch Name: CHCG WABASH DS3 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILWB55T 🔧 Explore Switch(CLLI: CHCGILWBDS3))
312-369-3XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILWBDS3	04/08/2008	Prefix Type: RBOC Switch Name: CHCG WABASH DS3 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILWB55T 🔧 Explore Switch(CLLI: CHCGILWBDS3))
312-369-4XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILWBDS3	04/08/2008	Prefix Type: RBOC Switch Name: CHCG WABASH DS3 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILWB55T 🔧 Explore Switch(CLLI: CHCGILWBDS3))
312-369-5XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILWBDS3	04/08/2008	Prefix Type: RBOC Switch Name: CHCG WABASH DS3 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILWB55T 🔧 Explore Switch(CLLI: CHCGILWBDS3))
312-369-6XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILWBDS3	04/08/2008	Prefix Type: RBOC Switch Name: CHCG WABASH DS3 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILWB55T 🔧 Explore Switch(CLLI: CHCGILWBDS3))
312-369-7XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILWBDS3	04/08/2008	Prefix Type: RBOC Switch Name: CHCG WABASH DS3 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILWB55T 🔧 Explore Switch(CLLI: CHCGILWBDS3))
312-369-8XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILWBDS3	04/08/2008	Prefix Type: RBOC Switch Name: CHCG WABASH DS3 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILWB55T 🔧 Explore Switch(CLLI: CHCGILWBDS3))
312-372	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILFRDS4	00/00/0000	Prefix Type: RBOC Switch Name: CHCG FRANKLIN DS4 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILFRDS4))
312-374	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILLRDS0	00/00/0000	Prefix Type: RBOC Switch Name: CHCG LAKESHORE Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILLRDS0))
312-374 is split into 1,000-number blocks - detail below
312-374-0XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILLRDS0	N/A	Prefix Type: RBOC Switch Name: CHCG LAKESHORE Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILLRDS0))
312-374-7XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILLRDS0	N/A	Prefix Type: RBOC Switch Name: CHCG LAKESHORE Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILLRDS0))
312-374-9XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILLRDS0	N/A	Prefix Type: RBOC Switch Name: CHCG LAKESHORE Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILLRDS0))
312-379 is split into 1,000-number blocks - detail below
312-379-1XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILIDDS2	05/14/2002	Prefix Type: RBOC Switch Name: CHCG ILL DEAR DS2 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILIDDS2))
312-379-4XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILIDDS0	03/05/2000	Prefix Type: RBOC Switch Name: CHCG ILL DEAR DS0 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILIDDS0))
312-379-6XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILIDDS0	03/05/2000	Prefix Type: RBOC Switch Name: CHCG ILL DEAR DS0 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILIDDS0))
312-379-7XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILIDDS0	03/05/2000	Prefix Type: RBOC Switch Name: CHCG ILL DEAR DS0 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILIDDS0))
312-380	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILCLDS3	00/00/0000	Prefix Type: RBOC Switch Name: CHCG CANAL EAST DS3 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILCLDS3))
312-380 is split into 1,000-number blocks - detail below
312-380-3XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILCLDS3	N/A	Prefix Type: RBOC Switch Name: CHCG CANAL EAST DS3 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILCLDS3))
312-380-8XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILCLDS3	N/A	Prefix Type: RBOC Switch Name: CHCG CANAL EAST DS3 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILCLDS3))
312-381	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILFRDS3	00/00/0000	Prefix Type: RBOC Switch Name: CHCG FRANKLIN DS3 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILFRDS3))
312-381 is split into 1,000-number blocks - detail below
312-381-0XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILFRDS3	N/A	Prefix Type: RBOC Switch Name: CHCG FRANKLIN DS3 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILFRDS3))
312-381-1XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILFRDS3	N/A	Prefix Type: RBOC Switch Name: CHCG FRANKLIN DS3 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILFRDS3))
312-381-2XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILFRDS3	N/A	Prefix Type: RBOC Switch Name: CHCG FRANKLIN DS3 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILFRDS3))
312-381-3XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILFRDS3	N/A	Prefix Type: RBOC Switch Name: CHCG FRANKLIN DS3 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILFRDS3))
312-381-4XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILFRDS3	N/A	Prefix Type: RBOC Switch Name: CHCG FRANKLIN DS3 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILFRDS3))
312-381-5XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILFRDS3	N/A	Prefix Type: RBOC Switch Name: CHCG FRANKLIN DS3 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILFRDS3))
312-381-6XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILFRDS3	N/A	Prefix Type: RBOC Switch Name: CHCG FRANKLIN DS3 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILFRDS3))
312-381-7XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILFRDS3	N/A	Prefix Type: RBOC Switch Name: CHCG FRANKLIN DS3 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILFRDS3))
312-381-9XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILFRDS3	N/A	Prefix Type: RBOC Switch Name: CHCG FRANKLIN DS3 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILFRDS3))
312-382	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILCLDS3	00/00/0000	Prefix Type: RBOC Switch Name: CHCG CANAL EAST DS3 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILCLDS3))
312-384	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILFRDS1	00/00/0000	Prefix Type: RBOC Switch Name: CHCG FRANKLIN DS1 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILFRDS1))
312-384 is split into 1,000-number blocks - detail below
312-384-1XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILFRDS1	N/A	Prefix Type: RBOC Switch Name: CHCG FRANKLIN DS1 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILFRDS1))
312-384-2XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILFRDS1	N/A	Prefix Type: RBOC Switch Name: CHCG FRANKLIN DS1 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILFRDS1))
312-384-3XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILFRDS1	N/A	Prefix Type: RBOC Switch Name: CHCG FRANKLIN DS1 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILFRDS1))
312-384-4XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILFRDS1	N/A	Prefix Type: RBOC Switch Name: CHCG FRANKLIN DS1 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILFRDS1))
312-384-5XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILFRDS1	N/A	Prefix Type: RBOC Switch Name: CHCG FRANKLIN DS1 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILFRDS1))
312-384-6XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILFRDS1	N/A	Prefix Type: RBOC Switch Name: CHCG FRANKLIN DS1 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILFRDS1))
312-384-7XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILFRDS1	N/A	Prefix Type: RBOC Switch Name: CHCG FRANKLIN DS1 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILFRDS1))
312-384-8XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILFRDS1	N/A	Prefix Type: RBOC Switch Name: CHCG FRANKLIN DS1 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILFRDS1))
312-385	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILWBDS0	00/00/0000	Prefix Type: RBOC Switch Name: CHCG WABASH DS0 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILWB55T 🔧 Explore Switch(CLLI: CHCGILWBDS0))
312-385 is split into 1,000-number blocks - detail below
312-385-1XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILWBDS0	N/A	Prefix Type: RBOC Switch Name: CHCG WABASH DS0 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILWB55T 🔧 Explore Switch(CLLI: CHCGILWBDS0))
312-385-2XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILWBDS0	N/A	Prefix Type: RBOC Switch Name: CHCG WABASH DS0 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILWB55T 🔧 Explore Switch(CLLI: CHCGILWBDS0))
312-385-3XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILWBDS0	N/A	Prefix Type: RBOC Switch Name: CHCG WABASH DS0 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILWB55T 🔧 Explore Switch(CLLI: CHCGILWBDS0))
312-385-4XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILWBDS0	N/A	Prefix Type: RBOC Switch Name: CHCG WABASH DS0 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILWB55T 🔧 Explore Switch(CLLI: CHCGILWBDS0))
312-385-5XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILWBDS0	N/A	Prefix Type: RBOC Switch Name: CHCG WABASH DS0 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILWB55T 🔧 Explore Switch(CLLI: CHCGILWBDS0))
312-385-7XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILWBDS0	N/A	Prefix Type: RBOC Switch Name: CHCG WABASH DS0 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILWB55T 🔧 Explore Switch(CLLI: CHCGILWBDS0))
312-385-8XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILWBDS0	N/A	Prefix Type: RBOC Switch Name: CHCG WABASH DS0 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILWB55T 🔧 Explore Switch(CLLI: CHCGILWBDS0))
312-386	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILWBDS2	00/00/0000	Prefix Type: RBOC Switch Name: CHCG WABASH DS2 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILWB55T 🔧 Explore Switch(CLLI: CHCGILWBDS2))
312-386 is split into 1,000-number blocks - detail below
312-386-1XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILWBDS2	N/A	Prefix Type: RBOC Switch Name: CHCG WABASH DS2 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILWB55T 🔧 Explore Switch(CLLI: CHCGILWBDS2))
312-386-2XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILWBDS2	N/A	Prefix Type: RBOC Switch Name: CHCG WABASH DS2 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILWB55T 🔧 Explore Switch(CLLI: CHCGILWBDS2))
312-386-3XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILWBDS2	N/A	Prefix Type: RBOC Switch Name: CHCG WABASH DS2 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILWB55T 🔧 Explore Switch(CLLI: CHCGILWBDS2))
312-386-4XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILWBDS2	N/A	Prefix Type: RBOC Switch Name: CHCG WABASH DS2 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILWB55T 🔧 Explore Switch(CLLI: CHCGILWBDS2))
312-386-9XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILWBDS2	N/A	Prefix Type: RBOC Switch Name: CHCG WABASH DS2 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILWB55T 🔧 Explore Switch(CLLI: CHCGILWBDS2))
312-394	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILFRDS1	00/00/0000	Prefix Type: RBOC Switch Name: CHCG FRANKLIN DS1 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILFRDS1))
312-394 is split into 1,000-number blocks - detail below
312-394-1XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILFRDS1	N/A	Prefix Type: RBOC Switch Name: CHCG FRANKLIN DS1 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILFRDS1))
312-394-2XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILFRDS1	N/A	Prefix Type: RBOC Switch Name: CHCG FRANKLIN DS1 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILFRDS1))
312-394-3XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILFRDS1	N/A	Prefix Type: RBOC Switch Name: CHCG FRANKLIN DS1 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILFRDS1))
312-394-4XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILFRDS1	N/A	Prefix Type: RBOC Switch Name: CHCG FRANKLIN DS1 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILFRDS1))
312-394-5XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILFRDS1	N/A	Prefix Type: RBOC Switch Name: CHCG FRANKLIN DS1 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILFRDS1))
312-394-6XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILFRDS1	N/A	Prefix Type: RBOC Switch Name: CHCG FRANKLIN DS1 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILFRDS1))
312-394-7XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILFRDS1	N/A	Prefix Type: RBOC Switch Name: CHCG FRANKLIN DS1 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILFRDS1))
312-394-8XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILFRDS1	N/A	Prefix Type: RBOC Switch Name: CHCG FRANKLIN DS1 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILFRDS1))
312-395 is split into 1,000-number blocks - detail below
312-395-1XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILFRDS0	05/06/2003	Prefix Type: RBOC Switch Name: CHCG FRANKLIN DS0 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILFRDS0))
312-395-2XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILFRDS0	12/23/2002	Prefix Type: RBOC Switch Name: CHCG FRANKLIN DS0 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILFRDS0))
312-395-3XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILFRDS0	12/23/2002	Prefix Type: RBOC Switch Name: CHCG FRANKLIN DS0 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILFRDS0))
312-395-4XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILFRDS0	12/23/2002	Prefix Type: RBOC Switch Name: CHCG FRANKLIN DS0 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILFRDS0))
312-396	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILIDDS0	00/00/0000	Prefix Type: RBOC Switch Name: CHCG ILL DEAR DS0 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILIDDS0))
312-397	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILSUDS2	00/00/0000	Prefix Type: RBOC Switch Name: CHCG SUPERIOR DS2 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILSUDS2))
312-407	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILFRDS3	00/00/0000	Prefix Type: RBOC Switch Name: CHCG FRANKLIN DS3 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILFRDS3))
312-408	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILWBDS0	00/00/0000	Prefix Type: RBOC Switch Name: CHCG WABASH DS0 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILWB55T 🔧 Explore Switch(CLLI: CHCGILWBDS0))
312-409	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILFRDS1	00/00/0000	Prefix Type: RBOC Switch Name: CHCG FRANKLIN DS1 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILFRDS1))
312-409 is split into 1,000-number blocks - detail below
312-409-6XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILFRDS1	N/A	Prefix Type: RBOC Switch Name: CHCG FRANKLIN DS1 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILFRDS1))
312-410	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILIDDS2	00/00/0000	Prefix Type: RBOC Switch Name: CHCG ILL DEAR DS2 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILIDDS2))
312-413	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILMODS1	00/00/0000	Prefix Type: RBOC Switch Name: CHCG MONROE DS1 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILST55T 🔧 Explore Switch(CLLI: CHCGILMODS1))
312-417	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILSUDS0	00/00/0000	Prefix Type: RBOC Switch Name: CHCG SUPERIOR DS0 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILSUDS0))
312-419	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILFRDS3	00/00/0000	Prefix Type: RBOC Switch Name: CHCG FRANKLIN DS3 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILFRDS3))
312-421	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILMODS0	00/00/0000	Prefix Type: RBOC Switch Name: CHCG MONROE DS0 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILST55T 🔧 Explore Switch(CLLI: CHCGILMODS0))
312-422	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILFRDS3	00/00/0000	Prefix Type: RBOC Switch Name: CHCG FRANKLIN DS3 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILFRDS3))
312-424	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILFRDS1	00/00/0000	Prefix Type: RBOC Switch Name: CHCG FRANKLIN DS1 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILFRDS1))
312-425	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILFRDS3	00/00/0000	Prefix Type: RBOC Switch Name: CHCG FRANKLIN DS3 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILFRDS3))
312-427	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILWBDS0	00/00/0000	Prefix Type: RBOC Switch Name: CHCG WABASH DS0 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILWB55T 🔧 Explore Switch(CLLI: CHCGILWBDS0))
312-429 is split into 1,000-number blocks - detail below
312-429-3XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILFRDS3	05/14/2002	Prefix Type: RBOC Switch Name: CHCG FRANKLIN DS3 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILFRDS3))
312-430	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILCLDS3	00/00/0000	Prefix Type: RBOC Switch Name: CHCG CANAL EAST DS3 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILCLDS3))
312-431	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILWBDS3	00/00/0000	Prefix Type: RBOC Switch Name: CHCG WABASH DS3 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILWB55T 🔧 Explore Switch(CLLI: CHCGILWBDS3))
312-432	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILMODS1	00/00/0000	Prefix Type: RBOC Switch Name: CHCG MONROE DS1 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILST55T 🔧 Explore Switch(CLLI: CHCGILMODS1))
312-433	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILMODS0	00/00/0000	Prefix Type: RBOC Switch Name: CHCG MONROE DS0 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILST55T 🔧 Explore Switch(CLLI: CHCGILMODS0))
312-433 is split into 1,000-number blocks - detail below
312-433-0XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILMODS0	N/A	Prefix Type: RBOC Switch Name: CHCG MONROE DS0 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILST55T 🔧 Explore Switch(CLLI: CHCGILMODS0))
312-433-1XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILMODS0	N/A	Prefix Type: RBOC Switch Name: CHCG MONROE DS0 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILST55T 🔧 Explore Switch(CLLI: CHCGILMODS0))
312-433-2XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILMODS0	N/A	Prefix Type: RBOC Switch Name: CHCG MONROE DS0 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILST55T 🔧 Explore Switch(CLLI: CHCGILMODS0))
312-433-3XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILMODS0	N/A	Prefix Type: RBOC Switch Name: CHCG MONROE DS0 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILST55T 🔧 Explore Switch(CLLI: CHCGILMODS0))
312-433-4XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILMODS0	N/A	Prefix Type: RBOC Switch Name: CHCG MONROE DS0 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILST55T 🔧 Explore Switch(CLLI: CHCGILMODS0))
312-433-5XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILMODS0	N/A	Prefix Type: RBOC Switch Name: CHCG MONROE DS0 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILST55T 🔧 Explore Switch(CLLI: CHCGILMODS0))
312-433-6XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILMODS0	N/A	Prefix Type: RBOC Switch Name: CHCG MONROE DS0 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILST55T 🔧 Explore Switch(CLLI: CHCGILMODS0))
312-433-7XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILMODS0	N/A	Prefix Type: RBOC Switch Name: CHCG MONROE DS0 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILST55T 🔧 Explore Switch(CLLI: CHCGILMODS0))
312-433-8XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILMODS0	N/A	Prefix Type: RBOC Switch Name: CHCG MONROE DS0 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILST55T 🔧 Explore Switch(CLLI: CHCGILMODS0))
312-435	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILWBDS0	00/00/0000	Prefix Type: RBOC Switch Name: CHCG WABASH DS0 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILWB55T 🔧 Explore Switch(CLLI: CHCGILWBDS0))
312-436	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILCLDS3	00/00/0000	Prefix Type: RBOC Switch Name: CHCG CANAL EAST DS3 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILCLDS3))
312-436 is split into 1,000-number blocks - detail below
312-436-3XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILCLDS3	N/A	Prefix Type: RBOC Switch Name: CHCG CANAL EAST DS3 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILCLDS3))
312-436-4XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILCLDS3	N/A	Prefix Type: RBOC Switch Name: CHCG CANAL EAST DS3 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILCLDS3))
312-436-5XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILCLDS3	N/A	Prefix Type: RBOC Switch Name: CHCG CANAL EAST DS3 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILCLDS3))
312-436-6XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILCLDS3	N/A	Prefix Type: RBOC Switch Name: CHCG CANAL EAST DS3 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILCLDS3))
312-436-7XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILCLDS3	N/A	Prefix Type: RBOC Switch Name: CHCG CANAL EAST DS3 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILCLDS3))
312-436-8XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILCLDS3	N/A	Prefix Type: RBOC Switch Name: CHCG CANAL EAST DS3 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILCLDS3))
312-436-9XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILCLDS3	N/A	Prefix Type: RBOC Switch Name: CHCG CANAL EAST DS3 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILCLDS3))
312-440	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILSUDS0	00/00/0000	Prefix Type: RBOC Switch Name: CHCG SUPERIOR DS0 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILSUDS0))
312-441	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILCLDS0	00/00/0000	Prefix Type: RBOC Switch Name: CHCG CANAL EAST DS0 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILCLDS0))
312-442	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILFRDS6	00/00/0000	Prefix Type: RBOC Switch Name: CHCG FRANKLIN DS6 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILFRDS6))
312-442 is split into 1,000-number blocks - detail below
312-442-1XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILFRDS6	N/A	Prefix Type: RBOC Switch Name: CHCG FRANKLIN DS6 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILFRDS6))
312-442-3XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILFRDS6	N/A	Prefix Type: RBOC Switch Name: CHCG FRANKLIN DS6 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILFRDS6))
312-442-4XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILFRDS6	N/A	Prefix Type: RBOC Switch Name: CHCG FRANKLIN DS6 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILFRDS6))
312-442-5XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILFRDS6	N/A	Prefix Type: RBOC Switch Name: CHCG FRANKLIN DS6 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILFRDS6))
312-442-6XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILFRDS6	N/A	Prefix Type: RBOC Switch Name: CHCG FRANKLIN DS6 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILFRDS6))
312-442-7XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILFRDS6	N/A	Prefix Type: RBOC Switch Name: CHCG FRANKLIN DS6 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILFRDS6))
312-442-8XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILFRDS6	N/A	Prefix Type: RBOC Switch Name: CHCG FRANKLIN DS6 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILFRDS6))
312-442-9XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILFRDS6	N/A	Prefix Type: RBOC Switch Name: CHCG FRANKLIN DS6 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILFRDS6))
312-443	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILFRDS0	00/00/0000	Prefix Type: RBOC Switch Name: CHCG FRANKLIN DS0 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILFRDS0))
312-443 is split into 1,000-number blocks - detail below
312-443-0XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILFRDS0	N/A	Prefix Type: RBOC Switch Name: CHCG FRANKLIN DS0 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILFRDS0))
312-443-1XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILFRDS0	N/A	Prefix Type: RBOC Switch Name: CHCG FRANKLIN DS0 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILFRDS0))
312-443-3XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILFRDS0	N/A	Prefix Type: RBOC Switch Name: CHCG FRANKLIN DS0 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILFRDS0))
312-443-4XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILFRDS0	N/A	Prefix Type: RBOC Switch Name: CHCG FRANKLIN DS0 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILFRDS0))
312-443-5XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILFRDS0	N/A	Prefix Type: RBOC Switch Name: CHCG FRANKLIN DS0 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILFRDS0))
312-443-6XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILFRDS0	N/A	Prefix Type: RBOC Switch Name: CHCG FRANKLIN DS0 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILFRDS0))
312-443-7XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILFRDS0	N/A	Prefix Type: RBOC Switch Name: CHCG FRANKLIN DS0 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILFRDS0))
312-443-8XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILFRDS0	N/A	Prefix Type: RBOC Switch Name: CHCG FRANKLIN DS0 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILFRDS0))
312-443-9XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILFRDS0	N/A	Prefix Type: RBOC Switch Name: CHCG FRANKLIN DS0 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILFRDS0))
312-444	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILFRDS0	00/00/0000	Prefix Type: RBOC Switch Name: CHCG FRANKLIN DS0 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILFRDS0))
312-444 is split into 1,000-number blocks - detail below
312-444-1XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILFRDS0	N/A	Prefix Type: RBOC Switch Name: CHCG FRANKLIN DS0 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILFRDS0))
312-444-2XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILFRDS0	N/A	Prefix Type: RBOC Switch Name: CHCG FRANKLIN DS0 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILFRDS0))
312-444-3XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILFRDS0	N/A	Prefix Type: RBOC Switch Name: CHCG FRANKLIN DS0 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILFRDS0))
312-444-4XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILFRDS0	N/A	Prefix Type: RBOC Switch Name: CHCG FRANKLIN DS0 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILFRDS0))
312-444-5XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILFRDS0	N/A	Prefix Type: RBOC Switch Name: CHCG FRANKLIN DS0 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILFRDS0))
312-444-6XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILFRDS0	N/A	Prefix Type: RBOC Switch Name: CHCG FRANKLIN DS0 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILFRDS0))
312-444-7XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILFRDS0	N/A	Prefix Type: RBOC Switch Name: CHCG FRANKLIN DS0 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILFRDS0))
312-444-9XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILFRDS0	N/A	Prefix Type: RBOC Switch Name: CHCG FRANKLIN DS0 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILFRDS0))
312-445	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILSUDS2	00/00/0000	Prefix Type: RBOC Switch Name: CHCG SUPERIOR DS2 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILSUDS2))
312-447	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILWBDS2	00/00/0000	Prefix Type: RBOC Switch Name: CHCG WABASH DS2 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILWB55T 🔧 Explore Switch(CLLI: CHCGILWBDS2))
312-447 is split into 1,000-number blocks - detail below
312-447-0XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILWBDS2	N/A	Prefix Type: RBOC Switch Name: CHCG WABASH DS2 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILWB55T 🔧 Explore Switch(CLLI: CHCGILWBDS2))
312-454	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILCLDS3	00/00/0000	Prefix Type: RBOC Switch Name: CHCG CANAL EAST DS3 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILCLDS3))
312-455	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILMODS1	00/00/0000	Prefix Type: RBOC Switch Name: CHCG MONROE DS1 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILST55T 🔧 Explore Switch(CLLI: CHCGILMODS1))
312-456	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILFRDS4	00/00/0000	Prefix Type: RBOC Switch Name: CHCG FRANKLIN DS4 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILFRDS4))
312-458	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILFRDS1	00/00/0000	Prefix Type: RBOC Switch Name: CHCG FRANKLIN DS1 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILFRDS1))
312-458 is split into 1,000-number blocks - detail below
312-458-0XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILFRDS1	N/A	Prefix Type: RBOC Switch Name: CHCG FRANKLIN DS1 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILFRDS1))
312-458-1XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILFRDS1	N/A	Prefix Type: RBOC Switch Name: CHCG FRANKLIN DS1 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILFRDS1))
312-458-2XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILFRDS1	N/A	Prefix Type: RBOC Switch Name: CHCG FRANKLIN DS1 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILFRDS1))
312-458-3XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILFRDS1	N/A	Prefix Type: RBOC Switch Name: CHCG FRANKLIN DS1 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILFRDS1))
312-458-4XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILFRDS1	N/A	Prefix Type: RBOC Switch Name: CHCG FRANKLIN DS1 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILFRDS1))
312-458-6XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILFRDS1	N/A	Prefix Type: RBOC Switch Name: CHCG FRANKLIN DS1 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILFRDS1))
312-458-7XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILFRDS1	N/A	Prefix Type: RBOC Switch Name: CHCG FRANKLIN DS1 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILFRDS1))
312-458-8XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILFRDS1	N/A	Prefix Type: RBOC Switch Name: CHCG FRANKLIN DS1 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILFRDS1))
312-458-9XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILFRDS1	N/A	Prefix Type: RBOC Switch Name: CHCG FRANKLIN DS1 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILFRDS1))
312-460	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILFRDS3	00/00/0000	Prefix Type: RBOC Switch Name: CHCG FRANKLIN DS3 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILFRDS3))
312-460 is split into 1,000-number blocks - detail below
312-460-0XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILFRDS3	N/A	Prefix Type: RBOC Switch Name: CHCG FRANKLIN DS3 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILFRDS3))
312-460-1XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILFRDS3	N/A	Prefix Type: RBOC Switch Name: CHCG FRANKLIN DS3 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILFRDS3))
312-460-2XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILFRDS3	N/A	Prefix Type: RBOC Switch Name: CHCG FRANKLIN DS3 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILFRDS3))
312-460-4XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILFRDS3	N/A	Prefix Type: RBOC Switch Name: CHCG FRANKLIN DS3 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILFRDS3))
312-460-5XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILFRDS3	09/19/2005	Prefix Type: RBOC Switch Name: CHCG FRANKLIN DS3 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILFRDS3))
312-460-6XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILFRDS3	09/19/2005	Prefix Type: RBOC Switch Name: CHCG FRANKLIN DS3 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILFRDS3))
312-460-7XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILFRDS3	09/19/2005	Prefix Type: RBOC Switch Name: CHCG FRANKLIN DS3 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILFRDS3))
312-460-8XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILFRDS3	N/A	Prefix Type: RBOC Switch Name: CHCG FRANKLIN DS3 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILFRDS3))
312-460-9XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILFRDS3	N/A	Prefix Type: RBOC Switch Name: CHCG FRANKLIN DS3 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILFRDS3))
312-461	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILWBDS2	00/00/0000	Prefix Type: RBOC Switch Name: CHCG WABASH DS2 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILWB55T 🔧 Explore Switch(CLLI: CHCGILWBDS2))
312-462	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILFRDS4	00/00/0000	Prefix Type: RBOC Switch Name: CHCG FRANKLIN DS4 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILFRDS4))
312-462 is split into 1,000-number blocks - detail below
312-462-2XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILFRDS4	N/A	Prefix Type: RBOC Switch Name: CHCG FRANKLIN DS4 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILFRDS4))
312-462-5XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILFRDS4	N/A	Prefix Type: RBOC Switch Name: CHCG FRANKLIN DS4 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILFRDS4))
312-462-6XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILFRDS4	N/A	Prefix Type: RBOC Switch Name: CHCG FRANKLIN DS4 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILFRDS4))
312-462-7XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILFRDS4	N/A	Prefix Type: RBOC Switch Name: CHCG FRANKLIN DS4 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILFRDS4))
312-462-8XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILFRDS4	N/A	Prefix Type: RBOC Switch Name: CHCG FRANKLIN DS4 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILFRDS4))
312-463	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILCLDS0	00/00/0000	Prefix Type: RBOC Switch Name: CHCG CANAL EAST DS0 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILCLDS0))
312-463 is split into 1,000-number blocks - detail below
312-463-1XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILCLDS0	N/A	Prefix Type: RBOC Switch Name: CHCG CANAL EAST DS0 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILCLDS0))
312-463-2XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILCLDS0	N/A	Prefix Type: RBOC Switch Name: CHCG CANAL EAST DS0 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILCLDS0))
312-463-3XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILCLDS0	N/A	Prefix Type: RBOC Switch Name: CHCG CANAL EAST DS0 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILCLDS0))
312-463-5XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILCLDS0	N/A	Prefix Type: RBOC Switch Name: CHCG CANAL EAST DS0 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILCLDS0))
312-463-6XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILCLDS0	N/A	Prefix Type: RBOC Switch Name: CHCG CANAL EAST DS0 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILCLDS0))
312-463-7XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILCLDS0	N/A	Prefix Type: RBOC Switch Name: CHCG CANAL EAST DS0 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILCLDS0))
312-463-8XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILCLDS0	N/A	Prefix Type: RBOC Switch Name: CHCG CANAL EAST DS0 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILCLDS0))
312-464	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILIDDS0	00/00/0000	Prefix Type: RBOC Switch Name: CHCG ILL DEAR DS0 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILIDDS0))
312-466	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILCLDS3	00/00/0000	Prefix Type: RBOC Switch Name: CHCG CANAL EAST DS3 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILCLDS3))
312-467	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILIDDS2	00/00/0000	Prefix Type: RBOC Switch Name: CHCG ILL DEAR DS2 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILIDDS2))
312-469	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILSUDS2	00/00/0000	Prefix Type: RBOC Switch Name: CHCG SUPERIOR DS2 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILSUDS2))
312-469 is split into 1,000-number blocks - detail below
312-469-2XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILSUDS2	N/A	Prefix Type: RBOC Switch Name: CHCG SUPERIOR DS2 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILSUDS2))
312-469-4XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILSUDS2	N/A	Prefix Type: RBOC Switch Name: CHCG SUPERIOR DS2 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILSUDS2))
312-472	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILLRDS0	10/27/2005	Prefix Type: RBOC Switch Name: CHCG LAKESHORE Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILLRDS0))
312-472 is split into 1,000-number blocks - detail below
312-472-0XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILLRDS0	11/03/2005	Prefix Type: RBOC Switch Name: CHCG LAKESHORE Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILLRDS0))
312-472-1XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILLRDS0	11/03/2005	Prefix Type: RBOC Switch Name: CHCG LAKESHORE Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILLRDS0))
312-472-2XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILLRDS0	11/03/2005	Prefix Type: RBOC Switch Name: CHCG LAKESHORE Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILLRDS0))
312-472-3XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILLRDS0	11/03/2005	Prefix Type: RBOC Switch Name: CHCG LAKESHORE Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILLRDS0))
312-472-4XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILLRDS0	11/03/2005	Prefix Type: RBOC Switch Name: CHCG LAKESHORE Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILLRDS0))
312-472-5XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILLRDS0	11/03/2005	Prefix Type: RBOC Switch Name: CHCG LAKESHORE Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILLRDS0))
312-472-6XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILLRDS0	11/03/2005	Prefix Type: RBOC Switch Name: CHCG LAKESHORE Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILLRDS0))
312-472-7XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILLRDS0	11/03/2005	Prefix Type: RBOC Switch Name: CHCG LAKESHORE Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILLRDS0))
312-472-8XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILLRDS0	11/03/2005	Prefix Type: RBOC Switch Name: CHCG LAKESHORE Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILLRDS0))
312-472-9XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILLRDS0	11/03/2005	Prefix Type: RBOC Switch Name: CHCG LAKESHORE Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILLRDS0))
312-474	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILCLDS0	00/00/0000	Prefix Type: RBOC Switch Name: CHCG CANAL EAST DS0 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILCLDS0))
312-475	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILSUDS2	00/00/0000	Prefix Type: RBOC Switch Name: CHCG SUPERIOR DS2 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILSUDS2))
312-476 is split into 1,000-number blocks - detail below
312-476-5XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILFRDS4	05/14/2002	Prefix Type: RBOC Switch Name: CHCG FRANKLIN DS4 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILFRDS4))
312-476-6XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILFRDS4	05/14/2002	Prefix Type: RBOC Switch Name: CHCG FRANKLIN DS4 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILFRDS4))
312-476-7XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILFRDS4	05/14/2002	Prefix Type: RBOC Switch Name: CHCG FRANKLIN DS4 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILFRDS4))
312-482	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILSUDS2	00/00/0000	Prefix Type: RBOC Switch Name: CHCG SUPERIOR DS2 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILSUDS2))
312-491	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILMODS0	00/00/0000	Prefix Type: RBOC Switch Name: CHCG MONROE DS0 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILST55T 🔧 Explore Switch(CLLI: CHCGILMODS0))
312-492	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILMODS1	00/00/0000	Prefix Type: RBOC Switch Name: CHCG MONROE DS1 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILST55T 🔧 Explore Switch(CLLI: CHCGILMODS1))
312-492 is split into 1,000-number blocks - detail below
312-492-0XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILMODS1	N/A	Prefix Type: RBOC Switch Name: CHCG MONROE DS1 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILST55T 🔧 Explore Switch(CLLI: CHCGILMODS1))
312-492-1XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILMODS1	N/A	Prefix Type: RBOC Switch Name: CHCG MONROE DS1 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILST55T 🔧 Explore Switch(CLLI: CHCGILMODS1))
312-492-2XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILMODS1	N/A	Prefix Type: RBOC Switch Name: CHCG MONROE DS1 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILST55T 🔧 Explore Switch(CLLI: CHCGILMODS1))
312-492-3XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILMODS1	N/A	Prefix Type: RBOC Switch Name: CHCG MONROE DS1 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILST55T 🔧 Explore Switch(CLLI: CHCGILMODS1))
312-492-5XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILMODS1	N/A	Prefix Type: RBOC Switch Name: CHCG MONROE DS1 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILST55T 🔧 Explore Switch(CLLI: CHCGILMODS1))
312-492-6XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILMODS1	N/A	Prefix Type: RBOC Switch Name: CHCG MONROE DS1 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILST55T 🔧 Explore Switch(CLLI: CHCGILMODS1))
312-492-7XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILMODS1	N/A	Prefix Type: RBOC Switch Name: CHCG MONROE DS1 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILST55T 🔧 Explore Switch(CLLI: CHCGILMODS1))
312-492-8XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILMODS1	N/A	Prefix Type: RBOC Switch Name: CHCG MONROE DS1 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILST55T 🔧 Explore Switch(CLLI: CHCGILMODS1))
312-492-9XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILMODS1	N/A	Prefix Type: RBOC Switch Name: CHCG MONROE DS1 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILST55T 🔧 Explore Switch(CLLI: CHCGILMODS1))
312-494	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILIDDS2	00/00/0000	Prefix Type: RBOC Switch Name: CHCG ILL DEAR DS2 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILIDDS2))
312-496	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILCLDS3	00/00/0000	Prefix Type: RBOC Switch Name: CHCG CANAL EAST DS3 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILCLDS3))
312-496 is split into 1,000-number blocks - detail below
312-496-0XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILCLDS3	N/A	Prefix Type: RBOC Switch Name: CHCG CANAL EAST DS3 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILCLDS3))
312-496-1XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILCLDS3	N/A	Prefix Type: RBOC Switch Name: CHCG CANAL EAST DS3 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILCLDS3))
312-496-2XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILCLDS3	N/A	Prefix Type: RBOC Switch Name: CHCG CANAL EAST DS3 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILCLDS3))
312-496-4XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILCLDS3	N/A	Prefix Type: RBOC Switch Name: CHCG CANAL EAST DS3 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILCLDS3))
312-496-5XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILCLDS3	N/A	Prefix Type: RBOC Switch Name: CHCG CANAL EAST DS3 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILCLDS3))
312-496-8XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILCLDS3	N/A	Prefix Type: RBOC Switch Name: CHCG CANAL EAST DS3 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILCLDS3))
312-496-9XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILCLDS3	N/A	Prefix Type: RBOC Switch Name: CHCG CANAL EAST DS3 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILCLDS3))
312-499	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILFRDS3	00/00/0000	Prefix Type: RBOC Switch Name: CHCG FRANKLIN DS3 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILFRDS3))
312-507	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILFRDS4	00/00/0000	Prefix Type: RBOC Switch Name: CHCG FRANKLIN DS4 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILFRDS4))
312-507 is split into 1,000-number blocks - detail below
312-507-0XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILFRDS4	N/A	Prefix Type: RBOC Switch Name: CHCG FRANKLIN DS4 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILFRDS4))
312-507-2XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILFRDS4	N/A	Prefix Type: RBOC Switch Name: CHCG FRANKLIN DS4 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILFRDS4))
312-507-3XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILFRDS4	N/A	Prefix Type: RBOC Switch Name: CHCG FRANKLIN DS4 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILFRDS4))
312-507-4XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILFRDS4	N/A	Prefix Type: RBOC Switch Name: CHCG FRANKLIN DS4 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILFRDS4))
312-507-5XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILFRDS4	N/A	Prefix Type: RBOC Switch Name: CHCG FRANKLIN DS4 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILFRDS4))
312-507-6XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILFRDS4	N/A	Prefix Type: RBOC Switch Name: CHCG FRANKLIN DS4 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILFRDS4))
312-507-7XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILFRDS4	N/A	Prefix Type: RBOC Switch Name: CHCG FRANKLIN DS4 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILFRDS4))
312-507-8XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILFRDS4	N/A	Prefix Type: RBOC Switch Name: CHCG FRANKLIN DS4 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILFRDS4))
312-516	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILFRDS3	00/00/0000	Prefix Type: RBOC Switch Name: CHCG FRANKLIN DS3 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILFRDS3))
312-526	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILCLDS3	00/00/0000	Prefix Type: RBOC Switch Name: CHCG CANAL EAST DS3 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILCLDS3))
312-526 is split into 1,000-number blocks - detail below
312-526-0XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILCLDS3	N/A	Prefix Type: RBOC Switch Name: CHCG CANAL EAST DS3 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILCLDS3))
312-526-1XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILCLDS3	N/A	Prefix Type: RBOC Switch Name: CHCG CANAL EAST DS3 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILCLDS3))
312-526-2XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILCLDS3	N/A	Prefix Type: RBOC Switch Name: CHCG CANAL EAST DS3 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILCLDS3))
312-526-4XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILCLDS3	N/A	Prefix Type: RBOC Switch Name: CHCG CANAL EAST DS3 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILCLDS3))
312-526-5XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILCLDS3	N/A	Prefix Type: RBOC Switch Name: CHCG CANAL EAST DS3 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILCLDS3))
312-526-7XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILCLDS3	N/A	Prefix Type: RBOC Switch Name: CHCG CANAL EAST DS3 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILCLDS3))
312-526-8XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILCLDS3	N/A	Prefix Type: RBOC Switch Name: CHCG CANAL EAST DS3 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILCLDS3))
312-527	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILIDDS0	00/00/0000	Prefix Type: RBOC Switch Name: CHCG ILL DEAR DS0 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILIDDS0))
312-528	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILCADS0	00/00/0000	Prefix Type: RBOC Switch Name: CHCG CALUMET DS0 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILST55T 🔧 Explore Switch(CLLI: CHCGILCADS0))
312-528 is split into 1,000-number blocks - detail below
312-528-0XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILCADS0	N/A	Prefix Type: RBOC Switch Name: CHCG CALUMET DS0 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILST55T 🔧 Explore Switch(CLLI: CHCGILCADS0))
312-528-1XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILCADS0	N/A	Prefix Type: RBOC Switch Name: CHCG CALUMET DS0 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILST55T 🔧 Explore Switch(CLLI: CHCGILCADS0))
312-528-4XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILCADS0	N/A	Prefix Type: RBOC Switch Name: CHCG CALUMET DS0 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILST55T 🔧 Explore Switch(CLLI: CHCGILCADS0))
312-528-6XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILCADS0	N/A	Prefix Type: RBOC Switch Name: CHCG CALUMET DS0 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILST55T 🔧 Explore Switch(CLLI: CHCGILCADS0))
312-528-8XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILCADS0	N/A	Prefix Type: RBOC Switch Name: CHCG CALUMET DS0 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILST55T 🔧 Explore Switch(CLLI: CHCGILCADS0))
312-534	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILSUDS0	09/17/2008	Prefix Type: RBOC Switch Name: CHCG SUPERIOR DS0 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILSUDS0))
312-534 is split into 1,000-number blocks - detail below
312-534-0XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILSUDS0	09/25/2008	Prefix Type: RBOC Switch Name: CHCG SUPERIOR DS0 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILSUDS0))
312-534-1XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILSUDS0	09/25/2008	Prefix Type: RBOC Switch Name: CHCG SUPERIOR DS0 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILSUDS0))
312-534-2XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILSUDS0	09/25/2008	Prefix Type: RBOC Switch Name: CHCG SUPERIOR DS0 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILSUDS0))
312-534-3XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILSUDS0	09/25/2008	Prefix Type: RBOC Switch Name: CHCG SUPERIOR DS0 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILSUDS0))
312-534-4XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILSUDS0	09/25/2008	Prefix Type: RBOC Switch Name: CHCG SUPERIOR DS0 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILSUDS0))
312-534-5XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILSUDS0	09/25/2008	Prefix Type: RBOC Switch Name: CHCG SUPERIOR DS0 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILSUDS0))
312-534-6XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILSUDS0	09/25/2008	Prefix Type: RBOC Switch Name: CHCG SUPERIOR DS0 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILSUDS0))
312-534-7XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILSUDS0	09/25/2008	Prefix Type: RBOC Switch Name: CHCG SUPERIOR DS0 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILSUDS0))
312-534-8XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILSUDS0	09/25/2008	Prefix Type: RBOC Switch Name: CHCG SUPERIOR DS0 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILSUDS0))
312-534-9XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILSUDS0	09/25/2008	Prefix Type: RBOC Switch Name: CHCG SUPERIOR DS0 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILSUDS0))
312-537	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILCLDS3	00/00/0000	Prefix Type: RBOC Switch Name: CHCG CANAL EAST DS3 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILCLDS3))
312-537 is split into 1,000-number blocks - detail below
312-537-0XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILCLDS3	N/A	Prefix Type: RBOC Switch Name: CHCG CANAL EAST DS3 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILCLDS3))
312-537-1XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILCLDS3	N/A	Prefix Type: RBOC Switch Name: CHCG CANAL EAST DS3 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILCLDS3))
312-537-2XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILCLDS3	N/A	Prefix Type: RBOC Switch Name: CHCG CANAL EAST DS3 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILCLDS3))
312-537-3XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILCLDS3	N/A	Prefix Type: RBOC Switch Name: CHCG CANAL EAST DS3 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILCLDS3))
312-537-4XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILCLDS3	N/A	Prefix Type: RBOC Switch Name: CHCG CANAL EAST DS3 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILCLDS3))
312-537-5XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILCLDS3	N/A	Prefix Type: RBOC Switch Name: CHCG CANAL EAST DS3 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILCLDS3))
312-537-7XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILCLDS3	N/A	Prefix Type: RBOC Switch Name: CHCG CANAL EAST DS3 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILCLDS3))
312-537-8XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILCLDS3	N/A	Prefix Type: RBOC Switch Name: CHCG CANAL EAST DS3 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILCLDS3))
312-537-9XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILCLDS3	N/A	Prefix Type: RBOC Switch Name: CHCG CANAL EAST DS3 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILCLDS3))
312-540	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILLRDS0	00/00/0000	Prefix Type: RBOC Switch Name: CHCG LAKESHORE Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILLRDS0))
312-541	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILFRDS0	00/00/0000	Prefix Type: RBOC Switch Name: CHCG FRANKLIN DS0 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILFRDS0))
312-542	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILWBDS3	00/00/0000	Prefix Type: RBOC Switch Name: CHCG WABASH DS3 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILWB55T 🔧 Explore Switch(CLLI: CHCGILWBDS3))
312-544	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILCLDS3	00/00/0000	Prefix Type: RBOC Switch Name: CHCG CANAL EAST DS3 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILCLDS3))
312-544 is split into 1,000-number blocks - detail below
312-544-1XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILCLDS3	N/A	Prefix Type: RBOC Switch Name: CHCG CANAL EAST DS3 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILCLDS3))
312-544-2XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILCLDS3	N/A	Prefix Type: RBOC Switch Name: CHCG CANAL EAST DS3 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILCLDS3))
312-544-3XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILCLDS3	N/A	Prefix Type: RBOC Switch Name: CHCG CANAL EAST DS3 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILCLDS3))
312-544-4XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILCLDS3	N/A	Prefix Type: RBOC Switch Name: CHCG CANAL EAST DS3 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILCLDS3))
312-544-5XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILCLDS3	N/A	Prefix Type: RBOC Switch Name: CHCG CANAL EAST DS3 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILCLDS3))
312-544-6XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILCLDS3	N/A	Prefix Type: RBOC Switch Name: CHCG CANAL EAST DS3 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILCLDS3))
312-544-7XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILCLDS3	N/A	Prefix Type: RBOC Switch Name: CHCG CANAL EAST DS3 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILCLDS3))
312-551	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILFRDS4	00/00/0000	Prefix Type: RBOC Switch Name: CHCG FRANKLIN DS4 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILFRDS4))
312-552	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILLRDS0	00/00/0000	Prefix Type: RBOC Switch Name: CHCG LAKESHORE Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILLRDS0))
312-553	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILFRDS0	00/00/0000	Prefix Type: RBOC Switch Name: CHCG FRANKLIN DS0 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILFRDS0))
312-554	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILWBDS0	00/00/0000	Prefix Type: RBOC Switch Name: CHCG WABASH DS0 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILWB55T 🔧 Explore Switch(CLLI: CHCGILWBDS0))
312-554 is split into 1,000-number blocks - detail below
312-554-1XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILWBDS0	N/A	Prefix Type: RBOC Switch Name: CHCG WABASH DS0 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILWB55T 🔧 Explore Switch(CLLI: CHCGILWBDS0))
312-554-2XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILWBDS0	N/A	Prefix Type: RBOC Switch Name: CHCG WABASH DS0 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILWB55T 🔧 Explore Switch(CLLI: CHCGILWBDS0))
312-554-3XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILWBDS0	N/A	Prefix Type: RBOC Switch Name: CHCG WABASH DS0 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILWB55T 🔧 Explore Switch(CLLI: CHCGILWBDS0))
312-554-4XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILWBDS0	N/A	Prefix Type: RBOC Switch Name: CHCG WABASH DS0 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILWB55T 🔧 Explore Switch(CLLI: CHCGILWBDS0))
312-554-7XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILWBDS0	N/A	Prefix Type: RBOC Switch Name: CHCG WABASH DS0 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILWB55T 🔧 Explore Switch(CLLI: CHCGILWBDS0))
312-554-8XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILWBDS0	N/A	Prefix Type: RBOC Switch Name: CHCG WABASH DS0 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILWB55T 🔧 Explore Switch(CLLI: CHCGILWBDS0))
312-556	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILFRDS0	00/00/0000	Prefix Type: RBOC Switch Name: CHCG FRANKLIN DS0 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILFRDS0))
312-557	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILFRDS0	00/00/0000	Prefix Type: RBOC Switch Name: CHCG FRANKLIN DS0 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILFRDS0))
312-558	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILFRDS3	00/00/0000	Prefix Type: RBOC Switch Name: CHCG FRANKLIN DS3 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILFRDS3))
312-559	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILCLDS3	00/00/0000	Prefix Type: RBOC Switch Name: CHCG CANAL EAST DS3 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILCLDS3))
312-563	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILMODS1	00/00/0000	Prefix Type: RBOC Switch Name: CHCG MONROE DS1 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILST55T 🔧 Explore Switch(CLLI: CHCGILMODS1))
312-565	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILLRDS0	00/00/0000	Prefix Type: RBOC Switch Name: CHCG LAKESHORE Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILLRDS0))
312-566	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILWBDS2	00/00/0000	Prefix Type: RBOC Switch Name: CHCG WABASH DS2 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILWB55T 🔧 Explore Switch(CLLI: CHCGILWBDS2))
312-566 is split into 1,000-number blocks - detail below
312-566-0XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILWBDS2	N/A	Prefix Type: RBOC Switch Name: CHCG WABASH DS2 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILWB55T 🔧 Explore Switch(CLLI: CHCGILWBDS2))
312-566-2XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILWBDS2	N/A	Prefix Type: RBOC Switch Name: CHCG WABASH DS2 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILWB55T 🔧 Explore Switch(CLLI: CHCGILWBDS2))
312-566-5XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILWBDS2	N/A	Prefix Type: RBOC Switch Name: CHCG WABASH DS2 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILWB55T 🔧 Explore Switch(CLLI: CHCGILWBDS2))
312-566-9XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILWBDS2	N/A	Prefix Type: RBOC Switch Name: CHCG WABASH DS2 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILWB55T 🔧 Explore Switch(CLLI: CHCGILWBDS2))
312-567	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILCADS0	00/00/0000	Prefix Type: RBOC Switch Name: CHCG CALUMET DS0 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILST55T 🔧 Explore Switch(CLLI: CHCGILCADS0))
312-568	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILCLDS3	00/00/0000	Prefix Type: RBOC Switch Name: CHCG CANAL EAST DS3 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILCLDS3))
312-568 is split into 1,000-number blocks - detail below
312-568-0XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILCLDS3	N/A	Prefix Type: RBOC Switch Name: CHCG CANAL EAST DS3 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILCLDS3))
312-568-8XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILCLDS3	N/A	Prefix Type: RBOC Switch Name: CHCG CANAL EAST DS3 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILCLDS3))
312-569	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILMODS1	00/00/0000	Prefix Type: RBOC Switch Name: CHCG MONROE DS1 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILST55T 🔧 Explore Switch(CLLI: CHCGILMODS1))
312-569 is split into 1,000-number blocks - detail below
312-569-4XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILMODS1	05/28/2002	Prefix Type: RBOC Switch Name: CHCG MONROE DS1 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILST55T 🔧 Explore Switch(CLLI: CHCGILMODS1))
312-569-5XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILMODS1	N/A	Prefix Type: RBOC Switch Name: CHCG MONROE DS1 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILST55T 🔧 Explore Switch(CLLI: CHCGILMODS1))
312-569-6XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILMODS1	N/A	Prefix Type: RBOC Switch Name: CHCG MONROE DS1 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILST55T 🔧 Explore Switch(CLLI: CHCGILMODS1))
312-569-7XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILMODS1	N/A	Prefix Type: RBOC Switch Name: CHCG MONROE DS1 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILST55T 🔧 Explore Switch(CLLI: CHCGILMODS1))
312-569-8XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILMODS1	N/A	Prefix Type: RBOC Switch Name: CHCG MONROE DS1 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILST55T 🔧 Explore Switch(CLLI: CHCGILMODS1))
312-570	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILCADS0	00/00/0000	Prefix Type: RBOC Switch Name: CHCG CALUMET DS0 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILST55T 🔧 Explore Switch(CLLI: CHCGILCADS0))
312-572	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILMODS0	00/00/0000	Prefix Type: RBOC Switch Name: CHCG MONROE DS0 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILST55T 🔧 Explore Switch(CLLI: CHCGILMODS0))
312-572 is split into 1,000-number blocks - detail below
312-572-1XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILMODS0	N/A	Prefix Type: RBOC Switch Name: CHCG MONROE DS0 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILST55T 🔧 Explore Switch(CLLI: CHCGILMODS0))
312-572-2XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILMODS0	N/A	Prefix Type: RBOC Switch Name: CHCG MONROE DS0 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILST55T 🔧 Explore Switch(CLLI: CHCGILMODS0))
312-572-3XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILMODS0	N/A	Prefix Type: RBOC Switch Name: CHCG MONROE DS0 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILST55T 🔧 Explore Switch(CLLI: CHCGILMODS0))
312-572-4XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILMODS0	N/A	Prefix Type: RBOC Switch Name: CHCG MONROE DS0 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILST55T 🔧 Explore Switch(CLLI: CHCGILMODS0))
312-572-5XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILMODS0	N/A	Prefix Type: RBOC Switch Name: CHCG MONROE DS0 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILST55T 🔧 Explore Switch(CLLI: CHCGILMODS0))
312-573	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILSUDS2	00/00/0000	Prefix Type: RBOC Switch Name: CHCG SUPERIOR DS2 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILSUDS2))
312-574	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILFRDS1	00/00/0000	Prefix Type: RBOC Switch Name: CHCG FRANKLIN DS1 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILFRDS1))
312-574 is split into 1,000-number blocks - detail below
312-574-2XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILFRDS1	N/A	Prefix Type: RBOC Switch Name: CHCG FRANKLIN DS1 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILFRDS1))
312-574-4XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILFRDS1	N/A	Prefix Type: RBOC Switch Name: CHCG FRANKLIN DS1 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILFRDS1))
312-574-5XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILFRDS1	N/A	Prefix Type: RBOC Switch Name: CHCG FRANKLIN DS1 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILFRDS1))
312-574-6XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILFRDS1	N/A	Prefix Type: RBOC Switch Name: CHCG FRANKLIN DS1 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILFRDS1))
312-574-7XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILFRDS1	N/A	Prefix Type: RBOC Switch Name: CHCG FRANKLIN DS1 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILFRDS1))
312-574-8XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILFRDS1	N/A	Prefix Type: RBOC Switch Name: CHCG FRANKLIN DS1 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILFRDS1))
312-574-9XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILFRDS1	N/A	Prefix Type: RBOC Switch Name: CHCG FRANKLIN DS1 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILFRDS1))
312-575	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILCLDS3	00/00/0000	Prefix Type: RBOC Switch Name: CHCG CANAL EAST DS3 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILCLDS3))
312-578	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILFRDS3	00/00/0000	Prefix Type: RBOC Switch Name: CHCG FRANKLIN DS3 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILFRDS3))
312-580	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILFRDS4	00/00/0000	Prefix Type: RBOC Switch Name: CHCG FRANKLIN DS4 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILFRDS4))
312-582	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILWBDS0	05/16/2002	Prefix Type: RBOC Switch Name: CHCG WABASH DS0 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILWB55T 🔧 Explore Switch(CLLI: CHCGILWBDS0))
312-582 is split into 1,000-number blocks - detail below
312-582-3XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILWBDS0	05/23/2002	Prefix Type: RBOC Switch Name: CHCG WABASH DS0 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILWB55T 🔧 Explore Switch(CLLI: CHCGILWBDS0))
312-582-5XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILWBDS0	05/23/2002	Prefix Type: RBOC Switch Name: CHCG WABASH DS0 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILWB55T 🔧 Explore Switch(CLLI: CHCGILWBDS0))
312-582-6XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILWBDS0	05/23/2002	Prefix Type: RBOC Switch Name: CHCG WABASH DS0 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILWB55T 🔧 Explore Switch(CLLI: CHCGILWBDS0))
312-582-7XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILWBDS0	05/23/2002	Prefix Type: RBOC Switch Name: CHCG WABASH DS0 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILWB55T 🔧 Explore Switch(CLLI: CHCGILWBDS0))
312-582-8XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILWBDS0	05/23/2002	Prefix Type: RBOC Switch Name: CHCG WABASH DS0 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILWB55T 🔧 Explore Switch(CLLI: CHCGILWBDS0))
312-583	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILWBDS2	00/00/0000	Prefix Type: RBOC Switch Name: CHCG WABASH DS2 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILWB55T 🔧 Explore Switch(CLLI: CHCGILWBDS2))
312-583 is split into 1,000-number blocks - detail below
312-583-0XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILWBDS2	N/A	Prefix Type: RBOC Switch Name: CHCG WABASH DS2 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILWB55T 🔧 Explore Switch(CLLI: CHCGILWBDS2))
312-583-1XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILWBDS2	N/A	Prefix Type: RBOC Switch Name: CHCG WABASH DS2 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILWB55T 🔧 Explore Switch(CLLI: CHCGILWBDS2))
312-583-2XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILWBDS2	N/A	Prefix Type: RBOC Switch Name: CHCG WABASH DS2 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILWB55T 🔧 Explore Switch(CLLI: CHCGILWBDS2))
312-583-3XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILWBDS2	N/A	Prefix Type: RBOC Switch Name: CHCG WABASH DS2 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILWB55T 🔧 Explore Switch(CLLI: CHCGILWBDS2))
312-583-4XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILWBDS2	N/A	Prefix Type: RBOC Switch Name: CHCG WABASH DS2 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILWB55T 🔧 Explore Switch(CLLI: CHCGILWBDS2))
312-583-5XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILWBDS2	N/A	Prefix Type: RBOC Switch Name: CHCG WABASH DS2 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILWB55T 🔧 Explore Switch(CLLI: CHCGILWBDS2))
312-583-6XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILWBDS2	N/A	Prefix Type: RBOC Switch Name: CHCG WABASH DS2 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILWB55T 🔧 Explore Switch(CLLI: CHCGILWBDS2))
312-583-8XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILWBDS2	N/A	Prefix Type: RBOC Switch Name: CHCG WABASH DS2 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILWB55T 🔧 Explore Switch(CLLI: CHCGILWBDS2))
312-583-9XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILWBDS2	N/A	Prefix Type: RBOC Switch Name: CHCG WABASH DS2 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILWB55T 🔧 Explore Switch(CLLI: CHCGILWBDS2))
312-587	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILSUDS0	00/00/0000	Prefix Type: RBOC Switch Name: CHCG SUPERIOR DS0 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILSUDS0))
312-588	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILWBDS2	00/00/0000	Prefix Type: RBOC Switch Name: CHCG WABASH DS2 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILWB55T 🔧 Explore Switch(CLLI: CHCGILWBDS2))
312-588 is split into 1,000-number blocks - detail below
312-588-0XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILWBDS2	N/A	Prefix Type: RBOC Switch Name: CHCG WABASH DS2 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILWB55T 🔧 Explore Switch(CLLI: CHCGILWBDS2))
312-588-1XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILWBDS2	N/A	Prefix Type: RBOC Switch Name: CHCG WABASH DS2 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILWB55T 🔧 Explore Switch(CLLI: CHCGILWBDS2))
312-588-2XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILWBDS2	N/A	Prefix Type: RBOC Switch Name: CHCG WABASH DS2 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILWB55T 🔧 Explore Switch(CLLI: CHCGILWBDS2))
312-588-4XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILWBDS2	N/A	Prefix Type: RBOC Switch Name: CHCG WABASH DS2 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILWB55T 🔧 Explore Switch(CLLI: CHCGILWBDS2))
312-588-5XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILWBDS2	N/A	Prefix Type: RBOC Switch Name: CHCG WABASH DS2 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILWB55T 🔧 Explore Switch(CLLI: CHCGILWBDS2))
312-589	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILCLDS3	00/00/0000	Prefix Type: RBOC Switch Name: CHCG CANAL EAST DS3 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILCLDS3))
312-589 is split into 1,000-number blocks - detail below
312-589-1XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILCLDS3	N/A	Prefix Type: RBOC Switch Name: CHCG CANAL EAST DS3 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILCLDS3))
312-589-9XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILCLDS3	N/A	Prefix Type: RBOC Switch Name: CHCG CANAL EAST DS3 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILCLDS3))
312-591	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILWB55T	00/00/0000	Prefix Type: RBOC Switch Name: CHCZ 1 Switch Type: N/A LATA: Chicago IL METRO (358) Tandem: N/A 🔧 Explore Switch(CLLI: CHCGILWB55T))
312-592	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILFRDS0	00/00/0000	Prefix Type: RBOC Switch Name: CHCG FRANKLIN DS0 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILFRDS0))
312-595	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILIDDS0	00/00/0000	Prefix Type: RBOC Switch Name: CHCG ILL DEAR DS0 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILIDDS0))
312-603	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILFRDS0	00/00/0000	Prefix Type: RBOC Switch Name: CHCG FRANKLIN DS0 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILFRDS0))
312-606	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILFRDS0	00/00/0000	Prefix Type: RBOC Switch Name: CHCG FRANKLIN DS0 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILFRDS0))
312-609	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILFRDS3	00/00/0000	Prefix Type: RBOC Switch Name: CHCG FRANKLIN DS3 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILFRDS3))
312-609 is split into 1,000-number blocks - detail below
312-609-0XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILFRDS3	N/A	Prefix Type: RBOC Switch Name: CHCG FRANKLIN DS3 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILFRDS3))
312-609-1XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILFRDS3	N/A	Prefix Type: RBOC Switch Name: CHCG FRANKLIN DS3 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILFRDS3))
312-609-2XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILFRDS3	N/A	Prefix Type: RBOC Switch Name: CHCG FRANKLIN DS3 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILFRDS3))
312-609-3XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILFRDS3	N/A	Prefix Type: RBOC Switch Name: CHCG FRANKLIN DS3 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILFRDS3))
312-609-4XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILFRDS3	N/A	Prefix Type: RBOC Switch Name: CHCG FRANKLIN DS3 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILFRDS3))
312-609-5XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILFRDS3	N/A	Prefix Type: RBOC Switch Name: CHCG FRANKLIN DS3 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILFRDS3))
312-609-6XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILFRDS3	N/A	Prefix Type: RBOC Switch Name: CHCG FRANKLIN DS3 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILFRDS3))
312-609-7XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILFRDS3	N/A	Prefix Type: RBOC Switch Name: CHCG FRANKLIN DS3 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILFRDS3))
312-609-8XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILFRDS3	N/A	Prefix Type: RBOC Switch Name: CHCG FRANKLIN DS3 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILFRDS3))
312-612	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILCLDS3	00/00/0000	Prefix Type: RBOC Switch Name: CHCG CANAL EAST DS3 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILCLDS3))
312-612 is split into 1,000-number blocks - detail below
312-612-3XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILCLDS3	N/A	Prefix Type: RBOC Switch Name: CHCG CANAL EAST DS3 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILCLDS3))
312-612-4XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILCLDS3	N/A	Prefix Type: RBOC Switch Name: CHCG CANAL EAST DS3 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILCLDS3))
312-612-5XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILCLDS3	N/A	Prefix Type: RBOC Switch Name: CHCG CANAL EAST DS3 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILCLDS3))
312-612-6XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILCLDS3	09/08/2000	Prefix Type: RBOC Switch Name: CHCG CANAL EAST DS3 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILCLDS3))
312-612-7XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILCLDS3	09/08/2000	Prefix Type: RBOC Switch Name: CHCG CANAL EAST DS3 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILCLDS3))
312-612-8XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILCLDS3	09/08/2000	Prefix Type: RBOC Switch Name: CHCG CANAL EAST DS3 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILCLDS3))
312-614	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILCLDS3	10/19/2012	Prefix Type: RBOC Switch Name: CHCG CANAL EAST DS3 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILCLDS3))
312-614 is split into 1,000-number blocks - detail below
312-614-6XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILCLDS3	10/19/2012	Prefix Type: RBOC Switch Name: CHCG CANAL EAST DS3 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILCLDS3))
312-614-7XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILCLDS3	10/19/2012	Prefix Type: RBOC Switch Name: CHCG CANAL EAST DS3 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILCLDS3))
312-614-8XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILCLDS3	10/19/2012	Prefix Type: RBOC Switch Name: CHCG CANAL EAST DS3 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILCLDS3))
312-616	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILLRDS0	00/00/0000	Prefix Type: RBOC Switch Name: CHCG LAKESHORE Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILLRDS0))
312-621	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILFRDS3	00/00/0000	Prefix Type: RBOC Switch Name: CHCG FRANKLIN DS3 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILFRDS3))
312-627	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILCLDS0	00/00/0000	Prefix Type: RBOC Switch Name: CHCG CANAL EAST DS0 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILCLDS0))
312-627 is split into 1,000-number blocks - detail below
312-627-0XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILCLDS0	N/A	Prefix Type: RBOC Switch Name: CHCG CANAL EAST DS0 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILCLDS0))
312-627-1XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILCLDS0	N/A	Prefix Type: RBOC Switch Name: CHCG CANAL EAST DS0 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILCLDS0))
312-627-2XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILCLDS0	N/A	Prefix Type: RBOC Switch Name: CHCG CANAL EAST DS0 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILCLDS0))
312-627-3XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILCLDS0	N/A	Prefix Type: RBOC Switch Name: CHCG CANAL EAST DS0 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILCLDS0))
312-627-4XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILCLDS0	N/A	Prefix Type: RBOC Switch Name: CHCG CANAL EAST DS0 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILCLDS0))
312-627-5XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILCLDS0	N/A	Prefix Type: RBOC Switch Name: CHCG CANAL EAST DS0 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILCLDS0))
312-627-6XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILCLDS0	N/A	Prefix Type: RBOC Switch Name: CHCG CANAL EAST DS0 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILCLDS0))
312-627-7XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILCLDS0	N/A	Prefix Type: RBOC Switch Name: CHCG CANAL EAST DS0 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILCLDS0))
312-627-8XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILCLDS0	N/A	Prefix Type: RBOC Switch Name: CHCG CANAL EAST DS0 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILCLDS0))
312-629	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILFRDS0	00/00/0000	Prefix Type: RBOC Switch Name: CHCG FRANKLIN DS0 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILFRDS0))
312-630	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILFRDS0	00/00/0000	Prefix Type: RBOC Switch Name: CHCG FRANKLIN DS0 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILFRDS0))
312-632	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILCLDS0	00/00/0000	Prefix Type: RBOC Switch Name: CHCG CANAL EAST DS0 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILCLDS0))
312-632 is split into 1,000-number blocks - detail below
312-632-1XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILCLDS0	N/A	Prefix Type: RBOC Switch Name: CHCG CANAL EAST DS0 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILCLDS0))
312-632-2XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILCLDS0	N/A	Prefix Type: RBOC Switch Name: CHCG CANAL EAST DS0 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILCLDS0))
312-633	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILMODS0	00/00/0000	Prefix Type: RBOC Switch Name: CHCG MONROE DS0 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILST55T 🔧 Explore Switch(CLLI: CHCGILMODS0))
312-634	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILFRDS1	00/00/0000	Prefix Type: RBOC Switch Name: CHCG FRANKLIN DS1 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILFRDS1))
312-640	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILSUDS2	00/00/0000	Prefix Type: RBOC Switch Name: CHCG SUPERIOR DS2 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILSUDS2))
312-641	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILFRDS0	00/00/0000	Prefix Type: RBOC Switch Name: CHCG FRANKLIN DS0 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILFRDS0))
312-642	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILSUDS2	00/00/0000	Prefix Type: RBOC Switch Name: CHCG SUPERIOR DS2 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILSUDS2))
312-644	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILIDDS2	00/00/0000	Prefix Type: RBOC Switch Name: CHCG ILL DEAR DS2 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILIDDS2))
312-645	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILIDDS2	00/00/0000	Prefix Type: RBOC Switch Name: CHCG ILL DEAR DS2 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILIDDS2))
312-648	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILCLDS3	00/00/0000	Prefix Type: RBOC Switch Name: CHCG CANAL EAST DS3 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILCLDS3))
312-648 is split into 1,000-number blocks - detail below
312-648-0XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILCLDS3	N/A	Prefix Type: RBOC Switch Name: CHCG CANAL EAST DS3 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILCLDS3))
312-648-1XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILCLDS3	N/A	Prefix Type: RBOC Switch Name: CHCG CANAL EAST DS3 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILCLDS3))
312-648-2XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILCLDS3	N/A	Prefix Type: RBOC Switch Name: CHCG CANAL EAST DS3 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILCLDS3))
312-648-3XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILCLDS3	N/A	Prefix Type: RBOC Switch Name: CHCG CANAL EAST DS3 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILCLDS3))
312-648-4XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILCLDS3	N/A	Prefix Type: RBOC Switch Name: CHCG CANAL EAST DS3 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILCLDS3))
312-648-5XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILCLDS3	N/A	Prefix Type: RBOC Switch Name: CHCG CANAL EAST DS3 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILCLDS3))
312-648-7XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILCLDS3	N/A	Prefix Type: RBOC Switch Name: CHCG CANAL EAST DS3 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILCLDS3))
312-648-8XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILCLDS3	N/A	Prefix Type: RBOC Switch Name: CHCG CANAL EAST DS3 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILCLDS3))
312-648-9XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILCLDS3	N/A	Prefix Type: RBOC Switch Name: CHCG CANAL EAST DS3 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILCLDS3))
312-649	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILSUDS2	00/00/0000	Prefix Type: RBOC Switch Name: CHCG SUPERIOR DS2 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILSUDS2))
312-651	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILCLDS3	00/00/0000	Prefix Type: RBOC Switch Name: CHCG CANAL EAST DS3 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILCLDS3))
312-651 is split into 1,000-number blocks - detail below
312-651-0XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILCLDS3	N/A	Prefix Type: RBOC Switch Name: CHCG CANAL EAST DS3 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILCLDS3))
312-651-1XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILCLDS3	N/A	Prefix Type: RBOC Switch Name: CHCG CANAL EAST DS3 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILCLDS3))
312-651-2XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILCLDS3	N/A	Prefix Type: RBOC Switch Name: CHCG CANAL EAST DS3 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILCLDS3))
312-651-7XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILCLDS3	N/A	Prefix Type: RBOC Switch Name: CHCG CANAL EAST DS3 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILCLDS3))
312-651-8XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILCLDS3	N/A	Prefix Type: RBOC Switch Name: CHCG CANAL EAST DS3 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILCLDS3))
312-651-9XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILCLDS3	N/A	Prefix Type: RBOC Switch Name: CHCG CANAL EAST DS3 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILCLDS3))
312-652	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILFRDS4	00/00/0000	Prefix Type: RBOC Switch Name: CHCG FRANKLIN DS4 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILFRDS4))
312-653	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILLRDS0	00/00/0000	Prefix Type: RBOC Switch Name: CHCG LAKESHORE Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILLRDS0))
312-654	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILSUDS0	00/00/0000	Prefix Type: RBOC Switch Name: CHCG SUPERIOR DS0 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILSUDS0))
312-655	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILCLDS3	00/00/0000	Prefix Type: RBOC Switch Name: CHCG CANAL EAST DS3 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILCLDS3))
312-658	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILFRDS3	00/00/0000	Prefix Type: RBOC Switch Name: CHCG FRANKLIN DS3 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILFRDS3))
312-661	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILIDDS2	00/00/0000	Prefix Type: RBOC Switch Name: CHCG ILL DEAR DS2 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILIDDS2))
312-661 is split into 1,000-number blocks - detail below
312-661-0XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILIDDS2	N/A	Prefix Type: RBOC Switch Name: CHCG ILL DEAR DS2 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILIDDS2))
312-661-1XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILIDDS2	N/A	Prefix Type: RBOC Switch Name: CHCG ILL DEAR DS2 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILIDDS2))
312-661-3XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILIDDS2	N/A	Prefix Type: RBOC Switch Name: CHCG ILL DEAR DS2 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILIDDS2))
312-661-4XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILIDDS2	N/A	Prefix Type: RBOC Switch Name: CHCG ILL DEAR DS2 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILIDDS2))
312-661-7XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILIDDS2	N/A	Prefix Type: RBOC Switch Name: CHCG ILL DEAR DS2 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILIDDS2))
312-661-8XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILIDDS2	N/A	Prefix Type: RBOC Switch Name: CHCG ILL DEAR DS2 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILIDDS2))
312-661-9XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILIDDS2	N/A	Prefix Type: RBOC Switch Name: CHCG ILL DEAR DS2 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILIDDS2))
312-662	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILWBDS2	00/00/0000	Prefix Type: RBOC Switch Name: CHCG WABASH DS2 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILWB55T 🔧 Explore Switch(CLLI: CHCGILWBDS2))
312-662 is split into 1,000-number blocks - detail below
312-662-1XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILWBDS2	N/A	Prefix Type: RBOC Switch Name: CHCG WABASH DS2 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILWB55T 🔧 Explore Switch(CLLI: CHCGILWBDS2))
312-663	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILWBDS3	00/00/0000	Prefix Type: RBOC Switch Name: CHCG WABASH DS3 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILWB55T 🔧 Explore Switch(CLLI: CHCGILWBDS3))
312-664	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILSUDS2	00/00/0000	Prefix Type: RBOC Switch Name: CHCG SUPERIOR DS2 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILSUDS2))
312-666	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILMODS1	00/00/0000	Prefix Type: RBOC Switch Name: CHCG MONROE DS1 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILST55T 🔧 Explore Switch(CLLI: CHCGILMODS1))
312-669	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILCLDS3	00/00/0000	Prefix Type: RBOC Switch Name: CHCG CANAL EAST DS3 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILCLDS3))
312-669 is split into 1,000-number blocks - detail below
312-669-1XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILCLDS3	N/A	Prefix Type: RBOC Switch Name: CHCG CANAL EAST DS3 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILCLDS3))
312-669-2XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILCLDS3	N/A	Prefix Type: RBOC Switch Name: CHCG CANAL EAST DS3 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILCLDS3))
312-669-3XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILCLDS3	N/A	Prefix Type: RBOC Switch Name: CHCG CANAL EAST DS3 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILCLDS3))
312-669-5XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILCLDS3	N/A	Prefix Type: RBOC Switch Name: CHCG CANAL EAST DS3 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILCLDS3))
312-669-6XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILCLDS3	N/A	Prefix Type: RBOC Switch Name: CHCG CANAL EAST DS3 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILCLDS3))
312-669-7XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILCLDS3	N/A	Prefix Type: RBOC Switch Name: CHCG CANAL EAST DS3 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILCLDS3))
312-669-8XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILCLDS3	N/A	Prefix Type: RBOC Switch Name: CHCG CANAL EAST DS3 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILCLDS3))
312-669-9XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILCLDS3	N/A	Prefix Type: RBOC Switch Name: CHCG CANAL EAST DS3 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILCLDS3))
312-670	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILIDDS2	00/00/0000	Prefix Type: RBOC Switch Name: CHCG ILL DEAR DS2 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILIDDS2))
312-672	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILCLDS3	00/00/0000	Prefix Type: RBOC Switch Name: CHCG CANAL EAST DS3 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILCLDS3))
312-672 is split into 1,000-number blocks - detail below
312-672-0XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILCLDS3	N/A	Prefix Type: RBOC Switch Name: CHCG CANAL EAST DS3 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILCLDS3))
312-672-3XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILCLDS3	N/A	Prefix Type: RBOC Switch Name: CHCG CANAL EAST DS3 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILCLDS3))
312-672-4XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILCLDS3	N/A	Prefix Type: RBOC Switch Name: CHCG CANAL EAST DS3 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILCLDS3))
312-672-5XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILCLDS3	N/A	Prefix Type: RBOC Switch Name: CHCG CANAL EAST DS3 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILCLDS3))
312-672-6XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILCLDS3	N/A	Prefix Type: RBOC Switch Name: CHCG CANAL EAST DS3 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILCLDS3))
312-672-7XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILCLDS3	N/A	Prefix Type: RBOC Switch Name: CHCG CANAL EAST DS3 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILCLDS3))
312-672-8XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILCLDS3	N/A	Prefix Type: RBOC Switch Name: CHCG CANAL EAST DS3 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILCLDS3))
312-674	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILCADS0	00/00/0000	Prefix Type: RBOC Switch Name: CHCG CALUMET DS0 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILST55T 🔧 Explore Switch(CLLI: CHCGILCADS0))
312-674 is split into 1,000-number blocks - detail below
312-674-0XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILCADS0	N/A	Prefix Type: RBOC Switch Name: CHCG CALUMET DS0 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILST55T 🔧 Explore Switch(CLLI: CHCGILCADS0))
312-674-2XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILCADS0	N/A	Prefix Type: RBOC Switch Name: CHCG CALUMET DS0 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILST55T 🔧 Explore Switch(CLLI: CHCGILCADS0))
312-674-3XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILCADS0	N/A	Prefix Type: RBOC Switch Name: CHCG CALUMET DS0 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILST55T 🔧 Explore Switch(CLLI: CHCGILCADS0))
312-674-4XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILCADS0	N/A	Prefix Type: RBOC Switch Name: CHCG CALUMET DS0 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILST55T 🔧 Explore Switch(CLLI: CHCGILCADS0))
312-674-5XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILCADS0	N/A	Prefix Type: RBOC Switch Name: CHCG CALUMET DS0 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILST55T 🔧 Explore Switch(CLLI: CHCGILCADS0))
312-674-8XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILCADS0	N/A	Prefix Type: RBOC Switch Name: CHCG CALUMET DS0 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILST55T 🔧 Explore Switch(CLLI: CHCGILCADS0))
312-674-9XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILCADS0	N/A	Prefix Type: RBOC Switch Name: CHCG CALUMET DS0 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILST55T 🔧 Explore Switch(CLLI: CHCGILCADS0))
312-675	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILWBDS2	00/00/0000	Prefix Type: RBOC Switch Name: CHCG WABASH DS2 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILWB55T 🔧 Explore Switch(CLLI: CHCGILWBDS2))
312-675 is split into 1,000-number blocks - detail below
312-675-0XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILWBDS2	N/A	Prefix Type: RBOC Switch Name: CHCG WABASH DS2 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILWB55T 🔧 Explore Switch(CLLI: CHCGILWBDS2))
312-681	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILCLDS3	00/00/0000	Prefix Type: RBOC Switch Name: CHCG CANAL EAST DS3 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILCLDS3))
312-681 is split into 1,000-number blocks - detail below
312-681-1XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILCLDS3	N/A	Prefix Type: RBOC Switch Name: CHCG CANAL EAST DS3 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILCLDS3))
312-681-2XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILCLDS3	N/A	Prefix Type: RBOC Switch Name: CHCG CANAL EAST DS3 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILCLDS3))
312-681-3XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILCLDS3	N/A	Prefix Type: RBOC Switch Name: CHCG CANAL EAST DS3 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILCLDS3))
312-681-4XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILCLDS3	N/A	Prefix Type: RBOC Switch Name: CHCG CANAL EAST DS3 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILCLDS3))
312-681-5XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILCLDS3	N/A	Prefix Type: RBOC Switch Name: CHCG CANAL EAST DS3 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILCLDS3))
312-681-6XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILCLDS3	N/A	Prefix Type: RBOC Switch Name: CHCG CANAL EAST DS3 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILCLDS3))
312-681-8XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILCLDS3	N/A	Prefix Type: RBOC Switch Name: CHCG CANAL EAST DS3 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILCLDS3))
312-683	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILFRDS1	00/00/0000	Prefix Type: RBOC Switch Name: CHCG FRANKLIN DS1 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILFRDS1))
312-683 is split into 1,000-number blocks - detail below
312-683-0XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILFRDS1	N/A	Prefix Type: RBOC Switch Name: CHCG FRANKLIN DS1 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILFRDS1))
312-683-1XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILFRDS1	N/A	Prefix Type: RBOC Switch Name: CHCG FRANKLIN DS1 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILFRDS1))
312-683-2XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILFRDS1	N/A	Prefix Type: RBOC Switch Name: CHCG FRANKLIN DS1 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILFRDS1))
312-683-3XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILFRDS1	N/A	Prefix Type: RBOC Switch Name: CHCG FRANKLIN DS1 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILFRDS1))
312-683-4XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILFRDS1	N/A	Prefix Type: RBOC Switch Name: CHCG FRANKLIN DS1 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILFRDS1))
312-683-5XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILFRDS1	N/A	Prefix Type: RBOC Switch Name: CHCG FRANKLIN DS1 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILFRDS1))
312-683-7XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILFRDS1	N/A	Prefix Type: RBOC Switch Name: CHCG FRANKLIN DS1 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILFRDS1))
312-683-8XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILFRDS1	N/A	Prefix Type: RBOC Switch Name: CHCG FRANKLIN DS1 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILFRDS1))
312-692	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILWBDS0	00/00/0000	Prefix Type: RBOC Switch Name: CHCG WABASH DS0 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILWB55T 🔧 Explore Switch(CLLI: CHCGILWBDS0))
312-692 is split into 1,000-number blocks - detail below
312-692-0XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILWBDS0	N/A	Prefix Type: RBOC Switch Name: CHCG WABASH DS0 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILWB55T 🔧 Explore Switch(CLLI: CHCGILWBDS0))
312-692-2XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILWBDS0	N/A	Prefix Type: RBOC Switch Name: CHCG WABASH DS0 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILWB55T 🔧 Explore Switch(CLLI: CHCGILWBDS0))
312-692-3XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILWBDS0	N/A	Prefix Type: RBOC Switch Name: CHCG WABASH DS0 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILWB55T 🔧 Explore Switch(CLLI: CHCGILWBDS0))
312-692-4XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILWBDS0	N/A	Prefix Type: RBOC Switch Name: CHCG WABASH DS0 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILWB55T 🔧 Explore Switch(CLLI: CHCGILWBDS0))
312-692-5XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILWBDS0	N/A	Prefix Type: RBOC Switch Name: CHCG WABASH DS0 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILWB55T 🔧 Explore Switch(CLLI: CHCGILWBDS0))
312-692-6XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILWBDS0	N/A	Prefix Type: RBOC Switch Name: CHCG WABASH DS0 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILWB55T 🔧 Explore Switch(CLLI: CHCGILWBDS0))
312-692-7XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILWBDS0	N/A	Prefix Type: RBOC Switch Name: CHCG WABASH DS0 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILWB55T 🔧 Explore Switch(CLLI: CHCGILWBDS0))
312-692-8XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILWBDS0	N/A	Prefix Type: RBOC Switch Name: CHCG WABASH DS0 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILWB55T 🔧 Explore Switch(CLLI: CHCGILWBDS0))
312-693	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILFRDS4	00/00/0000	Prefix Type: RBOC Switch Name: CHCG FRANKLIN DS4 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILFRDS4))
312-694	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILSUDS2	00/00/0000	Prefix Type: RBOC Switch Name: CHCG SUPERIOR DS2 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILSUDS2))
312-694 is split into 1,000-number blocks - detail below
312-694-0XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILSUDS2	N/A	Prefix Type: RBOC Switch Name: CHCG SUPERIOR DS2 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILSUDS2))
312-694-1XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILSUDS2	N/A	Prefix Type: RBOC Switch Name: CHCG SUPERIOR DS2 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILSUDS2))
312-694-2XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILSUDS2	N/A	Prefix Type: RBOC Switch Name: CHCG SUPERIOR DS2 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILSUDS2))
312-694-4XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILSUDS2	N/A	Prefix Type: RBOC Switch Name: CHCG SUPERIOR DS2 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILSUDS2))
312-694-6XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILSUDS2	N/A	Prefix Type: RBOC Switch Name: CHCG SUPERIOR DS2 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILSUDS2))
312-694-7XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILSUDS2	N/A	Prefix Type: RBOC Switch Name: CHCG SUPERIOR DS2 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILSUDS2))
312-694-8XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILSUDS2	N/A	Prefix Type: RBOC Switch Name: CHCG SUPERIOR DS2 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILSUDS2))
312-694-9XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILSUDS2	N/A	Prefix Type: RBOC Switch Name: CHCG SUPERIOR DS2 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILSUDS2))
312-695	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILSUDS2	00/00/0000	Prefix Type: RBOC Switch Name: CHCG SUPERIOR DS2 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILSUDS2))
312-696	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILFRDS1	00/00/0000	Prefix Type: RBOC Switch Name: CHCG FRANKLIN DS1 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILFRDS1))
312-696 is split into 1,000-number blocks - detail below
312-696-0XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILFRDS1	N/A	Prefix Type: RBOC Switch Name: CHCG FRANKLIN DS1 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILFRDS1))
312-696-1XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILFRDS1	N/A	Prefix Type: RBOC Switch Name: CHCG FRANKLIN DS1 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILFRDS1))
312-696-2XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILFRDS1	N/A	Prefix Type: RBOC Switch Name: CHCG FRANKLIN DS1 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILFRDS1))
312-696-3XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILFRDS1	N/A	Prefix Type: RBOC Switch Name: CHCG FRANKLIN DS1 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILFRDS1))
312-696-4XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILFRDS1	N/A	Prefix Type: RBOC Switch Name: CHCG FRANKLIN DS1 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILFRDS1))
312-696-5XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILFRDS1	N/A	Prefix Type: RBOC Switch Name: CHCG FRANKLIN DS1 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILFRDS1))
312-696-6XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILFRDS1	N/A	Prefix Type: RBOC Switch Name: CHCG FRANKLIN DS1 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILFRDS1))
312-696-7XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILFRDS1	N/A	Prefix Type: RBOC Switch Name: CHCG FRANKLIN DS1 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILFRDS1))
312-696-8XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILFRDS1	N/A	Prefix Type: RBOC Switch Name: CHCG FRANKLIN DS1 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILFRDS1))
312-697	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILWBDS0	00/00/0000	Prefix Type: RBOC Switch Name: CHCG WABASH DS0 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILWB55T 🔧 Explore Switch(CLLI: CHCGILWBDS0))
312-697 is split into 1,000-number blocks - detail below
312-697-0XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILWBDS0	N/A	Prefix Type: RBOC Switch Name: CHCG WABASH DS0 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILWB55T 🔧 Explore Switch(CLLI: CHCGILWBDS0))
312-697-2XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILWBDS0	N/A	Prefix Type: RBOC Switch Name: CHCG WABASH DS0 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILWB55T 🔧 Explore Switch(CLLI: CHCGILWBDS0))
312-697-3XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILWBDS0	N/A	Prefix Type: RBOC Switch Name: CHCG WABASH DS0 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILWB55T 🔧 Explore Switch(CLLI: CHCGILWBDS0))
312-697-4XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILWBDS0	N/A	Prefix Type: RBOC Switch Name: CHCG WABASH DS0 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILWB55T 🔧 Explore Switch(CLLI: CHCGILWBDS0))
312-697-5XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILWBDS0	N/A	Prefix Type: RBOC Switch Name: CHCG WABASH DS0 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILWB55T 🔧 Explore Switch(CLLI: CHCGILWBDS0))
312-697-6XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILWBDS0	N/A	Prefix Type: RBOC Switch Name: CHCG WABASH DS0 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILWB55T 🔧 Explore Switch(CLLI: CHCGILWBDS0))
312-697-7XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILWBDS0	N/A	Prefix Type: RBOC Switch Name: CHCG WABASH DS0 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILWB55T 🔧 Explore Switch(CLLI: CHCGILWBDS0))
312-697-8XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILWBDS0	N/A	Prefix Type: RBOC Switch Name: CHCG WABASH DS0 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILWB55T 🔧 Explore Switch(CLLI: CHCGILWBDS0))
312-701	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILFRDS3	00/00/0000	Prefix Type: RBOC Switch Name: CHCG FRANKLIN DS3 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILFRDS3))
312-701 is split into 1,000-number blocks - detail below
312-701-0XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILFRDS3	N/A	Prefix Type: RBOC Switch Name: CHCG FRANKLIN DS3 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILFRDS3))
312-701-1XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILFRDS3	N/A	Prefix Type: RBOC Switch Name: CHCG FRANKLIN DS3 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILFRDS3))
312-701-5XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILFRDS3	N/A	Prefix Type: RBOC Switch Name: CHCG FRANKLIN DS3 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILFRDS3))
312-701-6XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILFRDS3	N/A	Prefix Type: RBOC Switch Name: CHCG FRANKLIN DS3 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILFRDS3))
312-701-7XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILFRDS3	N/A	Prefix Type: RBOC Switch Name: CHCG FRANKLIN DS3 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILFRDS3))
312-701-8XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILFRDS3	N/A	Prefix Type: RBOC Switch Name: CHCG FRANKLIN DS3 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILFRDS3))
312-701-9XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILFRDS3	N/A	Prefix Type: RBOC Switch Name: CHCG FRANKLIN DS3 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILFRDS3))
312-703	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILSUDS2	00/00/0000	Prefix Type: RBOC Switch Name: CHCG SUPERIOR DS2 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILSUDS2))
312-704	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILFRDS4	00/00/0000	Prefix Type: RBOC Switch Name: CHCG FRANKLIN DS4 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILFRDS4))
312-707	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILCLDS3	00/00/0000	Prefix Type: RBOC Switch Name: CHCG CANAL EAST DS3 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILCLDS3))
312-710	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILMODS1	00/00/0000	Prefix Type: RBOC Switch Name: CHCG MONROE DS1 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILST55T 🔧 Explore Switch(CLLI: CHCGILMODS1))
312-712	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILSUDS2	00/00/0000	Prefix Type: RBOC Switch Name: CHCG SUPERIOR DS2 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILSUDS2))
312-714	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILCLDS3	00/00/0000	Prefix Type: RBOC Switch Name: CHCG CANAL EAST DS3 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILCLDS3))
312-714 is split into 1,000-number blocks - detail below
312-714-1XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILCLDS3	N/A	Prefix Type: RBOC Switch Name: CHCG CANAL EAST DS3 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILCLDS3))
312-715	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILCLDS0	00/00/0000	Prefix Type: RBOC Switch Name: CHCG CANAL EAST DS0 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILCLDS0))
312-715 is split into 1,000-number blocks - detail below
312-715-0XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILCLDS0	N/A	Prefix Type: RBOC Switch Name: CHCG CANAL EAST DS0 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILCLDS0))
312-715-1XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILCLDS0	N/A	Prefix Type: RBOC Switch Name: CHCG CANAL EAST DS0 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILCLDS0))
312-715-2XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILCLDS0	N/A	Prefix Type: RBOC Switch Name: CHCG CANAL EAST DS0 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILCLDS0))
312-715-3XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILCLDS0	N/A	Prefix Type: RBOC Switch Name: CHCG CANAL EAST DS0 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILCLDS0))
312-715-5XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILCLDS0	N/A	Prefix Type: RBOC Switch Name: CHCG CANAL EAST DS0 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILCLDS0))
312-715-6XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILCLDS0	N/A	Prefix Type: RBOC Switch Name: CHCG CANAL EAST DS0 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILCLDS0))
312-715-9XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILCLDS0	N/A	Prefix Type: RBOC Switch Name: CHCG CANAL EAST DS0 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILCLDS0))
312-716	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILCLDS3	00/00/0000	Prefix Type: RBOC Switch Name: CHCG CANAL EAST DS3 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILCLDS3))
312-726	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILFRDS3	00/00/0000	Prefix Type: RBOC Switch Name: CHCG FRANKLIN DS3 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILFRDS3))
312-727	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILFRDS2	00/00/0000	Prefix Type: RBOC Switch Name: CHCG FRANKLIN DS2 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILFRDS2))
312-729	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILLRDS0	00/00/0000	Prefix Type: RBOC Switch Name: CHCG LAKESHORE Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILLRDS0))
312-732	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILWBDS0	00/00/0000	Prefix Type: RBOC Switch Name: CHCG WABASH DS0 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILWB55T 🔧 Explore Switch(CLLI: CHCGILWBDS0))
312-733	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILMODS1	00/00/0000	Prefix Type: RBOC Switch Name: CHCG MONROE DS1 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILST55T 🔧 Explore Switch(CLLI: CHCGILMODS1))
312-737	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILFRDS4	00/00/0000	Prefix Type: RBOC Switch Name: CHCG FRANKLIN DS4 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILFRDS4))
312-738	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILMODS0	00/00/0000	Prefix Type: RBOC Switch Name: CHCG MONROE DS0 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILST55T 🔧 Explore Switch(CLLI: CHCGILMODS0))
312-739	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILFRDS3	00/00/0000	Prefix Type: RBOC Switch Name: CHCG FRANKLIN DS3 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILFRDS3))
312-742	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILIDDS0	00/00/0000	Prefix Type: RBOC Switch Name: CHCG ILL DEAR DS0 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILIDDS0))
312-743	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILMODS1	11/15/2001	Prefix Type: RBOC Switch Name: CHCG MONROE DS1 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILST55T 🔧 Explore Switch(CLLI: CHCGILMODS1))
312-743 is split into 1,000-number blocks - detail below
312-743-0XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILMODS1	N/A	Prefix Type: RBOC Switch Name: CHCG MONROE DS1 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILST55T 🔧 Explore Switch(CLLI: CHCGILMODS1))
312-743-1XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILMODS1	N/A	Prefix Type: RBOC Switch Name: CHCG MONROE DS1 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILST55T 🔧 Explore Switch(CLLI: CHCGILMODS1))
312-743-2XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILMODS1	N/A	Prefix Type: RBOC Switch Name: CHCG MONROE DS1 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILST55T 🔧 Explore Switch(CLLI: CHCGILMODS1))
312-743-3XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILMODS1	N/A	Prefix Type: RBOC Switch Name: CHCG MONROE DS1 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILST55T 🔧 Explore Switch(CLLI: CHCGILMODS1))
312-743-4XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILMODS1	N/A	Prefix Type: RBOC Switch Name: CHCG MONROE DS1 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILST55T 🔧 Explore Switch(CLLI: CHCGILMODS1))
312-743-5XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILMODS1	N/A	Prefix Type: RBOC Switch Name: CHCG MONROE DS1 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILST55T 🔧 Explore Switch(CLLI: CHCGILMODS1))
312-743-6XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILMODS1	N/A	Prefix Type: RBOC Switch Name: CHCG MONROE DS1 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILST55T 🔧 Explore Switch(CLLI: CHCGILMODS1))
312-743-7XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILMODS1	N/A	Prefix Type: RBOC Switch Name: CHCG MONROE DS1 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILST55T 🔧 Explore Switch(CLLI: CHCGILMODS1))
312-743-8XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILMODS1	N/A	Prefix Type: RBOC Switch Name: CHCG MONROE DS1 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILST55T 🔧 Explore Switch(CLLI: CHCGILMODS1))
312-743-9XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILMODS1	N/A	Prefix Type: RBOC Switch Name: CHCG MONROE DS1 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILST55T 🔧 Explore Switch(CLLI: CHCGILMODS1))
312-744	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILIDDS0	00/00/0000	Prefix Type: RBOC Switch Name: CHCG ILL DEAR DS0 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILIDDS0))
312-745	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILWBDS2	00/00/0000	Prefix Type: RBOC Switch Name: CHCG WABASH DS2 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILWB55T 🔧 Explore Switch(CLLI: CHCGILWBDS2))
312-746	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILMODS1	00/00/0000	Prefix Type: RBOC Switch Name: CHCG MONROE DS1 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILST55T 🔧 Explore Switch(CLLI: CHCGILMODS1))
312-747	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILWBDS2	00/00/0000	Prefix Type: RBOC Switch Name: CHCG WABASH DS2 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILWB55T 🔧 Explore Switch(CLLI: CHCGILWBDS2))
312-750	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILFRDS3	00/00/0000	Prefix Type: RBOC Switch Name: CHCG FRANKLIN DS3 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILFRDS3))
312-751	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILSUDS0	00/00/0000	Prefix Type: RBOC Switch Name: CHCG SUPERIOR DS0 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILSUDS0))
312-755	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILIDDS0	00/00/0000	Prefix Type: RBOC Switch Name: CHCG ILL DEAR DS0 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILIDDS0))
312-756	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILCLDS0	00/00/0000	Prefix Type: RBOC Switch Name: CHCG CANAL EAST DS0 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILCLDS0))
312-756 is split into 1,000-number blocks - detail below
312-756-1XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILCLDS0	N/A	Prefix Type: RBOC Switch Name: CHCG CANAL EAST DS0 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILCLDS0))
312-756-2XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILCLDS0	N/A	Prefix Type: RBOC Switch Name: CHCG CANAL EAST DS0 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILCLDS0))
312-756-3XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILCLDS0	N/A	Prefix Type: RBOC Switch Name: CHCG CANAL EAST DS0 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILCLDS0))
312-756-4XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILCLDS0	N/A	Prefix Type: RBOC Switch Name: CHCG CANAL EAST DS0 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILCLDS0))
312-756-5XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILCLDS0	N/A	Prefix Type: RBOC Switch Name: CHCG CANAL EAST DS0 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILCLDS0))
312-756-6XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILCLDS0	N/A	Prefix Type: RBOC Switch Name: CHCG CANAL EAST DS0 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILCLDS0))
312-759	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILFRDS0	00/00/0000	Prefix Type: RBOC Switch Name: CHCG FRANKLIN DS0 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILFRDS0))
312-759 is split into 1,000-number blocks - detail below
312-759-0XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILFRDS0	N/A	Prefix Type: RBOC Switch Name: CHCG FRANKLIN DS0 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILFRDS0))
312-759-1XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILFRDS0	N/A	Prefix Type: RBOC Switch Name: CHCG FRANKLIN DS0 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILFRDS0))
312-759-2XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILFRDS0	N/A	Prefix Type: RBOC Switch Name: CHCG FRANKLIN DS0 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILFRDS0))
312-759-3XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILFRDS0	N/A	Prefix Type: RBOC Switch Name: CHCG FRANKLIN DS0 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILFRDS0))
312-759-4XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILFRDS0	N/A	Prefix Type: RBOC Switch Name: CHCG FRANKLIN DS0 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILFRDS0))
312-759-5XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILFRDS0	N/A	Prefix Type: RBOC Switch Name: CHCG FRANKLIN DS0 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILFRDS0))
312-759-7XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILFRDS0	N/A	Prefix Type: RBOC Switch Name: CHCG FRANKLIN DS0 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILFRDS0))
312-759-8XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILFRDS0	N/A	Prefix Type: RBOC Switch Name: CHCG FRANKLIN DS0 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILFRDS0))
312-759-9XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILFRDS0	N/A	Prefix Type: RBOC Switch Name: CHCG FRANKLIN DS0 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILFRDS0))
312-762	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILFRDS4	00/00/0000	Prefix Type: RBOC Switch Name: CHCG FRANKLIN DS4 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILFRDS4))
312-765	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILWBDS2	00/00/0000	Prefix Type: RBOC Switch Name: CHCG WABASH DS2 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILWB55T 🔧 Explore Switch(CLLI: CHCGILWBDS2))
312-765 is split into 1,000-number blocks - detail below
312-765-0XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILWBDS2	N/A	Prefix Type: RBOC Switch Name: CHCG WABASH DS2 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILWB55T 🔧 Explore Switch(CLLI: CHCGILWBDS2))
312-765-1XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILWBDS2	N/A	Prefix Type: RBOC Switch Name: CHCG WABASH DS2 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILWB55T 🔧 Explore Switch(CLLI: CHCGILWBDS2))
312-765-2XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILWBDS2	N/A	Prefix Type: RBOC Switch Name: CHCG WABASH DS2 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILWB55T 🔧 Explore Switch(CLLI: CHCGILWBDS2))
312-765-6XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILWBDS2	N/A	Prefix Type: RBOC Switch Name: CHCG WABASH DS2 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILWB55T 🔧 Explore Switch(CLLI: CHCGILWBDS2))
312-765-8XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILWBDS2	N/A	Prefix Type: RBOC Switch Name: CHCG WABASH DS2 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILWB55T 🔧 Explore Switch(CLLI: CHCGILWBDS2))
312-768 is split into 1,000-number blocks - detail below
312-768-2XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILCLDS0	09/17/2002	Prefix Type: RBOC Switch Name: CHCG CANAL EAST DS0 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILCLDS0))
312-770	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILMODS1	00/00/0000	Prefix Type: RBOC Switch Name: CHCG MONROE DS1 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILST55T 🔧 Explore Switch(CLLI: CHCGILMODS1))
312-770 is split into 1,000-number blocks - detail below
312-770-1XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILMODS1	N/A	Prefix Type: RBOC Switch Name: CHCG MONROE DS1 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILST55T 🔧 Explore Switch(CLLI: CHCGILMODS1))
312-770-2XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILMODS1	N/A	Prefix Type: RBOC Switch Name: CHCG MONROE DS1 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILST55T 🔧 Explore Switch(CLLI: CHCGILMODS1))
312-770-3XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILMODS1	N/A	Prefix Type: RBOC Switch Name: CHCG MONROE DS1 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILST55T 🔧 Explore Switch(CLLI: CHCGILMODS1))
312-770-4XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILMODS1	N/A	Prefix Type: RBOC Switch Name: CHCG MONROE DS1 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILST55T 🔧 Explore Switch(CLLI: CHCGILMODS1))
312-770-5XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILMODS1	N/A	Prefix Type: RBOC Switch Name: CHCG MONROE DS1 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILST55T 🔧 Explore Switch(CLLI: CHCGILMODS1))
312-770-6XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILMODS1	N/A	Prefix Type: RBOC Switch Name: CHCG MONROE DS1 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILST55T 🔧 Explore Switch(CLLI: CHCGILMODS1))
312-770-7XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILMODS1	N/A	Prefix Type: RBOC Switch Name: CHCG MONROE DS1 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILST55T 🔧 Explore Switch(CLLI: CHCGILMODS1))
312-770-8XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILMODS1	N/A	Prefix Type: RBOC Switch Name: CHCG MONROE DS1 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILST55T 🔧 Explore Switch(CLLI: CHCGILMODS1))
312-770-9XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILMODS1	N/A	Prefix Type: RBOC Switch Name: CHCG MONROE DS1 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILST55T 🔧 Explore Switch(CLLI: CHCGILMODS1))
312-775	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILCLDS3	00/00/0000	Prefix Type: RBOC Switch Name: CHCG CANAL EAST DS3 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILCLDS3))
312-775 is split into 1,000-number blocks - detail below
312-775-0XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILCLDS3	N/A	Prefix Type: RBOC Switch Name: CHCG CANAL EAST DS3 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILCLDS3))
312-775-3XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILCLDS3	N/A	Prefix Type: RBOC Switch Name: CHCG CANAL EAST DS3 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILCLDS3))
312-775-5XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILCLDS3	N/A	Prefix Type: RBOC Switch Name: CHCG CANAL EAST DS3 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILCLDS3))
312-775-6XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILCLDS3	N/A	Prefix Type: RBOC Switch Name: CHCG CANAL EAST DS3 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILCLDS3))
312-775-7XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILCLDS3	N/A	Prefix Type: RBOC Switch Name: CHCG CANAL EAST DS3 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILCLDS3))
312-775-8XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILCLDS3	N/A	Prefix Type: RBOC Switch Name: CHCG CANAL EAST DS3 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILCLDS3))
312-775-9XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILCLDS3	N/A	Prefix Type: RBOC Switch Name: CHCG CANAL EAST DS3 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILCLDS3))
312-781	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILFRDS3	00/00/0000	Prefix Type: RBOC Switch Name: CHCG FRANKLIN DS3 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILFRDS3))
312-782	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILFRDS4	00/00/0000	Prefix Type: RBOC Switch Name: CHCG FRANKLIN DS4 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILFRDS4))
312-786	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILWBDS3	00/00/0000	Prefix Type: RBOC Switch Name: CHCG WABASH DS3 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILWB55T 🔧 Explore Switch(CLLI: CHCGILWBDS3))
312-787	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILSUDS2	00/00/0000	Prefix Type: RBOC Switch Name: CHCG SUPERIOR DS2 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILSUDS2))
312-788	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILWBDS2	00/00/0000	Prefix Type: RBOC Switch Name: CHCG WABASH DS2 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILWB55T 🔧 Explore Switch(CLLI: CHCGILWBDS2))
312-788 is split into 1,000-number blocks - detail below
312-788-3XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILWBDS2	N/A	Prefix Type: RBOC Switch Name: CHCG WABASH DS2 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILWB55T 🔧 Explore Switch(CLLI: CHCGILWBDS2))
312-788-5XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILWBDS2	N/A	Prefix Type: RBOC Switch Name: CHCG WABASH DS2 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILWB55T 🔧 Explore Switch(CLLI: CHCGILWBDS2))
312-789	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILWBDS0	00/00/0000	Prefix Type: RBOC Switch Name: CHCG WABASH DS0 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILWB55T 🔧 Explore Switch(CLLI: CHCGILWBDS0))
312-789 is split into 1,000-number blocks - detail below
312-789-0XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILWBDS0	N/A	Prefix Type: RBOC Switch Name: CHCG WABASH DS0 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILWB55T 🔧 Explore Switch(CLLI: CHCGILWBDS0))
312-789-1XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILWBDS0	N/A	Prefix Type: RBOC Switch Name: CHCG WABASH DS0 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILWB55T 🔧 Explore Switch(CLLI: CHCGILWBDS0))
312-789-2XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILWBDS0	N/A	Prefix Type: RBOC Switch Name: CHCG WABASH DS0 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILWB55T 🔧 Explore Switch(CLLI: CHCGILWBDS0))
312-789-3XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILWBDS0	N/A	Prefix Type: RBOC Switch Name: CHCG WABASH DS0 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILWB55T 🔧 Explore Switch(CLLI: CHCGILWBDS0))
312-789-6XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILWBDS0	N/A	Prefix Type: RBOC Switch Name: CHCG WABASH DS0 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILWB55T 🔧 Explore Switch(CLLI: CHCGILWBDS0))
312-789-7XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILWBDS0	N/A	Prefix Type: RBOC Switch Name: CHCG WABASH DS0 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILWB55T 🔧 Explore Switch(CLLI: CHCGILWBDS0))
312-789-8XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILWBDS0	N/A	Prefix Type: RBOC Switch Name: CHCG WABASH DS0 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILWB55T 🔧 Explore Switch(CLLI: CHCGILWBDS0))
312-789-9XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILWBDS0	N/A	Prefix Type: RBOC Switch Name: CHCG WABASH DS0 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILWB55T 🔧 Explore Switch(CLLI: CHCGILWBDS0))
312-790	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILSUDS0	00/00/0000	Prefix Type: RBOC Switch Name: CHCG SUPERIOR DS0 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILSUDS0))
312-791	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILCADS0	00/00/0000	Prefix Type: RBOC Switch Name: CHCG CALUMET DS0 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILST55T 🔧 Explore Switch(CLLI: CHCGILCADS0))
312-791 is split into 1,000-number blocks - detail below
312-791-0XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILCADS0	N/A	Prefix Type: RBOC Switch Name: CHCG CALUMET DS0 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILST55T 🔧 Explore Switch(CLLI: CHCGILCADS0))
312-791-1XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILCADS0	N/A	Prefix Type: RBOC Switch Name: CHCG CALUMET DS0 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILST55T 🔧 Explore Switch(CLLI: CHCGILCADS0))
312-791-2XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILCADS0	N/A	Prefix Type: RBOC Switch Name: CHCG CALUMET DS0 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILST55T 🔧 Explore Switch(CLLI: CHCGILCADS0))
312-791-3XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILCADS0	N/A	Prefix Type: RBOC Switch Name: CHCG CALUMET DS0 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILST55T 🔧 Explore Switch(CLLI: CHCGILCADS0))
312-791-4XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILCADS0	N/A	Prefix Type: RBOC Switch Name: CHCG CALUMET DS0 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILST55T 🔧 Explore Switch(CLLI: CHCGILCADS0))
312-791-5XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILCADS0	N/A	Prefix Type: RBOC Switch Name: CHCG CALUMET DS0 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILST55T 🔧 Explore Switch(CLLI: CHCGILCADS0))
312-791-6XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILCADS0	N/A	Prefix Type: RBOC Switch Name: CHCG CALUMET DS0 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILST55T 🔧 Explore Switch(CLLI: CHCGILCADS0))
312-791-7XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILCADS0	N/A	Prefix Type: RBOC Switch Name: CHCG CALUMET DS0 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILST55T 🔧 Explore Switch(CLLI: CHCGILCADS0))
312-791-8XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILCADS0	N/A	Prefix Type: RBOC Switch Name: CHCG CALUMET DS0 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILST55T 🔧 Explore Switch(CLLI: CHCGILCADS0))
312-793	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILFRDS1	00/00/0000	Prefix Type: RBOC Switch Name: CHCG FRANKLIN DS1 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILFRDS1))
312-795	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILFRDS4	00/00/0000	Prefix Type: RBOC Switch Name: CHCG FRANKLIN DS4 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILFRDS4))
312-797	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILFRDS0	00/00/0000	Prefix Type: RBOC Switch Name: CHCG FRANKLIN DS0 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILFRDS0))
312-798	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILCLDS3	00/00/0000	Prefix Type: RBOC Switch Name: CHCG CANAL EAST DS3 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILCLDS3))
312-798 is split into 1,000-number blocks - detail below
312-798-0XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILCLDS3	N/A	Prefix Type: RBOC Switch Name: CHCG CANAL EAST DS3 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILCLDS3))
312-798-1XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILCLDS3	N/A	Prefix Type: RBOC Switch Name: CHCG CANAL EAST DS3 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILCLDS3))
312-798-2XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILCLDS3	N/A	Prefix Type: RBOC Switch Name: CHCG CANAL EAST DS3 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILCLDS3))
312-798-3XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILCLDS3	N/A	Prefix Type: RBOC Switch Name: CHCG CANAL EAST DS3 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILCLDS3))
312-798-4XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILCLDS3	N/A	Prefix Type: RBOC Switch Name: CHCG CANAL EAST DS3 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILCLDS3))
312-798-5XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILCLDS3	N/A	Prefix Type: RBOC Switch Name: CHCG CANAL EAST DS3 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILCLDS3))
312-798-6XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILCLDS3	N/A	Prefix Type: RBOC Switch Name: CHCG CANAL EAST DS3 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILCLDS3))
312-798-7XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILCLDS3	N/A	Prefix Type: RBOC Switch Name: CHCG CANAL EAST DS3 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILCLDS3))
312-798-8XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILCLDS3	N/A	Prefix Type: RBOC Switch Name: CHCG CANAL EAST DS3 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILCLDS3))
312-799	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILSUDS2	00/00/0000	Prefix Type: RBOC Switch Name: CHCG SUPERIOR DS2 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILSUDS2))
312-799 is split into 1,000-number blocks - detail below
312-799-2XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILSUDS2	N/A	Prefix Type: RBOC Switch Name: CHCG SUPERIOR DS2 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILSUDS2))
312-799-3XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILSUDS2	N/A	Prefix Type: RBOC Switch Name: CHCG SUPERIOR DS2 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILSUDS2))
312-799-4XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILSUDS2	N/A	Prefix Type: RBOC Switch Name: CHCG SUPERIOR DS2 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILSUDS2))
312-799-5XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILSUDS2	N/A	Prefix Type: RBOC Switch Name: CHCG SUPERIOR DS2 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILSUDS2))
312-799-6XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILSUDS2	05/31/2000	Prefix Type: RBOC Switch Name: CHCG SUPERIOR DS2 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILSUDS2))
312-799-8XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILSUDS2	09/28/2000	Prefix Type: RBOC Switch Name: CHCG SUPERIOR DS2 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILSUDS2))
312-807	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILFRDS3	00/00/0000	Prefix Type: RBOC Switch Name: CHCG FRANKLIN DS3 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILFRDS3))
312-808	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILCADS0	00/00/0000	Prefix Type: RBOC Switch Name: CHCG CALUMET DS0 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILST55T 🔧 Explore Switch(CLLI: CHCGILCADS0))
312-812	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILFRDS0	00/00/0000	Prefix Type: RBOC Switch Name: CHCG FRANKLIN DS0 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILFRDS0))
312-814	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILFRDS1	00/00/0000	Prefix Type: RBOC Switch Name: CHCG FRANKLIN DS1 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILFRDS1))
312-817	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILIDDS0	00/00/0000	Prefix Type: RBOC Switch Name: CHCG ILL DEAR DS0 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILIDDS0))
312-819	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILLRDS0	00/00/0000	Prefix Type: RBOC Switch Name: CHCG LAKESHORE Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILLRDS0))
312-822	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILIDDS0	00/00/0000	Prefix Type: RBOC Switch Name: CHCG ILL DEAR DS0 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILIDDS0))
312-823	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILWBDS0	00/00/0000	Prefix Type: RBOC Switch Name: CHCG WABASH DS0 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILWB55T 🔧 Explore Switch(CLLI: CHCGILWBDS0))
312-823 is split into 1,000-number blocks - detail below
312-823-1XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILWBDS0	N/A	Prefix Type: RBOC Switch Name: CHCG WABASH DS0 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILWB55T 🔧 Explore Switch(CLLI: CHCGILWBDS0))
312-827	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILFRDS3	00/00/0000	Prefix Type: RBOC Switch Name: CHCG FRANKLIN DS3 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILFRDS3))
312-828	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILIDDS0	00/00/0000	Prefix Type: RBOC Switch Name: CHCG ILL DEAR DS0 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILIDDS0))
312-829	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILMODS0	00/00/0000	Prefix Type: RBOC Switch Name: CHCG MONROE DS0 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILST55T 🔧 Explore Switch(CLLI: CHCGILMODS0))
312-831	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILCLDS3	00/00/0000	Prefix Type: RBOC Switch Name: CHCG CANAL EAST DS3 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILCLDS3))
312-832	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILIDDS0	00/00/0000	Prefix Type: RBOC Switch Name: CHCG ILL DEAR DS0 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILIDDS0))
312-834	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILWBDS2	00/00/0000	Prefix Type: RBOC Switch Name: CHCG WABASH DS2 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILWB55T 🔧 Explore Switch(CLLI: CHCGILWBDS2))
312-834 is split into 1,000-number blocks - detail below
312-834-0XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILWBDS2	N/A	Prefix Type: RBOC Switch Name: CHCG WABASH DS2 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILWB55T 🔧 Explore Switch(CLLI: CHCGILWBDS2))
312-836	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILIDDS0	00/00/0000	Prefix Type: RBOC Switch Name: CHCG ILL DEAR DS0 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILIDDS0))
312-840	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILIDDS0	00/00/0000	Prefix Type: RBOC Switch Name: CHCG ILL DEAR DS0 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILIDDS0))
312-842	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILCADS1	00/00/0000	Prefix Type: RBOC Switch Name: CHCG CALUMET DS1 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILST55T 🔧 Explore Switch(CLLI: CHCGILCADS1))
312-845	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILFRDS3	00/00/0000	Prefix Type: RBOC Switch Name: CHCG FRANKLIN DS3 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILFRDS3))
312-846	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILFRDS3	00/00/0000	Prefix Type: RBOC Switch Name: CHCG FRANKLIN DS3 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILFRDS3))
312-846 is split into 1,000-number blocks - detail below
312-846-2XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILFRDS3	N/A	Prefix Type: RBOC Switch Name: CHCG FRANKLIN DS3 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILFRDS3))
312-849	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILFRDS0	00/00/0000	Prefix Type: RBOC Switch Name: CHCG FRANKLIN DS0 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILFRDS0))
312-850	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILMODS0	00/00/0000	Prefix Type: RBOC Switch Name: CHCG MONROE DS0 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILST55T 🔧 Explore Switch(CLLI: CHCGILMODS0))
312-853	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILFRDS4	00/00/0000	Prefix Type: RBOC Switch Name: CHCG FRANKLIN DS4 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILFRDS4))
312-855	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILFRDS0	00/00/0000	Prefix Type: RBOC Switch Name: CHCG FRANKLIN DS0 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILFRDS0))
312-856	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILLRDS0	00/00/0000	Prefix Type: RBOC Switch Name: CHCG LAKESHORE Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILLRDS0))
312-856 is split into 1,000-number blocks - detail below
312-856-0XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILLRDS0	N/A	Prefix Type: RBOC Switch Name: CHCG LAKESHORE Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILLRDS0))
312-856-1XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILLRDS0	N/A	Prefix Type: RBOC Switch Name: CHCG LAKESHORE Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILLRDS0))
312-856-8XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILLRDS0	N/A	Prefix Type: RBOC Switch Name: CHCG LAKESHORE Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILLRDS0))
312-856-9XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILLRDS0	N/A	Prefix Type: RBOC Switch Name: CHCG LAKESHORE Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILLRDS0))
312-857	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILFRDS0	00/00/0000	Prefix Type: RBOC Switch Name: CHCG FRANKLIN DS0 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILFRDS0))
312-857 is split into 1,000-number blocks - detail below
312-857-0XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILFRDS0	N/A	Prefix Type: RBOC Switch Name: CHCG FRANKLIN DS0 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILFRDS0))
312-857-1XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILFRDS0	N/A	Prefix Type: RBOC Switch Name: CHCG FRANKLIN DS0 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILFRDS0))
312-857-2XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILFRDS0	N/A	Prefix Type: RBOC Switch Name: CHCG FRANKLIN DS0 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILFRDS0))
312-857-7XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILFRDS0	N/A	Prefix Type: RBOC Switch Name: CHCG FRANKLIN DS0 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILFRDS0))
312-857-9XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILFRDS0	N/A	Prefix Type: RBOC Switch Name: CHCG FRANKLIN DS0 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILFRDS0))
312-861	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILLRDS0	00/00/0000	Prefix Type: RBOC Switch Name: CHCG LAKESHORE Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILLRDS0))
312-862	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILFRDS1	01/25/2006	Prefix Type: RBOC Switch Name: CHCG FRANKLIN DS1 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILFRDS1))
312-862 is split into 1,000-number blocks - detail below
312-862-0XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILFRDS1	02/07/2006	Prefix Type: RBOC Switch Name: CHCG FRANKLIN DS1 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILFRDS1))
312-862-1XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILFRDS1	02/07/2006	Prefix Type: RBOC Switch Name: CHCG FRANKLIN DS1 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILFRDS1))
312-862-2XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILFRDS1	02/07/2006	Prefix Type: RBOC Switch Name: CHCG FRANKLIN DS1 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILFRDS1))
312-862-3XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILFRDS1	02/07/2006	Prefix Type: RBOC Switch Name: CHCG FRANKLIN DS1 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILFRDS1))
312-862-4XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILFRDS1	02/07/2006	Prefix Type: RBOC Switch Name: CHCG FRANKLIN DS1 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILFRDS1))
312-862-5XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILFRDS1	02/07/2006	Prefix Type: RBOC Switch Name: CHCG FRANKLIN DS1 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILFRDS1))
312-862-6XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILFRDS1	02/07/2006	Prefix Type: RBOC Switch Name: CHCG FRANKLIN DS1 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILFRDS1))
312-862-7XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILFRDS1	02/07/2006	Prefix Type: RBOC Switch Name: CHCG FRANKLIN DS1 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILFRDS1))
312-862-8XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILFRDS1	02/07/2006	Prefix Type: RBOC Switch Name: CHCG FRANKLIN DS1 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILFRDS1))
312-862-9XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILFRDS1	02/07/2006	Prefix Type: RBOC Switch Name: CHCG FRANKLIN DS1 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILFRDS1))
312-864	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILMODS1	00/00/0000	Prefix Type: RBOC Switch Name: CHCG MONROE DS1 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILST55T 🔧 Explore Switch(CLLI: CHCGILMODS1))
312-867	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILSUDS0	00/00/0000	Prefix Type: RBOC Switch Name: CHCG SUPERIOR DS0 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILSUDS0))
312-869	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILCLDS3	00/00/0000	Prefix Type: RBOC Switch Name: CHCG CANAL EAST DS3 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILCLDS3))
312-869 is split into 1,000-number blocks - detail below
312-869-3XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILCLDS3	N/A	Prefix Type: RBOC Switch Name: CHCG CANAL EAST DS3 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILCLDS3))
312-869-5XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILCLDS3	N/A	Prefix Type: RBOC Switch Name: CHCG CANAL EAST DS3 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILCLDS3))
312-869-6XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILCLDS3	N/A	Prefix Type: RBOC Switch Name: CHCG CANAL EAST DS3 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILCLDS3))
312-869-7XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILCLDS3	N/A	Prefix Type: RBOC Switch Name: CHCG CANAL EAST DS3 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILCLDS3))
312-869-8XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILCLDS3	N/A	Prefix Type: RBOC Switch Name: CHCG CANAL EAST DS3 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILCLDS3))
312-870 is split into 1,000-number blocks - detail below
312-870-8XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILFRDS1	09/29/2000	Prefix Type: RBOC Switch Name: CHCG FRANKLIN DS1 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILFRDS1))
312-875	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILCLDS3	00/00/0000	Prefix Type: RBOC Switch Name: CHCG CANAL EAST DS3 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILCLDS3))
312-876	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILCLDS0	00/00/0000	Prefix Type: RBOC Switch Name: CHCG CANAL EAST DS0 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILCLDS0))
312-879	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILCLDS0	00/00/0000	Prefix Type: RBOC Switch Name: CHCG CANAL EAST DS0 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILCLDS0))
312-879 is split into 1,000-number blocks - detail below
312-879-2XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILCLDS0	N/A	Prefix Type: RBOC Switch Name: CHCG CANAL EAST DS0 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILCLDS0))
312-879-3XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILCLDS0	N/A	Prefix Type: RBOC Switch Name: CHCG CANAL EAST DS0 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILCLDS0))
312-879-4XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILCLDS0	N/A	Prefix Type: RBOC Switch Name: CHCG CANAL EAST DS0 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILCLDS0))
312-879-5XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILCLDS0	N/A	Prefix Type: RBOC Switch Name: CHCG CANAL EAST DS0 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILCLDS0))
312-879-6XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILCLDS0	N/A	Prefix Type: RBOC Switch Name: CHCG CANAL EAST DS0 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILCLDS0))
312-879-7XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILCLDS0	N/A	Prefix Type: RBOC Switch Name: CHCG CANAL EAST DS0 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILCLDS0))
312-879-8XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILCLDS0	N/A	Prefix Type: RBOC Switch Name: CHCG CANAL EAST DS0 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILCLDS0))
312-880	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILWBDS2	00/00/0000	Prefix Type: RBOC Switch Name: CHCG WABASH DS2 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILWB55T 🔧 Explore Switch(CLLI: CHCGILWBDS2))
312-880 is split into 1,000-number blocks - detail below
312-880-0XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILWBDS2	N/A	Prefix Type: RBOC Switch Name: CHCG WABASH DS2 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILWB55T 🔧 Explore Switch(CLLI: CHCGILWBDS2))
312-880-2XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILWBDS2	N/A	Prefix Type: RBOC Switch Name: CHCG WABASH DS2 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILWB55T 🔧 Explore Switch(CLLI: CHCGILWBDS2))
312-880-3XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILWBDS2	N/A	Prefix Type: RBOC Switch Name: CHCG WABASH DS2 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILWB55T 🔧 Explore Switch(CLLI: CHCGILWBDS2))
312-880-5XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILWBDS2	N/A	Prefix Type: RBOC Switch Name: CHCG WABASH DS2 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILWB55T 🔧 Explore Switch(CLLI: CHCGILWBDS2))
312-880-6XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILWBDS2	N/A	Prefix Type: RBOC Switch Name: CHCG WABASH DS2 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILWB55T 🔧 Explore Switch(CLLI: CHCGILWBDS2))
312-881 is split into 1,000-number blocks - detail below
312-881-3XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILCADS1	05/14/2002	Prefix Type: RBOC Switch Name: CHCG CALUMET DS1 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILST55T 🔧 Explore Switch(CLLI: CHCGILCADS1))
312-884 is split into 1,000-number blocks - detail below
312-884-6XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILFRDS4	09/27/2000	Prefix Type: RBOC Switch Name: CHCG FRANKLIN DS4 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILFRDS4))
312-886	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILWBDS0	00/00/0000	Prefix Type: RBOC Switch Name: CHCG WABASH DS0 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILWB55T 🔧 Explore Switch(CLLI: CHCGILWBDS0))
312-887	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILCLDS0	00/00/0000	Prefix Type: RBOC Switch Name: CHCG CANAL EAST DS0 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILCLDS0))
312-887 is split into 1,000-number blocks - detail below
312-887-3XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILCLDS0	N/A	Prefix Type: RBOC Switch Name: CHCG CANAL EAST DS0 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILCLDS0))
312-887-4XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILCLDS0	N/A	Prefix Type: RBOC Switch Name: CHCG CANAL EAST DS0 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILCLDS0))
312-887-5XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILCLDS0	N/A	Prefix Type: RBOC Switch Name: CHCG CANAL EAST DS0 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILCLDS0))
312-887-6XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILCLDS0	N/A	Prefix Type: RBOC Switch Name: CHCG CANAL EAST DS0 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILCLDS0))
312-887-7XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILCLDS0	N/A	Prefix Type: RBOC Switch Name: CHCG CANAL EAST DS0 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILCLDS0))
312-887-8XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILCLDS0	N/A	Prefix Type: RBOC Switch Name: CHCG CANAL EAST DS0 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILCLDS0))
312-899	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILFRDS0	00/00/0000	Prefix Type: RBOC Switch Name: CHCG FRANKLIN DS0 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILFRDS0))
312-899 is split into 1,000-number blocks - detail below
312-899-0XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILFRDS0	N/A	Prefix Type: RBOC Switch Name: CHCG FRANKLIN DS0 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILFRDS0))
312-899-1XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILFRDS0	N/A	Prefix Type: RBOC Switch Name: CHCG FRANKLIN DS0 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILFRDS0))
312-899-2XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILFRDS0	N/A	Prefix Type: RBOC Switch Name: CHCG FRANKLIN DS0 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILFRDS0))
312-899-3XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILFRDS0	N/A	Prefix Type: RBOC Switch Name: CHCG FRANKLIN DS0 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILFRDS0))
312-899-4XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILFRDS0	N/A	Prefix Type: RBOC Switch Name: CHCG FRANKLIN DS0 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILFRDS0))
312-899-5XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILFRDS0	N/A	Prefix Type: RBOC Switch Name: CHCG FRANKLIN DS0 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILFRDS0))
312-899-7XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILFRDS0	N/A	Prefix Type: RBOC Switch Name: CHCG FRANKLIN DS0 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILFRDS0))
312-899-8XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILFRDS0	N/A	Prefix Type: RBOC Switch Name: CHCG FRANKLIN DS0 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILFRDS0))
312-899-9XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILFRDS0	N/A	Prefix Type: RBOC Switch Name: CHCG FRANKLIN DS0 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILFRDS0))
312-902	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILCLDS3	00/00/0000	Prefix Type: RBOC Switch Name: CHCG CANAL EAST DS3 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILCLDS3))
312-904	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILFRDS1	00/00/0000	Prefix Type: RBOC Switch Name: CHCG FRANKLIN DS1 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILFRDS1))
312-905	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILFRDS1	00/00/0000	Prefix Type: RBOC Switch Name: CHCG FRANKLIN DS1 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILFRDS1))
312-905 is split into 1,000-number blocks - detail below
312-905-0XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILFRDS1	N/A	Prefix Type: RBOC Switch Name: CHCG FRANKLIN DS1 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILFRDS1))
312-905-1XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILFRDS1	N/A	Prefix Type: RBOC Switch Name: CHCG FRANKLIN DS1 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILFRDS1))
312-905-2XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILFRDS1	N/A	Prefix Type: RBOC Switch Name: CHCG FRANKLIN DS1 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILFRDS1))
312-905-6XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILFRDS1	N/A	Prefix Type: RBOC Switch Name: CHCG FRANKLIN DS1 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILFRDS1))
312-905-7XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILFRDS1	N/A	Prefix Type: RBOC Switch Name: CHCG FRANKLIN DS1 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILFRDS1))
312-905-8XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILFRDS1	N/A	Prefix Type: RBOC Switch Name: CHCG FRANKLIN DS1 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILFRDS1))
312-905-9XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILFRDS1	N/A	Prefix Type: RBOC Switch Name: CHCG FRANKLIN DS1 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILFRDS1))
312-906	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILCLDS3	00/00/0000	Prefix Type: RBOC Switch Name: CHCG CANAL EAST DS3 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILCLDS3))
312-906 is split into 1,000-number blocks - detail below
312-906-0XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILCLDS3	N/A	Prefix Type: RBOC Switch Name: CHCG CANAL EAST DS3 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILCLDS3))
312-906-1XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILCLDS3	N/A	Prefix Type: RBOC Switch Name: CHCG CANAL EAST DS3 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILCLDS3))
312-906-2XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILCLDS3	N/A	Prefix Type: RBOC Switch Name: CHCG CANAL EAST DS3 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILCLDS3))
312-906-3XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILCLDS3	N/A	Prefix Type: RBOC Switch Name: CHCG CANAL EAST DS3 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILCLDS3))
312-906-4XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILCLDS3	N/A	Prefix Type: RBOC Switch Name: CHCG CANAL EAST DS3 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILCLDS3))
312-906-5XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILCLDS3	N/A	Prefix Type: RBOC Switch Name: CHCG CANAL EAST DS3 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILCLDS3))
312-906-6XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILCLDS3	N/A	Prefix Type: RBOC Switch Name: CHCG CANAL EAST DS3 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILCLDS3))
312-906-8XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILCLDS3	N/A	Prefix Type: RBOC Switch Name: CHCG CANAL EAST DS3 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILCLDS3))
312-906-9XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILCLDS3	N/A	Prefix Type: RBOC Switch Name: CHCG CANAL EAST DS3 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILCLDS3))
312-908	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILSUDS2	00/00/0000	Prefix Type: RBOC Switch Name: CHCG SUPERIOR DS2 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILSUDS2))
312-912	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILCLDS0	00/00/0000	Prefix Type: RBOC Switch Name: CHCG CANAL EAST DS0 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILCLDS0))
312-913	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILWBDS3	00/00/0000	Prefix Type: RBOC Switch Name: CHCG WABASH DS3 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILWB55T 🔧 Explore Switch(CLLI: CHCGILWBDS3))
312-915	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILSUDS2	00/00/0000	Prefix Type: RBOC Switch Name: CHCG SUPERIOR DS2 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILSUDS2))
312-917	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILFRDS3	00/00/0000	Prefix Type: RBOC Switch Name: CHCG FRANKLIN DS3 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILFRDS3))
312-920	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILFRDS3	00/00/0000	Prefix Type: RBOC Switch Name: CHCG FRANKLIN DS3 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILFRDS3))
312-921	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILSUDS2	07/21/2008	Prefix Type: RBOC Switch Name: CHCG SUPERIOR DS2 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILSUDS2))
312-921 is split into 1,000-number blocks - detail below
312-921-0XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILSUDS2	07/22/2008	Prefix Type: RBOC Switch Name: CHCG SUPERIOR DS2 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILSUDS2))
312-921-1XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILSUDS2	07/22/2008	Prefix Type: RBOC Switch Name: CHCG SUPERIOR DS2 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILSUDS2))
312-921-2XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILSUDS2	07/22/2008	Prefix Type: RBOC Switch Name: CHCG SUPERIOR DS2 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILSUDS2))
312-921-3XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILSUDS2	07/22/2008	Prefix Type: RBOC Switch Name: CHCG SUPERIOR DS2 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILSUDS2))
312-921-4XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILSUDS2	07/22/2008	Prefix Type: RBOC Switch Name: CHCG SUPERIOR DS2 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILSUDS2))
312-921-5XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILSUDS2	07/22/2008	Prefix Type: RBOC Switch Name: CHCG SUPERIOR DS2 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILSUDS2))
312-921-6XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILSUDS2	07/22/2008	Prefix Type: RBOC Switch Name: CHCG SUPERIOR DS2 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILSUDS2))
312-921-7XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILSUDS2	07/22/2008	Prefix Type: RBOC Switch Name: CHCG SUPERIOR DS2 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILSUDS2))
312-921-8XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILSUDS2	07/22/2008	Prefix Type: RBOC Switch Name: CHCG SUPERIOR DS2 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILSUDS2))
312-921-9XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILSUDS2	07/22/2008	Prefix Type: RBOC Switch Name: CHCG SUPERIOR DS2 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILSUDS2))
312-922	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILWBDS3	00/00/0000	Prefix Type: RBOC Switch Name: CHCG WABASH DS3 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILWB55T 🔧 Explore Switch(CLLI: CHCGILWBDS3))
312-923	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILIDDS0	00/00/0000	Prefix Type: RBOC Switch Name: CHCG ILL DEAR DS0 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILIDDS0))
312-926	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILSUDS2	00/00/0000	Prefix Type: RBOC Switch Name: CHCG SUPERIOR DS2 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILSUDS2))
312-928	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILCLDS0	00/00/0000	Prefix Type: RBOC Switch Name: CHCG CANAL EAST DS0 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILCLDS0))
312-928 is split into 1,000-number blocks - detail below
312-928-0XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILCLDS0	N/A	Prefix Type: RBOC Switch Name: CHCG CANAL EAST DS0 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILCLDS0))
312-928-1XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILCLDS0	N/A	Prefix Type: RBOC Switch Name: CHCG CANAL EAST DS0 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILCLDS0))
312-928-2XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILCLDS0	N/A	Prefix Type: RBOC Switch Name: CHCG CANAL EAST DS0 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILCLDS0))
312-928-3XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILCLDS0	N/A	Prefix Type: RBOC Switch Name: CHCG CANAL EAST DS0 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILCLDS0))
312-928-4XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILCLDS0	N/A	Prefix Type: RBOC Switch Name: CHCG CANAL EAST DS0 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILCLDS0))
312-928-5XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILCLDS0	N/A	Prefix Type: RBOC Switch Name: CHCG CANAL EAST DS0 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILCLDS0))
312-928-6XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILCLDS0	N/A	Prefix Type: RBOC Switch Name: CHCG CANAL EAST DS0 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILCLDS0))
312-928-7XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILCLDS0	N/A	Prefix Type: RBOC Switch Name: CHCG CANAL EAST DS0 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILCLDS0))
312-928-8XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILCLDS0	N/A	Prefix Type: RBOC Switch Name: CHCG CANAL EAST DS0 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILCLDS0))
312-930	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILCLDS3	00/00/0000	Prefix Type: RBOC Switch Name: CHCG CANAL EAST DS3 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILCLDS3))
312-931	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILFRDS4	00/00/0000	Prefix Type: RBOC Switch Name: CHCG FRANKLIN DS4 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILFRDS4))
312-931 is split into 1,000-number blocks - detail below
312-931-1XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILFRDS4	N/A	Prefix Type: RBOC Switch Name: CHCG FRANKLIN DS4 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILFRDS4))
312-931-2XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILFRDS4	N/A	Prefix Type: RBOC Switch Name: CHCG FRANKLIN DS4 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILFRDS4))
312-931-9XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILFRDS4	N/A	Prefix Type: RBOC Switch Name: CHCG FRANKLIN DS4 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILFRDS4))
312-932	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILSUDS0	00/00/0000	Prefix Type: RBOC Switch Name: CHCG SUPERIOR DS0 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILSUDS0))
312-932 is split into 1,000-number blocks - detail below
312-932-0XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILSUDS0	N/A	Prefix Type: RBOC Switch Name: CHCG SUPERIOR DS0 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILSUDS0))
312-932-1XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILSUDS0	N/A	Prefix Type: RBOC Switch Name: CHCG SUPERIOR DS0 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILSUDS0))
312-932-2XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILSUDS0	N/A	Prefix Type: RBOC Switch Name: CHCG SUPERIOR DS0 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILSUDS0))
312-932-3XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILSUDS0	N/A	Prefix Type: RBOC Switch Name: CHCG SUPERIOR DS0 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILSUDS0))
312-932-4XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILSUDS0	N/A	Prefix Type: RBOC Switch Name: CHCG SUPERIOR DS0 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILSUDS0))
312-932-8XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILSUDS0	N/A	Prefix Type: RBOC Switch Name: CHCG SUPERIOR DS0 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILSUDS0))
312-932-9XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILSUDS0	N/A	Prefix Type: RBOC Switch Name: CHCG SUPERIOR DS0 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILSUDS0))
312-935	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILWBDS3	00/00/0000	Prefix Type: RBOC Switch Name: CHCG WABASH DS3 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILWB55T 🔧 Explore Switch(CLLI: CHCGILWBDS3))
312-936	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILFRDS4	00/00/0000	Prefix Type: RBOC Switch Name: CHCG FRANKLIN DS4 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILFRDS4))
312-938	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILLRDS0	00/00/0000	Prefix Type: RBOC Switch Name: CHCG LAKESHORE Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILLRDS0))
312-939	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILWBDS0	00/00/0000	Prefix Type: RBOC Switch Name: CHCG WABASH DS0 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILWB55T 🔧 Explore Switch(CLLI: CHCGILWBDS0))
312-942	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILMODS1	00/00/0000	Prefix Type: RBOC Switch Name: CHCG MONROE DS1 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILST55T 🔧 Explore Switch(CLLI: CHCGILMODS1))
312-943	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILSUDS2	00/00/0000	Prefix Type: RBOC Switch Name: CHCG SUPERIOR DS2 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILSUDS2))
312-944	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILSUDS2	00/00/0000	Prefix Type: RBOC Switch Name: CHCG SUPERIOR DS2 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILSUDS2))
312-945	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILCADS0	00/00/0000	Prefix Type: RBOC Switch Name: CHCG CALUMET DS0 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILST55T 🔧 Explore Switch(CLLI: CHCGILCADS0))
312-945 is split into 1,000-number blocks - detail below
312-945-3XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILCADS0	N/A	Prefix Type: RBOC Switch Name: CHCG CALUMET DS0 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILST55T 🔧 Explore Switch(CLLI: CHCGILCADS0))
312-945-4XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILCADS0	N/A	Prefix Type: RBOC Switch Name: CHCG CALUMET DS0 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILST55T 🔧 Explore Switch(CLLI: CHCGILCADS0))
312-946	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILLRDS0	00/00/0000	Prefix Type: RBOC Switch Name: CHCG LAKESHORE Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILLRDS0))
312-947	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILMODS1	11/18/2010	Prefix Type: RBOC Switch Name: CHCG MONROE DS1 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILST55T 🔧 Explore Switch(CLLI: CHCGILMODS1))
312-947 is split into 1,000-number blocks - detail below
312-947-0XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILMODS1	11/22/2010	Prefix Type: RBOC Switch Name: CHCG MONROE DS1 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILST55T 🔧 Explore Switch(CLLI: CHCGILMODS1))
312-947-1XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILMODS1	11/22/2010	Prefix Type: RBOC Switch Name: CHCG MONROE DS1 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILST55T 🔧 Explore Switch(CLLI: CHCGILMODS1))
312-947-2XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILMODS1	11/22/2010	Prefix Type: RBOC Switch Name: CHCG MONROE DS1 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILST55T 🔧 Explore Switch(CLLI: CHCGILMODS1))
312-947-3XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILMODS1	11/22/2010	Prefix Type: RBOC Switch Name: CHCG MONROE DS1 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILST55T 🔧 Explore Switch(CLLI: CHCGILMODS1))
312-947-4XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILMODS1	11/22/2010	Prefix Type: RBOC Switch Name: CHCG MONROE DS1 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILST55T 🔧 Explore Switch(CLLI: CHCGILMODS1))
312-947-5XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILMODS1	11/22/2010	Prefix Type: RBOC Switch Name: CHCG MONROE DS1 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILST55T 🔧 Explore Switch(CLLI: CHCGILMODS1))
312-947-6XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILMODS1	11/22/2010	Prefix Type: RBOC Switch Name: CHCG MONROE DS1 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILST55T 🔧 Explore Switch(CLLI: CHCGILMODS1))
312-947-7XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILMODS1	11/22/2010	Prefix Type: RBOC Switch Name: CHCG MONROE DS1 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILST55T 🔧 Explore Switch(CLLI: CHCGILMODS1))
312-947-8XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILMODS1	11/22/2010	Prefix Type: RBOC Switch Name: CHCG MONROE DS1 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILST55T 🔧 Explore Switch(CLLI: CHCGILMODS1))
312-947-9XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILMODS1	11/22/2010	Prefix Type: RBOC Switch Name: CHCG MONROE DS1 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILST55T 🔧 Explore Switch(CLLI: CHCGILMODS1))
312-948 is split into 1,000-number blocks - detail below
312-948-1XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILMODS0	05/14/2002	Prefix Type: RBOC Switch Name: CHCG MONROE DS0 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILST55T 🔧 Explore Switch(CLLI: CHCGILMODS0))
312-948-2XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILMODS0	05/14/2002	Prefix Type: RBOC Switch Name: CHCG MONROE DS0 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILST55T 🔧 Explore Switch(CLLI: CHCGILMODS0))
312-949	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILCADS1	00/00/0000	Prefix Type: RBOC Switch Name: CHCG CALUMET DS1 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILST55T 🔧 Explore Switch(CLLI: CHCGILCADS1))
312-951	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILSUDS2	00/00/0000	Prefix Type: RBOC Switch Name: CHCG SUPERIOR DS2 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILSUDS2))
312-951 is split into 1,000-number blocks - detail below
312-951-0XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILSUDS2	N/A	Prefix Type: RBOC Switch Name: CHCG SUPERIOR DS2 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILSUDS2))
312-951-1XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILSUDS2	N/A	Prefix Type: RBOC Switch Name: CHCG SUPERIOR DS2 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILSUDS2))
312-951-2XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILSUDS2	N/A	Prefix Type: RBOC Switch Name: CHCG SUPERIOR DS2 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILSUDS2))
312-951-4XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILSUDS2	N/A	Prefix Type: RBOC Switch Name: CHCG SUPERIOR DS2 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILSUDS2))
312-951-5XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILSUDS2	N/A	Prefix Type: RBOC Switch Name: CHCG SUPERIOR DS2 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILSUDS2))
312-951-6XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILSUDS2	N/A	Prefix Type: RBOC Switch Name: CHCG SUPERIOR DS2 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILSUDS2))
312-951-7XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILSUDS2	N/A	Prefix Type: RBOC Switch Name: CHCG SUPERIOR DS2 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILSUDS2))
312-951-8XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILSUDS2	N/A	Prefix Type: RBOC Switch Name: CHCG SUPERIOR DS2 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILSUDS2))
312-951-9XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILSUDS2	N/A	Prefix Type: RBOC Switch Name: CHCG SUPERIOR DS2 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILSUDS2))
312-954	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILCLDS3	00/00/0000	Prefix Type: RBOC Switch Name: CHCG CANAL EAST DS3 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILCLDS3))
312-957	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILWBDS2	00/00/0000	Prefix Type: RBOC Switch Name: CHCG WABASH DS2 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILWB55T 🔧 Explore Switch(CLLI: CHCGILWBDS2))
312-957 is split into 1,000-number blocks - detail below
312-957-0XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILWBDS2	N/A	Prefix Type: RBOC Switch Name: CHCG WABASH DS2 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILWB55T 🔧 Explore Switch(CLLI: CHCGILWBDS2))
312-957-1XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILWBDS2	N/A	Prefix Type: RBOC Switch Name: CHCG WABASH DS2 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILWB55T 🔧 Explore Switch(CLLI: CHCGILWBDS2))
312-957-2XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILWBDS2	N/A	Prefix Type: RBOC Switch Name: CHCG WABASH DS2 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILWB55T 🔧 Explore Switch(CLLI: CHCGILWBDS2))
312-957-3XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILWBDS2	N/A	Prefix Type: RBOC Switch Name: CHCG WABASH DS2 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILWB55T 🔧 Explore Switch(CLLI: CHCGILWBDS2))
312-957-9XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILWBDS2	N/A	Prefix Type: RBOC Switch Name: CHCG WABASH DS2 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILWB55T 🔧 Explore Switch(CLLI: CHCGILWBDS2))
312-960	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILFRDS3	00/00/0000	Prefix Type: RBOC Switch Name: CHCG FRANKLIN DS3 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILFRDS3))
312-960 is split into 1,000-number blocks - detail below
312-960-0XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILFRDS3	N/A	Prefix Type: RBOC Switch Name: CHCG FRANKLIN DS3 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILFRDS3))
312-960-1XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILFRDS3	N/A	Prefix Type: RBOC Switch Name: CHCG FRANKLIN DS3 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILFRDS3))
312-960-2XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILFRDS3	N/A	Prefix Type: RBOC Switch Name: CHCG FRANKLIN DS3 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILFRDS3))
312-960-3XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILFRDS3	N/A	Prefix Type: RBOC Switch Name: CHCG FRANKLIN DS3 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILFRDS3))
312-960-5XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILFRDS3	N/A	Prefix Type: RBOC Switch Name: CHCG FRANKLIN DS3 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILFRDS3))
312-960-6XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILFRDS3	N/A	Prefix Type: RBOC Switch Name: CHCG FRANKLIN DS3 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILFRDS3))
312-960-7XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILFRDS3	N/A	Prefix Type: RBOC Switch Name: CHCG FRANKLIN DS3 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILFRDS3))
312-960-8XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILFRDS3	N/A	Prefix Type: RBOC Switch Name: CHCG FRANKLIN DS3 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILFRDS3))
312-970	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILSUDS2	00/00/0000	Prefix Type: RBOC Switch Name: CHCG SUPERIOR DS2 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILSUDS2))
312-970 is split into 1,000-number blocks - detail below
312-970-2XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILSUDS2	N/A	Prefix Type: RBOC Switch Name: CHCG SUPERIOR DS2 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILSUDS2))
312-970-3XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILSUDS2	N/A	Prefix Type: RBOC Switch Name: CHCG SUPERIOR DS2 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILSUDS2))
312-970-5XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILSUDS2	N/A	Prefix Type: RBOC Switch Name: CHCG SUPERIOR DS2 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILSUDS2))
312-970-7XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILSUDS2	04/19/2001	Prefix Type: RBOC Switch Name: CHCG SUPERIOR DS2 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILSUDS2))
312-970-8XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILSUDS2	N/A	Prefix Type: RBOC Switch Name: CHCG SUPERIOR DS2 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILSUDS2))
312-974	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILWBDS2	00/00/0000	Prefix Type: RBOC Switch Name: CHCG WABASH DS2 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILWB55T 🔧 Explore Switch(CLLI: CHCGILWBDS2))
312-977	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILFRDS3	00/00/0000	Prefix Type: RBOC Switch Name: CHCG FRANKLIN DS3 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILFRDS3))
312-979	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILSUDS0	00/00/0000	Prefix Type: RBOC Switch Name: CHCG SUPERIOR DS0 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILSUDS0))
312-981 is split into 1,000-number blocks - detail below
312-981-1XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILSUDS2	11/19/2001	Prefix Type: RBOC Switch Name: CHCG SUPERIOR DS2 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILSUDS2))
312-981-2XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILSUDS2	11/12/2001	Prefix Type: RBOC Switch Name: CHCG SUPERIOR DS2 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILSUDS2))
312-981-3XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILSUDS2	11/12/2001	Prefix Type: RBOC Switch Name: CHCG SUPERIOR DS2 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILSUDS2))
312-981-4XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILSUDS2	04/21/2000	Prefix Type: RBOC Switch Name: CHCG SUPERIOR DS2 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILSUDS2))
312-981-6XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILSUDS1	04/21/2000	Prefix Type: RBOC Switch Name: CHCG SUPERIOR DS1 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILSUDS1))
312-983	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILWBDS0	00/00/0000	Prefix Type: RBOC Switch Name: CHCG WABASH DS0 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILWB55T 🔧 Explore Switch(CLLI: CHCGILWBDS0))
312-983 is split into 1,000-number blocks - detail below
312-983-1XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILWBDS0	N/A	Prefix Type: RBOC Switch Name: CHCG WABASH DS0 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILWB55T 🔧 Explore Switch(CLLI: CHCGILWBDS0))
312-983-4XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILWBDS0	N/A	Prefix Type: RBOC Switch Name: CHCG WABASH DS0 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILWB55T 🔧 Explore Switch(CLLI: CHCGILWBDS0))
312-983-5XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILWBDS0	N/A	Prefix Type: RBOC Switch Name: CHCG WABASH DS0 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILWB55T 🔧 Explore Switch(CLLI: CHCGILWBDS0))
312-983-6XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILWBDS0	N/A	Prefix Type: RBOC Switch Name: CHCG WABASH DS0 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILWB55T 🔧 Explore Switch(CLLI: CHCGILWBDS0))
312-983-7XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILWBDS0	N/A	Prefix Type: RBOC Switch Name: CHCG WABASH DS0 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILWB55T 🔧 Explore Switch(CLLI: CHCGILWBDS0))
312-983-8XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILWBDS0	N/A	Prefix Type: RBOC Switch Name: CHCG WABASH DS0 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILWB55T 🔧 Explore Switch(CLLI: CHCGILWBDS0))
312-983-9XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILWBDS0	N/A	Prefix Type: RBOC Switch Name: CHCG WABASH DS0 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILWB55T 🔧 Explore Switch(CLLI: CHCGILWBDS0))
312-984	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILFRDS0	00/00/0000	Prefix Type: RBOC Switch Name: CHCG FRANKLIN DS0 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILFRDS0))
312-985 is split into 1,000-number blocks - detail below
312-985-2XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILCLDS3	05/19/2000	Prefix Type: RBOC Switch Name: CHCG CANAL EAST DS3 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILCLDS3))
312-985-3XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILCLDS3	05/19/2000	Prefix Type: RBOC Switch Name: CHCG CANAL EAST DS3 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILCLDS3))
312-985-4XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILCLDS3	05/19/2000	Prefix Type: RBOC Switch Name: CHCG CANAL EAST DS3 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILCLDS3))
312-985-8XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILCLDS3	03/29/2000	Prefix Type: RBOC Switch Name: CHCG CANAL EAST DS3 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILCLDS3))
312-986	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILWBDS3	00/00/0000	Prefix Type: RBOC Switch Name: CHCG WABASH DS3 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILWB55T 🔧 Explore Switch(CLLI: CHCGILWBDS3))
312-987	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILWBDS2	00/00/0000	Prefix Type: RBOC Switch Name: CHCG WABASH DS2 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILWB55T 🔧 Explore Switch(CLLI: CHCGILWBDS2))
312-988	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILSUDS2	00/00/0000	Prefix Type: RBOC Switch Name: CHCG SUPERIOR DS2 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILSUDS2))
312-988 is split into 1,000-number blocks - detail below
312-988-1XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILSUDS2	N/A	Prefix Type: RBOC Switch Name: CHCG SUPERIOR DS2 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILSUDS2))
312-988-2XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILSUDS2	N/A	Prefix Type: RBOC Switch Name: CHCG SUPERIOR DS2 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILSUDS2))
312-988-3XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILSUDS2	N/A	Prefix Type: RBOC Switch Name: CHCG SUPERIOR DS2 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILSUDS2))
312-988-4XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILSUDS2	N/A	Prefix Type: RBOC Switch Name: CHCG SUPERIOR DS2 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILSUDS2))
312-988-5XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILSUDS2	N/A	Prefix Type: RBOC Switch Name: CHCG SUPERIOR DS2 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILSUDS2))
312-988-6XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILSUDS2	N/A	Prefix Type: RBOC Switch Name: CHCG SUPERIOR DS2 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILSUDS2))
312-988-7XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILSUDS2	N/A	Prefix Type: RBOC Switch Name: CHCG SUPERIOR DS2 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILSUDS2))
312-988-8XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILSUDS2	N/A	Prefix Type: RBOC Switch Name: CHCG SUPERIOR DS2 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILSUDS2))
312-988-9XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILSUDS2	N/A	Prefix Type: RBOC Switch Name: CHCG SUPERIOR DS2 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILSUDS2))
312-992	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILFRDS1	00/00/0000	Prefix Type: RBOC Switch Name: CHCG FRANKLIN DS1 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILFRDS1))
312-993	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILCLDS0	00/00/0000	Prefix Type: RBOC Switch Name: CHCG CANAL EAST DS0 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILCLDS0))
312-993 is split into 1,000-number blocks - detail below
312-993-0XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILCLDS0	N/A	Prefix Type: RBOC Switch Name: CHCG CANAL EAST DS0 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILCLDS0))
312-993-1XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILCLDS0	N/A	Prefix Type: RBOC Switch Name: CHCG CANAL EAST DS0 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILCLDS0))
312-993-2XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILCLDS0	N/A	Prefix Type: RBOC Switch Name: CHCG CANAL EAST DS0 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILCLDS0))
312-993-3XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILCLDS0	N/A	Prefix Type: RBOC Switch Name: CHCG CANAL EAST DS0 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILCLDS0))
312-993-4XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILCLDS0	N/A	Prefix Type: RBOC Switch Name: CHCG CANAL EAST DS0 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILCLDS0))
312-993-5XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILCLDS0	N/A	Prefix Type: RBOC Switch Name: CHCG CANAL EAST DS0 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILCLDS0))
312-993-6XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILCLDS0	N/A	Prefix Type: RBOC Switch Name: CHCG CANAL EAST DS0 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILCLDS0))
312-993-7XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILCLDS0	N/A	Prefix Type: RBOC Switch Name: CHCG CANAL EAST DS0 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILCLDS0))
312-993-8XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILCLDS0	N/A	Prefix Type: RBOC Switch Name: CHCG CANAL EAST DS0 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILCLDS0))
312-996	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILMODS1	00/00/0000	Prefix Type: RBOC Switch Name: CHCG MONROE DS1 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILST55T 🔧 Explore Switch(CLLI: CHCGILMODS1))
312-997	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILMODS1	00/00/0000	Prefix Type: RBOC Switch Name: CHCG MONROE DS1 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILST55T 🔧 Explore Switch(CLLI: CHCGILMODS1))
312-997 is split into 1,000-number blocks - detail below
312-997-0XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILMODS1	N/A	Prefix Type: RBOC Switch Name: CHCG MONROE DS1 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILST55T 🔧 Explore Switch(CLLI: CHCGILMODS1))
312-997-1XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILMODS1	N/A	Prefix Type: RBOC Switch Name: CHCG MONROE DS1 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILST55T 🔧 Explore Switch(CLLI: CHCGILMODS1))
312-997-2XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILMODS1	N/A	Prefix Type: RBOC Switch Name: CHCG MONROE DS1 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILST55T 🔧 Explore Switch(CLLI: CHCGILMODS1))
312-997-3XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILMODS1	N/A	Prefix Type: RBOC Switch Name: CHCG MONROE DS1 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILST55T 🔧 Explore Switch(CLLI: CHCGILMODS1))
312-997-4XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILMODS1	N/A	Prefix Type: RBOC Switch Name: CHCG MONROE DS1 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILST55T 🔧 Explore Switch(CLLI: CHCGILMODS1))
312-997-6XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILMODS1	N/A	Prefix Type: RBOC Switch Name: CHCG MONROE DS1 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILST55T 🔧 Explore Switch(CLLI: CHCGILMODS1))
312-997-7XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILMODS1	N/A	Prefix Type: RBOC Switch Name: CHCG MONROE DS1 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILST55T 🔧 Explore Switch(CLLI: CHCGILMODS1))
312-997-8XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILMODS1	N/A	Prefix Type: RBOC Switch Name: CHCG MONROE DS1 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILST55T 🔧 Explore Switch(CLLI: CHCGILMODS1))
312-997-9XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILMODS1	N/A	Prefix Type: RBOC Switch Name: CHCG MONROE DS1 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILST55T 🔧 Explore Switch(CLLI: CHCGILMODS1))
331-221	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	ELMHURST	EMHRILETDS0	01/21/2009	Prefix Type: RBOC Switch Name: ELMHURST Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: NCHCILNC20T 🔧 Explore Switch(CLLI: EMHRILETDS0))
331-221 is split into 1,000-number blocks - detail below
331-221-0XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	ELMHURST	EMHRILETDS0	01/22/2009	Prefix Type: RBOC Switch Name: ELMHURST Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: NCHCILNC20T 🔧 Explore Switch(CLLI: EMHRILETDS0))
331-221-1XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	ELMHURST	EMHRILETDS0	01/22/2009	Prefix Type: RBOC Switch Name: ELMHURST Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: NCHCILNC20T 🔧 Explore Switch(CLLI: EMHRILETDS0))
331-221-2XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	ELMHURST	EMHRILETDS0	01/22/2009	Prefix Type: RBOC Switch Name: ELMHURST Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: NCHCILNC20T 🔧 Explore Switch(CLLI: EMHRILETDS0))
331-221-3XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	ELMHURST	EMHRILETDS0	01/22/2009	Prefix Type: RBOC Switch Name: ELMHURST Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: NCHCILNC20T 🔧 Explore Switch(CLLI: EMHRILETDS0))
331-221-4XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	ELMHURST	EMHRILETDS0	01/22/2009	Prefix Type: RBOC Switch Name: ELMHURST Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: NCHCILNC20T 🔧 Explore Switch(CLLI: EMHRILETDS0))
331-221-5XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	ELMHURST	EMHRILETDS0	01/22/2009	Prefix Type: RBOC Switch Name: ELMHURST Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: NCHCILNC20T 🔧 Explore Switch(CLLI: EMHRILETDS0))
331-221-6XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	ELMHURST	EMHRILETDS0	01/22/2009	Prefix Type: RBOC Switch Name: ELMHURST Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: NCHCILNC20T 🔧 Explore Switch(CLLI: EMHRILETDS0))
331-221-7XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	ELMHURST	EMHRILETDS0	01/22/2009	Prefix Type: RBOC Switch Name: ELMHURST Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: NCHCILNC20T 🔧 Explore Switch(CLLI: EMHRILETDS0))
331-221-8XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	ELMHURST	EMHRILETDS0	01/22/2009	Prefix Type: RBOC Switch Name: ELMHURST Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: NCHCILNC20T 🔧 Explore Switch(CLLI: EMHRILETDS0))
331-221-9XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	ELMHURST	EMHRILETDS0	01/22/2009	Prefix Type: RBOC Switch Name: ELMHURST Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: NCHCILNC20T 🔧 Explore Switch(CLLI: EMHRILETDS0))
331-281	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	NAPERVILLE	NPVLILNEDS0	10/25/2012	Prefix Type: RBOC Switch Name: NAPERVILLE NE Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: LBRDILLM20T 🔧 Explore Switch(CLLI: NPVLILNEDS0))
331-281 is split into 1,000-number blocks - detail below
331-281-2XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	NAPERVILLE	NPVLILNEDS0	10/26/2012	Prefix Type: RBOC Switch Name: NAPERVILLE NE Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: LBRDILLM20T 🔧 Explore Switch(CLLI: NPVLILNEDS0))
331-281-3XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	NAPERVILLE	NPVLILNEDS0	10/26/2012	Prefix Type: RBOC Switch Name: NAPERVILLE NE Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: LBRDILLM20T 🔧 Explore Switch(CLLI: NPVLILNEDS0))
331-281-4XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	NAPERVILLE	NPVLILNEDS0	10/26/2012	Prefix Type: RBOC Switch Name: NAPERVILLE NE Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: LBRDILLM20T 🔧 Explore Switch(CLLI: NPVLILNEDS0))
331-281-5XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	NAPERVILLE	NPVLILNEDS0	10/26/2012	Prefix Type: RBOC Switch Name: NAPERVILLE NE Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: LBRDILLM20T 🔧 Explore Switch(CLLI: NPVLILNEDS0))
331-281-6XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	NAPERVILLE	NPVLILNEDS0	10/26/2012	Prefix Type: RBOC Switch Name: NAPERVILLE NE Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: LBRDILLM20T 🔧 Explore Switch(CLLI: NPVLILNEDS0))
331-281-7XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	NAPERVILLE	NPVLILNEDS0	10/26/2012	Prefix Type: RBOC Switch Name: NAPERVILLE NE Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: LBRDILLM20T 🔧 Explore Switch(CLLI: NPVLILNEDS0))
331-281-8XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	NAPERVILLE	NPVLILNEDS0	10/26/2012	Prefix Type: RBOC Switch Name: NAPERVILLE NE Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: LBRDILLM20T 🔧 Explore Switch(CLLI: NPVLILNEDS0))
331-281-9XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	NAPERVILLE	NPVLILNEDS0	10/26/2012	Prefix Type: RBOC Switch Name: NAPERVILLE NE Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: LBRDILLM20T 🔧 Explore Switch(CLLI: NPVLILNEDS0))
331-332 is split into 1,000-number blocks - detail below
331-332-1XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	NAPERVILLE	NPVLILNADS0	12/17/2009	Prefix Type: RBOC Switch Name: NAPERVILLE NA Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: LBRDILLM20T 🔧 Explore Switch(CLLI: NPVLILNADS0))
331-332-2XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	NAPERVILLE	NPVLILNADS0	12/17/2009	Prefix Type: RBOC Switch Name: NAPERVILLE NA Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: LBRDILLM20T 🔧 Explore Switch(CLLI: NPVLILNADS0))
331-332-3XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	NAPERVILLE	NPVLILNADS0	12/17/2009	Prefix Type: RBOC Switch Name: NAPERVILLE NA Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: LBRDILLM20T 🔧 Explore Switch(CLLI: NPVLILNADS0))
331-332-4XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	NAPERVILLE	NPVLILNADS0	12/17/2009	Prefix Type: RBOC Switch Name: NAPERVILLE NA Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: LBRDILLM20T 🔧 Explore Switch(CLLI: NPVLILNADS0))
331-332-5XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	NAPERVILLE	NPVLILNADS0	12/17/2009	Prefix Type: RBOC Switch Name: NAPERVILLE NA Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: LBRDILLM20T 🔧 Explore Switch(CLLI: NPVLILNADS0))
331-332-6XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	NAPERVILLE	NPVLILNADS0	12/17/2009	Prefix Type: RBOC Switch Name: NAPERVILLE NA Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: LBRDILLM20T 🔧 Explore Switch(CLLI: NPVLILNADS0))
331-332-7XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	NAPERVILLE	NPVLILNADS0	12/17/2009	Prefix Type: RBOC Switch Name: NAPERVILLE NA Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: LBRDILLM20T 🔧 Explore Switch(CLLI: NPVLILNADS0))
331-332-8XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	NAPERVILLE	NPVLILNADS0	12/17/2009	Prefix Type: RBOC Switch Name: NAPERVILLE NA Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: LBRDILLM20T 🔧 Explore Switch(CLLI: NPVLILNADS0))
331-332-9XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	NAPERVILLE	NPVLILNADS0	12/17/2009	Prefix Type: RBOC Switch Name: NAPERVILLE NA Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: LBRDILLM20T 🔧 Explore Switch(CLLI: NPVLILNADS0))
618-220	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	BELLEVILLE	BLVLILADDS0	01/30/2007	Prefix Type: RBOC Switch Name: BELLEVILLE ADAMS Switch Type: DMS100 LATA: St.Louis MO (520) Tandem: COVLILCQ50T 🔧 Explore Switch(CLLI: BLVLILADDS0))
618-220 is split into 1,000-number blocks - detail below
618-220-0XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	BELLEVILLE	BLVLILADDS0	02/01/2007	Prefix Type: RBOC Switch Name: BELLEVILLE ADAMS Switch Type: DMS100 LATA: St.Louis MO (520) Tandem: COVLILCQ50T 🔧 Explore Switch(CLLI: BLVLILADDS0))
618-220-1XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	BELLEVILLE	BLVLILADDS0	02/01/2007	Prefix Type: RBOC Switch Name: BELLEVILLE ADAMS Switch Type: DMS100 LATA: St.Louis MO (520) Tandem: COVLILCQ50T 🔧 Explore Switch(CLLI: BLVLILADDS0))
618-220-2XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	BELLEVILLE	BLVLILADDS0	02/01/2007	Prefix Type: RBOC Switch Name: BELLEVILLE ADAMS Switch Type: DMS100 LATA: St.Louis MO (520) Tandem: COVLILCQ50T 🔧 Explore Switch(CLLI: BLVLILADDS0))
618-220-3XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	BELLEVILLE	BLVLILADDS0	02/01/2007	Prefix Type: RBOC Switch Name: BELLEVILLE ADAMS Switch Type: DMS100 LATA: St.Louis MO (520) Tandem: COVLILCQ50T 🔧 Explore Switch(CLLI: BLVLILADDS0))
618-220-4XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	BELLEVILLE	BLVLILADDS0	02/01/2007	Prefix Type: RBOC Switch Name: BELLEVILLE ADAMS Switch Type: DMS100 LATA: St.Louis MO (520) Tandem: COVLILCQ50T 🔧 Explore Switch(CLLI: BLVLILADDS0))
618-220-5XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	BELLEVILLE	BLVLILADDS0	02/01/2007	Prefix Type: RBOC Switch Name: BELLEVILLE ADAMS Switch Type: DMS100 LATA: St.Louis MO (520) Tandem: COVLILCQ50T 🔧 Explore Switch(CLLI: BLVLILADDS0))
618-220-6XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	BELLEVILLE	BLVLILADDS0	02/01/2007	Prefix Type: RBOC Switch Name: BELLEVILLE ADAMS Switch Type: DMS100 LATA: St.Louis MO (520) Tandem: COVLILCQ50T 🔧 Explore Switch(CLLI: BLVLILADDS0))
618-220-7XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	BELLEVILLE	BLVLILADDS0	02/01/2007	Prefix Type: RBOC Switch Name: BELLEVILLE ADAMS Switch Type: DMS100 LATA: St.Louis MO (520) Tandem: COVLILCQ50T 🔧 Explore Switch(CLLI: BLVLILADDS0))
618-220-8XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	BELLEVILLE	BLVLILADDS0	02/01/2007	Prefix Type: RBOC Switch Name: BELLEVILLE ADAMS Switch Type: DMS100 LATA: St.Louis MO (520) Tandem: COVLILCQ50T 🔧 Explore Switch(CLLI: BLVLILADDS0))
618-220-9XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	BELLEVILLE	BLVLILADDS0	02/01/2007	Prefix Type: RBOC Switch Name: BELLEVILLE ADAMS Switch Type: DMS100 LATA: St.Louis MO (520) Tandem: COVLILCQ50T 🔧 Explore Switch(CLLI: BLVLILADDS0))
618-222	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	BELLEVILLE	BLVLILADDS0	00/00/0000	Prefix Type: RBOC Switch Name: BELLEVILLE ADAMS Switch Type: DMS100 LATA: St.Louis MO (520) Tandem: COVLILCQ50T 🔧 Explore Switch(CLLI: BLVLILADDS0))
618-224	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	TRENTON	TRENILTRRS0	00/00/0000	Prefix Type: RBOC Switch Name: TRENTON Switch Type: N/A LATA: St.Louis MO (520) Tandem: COVLILCQ50T 🔧 Explore Switch(CLLI: TRENILTRRS0))
618-224 is split into 1,000-number blocks - detail below
618-224-2XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	TRENTON	TRENILTRRS0	N/A	Prefix Type: RBOC Switch Name: TRENTON Switch Type: N/A LATA: St.Louis MO (520) Tandem: COVLILCQ50T 🔧 Explore Switch(CLLI: TRENILTRRS0))
618-224-7XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	TRENTON	TRENILTRRS0	N/A	Prefix Type: RBOC Switch Name: TRENTON Switch Type: N/A LATA: St.Louis MO (520) Tandem: COVLILCQ50T 🔧 Explore Switch(CLLI: TRENILTRRS0))
618-224-9XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	TRENTON	TRENILTRRS0	N/A	Prefix Type: RBOC Switch Name: TRENTON Switch Type: N/A LATA: St.Louis MO (520) Tandem: COVLILCQ50T 🔧 Explore Switch(CLLI: TRENILTRRS0))
618-225	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	GRANITE CY	GRCYILTADS0	00/00/0000	Prefix Type: RBOC Switch Name: GRANITE CITY TRI Switch Type: EWSD LATA: St.Louis MO (520) Tandem: COVLILCQ50T 🔧 Explore Switch(CLLI: GRCYILTADS0))
618-225 is split into 1,000-number blocks - detail below
618-225-4XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	GRANITE CY	GRCYILTADS0	N/A	Prefix Type: RBOC Switch Name: GRANITE CITY TRI Switch Type: EWSD LATA: St.Louis MO (520) Tandem: COVLILCQ50T 🔧 Explore Switch(CLLI: GRCYILTADS0))
618-225-5XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	GRANITE CY	GRCYILTADS0	N/A	Prefix Type: RBOC Switch Name: GRANITE CITY TRI Switch Type: EWSD LATA: St.Louis MO (520) Tandem: COVLILCQ50T 🔧 Explore Switch(CLLI: GRCYILTADS0))
618-225-6XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	GRANITE CY	GRCYILTADS0	N/A	Prefix Type: RBOC Switch Name: GRANITE CITY TRI Switch Type: EWSD LATA: St.Louis MO (520) Tandem: COVLILCQ50T 🔧 Explore Switch(CLLI: GRCYILTADS0))
618-225-8XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	GRANITE CY	GRCYILTADS0	N/A	Prefix Type: RBOC Switch Name: GRANITE CITY TRI Switch Type: EWSD LATA: St.Louis MO (520) Tandem: COVLILCQ50T 🔧 Explore Switch(CLLI: GRCYILTADS0))
618-227	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	BECKEMEYER	BCKMILBMRS0	00/00/0000	Prefix Type: RBOC Switch Name: BECKEMEYER Switch Type: N/A LATA: St.Louis MO (520) Tandem: COVLILCQ50T 🔧 Explore Switch(CLLI: BCKMILBMRS0))
618-227 is split into 1,000-number blocks - detail below
618-227-8XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	BECKEMEYER	BCKMILBMRS0	N/A	Prefix Type: RBOC Switch Name: BECKEMEYER Switch Type: N/A LATA: St.Louis MO (520) Tandem: COVLILCQ50T 🔧 Explore Switch(CLLI: BCKMILBMRS0))
618-228	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	AVISTON	AVTNILAVRS0	00/00/0000	Prefix Type: RBOC Switch Name: AVISTON Switch Type: N/A LATA: St.Louis MO (520) Tandem: COVLILCQ50T 🔧 Explore Switch(CLLI: AVTNILAVRS0))
618-228 is split into 1,000-number blocks - detail below
618-228-7XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	AVISTON	AVTNILAVRS0	N/A	Prefix Type: RBOC Switch Name: AVISTON Switch Type: N/A LATA: St.Louis MO (520) Tandem: COVLILCQ50T 🔧 Explore Switch(CLLI: AVTNILAVRS0))
618-229	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	BELLEVILLE	BLVLILADDS0	00/00/0000	Prefix Type: RBOC Switch Name: BELLEVILLE ADAMS Switch Type: DMS100 LATA: St.Louis MO (520) Tandem: COVLILCQ50T 🔧 Explore Switch(CLLI: BLVLILADDS0))
618-233	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	BELLEVILLE	BLVLILADDS0	00/00/0000	Prefix Type: RBOC Switch Name: BELLEVILLE ADAMS Switch Type: DMS100 LATA: St.Louis MO (520) Tandem: COVLILCQ50T 🔧 Explore Switch(CLLI: BLVLILADDS0))
618-234	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	BELLEVILLE	BLVLILADDS0	00/00/0000	Prefix Type: RBOC Switch Name: BELLEVILLE ADAMS Switch Type: DMS100 LATA: St.Louis MO (520) Tandem: COVLILCQ50T 🔧 Explore Switch(CLLI: BLVLILADDS0))
618-235	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	BELLEVILLE	BLVLILADDS0	00/00/0000	Prefix Type: RBOC Switch Name: BELLEVILLE ADAMS Switch Type: DMS100 LATA: St.Louis MO (520) Tandem: COVLILCQ50T 🔧 Explore Switch(CLLI: BLVLILADDS0))
618-236	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	BELLEVILLE	BLVLILADDS0	00/00/0000	Prefix Type: RBOC Switch Name: BELLEVILLE ADAMS Switch Type: DMS100 LATA: St.Louis MO (520) Tandem: COVLILCQ50T 🔧 Explore Switch(CLLI: BLVLILADDS0))
618-239	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	BELLEVILLE	BLVLILADDS0	00/00/0000	Prefix Type: RBOC Switch Name: BELLEVILLE ADAMS Switch Type: DMS100 LATA: St.Louis MO (520) Tandem: COVLILCQ50T 🔧 Explore Switch(CLLI: BLVLILADDS0))
618-239 is split into 1,000-number blocks - detail below
618-239-0XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	BELLEVILLE	BLVLILADDS0	N/A	Prefix Type: RBOC Switch Name: BELLEVILLE ADAMS Switch Type: DMS100 LATA: St.Louis MO (520) Tandem: COVLILCQ50T 🔧 Explore Switch(CLLI: BLVLILADDS0))
618-239-1XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	BELLEVILLE	BLVLILADDS0	N/A	Prefix Type: RBOC Switch Name: BELLEVILLE ADAMS Switch Type: DMS100 LATA: St.Louis MO (520) Tandem: COVLILCQ50T 🔧 Explore Switch(CLLI: BLVLILADDS0))
618-239-2XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	BELLEVILLE	BLVLILADDS0	N/A	Prefix Type: RBOC Switch Name: BELLEVILLE ADAMS Switch Type: DMS100 LATA: St.Louis MO (520) Tandem: COVLILCQ50T 🔧 Explore Switch(CLLI: BLVLILADDS0))
618-239-3XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	BELLEVILLE	BLVLILADDS0	N/A	Prefix Type: RBOC Switch Name: BELLEVILLE ADAMS Switch Type: DMS100 LATA: St.Louis MO (520) Tandem: COVLILCQ50T 🔧 Explore Switch(CLLI: BLVLILADDS0))
618-239-6XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	BELLEVILLE	BLVLILADDS0	N/A	Prefix Type: RBOC Switch Name: BELLEVILLE ADAMS Switch Type: DMS100 LATA: St.Louis MO (520) Tandem: COVLILCQ50T 🔧 Explore Switch(CLLI: BLVLILADDS0))
618-239-7XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	BELLEVILLE	BLVLILADDS0	N/A	Prefix Type: RBOC Switch Name: BELLEVILLE ADAMS Switch Type: DMS100 LATA: St.Louis MO (520) Tandem: COVLILCQ50T 🔧 Explore Switch(CLLI: BLVLILADDS0))
618-239-8XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	BELLEVILLE	BLVLILADDS0	N/A	Prefix Type: RBOC Switch Name: BELLEVILLE ADAMS Switch Type: DMS100 LATA: St.Louis MO (520) Tandem: COVLILCQ50T 🔧 Explore Switch(CLLI: BLVLILADDS0))
618-239-9XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	BELLEVILLE	BLVLILADDS0	N/A	Prefix Type: RBOC Switch Name: BELLEVILLE ADAMS Switch Type: DMS100 LATA: St.Louis MO (520) Tandem: COVLILCQ50T 🔧 Explore Switch(CLLI: BLVLILADDS0))
618-241	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	MT VERNON	MTVRILMVDS0	00/00/0000	Prefix Type: RBOC Switch Name: MOUNT VERNON Switch Type: DMS100 LATA: St.Louis MO (520) Tandem: CENLILCE51T 🔧 Explore Switch(CLLI: MTVRILMVDS0))
618-241 is split into 1,000-number blocks - detail below
618-241-1XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	MT VERNON	MTVRILMVDS0	N/A	Prefix Type: RBOC Switch Name: MOUNT VERNON Switch Type: DMS100 LATA: St.Louis MO (520) Tandem: CENLILCE51T 🔧 Explore Switch(CLLI: MTVRILMVDS0))
618-241-2XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	MT VERNON	MTVRILMVDS0	N/A	Prefix Type: RBOC Switch Name: MOUNT VERNON Switch Type: DMS100 LATA: St.Louis MO (520) Tandem: CENLILCE51T 🔧 Explore Switch(CLLI: MTVRILMVDS0))
618-241-3XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	MT VERNON	MTVRILMVDS0	N/A	Prefix Type: RBOC Switch Name: MOUNT VERNON Switch Type: DMS100 LATA: St.Louis MO (520) Tandem: CENLILCE51T 🔧 Explore Switch(CLLI: MTVRILMVDS0))
618-241-4XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	MT VERNON	MTVRILMVDS0	N/A	Prefix Type: RBOC Switch Name: MOUNT VERNON Switch Type: DMS100 LATA: St.Louis MO (520) Tandem: CENLILCE51T 🔧 Explore Switch(CLLI: MTVRILMVDS0))
618-241-5XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	MT VERNON	MTVRILMVDS0	N/A	Prefix Type: RBOC Switch Name: MOUNT VERNON Switch Type: DMS100 LATA: St.Louis MO (520) Tandem: CENLILCE51T 🔧 Explore Switch(CLLI: MTVRILMVDS0))
618-241-6XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	MT VERNON	MTVRILMVDS0	N/A	Prefix Type: RBOC Switch Name: MOUNT VERNON Switch Type: DMS100 LATA: St.Louis MO (520) Tandem: CENLILCE51T 🔧 Explore Switch(CLLI: MTVRILMVDS0))
618-241-7XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	MT VERNON	MTVRILMVDS0	N/A	Prefix Type: RBOC Switch Name: MOUNT VERNON Switch Type: DMS100 LATA: St.Louis MO (520) Tandem: CENLILCE51T 🔧 Explore Switch(CLLI: MTVRILMVDS0))
618-241-8XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	MT VERNON	MTVRILMVDS0	N/A	Prefix Type: RBOC Switch Name: MOUNT VERNON Switch Type: DMS100 LATA: St.Louis MO (520) Tandem: CENLILCE51T 🔧 Explore Switch(CLLI: MTVRILMVDS0))
618-241-9XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	MT VERNON	MTVRILMVDS0	N/A	Prefix Type: RBOC Switch Name: MOUNT VERNON Switch Type: DMS100 LATA: St.Louis MO (520) Tandem: CENLILCE51T 🔧 Explore Switch(CLLI: MTVRILMVDS0))
618-242	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	MT VERNON	MTVRILMVDS0	00/00/0000	Prefix Type: RBOC Switch Name: MOUNT VERNON Switch Type: DMS100 LATA: St.Louis MO (520) Tandem: CENLILCE51T 🔧 Explore Switch(CLLI: MTVRILMVDS0))
618-244	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	MT VERNON	MTVRILMVDS0	00/00/0000	Prefix Type: RBOC Switch Name: MOUNT VERNON Switch Type: DMS100 LATA: St.Louis MO (520) Tandem: CENLILCE51T 🔧 Explore Switch(CLLI: MTVRILMVDS0))
618-246	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	MT VERNON	MTVRILMVDS0	00/00/0000	Prefix Type: RBOC Switch Name: MOUNT VERNON Switch Type: DMS100 LATA: St.Louis MO (520) Tandem: CENLILCE51T 🔧 Explore Switch(CLLI: MTVRILMVDS0))
618-246 is split into 1,000-number blocks - detail below
618-246-1XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	MT VERNON	MTVRILMVDS0	N/A	Prefix Type: RBOC Switch Name: MOUNT VERNON Switch Type: DMS100 LATA: St.Louis MO (520) Tandem: CENLILCE51T 🔧 Explore Switch(CLLI: MTVRILMVDS0))
618-246-2XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	MT VERNON	MTVRILMVDS0	N/A	Prefix Type: RBOC Switch Name: MOUNT VERNON Switch Type: DMS100 LATA: St.Louis MO (520) Tandem: CENLILCE51T 🔧 Explore Switch(CLLI: MTVRILMVDS0))
618-246-3XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	MT VERNON	MTVRILMVDS0	N/A	Prefix Type: RBOC Switch Name: MOUNT VERNON Switch Type: DMS100 LATA: St.Louis MO (520) Tandem: CENLILCE51T 🔧 Explore Switch(CLLI: MTVRILMVDS0))
618-246-4XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	MT VERNON	MTVRILMVDS0	N/A	Prefix Type: RBOC Switch Name: MOUNT VERNON Switch Type: DMS100 LATA: St.Louis MO (520) Tandem: CENLILCE51T 🔧 Explore Switch(CLLI: MTVRILMVDS0))
618-246-5XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	MT VERNON	MTVRILMVDS0	N/A	Prefix Type: RBOC Switch Name: MOUNT VERNON Switch Type: DMS100 LATA: St.Louis MO (520) Tandem: CENLILCE51T 🔧 Explore Switch(CLLI: MTVRILMVDS0))
618-246-6XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	MT VERNON	MTVRILMVDS0	N/A	Prefix Type: RBOC Switch Name: MOUNT VERNON Switch Type: DMS100 LATA: St.Louis MO (520) Tandem: CENLILCE51T 🔧 Explore Switch(CLLI: MTVRILMVDS0))
618-246-7XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	MT VERNON	MTVRILMVDS0	N/A	Prefix Type: RBOC Switch Name: MOUNT VERNON Switch Type: DMS100 LATA: St.Louis MO (520) Tandem: CENLILCE51T 🔧 Explore Switch(CLLI: MTVRILMVDS0))
618-246-8XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	MT VERNON	MTVRILMVDS0	N/A	Prefix Type: RBOC Switch Name: MOUNT VERNON Switch Type: DMS100 LATA: St.Louis MO (520) Tandem: CENLILCE51T 🔧 Explore Switch(CLLI: MTVRILMVDS0))
618-246-9XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	MT VERNON	MTVRILMVDS0	N/A	Prefix Type: RBOC Switch Name: MOUNT VERNON Switch Type: DMS100 LATA: St.Louis MO (520) Tandem: CENLILCE51T 🔧 Explore Switch(CLLI: MTVRILMVDS0))
618-251	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	WOOD RIVER	WDRVILWRRS0	00/00/0000	Prefix Type: RBOC Switch Name: WOOD RIVER RS0 Switch Type: N/A LATA: St.Louis MO (520) Tandem: COVLILCQ50T 🔧 Explore Switch(CLLI: WDRVILWRRS0))
618-251 is split into 1,000-number blocks - detail below
618-251-0XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	WOOD RIVER	WDRVILWRRS0	N/A	Prefix Type: RBOC Switch Name: WOOD RIVER RS0 Switch Type: N/A LATA: St.Louis MO (520) Tandem: COVLILCQ50T 🔧 Explore Switch(CLLI: WDRVILWRRS0))
618-251-2XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	WOOD RIVER	WDRVILWRRS0	N/A	Prefix Type: RBOC Switch Name: WOOD RIVER RS0 Switch Type: N/A LATA: St.Louis MO (520) Tandem: COVLILCQ50T 🔧 Explore Switch(CLLI: WDRVILWRRS0))
618-251-3XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	WOOD RIVER	WDRVILWRRS0	N/A	Prefix Type: RBOC Switch Name: WOOD RIVER RS0 Switch Type: N/A LATA: St.Louis MO (520) Tandem: COVLILCQ50T 🔧 Explore Switch(CLLI: WDRVILWRRS0))
618-251-4XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	WOOD RIVER	WDRVILWRRS0	N/A	Prefix Type: RBOC Switch Name: WOOD RIVER RS0 Switch Type: N/A LATA: St.Louis MO (520) Tandem: COVLILCQ50T 🔧 Explore Switch(CLLI: WDRVILWRRS0))
618-251-5XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	WOOD RIVER	WDRVILWRRS0	N/A	Prefix Type: RBOC Switch Name: WOOD RIVER RS0 Switch Type: N/A LATA: St.Louis MO (520) Tandem: COVLILCQ50T 🔧 Explore Switch(CLLI: WDRVILWRRS0))
618-251-6XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	WOOD RIVER	WDRVILWRRS0	N/A	Prefix Type: RBOC Switch Name: WOOD RIVER RS0 Switch Type: N/A LATA: St.Louis MO (520) Tandem: COVLILCQ50T 🔧 Explore Switch(CLLI: WDRVILWRRS0))
618-251-9XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	WOOD RIVER	WDRVILWRRS0	N/A	Prefix Type: RBOC Switch Name: WOOD RIVER RS0 Switch Type: N/A LATA: St.Louis MO (520) Tandem: COVLILCQ50T 🔧 Explore Switch(CLLI: WDRVILWRRS0))
618-254	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	WOOD RIVER	WDRVILWRRS0	00/00/0000	Prefix Type: RBOC Switch Name: WOOD RIVER RS0 Switch Type: N/A LATA: St.Louis MO (520) Tandem: COVLILCQ50T 🔧 Explore Switch(CLLI: WDRVILWRRS0))
618-255	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	WOOD RIVER	WDRVILWRRS0	00/00/0000	Prefix Type: RBOC Switch Name: WOOD RIVER RS0 Switch Type: N/A LATA: St.Louis MO (520) Tandem: COVLILCQ50T 🔧 Explore Switch(CLLI: WDRVILWRRS0))
618-255 is split into 1,000-number blocks - detail below
618-255-1XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	WOOD RIVER	WDRVILWRRS0	N/A	Prefix Type: RBOC Switch Name: WOOD RIVER RS0 Switch Type: N/A LATA: St.Louis MO (520) Tandem: COVLILCQ50T 🔧 Explore Switch(CLLI: WDRVILWRRS0))
618-255-2XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	WOOD RIVER	WDRVILWRRS0	N/A	Prefix Type: RBOC Switch Name: WOOD RIVER RS0 Switch Type: N/A LATA: St.Louis MO (520) Tandem: COVLILCQ50T 🔧 Explore Switch(CLLI: WDRVILWRRS0))
618-255-3XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	WOOD RIVER	WDRVILWRRS0	N/A	Prefix Type: RBOC Switch Name: WOOD RIVER RS0 Switch Type: N/A LATA: St.Louis MO (520) Tandem: COVLILCQ50T 🔧 Explore Switch(CLLI: WDRVILWRRS0))
618-255-4XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	WOOD RIVER	WDRVILWRRS0	N/A	Prefix Type: RBOC Switch Name: WOOD RIVER RS0 Switch Type: N/A LATA: St.Louis MO (520) Tandem: COVLILCQ50T 🔧 Explore Switch(CLLI: WDRVILWRRS0))
618-255-5XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	WOOD RIVER	WDRVILWRRS0	N/A	Prefix Type: RBOC Switch Name: WOOD RIVER RS0 Switch Type: N/A LATA: St.Louis MO (520) Tandem: COVLILCQ50T 🔧 Explore Switch(CLLI: WDRVILWRRS0))
618-255-6XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	WOOD RIVER	WDRVILWRRS0	N/A	Prefix Type: RBOC Switch Name: WOOD RIVER RS0 Switch Type: N/A LATA: St.Louis MO (520) Tandem: COVLILCQ50T 🔧 Explore Switch(CLLI: WDRVILWRRS0))
618-256	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	BELLEVILLE	BLVLILADDS0	00/00/0000	Prefix Type: RBOC Switch Name: BELLEVILLE ADAMS Switch Type: DMS100 LATA: St.Louis MO (520) Tandem: COVLILCQ50T 🔧 Explore Switch(CLLI: BLVLILADDS0))
618-257	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	BELLEVILLE	BLVLILADDS0	00/00/0000	Prefix Type: RBOC Switch Name: BELLEVILLE ADAMS Switch Type: DMS100 LATA: St.Louis MO (520) Tandem: COVLILCQ50T 🔧 Explore Switch(CLLI: BLVLILADDS0))
618-258	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	WOOD RIVER	RSHTILWDDS0	00/00/0000	Prefix Type: RBOC Switch Name: ROSEWOOD HEIGHTS Switch Type: EWSD LATA: St.Louis MO (520) Tandem: COVLILCQ50T 🔧 Explore Switch(CLLI: RSHTILWDDS0))
618-259	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	WOOD RIVER	RSHTILWDDS0	00/00/0000	Prefix Type: RBOC Switch Name: ROSEWOOD HEIGHTS Switch Type: EWSD LATA: St.Louis MO (520) Tandem: COVLILCQ50T 🔧 Explore Switch(CLLI: RSHTILWDDS0))
618-261	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	E ST LOUIS	ESLSILBRDS0	00/00/0000	Prefix Type: RBOC Switch Name: EAST ST LOUIS Switch Type: EWSD LATA: St.Louis MO (520) Tandem: COVLILCQ50T 🔧 Explore Switch(CLLI: ESLSILBRDS0))
618-266	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	DIX	KELLILKLRS0	00/00/0000	Prefix Type: RBOC Switch Name: KELL DIX Switch Type: N/A LATA: St.Louis MO (520) Tandem: CENLILCE51T 🔧 Explore Switch(CLLI: KELLILKLRS0))
618-266 is split into 1,000-number blocks - detail below
618-266-6XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	DIX	KELLILKLRS0	N/A	Prefix Type: RBOC Switch Name: KELL DIX Switch Type: N/A LATA: St.Louis MO (520) Tandem: CENLILCE51T 🔧 Explore Switch(CLLI: KELLILKLRS0))
618-266-7XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	DIX	KELLILKLRS0	N/A	Prefix Type: RBOC Switch Name: KELL DIX Switch Type: N/A LATA: St.Louis MO (520) Tandem: CENLILCE51T 🔧 Explore Switch(CLLI: KELLILKLRS0))
618-266-9XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	DIX	KELLILKLRS0	N/A	Prefix Type: RBOC Switch Name: KELL DIX Switch Type: N/A LATA: St.Louis MO (520) Tandem: CENLILCE51T 🔧 Explore Switch(CLLI: KELLILKLRS0))
618-271	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	E ST LOUIS	ESLSILBRDS0	00/00/0000	Prefix Type: RBOC Switch Name: EAST ST LOUIS Switch Type: EWSD LATA: St.Louis MO (520) Tandem: COVLILCQ50T 🔧 Explore Switch(CLLI: ESLSILBRDS0))
618-274	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	E ST LOUIS	ESLSILBRDS0	00/00/0000	Prefix Type: RBOC Switch Name: EAST ST LOUIS Switch Type: EWSD LATA: St.Louis MO (520) Tandem: COVLILCQ50T 🔧 Explore Switch(CLLI: ESLSILBRDS0))
618-277	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	BELLEVILLE	BLVLILADDS0	00/00/0000	Prefix Type: RBOC Switch Name: BELLEVILLE ADAMS Switch Type: DMS100 LATA: St.Louis MO (520) Tandem: COVLILCQ50T 🔧 Explore Switch(CLLI: BLVLILADDS0))
618-283	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	VANDALIA	VANDILVARS0	00/00/0000	Prefix Type: RBOC Switch Name: VANDALIA Switch Type: N/A LATA: St.Louis MO (520) Tandem: CENLILCE51T 🔧 Explore Switch(CLLI: VANDILVARS0))
618-283 is split into 1,000-number blocks - detail below
618-283-0XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	VANDALIA	VANDILVARS0	N/A	Prefix Type: RBOC Switch Name: VANDALIA Switch Type: N/A LATA: St.Louis MO (520) Tandem: CENLILCE51T 🔧 Explore Switch(CLLI: VANDILVARS0))
618-283-1XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	VANDALIA	VANDILVARS0	N/A	Prefix Type: RBOC Switch Name: VANDALIA Switch Type: N/A LATA: St.Louis MO (520) Tandem: CENLILCE51T 🔧 Explore Switch(CLLI: VANDILVARS0))
618-283-2XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	VANDALIA	VANDILVARS0	N/A	Prefix Type: RBOC Switch Name: VANDALIA Switch Type: N/A LATA: St.Louis MO (520) Tandem: CENLILCE51T 🔧 Explore Switch(CLLI: VANDILVARS0))
618-283-3XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	VANDALIA	VANDILVARS0	N/A	Prefix Type: RBOC Switch Name: VANDALIA Switch Type: N/A LATA: St.Louis MO (520) Tandem: CENLILCE51T 🔧 Explore Switch(CLLI: VANDILVARS0))
618-283-4XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	VANDALIA	VANDILVARS0	N/A	Prefix Type: RBOC Switch Name: VANDALIA Switch Type: N/A LATA: St.Louis MO (520) Tandem: CENLILCE51T 🔧 Explore Switch(CLLI: VANDILVARS0))
618-283-5XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	VANDALIA	VANDILVARS0	N/A	Prefix Type: RBOC Switch Name: VANDALIA Switch Type: N/A LATA: St.Louis MO (520) Tandem: CENLILCE51T 🔧 Explore Switch(CLLI: VANDILVARS0))
618-283-7XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	VANDALIA	VANDILVARS0	N/A	Prefix Type: RBOC Switch Name: VANDALIA Switch Type: N/A LATA: St.Louis MO (520) Tandem: CENLILCE51T 🔧 Explore Switch(CLLI: VANDILVARS0))
618-283-8XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	VANDALIA	VANDILVARS0	N/A	Prefix Type: RBOC Switch Name: VANDALIA Switch Type: N/A LATA: St.Louis MO (520) Tandem: CENLILCE51T 🔧 Explore Switch(CLLI: VANDILVARS0))
618-283-9XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	VANDALIA	VANDILVARS0	N/A	Prefix Type: RBOC Switch Name: VANDALIA Switch Type: N/A LATA: St.Louis MO (520) Tandem: CENLILCE51T 🔧 Explore Switch(CLLI: VANDILVARS0))
618-288	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	GLENCARBON	GLCRILGCRS0	00/00/0000	Prefix Type: RBOC Switch Name: GLEN CARBON RS0 Switch Type: N/A LATA: St.Louis MO (520) Tandem: COVLILCQ50T 🔧 Explore Switch(CLLI: GLCRILGCRS0))
618-293	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	EDGEMONT	EDMTILEXDS0	00/00/0000	Prefix Type: RBOC Switch Name: EDGEMONT Switch Type: DMS100 LATA: St.Louis MO (520) Tandem: COVLILCQ50T 🔧 Explore Switch(CLLI: EDMTILEXDS0))
618-293 is split into 1,000-number blocks - detail below
618-293-0XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	EDGEMONT	EDMTILEXDS0	N/A	Prefix Type: RBOC Switch Name: EDGEMONT Switch Type: DMS100 LATA: St.Louis MO (520) Tandem: COVLILCQ50T 🔧 Explore Switch(CLLI: EDMTILEXDS0))
618-293-1XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	EDGEMONT	EDMTILEXDS0	N/A	Prefix Type: RBOC Switch Name: EDGEMONT Switch Type: DMS100 LATA: St.Louis MO (520) Tandem: COVLILCQ50T 🔧 Explore Switch(CLLI: EDMTILEXDS0))
618-293-2XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	EDGEMONT	EDMTILEXDS0	N/A	Prefix Type: RBOC Switch Name: EDGEMONT Switch Type: DMS100 LATA: St.Louis MO (520) Tandem: COVLILCQ50T 🔧 Explore Switch(CLLI: EDMTILEXDS0))
618-293-4XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	EDGEMONT	EDMTILEXDS0	N/A	Prefix Type: RBOC Switch Name: EDGEMONT Switch Type: DMS100 LATA: St.Louis MO (520) Tandem: COVLILCQ50T 🔧 Explore Switch(CLLI: EDMTILEXDS0))
618-293-5XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	EDGEMONT	EDMTILEXDS0	N/A	Prefix Type: RBOC Switch Name: EDGEMONT Switch Type: DMS100 LATA: St.Louis MO (520) Tandem: COVLILCQ50T 🔧 Explore Switch(CLLI: EDMTILEXDS0))
618-293-6XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	EDGEMONT	EDMTILEXDS0	N/A	Prefix Type: RBOC Switch Name: EDGEMONT Switch Type: DMS100 LATA: St.Louis MO (520) Tandem: COVLILCQ50T 🔧 Explore Switch(CLLI: EDMTILEXDS0))
618-293-7XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	EDGEMONT	EDMTILEXDS0	N/A	Prefix Type: RBOC Switch Name: EDGEMONT Switch Type: DMS100 LATA: St.Louis MO (520) Tandem: COVLILCQ50T 🔧 Explore Switch(CLLI: EDMTILEXDS0))
618-293-8XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	EDGEMONT	EDMTILEXDS0	N/A	Prefix Type: RBOC Switch Name: EDGEMONT Switch Type: DMS100 LATA: St.Louis MO (520) Tandem: COVLILCQ50T 🔧 Explore Switch(CLLI: EDMTILEXDS0))
618-293-9XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	EDGEMONT	EDMTILEXDS0	N/A	Prefix Type: RBOC Switch Name: EDGEMONT Switch Type: DMS100 LATA: St.Louis MO (520) Tandem: COVLILCQ50T 🔧 Explore Switch(CLLI: EDMTILEXDS0))
618-296	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	EDWARDSVL	EWVLILERDS0	00/00/0000	Prefix Type: RBOC Switch Name: EDWARDSVILLE Switch Type: DMS100 LATA: St.Louis MO (520) Tandem: COVLILCQ50T 🔧 Explore Switch(CLLI: EWVLILERDS0))
618-323	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	IUKA	IUKAILIURS1	00/00/0000	Prefix Type: RBOC Switch Name: IUKA RS1 Switch Type: N/A LATA: St.Louis MO (520) Tandem: CENLILCE51T 🔧 Explore Switch(CLLI: IUKAILIURS1))
618-323 is split into 1,000-number blocks - detail below
618-323-6XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	IUKA	IUKAILIURS1	N/A	Prefix Type: RBOC Switch Name: IUKA RS1 Switch Type: N/A LATA: St.Louis MO (520) Tandem: CENLILCE51T 🔧 Explore Switch(CLLI: IUKAILIURS1))
618-327	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	NASHVILLE	NSVLILNVRS0	00/00/0000	Prefix Type: RBOC Switch Name: NASHVILLE Switch Type: N/A LATA: St.Louis MO (520) Tandem: COVLILCQ50T 🔧 Explore Switch(CLLI: NSVLILNVRS0))
618-327 is split into 1,000-number blocks - detail below
618-327-2XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	NASHVILLE	NSVLILNVRS0	N/A	Prefix Type: RBOC Switch Name: NASHVILLE Switch Type: N/A LATA: St.Louis MO (520) Tandem: COVLILCQ50T 🔧 Explore Switch(CLLI: NSVLILNVRS0))
618-327-3XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	NASHVILLE	NSVLILNVRS0	N/A	Prefix Type: RBOC Switch Name: NASHVILLE Switch Type: N/A LATA: St.Louis MO (520) Tandem: COVLILCQ50T 🔧 Explore Switch(CLLI: NSVLILNVRS0))
618-327-4XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	NASHVILLE	NSVLILNVRS0	N/A	Prefix Type: RBOC Switch Name: NASHVILLE Switch Type: N/A LATA: St.Louis MO (520) Tandem: COVLILCQ50T 🔧 Explore Switch(CLLI: NSVLILNVRS0))
618-327-5XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	NASHVILLE	NSVLILNVRS0	N/A	Prefix Type: RBOC Switch Name: NASHVILLE Switch Type: N/A LATA: St.Louis MO (520) Tandem: COVLILCQ50T 🔧 Explore Switch(CLLI: NSVLILNVRS0))
618-327-8XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	NASHVILLE	NSVLILNVRS0	N/A	Prefix Type: RBOC Switch Name: NASHVILLE Switch Type: N/A LATA: St.Louis MO (520) Tandem: COVLILCQ50T 🔧 Explore Switch(CLLI: NSVLILNVRS0))
618-327-9XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	NASHVILLE	NSVLILNVRS0	N/A	Prefix Type: RBOC Switch Name: NASHVILLE Switch Type: N/A LATA: St.Louis MO (520) Tandem: COVLILCQ50T 🔧 Explore Switch(CLLI: NSVLILNVRS0))
618-332	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	E ST LOUIS	CAHKILAADS0	00/00/0000	Prefix Type: RBOC Switch Name: CAHK DEERFIELD Switch Type: EWSD LATA: St.Louis MO (520) Tandem: COVLILCQ50T 🔧 Explore Switch(CLLI: CAHKILAADS0))
618-332 is split into 1,000-number blocks - detail below
618-332-0XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	E ST LOUIS	CAHKILAADS0	N/A	Prefix Type: RBOC Switch Name: CAHK DEERFIELD Switch Type: EWSD LATA: St.Louis MO (520) Tandem: COVLILCQ50T 🔧 Explore Switch(CLLI: CAHKILAADS0))
618-332-1XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	E ST LOUIS	CAHKILAADS0	N/A	Prefix Type: RBOC Switch Name: CAHK DEERFIELD Switch Type: EWSD LATA: St.Louis MO (520) Tandem: COVLILCQ50T 🔧 Explore Switch(CLLI: CAHKILAADS0))
618-332-2XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	E ST LOUIS	CAHKILAADS0	N/A	Prefix Type: RBOC Switch Name: CAHK DEERFIELD Switch Type: EWSD LATA: St.Louis MO (520) Tandem: COVLILCQ50T 🔧 Explore Switch(CLLI: CAHKILAADS0))
618-332-3XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	E ST LOUIS	CAHKILAADS0	N/A	Prefix Type: RBOC Switch Name: CAHK DEERFIELD Switch Type: EWSD LATA: St.Louis MO (520) Tandem: COVLILCQ50T 🔧 Explore Switch(CLLI: CAHKILAADS0))
618-332-4XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	E ST LOUIS	CAHKILAADS0	N/A	Prefix Type: RBOC Switch Name: CAHK DEERFIELD Switch Type: EWSD LATA: St.Louis MO (520) Tandem: COVLILCQ50T 🔧 Explore Switch(CLLI: CAHKILAADS0))
618-332-5XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	E ST LOUIS	CAHKILAADS0	N/A	Prefix Type: RBOC Switch Name: CAHK DEERFIELD Switch Type: EWSD LATA: St.Louis MO (520) Tandem: COVLILCQ50T 🔧 Explore Switch(CLLI: CAHKILAADS0))
618-332-6XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	E ST LOUIS	CAHKILAADS0	N/A	Prefix Type: RBOC Switch Name: CAHK DEERFIELD Switch Type: EWSD LATA: St.Louis MO (520) Tandem: COVLILCQ50T 🔧 Explore Switch(CLLI: CAHKILAADS0))
618-332-7XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	E ST LOUIS	CAHKILAADS0	N/A	Prefix Type: RBOC Switch Name: CAHK DEERFIELD Switch Type: EWSD LATA: St.Louis MO (520) Tandem: COVLILCQ50T 🔧 Explore Switch(CLLI: CAHKILAADS0))
618-332-8XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	E ST LOUIS	CAHKILAADS0	N/A	Prefix Type: RBOC Switch Name: CAHK DEERFIELD Switch Type: EWSD LATA: St.Louis MO (520) Tandem: COVLILCQ50T 🔧 Explore Switch(CLLI: CAHKILAADS0))
618-337	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	E ST LOUIS	CAHKILAADS0	00/00/0000	Prefix Type: RBOC Switch Name: CAHK DEERFIELD Switch Type: EWSD LATA: St.Louis MO (520) Tandem: COVLILCQ50T 🔧 Explore Switch(CLLI: CAHKILAADS0))
618-343	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	COLLINSVL	COVLILCQDS0	00/00/0000	Prefix Type: RBOC Switch Name: COLLINSVILLE DS0 Switch Type: DMS1/2 LATA: St.Louis MO (520) Tandem: COVLILCQ50T 🔧 Explore Switch(CLLI: COVLILCQDS0))
618-343 is split into 1,000-number blocks - detail below
618-343-0XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	COLLINSVL	COVLILCQDS0	N/A	Prefix Type: RBOC Switch Name: COLLINSVILLE DS0 Switch Type: DMS1/2 LATA: St.Louis MO (520) Tandem: COVLILCQ50T 🔧 Explore Switch(CLLI: COVLILCQDS0))
618-343-1XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	COLLINSVL	COVLILCQDS0	N/A	Prefix Type: RBOC Switch Name: COLLINSVILLE DS0 Switch Type: DMS1/2 LATA: St.Louis MO (520) Tandem: COVLILCQ50T 🔧 Explore Switch(CLLI: COVLILCQDS0))
618-343-2XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	COLLINSVL	COVLILCQDS0	N/A	Prefix Type: RBOC Switch Name: COLLINSVILLE DS0 Switch Type: DMS1/2 LATA: St.Louis MO (520) Tandem: COVLILCQ50T 🔧 Explore Switch(CLLI: COVLILCQDS0))
618-343-3XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	COLLINSVL	COVLILCQDS0	N/A	Prefix Type: RBOC Switch Name: COLLINSVILLE DS0 Switch Type: DMS1/2 LATA: St.Louis MO (520) Tandem: COVLILCQ50T 🔧 Explore Switch(CLLI: COVLILCQDS0))
618-343-4XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	COLLINSVL	COVLILCQDS0	N/A	Prefix Type: RBOC Switch Name: COLLINSVILLE DS0 Switch Type: DMS1/2 LATA: St.Louis MO (520) Tandem: COVLILCQ50T 🔧 Explore Switch(CLLI: COVLILCQDS0))
618-343-6XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	COLLINSVL	COVLILCQDS0	N/A	Prefix Type: RBOC Switch Name: COLLINSVILLE DS0 Switch Type: DMS1/2 LATA: St.Louis MO (520) Tandem: COVLILCQ50T 🔧 Explore Switch(CLLI: COVLILCQDS0))
618-343-7XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	COLLINSVL	COVLILCQDS0	N/A	Prefix Type: RBOC Switch Name: COLLINSVILLE DS0 Switch Type: DMS1/2 LATA: St.Louis MO (520) Tandem: COVLILCQ50T 🔧 Explore Switch(CLLI: COVLILCQDS0))
618-343-8XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	COLLINSVL	COVLILCQDS0	N/A	Prefix Type: RBOC Switch Name: COLLINSVILLE DS0 Switch Type: DMS1/2 LATA: St.Louis MO (520) Tandem: COVLILCQ50T 🔧 Explore Switch(CLLI: COVLILCQDS0))
618-343-9XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	COLLINSVL	COVLILCQDS0	N/A	Prefix Type: RBOC Switch Name: COLLINSVILLE DS0 Switch Type: DMS1/2 LATA: St.Louis MO (520) Tandem: COVLILCQ50T 🔧 Explore Switch(CLLI: COVLILCQDS0))
618-344	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	COLLINSVL	COVLILCQDS0	00/00/0000	Prefix Type: RBOC Switch Name: COLLINSVILLE DS0 Switch Type: DMS1/2 LATA: St.Louis MO (520) Tandem: COVLILCQ50T 🔧 Explore Switch(CLLI: COVLILCQDS0))
618-345	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	COLLINSVL	COVLILCQDS0	00/00/0000	Prefix Type: RBOC Switch Name: COLLINSVILLE DS0 Switch Type: DMS1/2 LATA: St.Louis MO (520) Tandem: COVLILCQ50T 🔧 Explore Switch(CLLI: COVLILCQDS0))
618-346	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	COLLINSVL	COVLILCQDS0	00/00/0000	Prefix Type: RBOC Switch Name: COLLINSVILLE DS0 Switch Type: DMS1/2 LATA: St.Louis MO (520) Tandem: COVLILCQ50T 🔧 Explore Switch(CLLI: COVLILCQDS0))
618-346 is split into 1,000-number blocks - detail below
618-346-0XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	COLLINSVL	COVLILCQDS0	N/A	Prefix Type: RBOC Switch Name: COLLINSVILLE DS0 Switch Type: DMS1/2 LATA: St.Louis MO (520) Tandem: COVLILCQ50T 🔧 Explore Switch(CLLI: COVLILCQDS0))
618-346-1XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	COLLINSVL	COVLILCQDS0	N/A	Prefix Type: RBOC Switch Name: COLLINSVILLE DS0 Switch Type: DMS1/2 LATA: St.Louis MO (520) Tandem: COVLILCQ50T 🔧 Explore Switch(CLLI: COVLILCQDS0))
618-346-2XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	COLLINSVL	COVLILCQDS0	N/A	Prefix Type: RBOC Switch Name: COLLINSVILLE DS0 Switch Type: DMS1/2 LATA: St.Louis MO (520) Tandem: COVLILCQ50T 🔧 Explore Switch(CLLI: COVLILCQDS0))
618-346-3XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	COLLINSVL	COVLILCQDS0	N/A	Prefix Type: RBOC Switch Name: COLLINSVILLE DS0 Switch Type: DMS1/2 LATA: St.Louis MO (520) Tandem: COVLILCQ50T 🔧 Explore Switch(CLLI: COVLILCQDS0))
618-346-4XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	COLLINSVL	COVLILCQDS0	N/A	Prefix Type: RBOC Switch Name: COLLINSVILLE DS0 Switch Type: DMS1/2 LATA: St.Louis MO (520) Tandem: COVLILCQ50T 🔧 Explore Switch(CLLI: COVLILCQDS0))
618-346-5XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	COLLINSVL	COVLILCQDS0	N/A	Prefix Type: RBOC Switch Name: COLLINSVILLE DS0 Switch Type: DMS1/2 LATA: St.Louis MO (520) Tandem: COVLILCQ50T 🔧 Explore Switch(CLLI: COVLILCQDS0))
618-346-6XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	COLLINSVL	COVLILCQDS0	N/A	Prefix Type: RBOC Switch Name: COLLINSVILLE DS0 Switch Type: DMS1/2 LATA: St.Louis MO (520) Tandem: COVLILCQ50T 🔧 Explore Switch(CLLI: COVLILCQDS0))
618-346-7XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	COLLINSVL	COVLILCQDS0	N/A	Prefix Type: RBOC Switch Name: COLLINSVILLE DS0 Switch Type: DMS1/2 LATA: St.Louis MO (520) Tandem: COVLILCQ50T 🔧 Explore Switch(CLLI: COVLILCQDS0))
618-346-8XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	COLLINSVL	COVLILCQDS0	N/A	Prefix Type: RBOC Switch Name: COLLINSVILLE DS0 Switch Type: DMS1/2 LATA: St.Louis MO (520) Tandem: COVLILCQ50T 🔧 Explore Switch(CLLI: COVLILCQDS0))
618-355	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	BELLEVILLE	BLVLILADDS0	00/00/0000	Prefix Type: RBOC Switch Name: BELLEVILLE ADAMS Switch Type: DMS100 LATA: St.Louis MO (520) Tandem: COVLILCQ50T 🔧 Explore Switch(CLLI: BLVLILADDS0))
618-360	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	HARMONY	HRMJILHMRS0	02/04/2002	Prefix Type: RBOC Switch Name: HARMONY Switch Type: N/A LATA: St.Louis MO (520) Tandem: CENLILCE51T 🔧 Explore Switch(CLLI: HRMJILHMRS0))
618-360 is split into 1,000-number blocks - detail below
618-360-0XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	HARMONY	HRMJILHMRS0	N/A	Prefix Type: RBOC Switch Name: HARMONY Switch Type: N/A LATA: St.Louis MO (520) Tandem: CENLILCE51T 🔧 Explore Switch(CLLI: HRMJILHMRS0))
618-372	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	BRIGHTON	BITNILBHRS0	00/00/0000	Prefix Type: RBOC Switch Name: BRIGHTON Switch Type: N/A LATA: St.Louis MO (520) Tandem: COVLILCQ50T 🔧 Explore Switch(CLLI: BITNILBHRS0))
618-372 is split into 1,000-number blocks - detail below
618-372-0XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	BRIGHTON	BITNILBHRS0	N/A	Prefix Type: RBOC Switch Name: BRIGHTON Switch Type: N/A LATA: St.Louis MO (520) Tandem: COVLILCQ50T 🔧 Explore Switch(CLLI: BITNILBHRS0))
618-372-3XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	BRIGHTON	BITNILBHRS0	N/A	Prefix Type: RBOC Switch Name: BRIGHTON Switch Type: N/A LATA: St.Louis MO (520) Tandem: COVLILCQ50T 🔧 Explore Switch(CLLI: BITNILBHRS0))
618-372-4XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	BRIGHTON	BITNILBHRS0	N/A	Prefix Type: RBOC Switch Name: BRIGHTON Switch Type: N/A LATA: St.Louis MO (520) Tandem: COVLILCQ50T 🔧 Explore Switch(CLLI: BITNILBHRS0))
618-372-7XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	BRIGHTON	BITNILBHRS0	N/A	Prefix Type: RBOC Switch Name: BRIGHTON Switch Type: N/A LATA: St.Louis MO (520) Tandem: COVLILCQ50T 🔧 Explore Switch(CLLI: BITNILBHRS0))
618-372-8XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	BRIGHTON	BITNILBHRS0	N/A	Prefix Type: RBOC Switch Name: BRIGHTON Switch Type: N/A LATA: St.Louis MO (520) Tandem: COVLILCQ50T 🔧 Explore Switch(CLLI: BITNILBHRS0))
618-374	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	ALTON	ELSHILESRS0	00/00/0000	Prefix Type: RBOC Switch Name: ELSAH Switch Type: N/A LATA: St.Louis MO (520) Tandem: COVLILCQ50T 🔧 Explore Switch(CLLI: ELSHILESRS0))
618-374 is split into 1,000-number blocks - detail below
618-374-1XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	ALTON	ELSHILESRS0	N/A	Prefix Type: RBOC Switch Name: ELSAH Switch Type: N/A LATA: St.Louis MO (520) Tandem: COVLILCQ50T 🔧 Explore Switch(CLLI: ELSHILESRS0))
618-374-2XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	ALTON	ELSHILESRS0	N/A	Prefix Type: RBOC Switch Name: ELSAH Switch Type: N/A LATA: St.Louis MO (520) Tandem: COVLILCQ50T 🔧 Explore Switch(CLLI: ELSHILESRS0))
618-374-4XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	ALTON	ELSHILESRS0	N/A	Prefix Type: RBOC Switch Name: ELSAH Switch Type: N/A LATA: St.Louis MO (520) Tandem: COVLILCQ50T 🔧 Explore Switch(CLLI: ELSHILESRS0))
618-374-5XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	ALTON	ELSHILESRS0	N/A	Prefix Type: RBOC Switch Name: ELSAH Switch Type: N/A LATA: St.Louis MO (520) Tandem: COVLILCQ50T 🔧 Explore Switch(CLLI: ELSHILESRS0))
618-374-9XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	ALTON	ELSHILESRS0	N/A	Prefix Type: RBOC Switch Name: ELSAH Switch Type: N/A LATA: St.Louis MO (520) Tandem: COVLILCQ50T 🔧 Explore Switch(CLLI: ELSHILESRS0))
618-377	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	BETHALTO	BTHLILBORS0	00/00/0000	Prefix Type: RBOC Switch Name: BETHALTO Switch Type: N/A LATA: St.Louis MO (520) Tandem: COVLILCQ50T 🔧 Explore Switch(CLLI: BTHLILBORS0))
618-391	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	GLENCARBON	GLCRILGCRS0	01/30/2007	Prefix Type: RBOC Switch Name: GLEN CARBON RS0 Switch Type: N/A LATA: St.Louis MO (520) Tandem: COVLILCQ50T 🔧 Explore Switch(CLLI: GLCRILGCRS0))
618-391 is split into 1,000-number blocks - detail below
618-391-5XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	GLENCARBON	GLCRILGCRS0	02/01/2007	Prefix Type: RBOC Switch Name: GLEN CARBON RS0 Switch Type: N/A LATA: St.Louis MO (520) Tandem: COVLILCQ50T 🔧 Explore Switch(CLLI: GLCRILGCRS0))
618-391-6XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	GLENCARBON	GLCRILGCRS0	02/01/2007	Prefix Type: RBOC Switch Name: GLEN CARBON RS0 Switch Type: N/A LATA: St.Louis MO (520) Tandem: COVLILCQ50T 🔧 Explore Switch(CLLI: GLCRILGCRS0))
618-394	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	EDGEMONT	EDMTILEXDS0	00/00/0000	Prefix Type: RBOC Switch Name: EDGEMONT Switch Type: DMS100 LATA: St.Louis MO (520) Tandem: COVLILCQ50T 🔧 Explore Switch(CLLI: EDMTILEXDS0))
618-397	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	EDGEMONT	EDMTILEXDS0	00/00/0000	Prefix Type: RBOC Switch Name: EDGEMONT Switch Type: DMS100 LATA: St.Louis MO (520) Tandem: COVLILCQ50T 🔧 Explore Switch(CLLI: EDMTILEXDS0))
618-398	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	EDGEMONT	EDMTILEXDS0	00/00/0000	Prefix Type: RBOC Switch Name: EDGEMONT Switch Type: DMS100 LATA: St.Louis MO (520) Tandem: COVLILCQ50T 🔧 Explore Switch(CLLI: EDMTILEXDS0))
618-399	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	EDGEMONT	EDMTILEXDS0	00/00/0000	Prefix Type: RBOC Switch Name: EDGEMONT Switch Type: DMS100 LATA: St.Louis MO (520) Tandem: COVLILCQ50T 🔧 Explore Switch(CLLI: EDMTILEXDS0))
618-433	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	ALTON	ALTNILAKDS0	00/00/0000	Prefix Type: RBOC Switch Name: ALTON COLLEGE Switch Type: EWSD LATA: St.Louis MO (520) Tandem: COVLILCQ50T 🔧 Explore Switch(CLLI: ALTNILAKDS0))
618-433 is split into 1,000-number blocks - detail below
618-433-0XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	ALTON	ALTNILAKDS0	N/A	Prefix Type: RBOC Switch Name: ALTON COLLEGE Switch Type: EWSD LATA: St.Louis MO (520) Tandem: COVLILCQ50T 🔧 Explore Switch(CLLI: ALTNILAKDS0))
618-433-2XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	ALTON	ALTNILAKDS0	N/A	Prefix Type: RBOC Switch Name: ALTON COLLEGE Switch Type: EWSD LATA: St.Louis MO (520) Tandem: COVLILCQ50T 🔧 Explore Switch(CLLI: ALTNILAKDS0))
618-433-4XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	ALTON	ALTNILAKDS0	N/A	Prefix Type: RBOC Switch Name: ALTON COLLEGE Switch Type: EWSD LATA: St.Louis MO (520) Tandem: COVLILCQ50T 🔧 Explore Switch(CLLI: ALTNILAKDS0))
618-433-6XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	ALTON	ALTNILAKDS0	N/A	Prefix Type: RBOC Switch Name: ALTON COLLEGE Switch Type: EWSD LATA: St.Louis MO (520) Tandem: COVLILCQ50T 🔧 Explore Switch(CLLI: ALTNILAKDS0))
618-433-7XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	ALTON	ALTNILAKDS0	N/A	Prefix Type: RBOC Switch Name: ALTON COLLEGE Switch Type: EWSD LATA: St.Louis MO (520) Tandem: COVLILCQ50T 🔧 Explore Switch(CLLI: ALTNILAKDS0))
618-436	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CENTRALIA	CENLILCEDS0	00/00/0000	Prefix Type: RBOC Switch Name: CENTRALIA DS0 Switch Type: DMS1/2 LATA: St.Louis MO (520) Tandem: CENLILCE51T 🔧 Explore Switch(CLLI: CENLILCEDS0))
618-436 is split into 1,000-number blocks - detail below
618-436-5XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CENTRALIA	CENLILCEDS0	N/A	Prefix Type: RBOC Switch Name: CENTRALIA DS0 Switch Type: DMS1/2 LATA: St.Louis MO (520) Tandem: CENLILCE51T 🔧 Explore Switch(CLLI: CENLILCEDS0))
618-436-6XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CENTRALIA	CENLILCEDS0	N/A	Prefix Type: RBOC Switch Name: CENTRALIA DS0 Switch Type: DMS1/2 LATA: St.Louis MO (520) Tandem: CENLILCE51T 🔧 Explore Switch(CLLI: CENLILCEDS0))
618-436-7XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CENTRALIA	CENLILCEDS0	N/A	Prefix Type: RBOC Switch Name: CENTRALIA DS0 Switch Type: DMS1/2 LATA: St.Louis MO (520) Tandem: CENLILCE51T 🔧 Explore Switch(CLLI: CENLILCEDS0))
618-436-8XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CENTRALIA	CENLILCEDS0	N/A	Prefix Type: RBOC Switch Name: CENTRALIA DS0 Switch Type: DMS1/2 LATA: St.Louis MO (520) Tandem: CENLILCE51T 🔧 Explore Switch(CLLI: CENLILCEDS0))
618-451	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	GRANITE CY	GRCYILTADS0	00/00/0000	Prefix Type: RBOC Switch Name: GRANITE CITY TRI Switch Type: EWSD LATA: St.Louis MO (520) Tandem: COVLILCQ50T 🔧 Explore Switch(CLLI: GRCYILTADS0))
618-452	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	GRANITE CY	GRCYILTADS0	00/00/0000	Prefix Type: RBOC Switch Name: GRANITE CITY TRI Switch Type: EWSD LATA: St.Louis MO (520) Tandem: COVLILCQ50T 🔧 Explore Switch(CLLI: GRCYILTADS0))
618-462	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	ALTON	ALTNILAKDS0	00/00/0000	Prefix Type: RBOC Switch Name: ALTON COLLEGE Switch Type: EWSD LATA: St.Louis MO (520) Tandem: COVLILCQ50T 🔧 Explore Switch(CLLI: ALTNILAKDS0))
618-463	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	ALTON	ALTNILAKDS0	00/00/0000	Prefix Type: RBOC Switch Name: ALTON COLLEGE Switch Type: EWSD LATA: St.Louis MO (520) Tandem: COVLILCQ50T 🔧 Explore Switch(CLLI: ALTNILAKDS0))
618-465	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	ALTON	ALTNILAKDS0	00/00/0000	Prefix Type: RBOC Switch Name: ALTON COLLEGE Switch Type: EWSD LATA: St.Louis MO (520) Tandem: COVLILCQ50T 🔧 Explore Switch(CLLI: ALTNILAKDS0))
618-466	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	ALTON	GDFYILANDS0	00/00/0000	Prefix Type: RBOC Switch Name: GODFREY Switch Type: EWSD LATA: St.Louis MO (520) Tandem: COVLILCQ50T 🔧 Explore Switch(CLLI: GDFYILANDS0))
618-467	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	ALTON	GDFYILANDS0	00/00/0000	Prefix Type: RBOC Switch Name: GODFREY Switch Type: EWSD LATA: St.Louis MO (520) Tandem: COVLILCQ50T 🔧 Explore Switch(CLLI: GDFYILANDS0))
618-467 is split into 1,000-number blocks - detail below
618-467-0XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	ALTON	GDFYILANDS0	N/A	Prefix Type: RBOC Switch Name: GODFREY Switch Type: EWSD LATA: St.Louis MO (520) Tandem: COVLILCQ50T 🔧 Explore Switch(CLLI: GDFYILANDS0))
618-467-1XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	ALTON	GDFYILANDS0	N/A	Prefix Type: RBOC Switch Name: GODFREY Switch Type: EWSD LATA: St.Louis MO (520) Tandem: COVLILCQ50T 🔧 Explore Switch(CLLI: GDFYILANDS0))
618-467-2XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	ALTON	GDFYILANDS0	N/A	Prefix Type: RBOC Switch Name: GODFREY Switch Type: EWSD LATA: St.Louis MO (520) Tandem: COVLILCQ50T 🔧 Explore Switch(CLLI: GDFYILANDS0))
618-467-3XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	ALTON	GDFYILANDS0	N/A	Prefix Type: RBOC Switch Name: GODFREY Switch Type: EWSD LATA: St.Louis MO (520) Tandem: COVLILCQ50T 🔧 Explore Switch(CLLI: GDFYILANDS0))
618-467-4XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	ALTON	GDFYILANDS0	N/A	Prefix Type: RBOC Switch Name: GODFREY Switch Type: EWSD LATA: St.Louis MO (520) Tandem: COVLILCQ50T 🔧 Explore Switch(CLLI: GDFYILANDS0))
618-467-5XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	ALTON	GDFYILANDS0	N/A	Prefix Type: RBOC Switch Name: GODFREY Switch Type: EWSD LATA: St.Louis MO (520) Tandem: COVLILCQ50T 🔧 Explore Switch(CLLI: GDFYILANDS0))
618-467-7XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	ALTON	GDFYILANDS0	N/A	Prefix Type: RBOC Switch Name: GODFREY Switch Type: EWSD LATA: St.Louis MO (520) Tandem: COVLILCQ50T 🔧 Explore Switch(CLLI: GDFYILANDS0))
618-468	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	ALTON	GDFYILANDS0	00/00/0000	Prefix Type: RBOC Switch Name: GODFREY Switch Type: EWSD LATA: St.Louis MO (520) Tandem: COVLILCQ50T 🔧 Explore Switch(CLLI: GDFYILANDS0))
618-468 is split into 1,000-number blocks - detail below
618-468-2XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	ALTON	GDFYILANDS0	N/A	Prefix Type: RBOC Switch Name: GODFREY Switch Type: EWSD LATA: St.Louis MO (520) Tandem: COVLILCQ50T 🔧 Explore Switch(CLLI: GDFYILANDS0))
618-468-3XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	ALTON	GDFYILANDS0	N/A	Prefix Type: RBOC Switch Name: GODFREY Switch Type: EWSD LATA: St.Louis MO (520) Tandem: COVLILCQ50T 🔧 Explore Switch(CLLI: GDFYILANDS0))
618-468-4XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	ALTON	GDFYILANDS0	N/A	Prefix Type: RBOC Switch Name: GODFREY Switch Type: EWSD LATA: St.Louis MO (520) Tandem: COVLILCQ50T 🔧 Explore Switch(CLLI: GDFYILANDS0))
618-468-5XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	ALTON	GDFYILANDS0	N/A	Prefix Type: RBOC Switch Name: GODFREY Switch Type: EWSD LATA: St.Louis MO (520) Tandem: COVLILCQ50T 🔧 Explore Switch(CLLI: GDFYILANDS0))
618-468-6XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	ALTON	GDFYILANDS0	N/A	Prefix Type: RBOC Switch Name: GODFREY Switch Type: EWSD LATA: St.Louis MO (520) Tandem: COVLILCQ50T 🔧 Explore Switch(CLLI: GDFYILANDS0))
618-468-7XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	ALTON	GDFYILANDS0	N/A	Prefix Type: RBOC Switch Name: GODFREY Switch Type: EWSD LATA: St.Louis MO (520) Tandem: COVLILCQ50T 🔧 Explore Switch(CLLI: GDFYILANDS0))
618-474	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	ALTON	ALTNILAKDS0	00/00/0000	Prefix Type: RBOC Switch Name: ALTON COLLEGE Switch Type: EWSD LATA: St.Louis MO (520) Tandem: COVLILCQ50T 🔧 Explore Switch(CLLI: ALTNILAKDS0))
618-474 is split into 1,000-number blocks - detail below
618-474-0XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	ALTON	ALTNILAKDS0	N/A	Prefix Type: RBOC Switch Name: ALTON COLLEGE Switch Type: EWSD LATA: St.Louis MO (520) Tandem: COVLILCQ50T 🔧 Explore Switch(CLLI: ALTNILAKDS0))
618-474-1XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	ALTON	ALTNILAKDS0	N/A	Prefix Type: RBOC Switch Name: ALTON COLLEGE Switch Type: EWSD LATA: St.Louis MO (520) Tandem: COVLILCQ50T 🔧 Explore Switch(CLLI: ALTNILAKDS0))
618-474-2XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	ALTON	ALTNILAKDS0	N/A	Prefix Type: RBOC Switch Name: ALTON COLLEGE Switch Type: EWSD LATA: St.Louis MO (520) Tandem: COVLILCQ50T 🔧 Explore Switch(CLLI: ALTNILAKDS0))
618-474-3XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	ALTON	ALTNILAKDS0	N/A	Prefix Type: RBOC Switch Name: ALTON COLLEGE Switch Type: EWSD LATA: St.Louis MO (520) Tandem: COVLILCQ50T 🔧 Explore Switch(CLLI: ALTNILAKDS0))
618-474-4XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	ALTON	ALTNILAKDS0	N/A	Prefix Type: RBOC Switch Name: ALTON COLLEGE Switch Type: EWSD LATA: St.Louis MO (520) Tandem: COVLILCQ50T 🔧 Explore Switch(CLLI: ALTNILAKDS0))
618-474-5XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	ALTON	ALTNILAKDS0	N/A	Prefix Type: RBOC Switch Name: ALTON COLLEGE Switch Type: EWSD LATA: St.Louis MO (520) Tandem: COVLILCQ50T 🔧 Explore Switch(CLLI: ALTNILAKDS0))
618-474-6XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	ALTON	ALTNILAKDS0	N/A	Prefix Type: RBOC Switch Name: ALTON COLLEGE Switch Type: EWSD LATA: St.Louis MO (520) Tandem: COVLILCQ50T 🔧 Explore Switch(CLLI: ALTNILAKDS0))
618-474-7XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	ALTON	ALTNILAKDS0	N/A	Prefix Type: RBOC Switch Name: ALTON COLLEGE Switch Type: EWSD LATA: St.Louis MO (520) Tandem: COVLILCQ50T 🔧 Explore Switch(CLLI: ALTNILAKDS0))
618-475	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	NEW ATHENS	NWATILGYRS0	00/00/0000	Prefix Type: RBOC Switch Name: NEW ATHENS Switch Type: N/A LATA: St.Louis MO (520) Tandem: COVLILCQ50T 🔧 Explore Switch(CLLI: NWATILGYRS0))
618-475 is split into 1,000-number blocks - detail below
618-475-2XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	NEW ATHENS	NWATILGYRS0	N/A	Prefix Type: RBOC Switch Name: NEW ATHENS Switch Type: N/A LATA: St.Louis MO (520) Tandem: COVLILCQ50T 🔧 Explore Switch(CLLI: NWATILGYRS0))
618-475-3XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	NEW ATHENS	NWATILGYRS0	N/A	Prefix Type: RBOC Switch Name: NEW ATHENS Switch Type: N/A LATA: St.Louis MO (520) Tandem: COVLILCQ50T 🔧 Explore Switch(CLLI: NWATILGYRS0))
618-475-9XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	NEW ATHENS	NWATILGYRS0	N/A	Prefix Type: RBOC Switch Name: NEW ATHENS Switch Type: N/A LATA: St.Louis MO (520) Tandem: COVLILCQ50T 🔧 Explore Switch(CLLI: NWATILGYRS0))
618-482	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	E ST LOUIS	ESLSILBRDS0	00/00/0000	Prefix Type: RBOC Switch Name: EAST ST LOUIS Switch Type: EWSD LATA: St.Louis MO (520) Tandem: COVLILCQ50T 🔧 Explore Switch(CLLI: ESLSILBRDS0))
618-489	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	EDGEMONT	EDMTILEXDS0	00/00/0000	Prefix Type: RBOC Switch Name: EDGEMONT Switch Type: DMS100 LATA: St.Louis MO (520) Tandem: COVLILCQ50T 🔧 Explore Switch(CLLI: EDMTILEXDS0))
618-489 is split into 1,000-number blocks - detail below
618-489-2XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	EDGEMONT	EDMTILEXDS0	N/A	Prefix Type: RBOC Switch Name: EDGEMONT Switch Type: DMS100 LATA: St.Louis MO (520) Tandem: COVLILCQ50T 🔧 Explore Switch(CLLI: EDMTILEXDS0))
618-512	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	GRANITE CY	GRCYILTADS0	00/00/0000	Prefix Type: RBOC Switch Name: GRANITE CITY TRI Switch Type: EWSD LATA: St.Louis MO (520) Tandem: COVLILCQ50T 🔧 Explore Switch(CLLI: GRCYILTADS0))
618-512 is split into 1,000-number blocks - detail below
618-512-3XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	GRANITE CY	GRCYILTADS0	N/A	Prefix Type: RBOC Switch Name: GRANITE CITY TRI Switch Type: EWSD LATA: St.Louis MO (520) Tandem: COVLILCQ50T 🔧 Explore Switch(CLLI: GRCYILTADS0))
618-512-6XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	GRANITE CY	GRCYILTADS0	N/A	Prefix Type: RBOC Switch Name: GRANITE CITY TRI Switch Type: EWSD LATA: St.Louis MO (520) Tandem: COVLILCQ50T 🔧 Explore Switch(CLLI: GRCYILTADS0))
618-512-8XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	GRANITE CY	GRCYILTADS0	N/A	Prefix Type: RBOC Switch Name: GRANITE CITY TRI Switch Type: EWSD LATA: St.Louis MO (520) Tandem: COVLILCQ50T 🔧 Explore Switch(CLLI: GRCYILTADS0))
618-512-9XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	GRANITE CY	GRCYILTADS0	N/A	Prefix Type: RBOC Switch Name: GRANITE CITY TRI Switch Type: EWSD LATA: St.Louis MO (520) Tandem: COVLILCQ50T 🔧 Explore Switch(CLLI: GRCYILTADS0))
618-523	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	GERMANTOWN	GTWCILGTRS0	00/00/0000	Prefix Type: RBOC Switch Name: GERMANTOWN Switch Type: N/A LATA: St.Louis MO (520) Tandem: COVLILCQ50T 🔧 Explore Switch(CLLI: GTWCILGTRS0))
618-523 is split into 1,000-number blocks - detail below
618-523-4XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	GERMANTOWN	GTWCILGTRS0	N/A	Prefix Type: RBOC Switch Name: GERMANTOWN Switch Type: N/A LATA: St.Louis MO (520) Tandem: COVLILCQ50T 🔧 Explore Switch(CLLI: GTWCILGTRS0))
618-526	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	BREESE	BRESILBSDS0	00/00/0000	Prefix Type: RBOC Switch Name: BREESE Switch Type: DMS100 LATA: St.Louis MO (520) Tandem: COVLILCQ50T 🔧 Explore Switch(CLLI: BRESILBSDS0))
618-526 is split into 1,000-number blocks - detail below
618-526-0XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	BREESE	BRESILBSDS0	N/A	Prefix Type: RBOC Switch Name: BREESE Switch Type: DMS100 LATA: St.Louis MO (520) Tandem: COVLILCQ50T 🔧 Explore Switch(CLLI: BRESILBSDS0))
618-526-1XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	BREESE	BRESILBSDS0	N/A	Prefix Type: RBOC Switch Name: BREESE Switch Type: DMS100 LATA: St.Louis MO (520) Tandem: COVLILCQ50T 🔧 Explore Switch(CLLI: BRESILBSDS0))
618-526-2XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	BREESE	BRESILBSDS0	N/A	Prefix Type: RBOC Switch Name: BREESE Switch Type: DMS100 LATA: St.Louis MO (520) Tandem: COVLILCQ50T 🔧 Explore Switch(CLLI: BRESILBSDS0))
618-526-3XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	BREESE	BRESILBSDS0	N/A	Prefix Type: RBOC Switch Name: BREESE Switch Type: DMS100 LATA: St.Louis MO (520) Tandem: COVLILCQ50T 🔧 Explore Switch(CLLI: BRESILBSDS0))
618-526-4XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	BREESE	BRESILBSDS0	N/A	Prefix Type: RBOC Switch Name: BREESE Switch Type: DMS100 LATA: St.Louis MO (520) Tandem: COVLILCQ50T 🔧 Explore Switch(CLLI: BRESILBSDS0))
618-526-5XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	BREESE	BRESILBSDS0	N/A	Prefix Type: RBOC Switch Name: BREESE Switch Type: DMS100 LATA: St.Louis MO (520) Tandem: COVLILCQ50T 🔧 Explore Switch(CLLI: BRESILBSDS0))
618-526-7XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	BREESE	BRESILBSDS0	N/A	Prefix Type: RBOC Switch Name: BREESE Switch Type: DMS100 LATA: St.Louis MO (520) Tandem: COVLILCQ50T 🔧 Explore Switch(CLLI: BRESILBSDS0))
618-526-8XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	BREESE	BRESILBSDS0	N/A	Prefix Type: RBOC Switch Name: BREESE Switch Type: DMS100 LATA: St.Louis MO (520) Tandem: COVLILCQ50T 🔧 Explore Switch(CLLI: BRESILBSDS0))
618-532	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CENTRALIA	CENLILCEDS0	00/00/0000	Prefix Type: RBOC Switch Name: CENTRALIA DS0 Switch Type: DMS1/2 LATA: St.Louis MO (520) Tandem: CENLILCE51T 🔧 Explore Switch(CLLI: CENLILCEDS0))
618-533	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CENTRALIA	CENLILCEDS0	00/00/0000	Prefix Type: RBOC Switch Name: CENTRALIA DS0 Switch Type: DMS1/2 LATA: St.Louis MO (520) Tandem: CENLILCE51T 🔧 Explore Switch(CLLI: CENLILCEDS0))
618-537	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	LEBANON	LBNNILKGRS0	00/00/0000	Prefix Type: RBOC Switch Name: LEBANON Switch Type: N/A LATA: St.Louis MO (520) Tandem: COVLILCQ50T 🔧 Explore Switch(CLLI: LBNNILKGRS0))
618-537 is split into 1,000-number blocks - detail below
618-537-2XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	LEBANON	LBNNILKGRS0	N/A	Prefix Type: RBOC Switch Name: LEBANON Switch Type: N/A LATA: St.Louis MO (520) Tandem: COVLILCQ50T 🔧 Explore Switch(CLLI: LBNNILKGRS0))
618-537-3XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	LEBANON	LBNNILKGRS0	N/A	Prefix Type: RBOC Switch Name: LEBANON Switch Type: N/A LATA: St.Louis MO (520) Tandem: COVLILCQ50T 🔧 Explore Switch(CLLI: LBNNILKGRS0))
618-537-4XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	LEBANON	LBNNILKGRS0	N/A	Prefix Type: RBOC Switch Name: LEBANON Switch Type: N/A LATA: St.Louis MO (520) Tandem: COVLILCQ50T 🔧 Explore Switch(CLLI: LBNNILKGRS0))
618-537-6XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	LEBANON	LBNNILKGRS0	N/A	Prefix Type: RBOC Switch Name: LEBANON Switch Type: N/A LATA: St.Louis MO (520) Tandem: COVLILCQ50T 🔧 Explore Switch(CLLI: LBNNILKGRS0))
618-537-8XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	LEBANON	LBNNILKGRS0	N/A	Prefix Type: RBOC Switch Name: LEBANON Switch Type: N/A LATA: St.Louis MO (520) Tandem: COVLILCQ50T 🔧 Explore Switch(CLLI: LBNNILKGRS0))
618-537-9XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	LEBANON	LBNNILKGRS0	N/A	Prefix Type: RBOC Switch Name: LEBANON Switch Type: N/A LATA: St.Louis MO (520) Tandem: COVLILCQ50T 🔧 Explore Switch(CLLI: LBNNILKGRS0))
618-539	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	FREEBURG	FEBGILLXRS0	00/00/0000	Prefix Type: RBOC Switch Name: FREEBURG Switch Type: N/A LATA: St.Louis MO (520) Tandem: COVLILCQ50T 🔧 Explore Switch(CLLI: FEBGILLXRS0))
618-539 is split into 1,000-number blocks - detail below
618-539-0XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	FREEBURG	FEBGILLXRS0	N/A	Prefix Type: RBOC Switch Name: FREEBURG Switch Type: N/A LATA: St.Louis MO (520) Tandem: COVLILCQ50T 🔧 Explore Switch(CLLI: FEBGILLXRS0))
618-539-3XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	FREEBURG	FEBGILLXRS0	N/A	Prefix Type: RBOC Switch Name: FREEBURG Switch Type: N/A LATA: St.Louis MO (520) Tandem: COVLILCQ50T 🔧 Explore Switch(CLLI: FEBGILLXRS0))
618-539-4XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	FREEBURG	FEBGILLXRS0	N/A	Prefix Type: RBOC Switch Name: FREEBURG Switch Type: N/A LATA: St.Louis MO (520) Tandem: COVLILCQ50T 🔧 Explore Switch(CLLI: FEBGILLXRS0))
618-539-5XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	FREEBURG	FEBGILLXRS0	N/A	Prefix Type: RBOC Switch Name: FREEBURG Switch Type: N/A LATA: St.Louis MO (520) Tandem: COVLILCQ50T 🔧 Explore Switch(CLLI: FEBGILLXRS0))
618-539-6XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	FREEBURG	FEBGILLXRS0	N/A	Prefix Type: RBOC Switch Name: FREEBURG Switch Type: N/A LATA: St.Louis MO (520) Tandem: COVLILCQ50T 🔧 Explore Switch(CLLI: FEBGILLXRS0))
618-539-9XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	FREEBURG	FEBGILLXRS0	N/A	Prefix Type: RBOC Switch Name: FREEBURG Switch Type: N/A LATA: St.Louis MO (520) Tandem: COVLILCQ50T 🔧 Explore Switch(CLLI: FEBGILLXRS0))
618-545	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CENTRALIA	CENLILCEDS0	00/00/0000	Prefix Type: RBOC Switch Name: CENTRALIA DS0 Switch Type: DMS1/2 LATA: St.Louis MO (520) Tandem: CENLILCE51T 🔧 Explore Switch(CLLI: CENLILCEDS0))
618-545 is split into 1,000-number blocks - detail below
618-545-0XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CENTRALIA	CENLILCEDS0	N/A	Prefix Type: RBOC Switch Name: CENTRALIA DS0 Switch Type: DMS1/2 LATA: St.Louis MO (520) Tandem: CENLILCE51T 🔧 Explore Switch(CLLI: CENLILCEDS0))
618-545-1XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CENTRALIA	CENLILCEDS0	N/A	Prefix Type: RBOC Switch Name: CENTRALIA DS0 Switch Type: DMS1/2 LATA: St.Louis MO (520) Tandem: CENLILCE51T 🔧 Explore Switch(CLLI: CENLILCEDS0))
618-545-3XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CENTRALIA	CENLILCEDS0	N/A	Prefix Type: RBOC Switch Name: CENTRALIA DS0 Switch Type: DMS1/2 LATA: St.Louis MO (520) Tandem: CENLILCE51T 🔧 Explore Switch(CLLI: CENLILCEDS0))
618-545-6XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CENTRALIA	CENLILCEDS0	N/A	Prefix Type: RBOC Switch Name: CENTRALIA DS0 Switch Type: DMS1/2 LATA: St.Louis MO (520) Tandem: CENLILCE51T 🔧 Explore Switch(CLLI: CENLILCEDS0))
618-547	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	KINMUNDY	KMNDILKYRS0	00/00/0000	Prefix Type: RBOC Switch Name: KINMUNDY Switch Type: N/A LATA: St.Louis MO (520) Tandem: CENLILCE51T 🔧 Explore Switch(CLLI: KMNDILKYRS0))
618-547 is split into 1,000-number blocks - detail below
618-547-3XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	KINMUNDY	KMNDILKYRS0	N/A	Prefix Type: RBOC Switch Name: KINMUNDY Switch Type: N/A LATA: St.Louis MO (520) Tandem: CENLILCE51T 🔧 Explore Switch(CLLI: KMNDILKYRS0))
618-547-7XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	KINMUNDY	KMNDILKYRS0	N/A	Prefix Type: RBOC Switch Name: KINMUNDY Switch Type: N/A LATA: St.Louis MO (520) Tandem: CENLILCE51T 🔧 Explore Switch(CLLI: KMNDILKYRS0))
618-547-9XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	KINMUNDY	KMNDILKYRS0	N/A	Prefix Type: RBOC Switch Name: KINMUNDY Switch Type: N/A LATA: St.Louis MO (520) Tandem: CENLILCE51T 🔧 Explore Switch(CLLI: KMNDILKYRS0))
618-548	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	SALEM	SALMILSERS0	00/00/0000	Prefix Type: RBOC Switch Name: SALEM Switch Type: N/A LATA: St.Louis MO (520) Tandem: CENLILCE51T 🔧 Explore Switch(CLLI: SALMILSERS0))
618-583	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	E ST LOUIS	ESLSILBRDS0	00/00/0000	Prefix Type: RBOC Switch Name: EAST ST LOUIS Switch Type: EWSD LATA: St.Louis MO (520) Tandem: COVLILCQ50T 🔧 Explore Switch(CLLI: ESLSILBRDS0))
618-594	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CARLYLE	CRLYILCLRS0	00/00/0000	Prefix Type: RBOC Switch Name: CARLYLE Switch Type: N/A LATA: St.Louis MO (520) Tandem: COVLILCQ50T 🔧 Explore Switch(CLLI: CRLYILCLRS0))
618-594 is split into 1,000-number blocks - detail below
618-594-0XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CARLYLE	CRLYILCLRS0	N/A	Prefix Type: RBOC Switch Name: CARLYLE Switch Type: N/A LATA: St.Louis MO (520) Tandem: COVLILCQ50T 🔧 Explore Switch(CLLI: CRLYILCLRS0))
618-594-2XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CARLYLE	CRLYILCLRS0	N/A	Prefix Type: RBOC Switch Name: CARLYLE Switch Type: N/A LATA: St.Louis MO (520) Tandem: COVLILCQ50T 🔧 Explore Switch(CLLI: CRLYILCLRS0))
618-594-3XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CARLYLE	CRLYILCLRS0	N/A	Prefix Type: RBOC Switch Name: CARLYLE Switch Type: N/A LATA: St.Louis MO (520) Tandem: COVLILCQ50T 🔧 Explore Switch(CLLI: CRLYILCLRS0))
618-594-4XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CARLYLE	CRLYILCLRS0	N/A	Prefix Type: RBOC Switch Name: CARLYLE Switch Type: N/A LATA: St.Louis MO (520) Tandem: COVLILCQ50T 🔧 Explore Switch(CLLI: CRLYILCLRS0))
618-594-7XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CARLYLE	CRLYILCLRS0	N/A	Prefix Type: RBOC Switch Name: CARLYLE Switch Type: N/A LATA: St.Louis MO (520) Tandem: COVLILCQ50T 🔧 Explore Switch(CLLI: CRLYILCLRS0))
618-594-8XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CARLYLE	CRLYILCLRS0	N/A	Prefix Type: RBOC Switch Name: CARLYLE Switch Type: N/A LATA: St.Louis MO (520) Tandem: COVLILCQ50T 🔧 Explore Switch(CLLI: CRLYILCLRS0))
618-622	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	O FALLON	OFLNILMQDS0	00/00/0000	Prefix Type: RBOC Switch Name: O'FALLON Switch Type: Northern Telecom DMS100 (Digital) Host LATA: St.Louis MO (520) Tandem: N/A 🔧 Explore Switch(CLLI: OFLNILMQDS0))
618-622 is split into 1,000-number blocks - detail below
618-622-0XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	O FALLON	OFLNILMQDS0	N/A	Prefix Type: RBOC Switch Name: O'FALLON Switch Type: Northern Telecom DMS100 (Digital) Host LATA: St.Louis MO (520) Tandem: N/A 🔧 Explore Switch(CLLI: OFLNILMQDS0))
618-622-1XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	O FALLON	OFLNILMQDS0	N/A	Prefix Type: RBOC Switch Name: O'FALLON Switch Type: Northern Telecom DMS100 (Digital) Host LATA: St.Louis MO (520) Tandem: N/A 🔧 Explore Switch(CLLI: OFLNILMQDS0))
618-622-2XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	O FALLON	OFLNILMQDS0	N/A	Prefix Type: RBOC Switch Name: O'FALLON Switch Type: Northern Telecom DMS100 (Digital) Host LATA: St.Louis MO (520) Tandem: N/A 🔧 Explore Switch(CLLI: OFLNILMQDS0))
618-622-3XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	O FALLON	OFLNILMQDS0	N/A	Prefix Type: RBOC Switch Name: O'FALLON Switch Type: Northern Telecom DMS100 (Digital) Host LATA: St.Louis MO (520) Tandem: N/A 🔧 Explore Switch(CLLI: OFLNILMQDS0))
618-622-4XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	O FALLON	OFLNILMQDS0	N/A	Prefix Type: RBOC Switch Name: O'FALLON Switch Type: Northern Telecom DMS100 (Digital) Host LATA: St.Louis MO (520) Tandem: N/A 🔧 Explore Switch(CLLI: OFLNILMQDS0))
618-622-5XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	O FALLON	OFLNILMQDS0	N/A	Prefix Type: RBOC Switch Name: O'FALLON Switch Type: Northern Telecom DMS100 (Digital) Host LATA: St.Louis MO (520) Tandem: N/A 🔧 Explore Switch(CLLI: OFLNILMQDS0))
618-622-6XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	O FALLON	OFLNILMQDS0	N/A	Prefix Type: RBOC Switch Name: O'FALLON Switch Type: Northern Telecom DMS100 (Digital) Host LATA: St.Louis MO (520) Tandem: N/A 🔧 Explore Switch(CLLI: OFLNILMQDS0))
618-622-8XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	O FALLON	OFLNILMQDS0	N/A	Prefix Type: RBOC Switch Name: O'FALLON Switch Type: Northern Telecom DMS100 (Digital) Host LATA: St.Louis MO (520) Tandem: N/A 🔧 Explore Switch(CLLI: OFLNILMQDS0))
618-622-9XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	O FALLON	OFLNILMQDS0	N/A	Prefix Type: RBOC Switch Name: O'FALLON Switch Type: Northern Telecom DMS100 (Digital) Host LATA: St.Louis MO (520) Tandem: N/A 🔧 Explore Switch(CLLI: OFLNILMQDS0))
618-624	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	O FALLON	OFLNILMQDS0	00/00/0000	Prefix Type: RBOC Switch Name: O'FALLON Switch Type: Northern Telecom DMS100 (Digital) Host LATA: St.Louis MO (520) Tandem: N/A 🔧 Explore Switch(CLLI: OFLNILMQDS0))
618-628	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	O FALLON	OFLNILMQDS0	00/00/0000	Prefix Type: RBOC Switch Name: O'FALLON Switch Type: Northern Telecom DMS100 (Digital) Host LATA: St.Louis MO (520) Tandem: N/A 🔧 Explore Switch(CLLI: OFLNILMQDS0))
618-632	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	O FALLON	OFLNILMQDS0	00/00/0000	Prefix Type: RBOC Switch Name: O'FALLON Switch Type: Northern Telecom DMS100 (Digital) Host LATA: St.Louis MO (520) Tandem: N/A 🔧 Explore Switch(CLLI: OFLNILMQDS0))
618-641	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	BELLEVILLE	BLVLILADDS0	00/00/0000	Prefix Type: RBOC Switch Name: BELLEVILLE ADAMS Switch Type: DMS100 LATA: St.Louis MO (520) Tandem: COVLILCQ50T 🔧 Explore Switch(CLLI: BLVLILADDS0))
618-641 is split into 1,000-number blocks - detail below
618-641-0XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	BELLEVILLE	BLVLILADDS0	N/A	Prefix Type: RBOC Switch Name: BELLEVILLE ADAMS Switch Type: DMS100 LATA: St.Louis MO (520) Tandem: COVLILCQ50T 🔧 Explore Switch(CLLI: BLVLILADDS0))
618-641-2XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	BELLEVILLE	BLVLILADDS0	N/A	Prefix Type: RBOC Switch Name: BELLEVILLE ADAMS Switch Type: DMS100 LATA: St.Louis MO (520) Tandem: COVLILCQ50T 🔧 Explore Switch(CLLI: BLVLILADDS0))
618-641-4XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	BELLEVILLE	BLVLILADDS0	N/A	Prefix Type: RBOC Switch Name: BELLEVILLE ADAMS Switch Type: DMS100 LATA: St.Louis MO (520) Tandem: COVLILCQ50T 🔧 Explore Switch(CLLI: BLVLILADDS0))
618-641-5XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	BELLEVILLE	BLVLILADDS0	N/A	Prefix Type: RBOC Switch Name: BELLEVILLE ADAMS Switch Type: DMS100 LATA: St.Louis MO (520) Tandem: COVLILCQ50T 🔧 Explore Switch(CLLI: BLVLILADDS0))
618-641-6XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	BELLEVILLE	BLVLILADDS0	N/A	Prefix Type: RBOC Switch Name: BELLEVILLE ADAMS Switch Type: DMS100 LATA: St.Louis MO (520) Tandem: COVLILCQ50T 🔧 Explore Switch(CLLI: BLVLILADDS0))
618-646	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	E ST LOUIS	ESLSILBRDS0	00/00/0000	Prefix Type: RBOC Switch Name: EAST ST LOUIS Switch Type: EWSD LATA: St.Louis MO (520) Tandem: COVLILCQ50T 🔧 Explore Switch(CLLI: ESLSILBRDS0))
618-646 is split into 1,000-number blocks - detail below
618-646-0XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	E ST LOUIS	ESLSILBRDS0	N/A	Prefix Type: RBOC Switch Name: EAST ST LOUIS Switch Type: EWSD LATA: St.Louis MO (520) Tandem: COVLILCQ50T 🔧 Explore Switch(CLLI: ESLSILBRDS0))
618-646-1XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	E ST LOUIS	ESLSILBRDS0	N/A	Prefix Type: RBOC Switch Name: EAST ST LOUIS Switch Type: EWSD LATA: St.Louis MO (520) Tandem: COVLILCQ50T 🔧 Explore Switch(CLLI: ESLSILBRDS0))
618-646-2XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	E ST LOUIS	ESLSILBRDS0	N/A	Prefix Type: RBOC Switch Name: EAST ST LOUIS Switch Type: EWSD LATA: St.Louis MO (520) Tandem: COVLILCQ50T 🔧 Explore Switch(CLLI: ESLSILBRDS0))
618-646-3XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	E ST LOUIS	ESLSILBRDS0	N/A	Prefix Type: RBOC Switch Name: EAST ST LOUIS Switch Type: EWSD LATA: St.Louis MO (520) Tandem: COVLILCQ50T 🔧 Explore Switch(CLLI: ESLSILBRDS0))
618-646-5XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	E ST LOUIS	ESLSILBRDS0	N/A	Prefix Type: RBOC Switch Name: EAST ST LOUIS Switch Type: EWSD LATA: St.Louis MO (520) Tandem: COVLILCQ50T 🔧 Explore Switch(CLLI: ESLSILBRDS0))
618-646-6XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	E ST LOUIS	ESLSILBRDS0	N/A	Prefix Type: RBOC Switch Name: EAST ST LOUIS Switch Type: EWSD LATA: St.Louis MO (520) Tandem: COVLILCQ50T 🔧 Explore Switch(CLLI: ESLSILBRDS0))
618-646-7XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	E ST LOUIS	ESLSILBRDS0	N/A	Prefix Type: RBOC Switch Name: EAST ST LOUIS Switch Type: EWSD LATA: St.Louis MO (520) Tandem: COVLILCQ50T 🔧 Explore Switch(CLLI: ESLSILBRDS0))
618-646-8XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	E ST LOUIS	ESLSILBRDS0	N/A	Prefix Type: RBOC Switch Name: EAST ST LOUIS Switch Type: EWSD LATA: St.Louis MO (520) Tandem: COVLILCQ50T 🔧 Explore Switch(CLLI: ESLSILBRDS0))
618-650	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	EDWARDSVL	EWVLILERDS0	00/00/0000	Prefix Type: RBOC Switch Name: EDWARDSVILLE Switch Type: DMS100 LATA: St.Louis MO (520) Tandem: COVLILCQ50T 🔧 Explore Switch(CLLI: EWVLILERDS0))
618-650 is split into 1,000-number blocks - detail below
618-650-0XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	EDWARDSVL	EWVLILERDS0	N/A	Prefix Type: RBOC Switch Name: EDWARDSVILLE Switch Type: DMS100 LATA: St.Louis MO (520) Tandem: COVLILCQ50T 🔧 Explore Switch(CLLI: EWVLILERDS0))
618-650-1XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	EDWARDSVL	EWVLILERDS0	N/A	Prefix Type: RBOC Switch Name: EDWARDSVILLE Switch Type: DMS100 LATA: St.Louis MO (520) Tandem: COVLILCQ50T 🔧 Explore Switch(CLLI: EWVLILERDS0))
618-650-2XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	EDWARDSVL	EWVLILERDS0	N/A	Prefix Type: RBOC Switch Name: EDWARDSVILLE Switch Type: DMS100 LATA: St.Louis MO (520) Tandem: COVLILCQ50T 🔧 Explore Switch(CLLI: EWVLILERDS0))
618-650-3XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	EDWARDSVL	EWVLILERDS0	N/A	Prefix Type: RBOC Switch Name: EDWARDSVILLE Switch Type: DMS100 LATA: St.Louis MO (520) Tandem: COVLILCQ50T 🔧 Explore Switch(CLLI: EWVLILERDS0))
618-650-4XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	EDWARDSVL	EWVLILERDS0	N/A	Prefix Type: RBOC Switch Name: EDWARDSVILLE Switch Type: DMS100 LATA: St.Louis MO (520) Tandem: COVLILCQ50T 🔧 Explore Switch(CLLI: EWVLILERDS0))
618-650-5XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	EDWARDSVL	EWVLILERDS0	N/A	Prefix Type: RBOC Switch Name: EDWARDSVILLE Switch Type: DMS100 LATA: St.Louis MO (520) Tandem: COVLILCQ50T 🔧 Explore Switch(CLLI: EWVLILERDS0))
618-650-6XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	EDWARDSVL	EWVLILERDS0	N/A	Prefix Type: RBOC Switch Name: EDWARDSVILLE Switch Type: DMS100 LATA: St.Louis MO (520) Tandem: COVLILCQ50T 🔧 Explore Switch(CLLI: EWVLILERDS0))
618-650-7XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	EDWARDSVL	EWVLILERDS0	N/A	Prefix Type: RBOC Switch Name: EDWARDSVILLE Switch Type: DMS100 LATA: St.Louis MO (520) Tandem: COVLILCQ50T 🔧 Explore Switch(CLLI: EWVLILERDS0))
618-655	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	EDWARDSVL	EWVLILERDS0	00/00/0000	Prefix Type: RBOC Switch Name: EDWARDSVILLE Switch Type: DMS100 LATA: St.Louis MO (520) Tandem: COVLILCQ50T 🔧 Explore Switch(CLLI: EWVLILERDS0))
618-655 is split into 1,000-number blocks - detail below
618-655-0XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	EDWARDSVL	EWVLILERDS0	N/A	Prefix Type: RBOC Switch Name: EDWARDSVILLE Switch Type: DMS100 LATA: St.Louis MO (520) Tandem: COVLILCQ50T 🔧 Explore Switch(CLLI: EWVLILERDS0))
618-655-1XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	EDWARDSVL	EWVLILERDS0	N/A	Prefix Type: RBOC Switch Name: EDWARDSVILLE Switch Type: DMS100 LATA: St.Louis MO (520) Tandem: COVLILCQ50T 🔧 Explore Switch(CLLI: EWVLILERDS0))
618-655-2XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	EDWARDSVL	EWVLILERDS0	N/A	Prefix Type: RBOC Switch Name: EDWARDSVILLE Switch Type: DMS100 LATA: St.Louis MO (520) Tandem: COVLILCQ50T 🔧 Explore Switch(CLLI: EWVLILERDS0))
618-655-6XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	EDWARDSVL	EWVLILERDS0	N/A	Prefix Type: RBOC Switch Name: EDWARDSVILLE Switch Type: DMS100 LATA: St.Louis MO (520) Tandem: COVLILCQ50T 🔧 Explore Switch(CLLI: EWVLILERDS0))
618-655-7XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	EDWARDSVL	EWVLILERDS0	N/A	Prefix Type: RBOC Switch Name: EDWARDSVILLE Switch Type: DMS100 LATA: St.Louis MO (520) Tandem: COVLILCQ50T 🔧 Explore Switch(CLLI: EWVLILERDS0))
618-655-9XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	EDWARDSVL	EWVLILERDS0	N/A	Prefix Type: RBOC Switch Name: EDWARDSVILLE Switch Type: DMS100 LATA: St.Louis MO (520) Tandem: COVLILCQ50T 🔧 Explore Switch(CLLI: EWVLILERDS0))
618-656	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	EDWARDSVL	EWVLILERDS0	00/00/0000	Prefix Type: RBOC Switch Name: EDWARDSVILLE Switch Type: DMS100 LATA: St.Louis MO (520) Tandem: COVLILCQ50T 🔧 Explore Switch(CLLI: EWVLILERDS0))
618-659	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	EDWARDSVL	EWVLILERDS0	00/00/0000	Prefix Type: RBOC Switch Name: EDWARDSVILLE Switch Type: DMS100 LATA: St.Louis MO (520) Tandem: COVLILCQ50T 🔧 Explore Switch(CLLI: EWVLILERDS0))
618-659 is split into 1,000-number blocks - detail below
618-659-0XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	EDWARDSVL	EWVLILERDS0	N/A	Prefix Type: RBOC Switch Name: EDWARDSVILLE Switch Type: DMS100 LATA: St.Louis MO (520) Tandem: COVLILCQ50T 🔧 Explore Switch(CLLI: EWVLILERDS0))
618-659-1XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	EDWARDSVL	EWVLILERDS0	N/A	Prefix Type: RBOC Switch Name: EDWARDSVILLE Switch Type: DMS100 LATA: St.Louis MO (520) Tandem: COVLILCQ50T 🔧 Explore Switch(CLLI: EWVLILERDS0))
618-659-2XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	EDWARDSVL	EWVLILERDS0	N/A	Prefix Type: RBOC Switch Name: EDWARDSVILLE Switch Type: DMS100 LATA: St.Louis MO (520) Tandem: COVLILCQ50T 🔧 Explore Switch(CLLI: EWVLILERDS0))
618-659-3XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	EDWARDSVL	EWVLILERDS0	N/A	Prefix Type: RBOC Switch Name: EDWARDSVILLE Switch Type: DMS100 LATA: St.Louis MO (520) Tandem: COVLILCQ50T 🔧 Explore Switch(CLLI: EWVLILERDS0))
618-659-4XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	EDWARDSVL	EWVLILERDS0	N/A	Prefix Type: RBOC Switch Name: EDWARDSVILLE Switch Type: DMS100 LATA: St.Louis MO (520) Tandem: COVLILCQ50T 🔧 Explore Switch(CLLI: EWVLILERDS0))
618-659-6XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	EDWARDSVL	EWVLILERDS0	N/A	Prefix Type: RBOC Switch Name: EDWARDSVILLE Switch Type: DMS100 LATA: St.Louis MO (520) Tandem: COVLILCQ50T 🔧 Explore Switch(CLLI: EWVLILERDS0))
618-659-8XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	EDWARDSVL	EWVLILERDS0	N/A	Prefix Type: RBOC Switch Name: EDWARDSVILLE Switch Type: DMS100 LATA: St.Louis MO (520) Tandem: COVLILCQ50T 🔧 Explore Switch(CLLI: EWVLILERDS0))
618-659-9XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	EDWARDSVL	EWVLILERDS0	N/A	Prefix Type: RBOC Switch Name: EDWARDSVILLE Switch Type: DMS100 LATA: St.Louis MO (520) Tandem: COVLILCQ50T 🔧 Explore Switch(CLLI: EWVLILERDS0))
618-664	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	GREENVILLE	GNVLILGRRS0	00/00/0000	Prefix Type: RBOC Switch Name: GREENVILLE Switch Type: N/A LATA: St.Louis MO (520) Tandem: CENLILCE51T 🔧 Explore Switch(CLLI: GNVLILGRRS0))
618-664 is split into 1,000-number blocks - detail below
618-664-0XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	GREENVILLE	GNVLILGRRS0	N/A	Prefix Type: RBOC Switch Name: GREENVILLE Switch Type: N/A LATA: St.Louis MO (520) Tandem: CENLILCE51T 🔧 Explore Switch(CLLI: GNVLILGRRS0))
618-664-1XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	GREENVILLE	GNVLILGRRS0	N/A	Prefix Type: RBOC Switch Name: GREENVILLE Switch Type: N/A LATA: St.Louis MO (520) Tandem: CENLILCE51T 🔧 Explore Switch(CLLI: GNVLILGRRS0))
618-664-2XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	GREENVILLE	GNVLILGRRS0	N/A	Prefix Type: RBOC Switch Name: GREENVILLE Switch Type: N/A LATA: St.Louis MO (520) Tandem: CENLILCE51T 🔧 Explore Switch(CLLI: GNVLILGRRS0))
618-664-3XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	GREENVILLE	GNVLILGRRS0	N/A	Prefix Type: RBOC Switch Name: GREENVILLE Switch Type: N/A LATA: St.Louis MO (520) Tandem: CENLILCE51T 🔧 Explore Switch(CLLI: GNVLILGRRS0))
618-664-4XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	GREENVILLE	GNVLILGRRS0	N/A	Prefix Type: RBOC Switch Name: GREENVILLE Switch Type: N/A LATA: St.Louis MO (520) Tandem: CENLILCE51T 🔧 Explore Switch(CLLI: GNVLILGRRS0))
618-664-5XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	GREENVILLE	GNVLILGRRS0	N/A	Prefix Type: RBOC Switch Name: GREENVILLE Switch Type: N/A LATA: St.Louis MO (520) Tandem: CENLILCE51T 🔧 Explore Switch(CLLI: GNVLILGRRS0))
618-664-6XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	GREENVILLE	GNVLILGRRS0	N/A	Prefix Type: RBOC Switch Name: GREENVILLE Switch Type: N/A LATA: St.Louis MO (520) Tandem: CENLILCE51T 🔧 Explore Switch(CLLI: GNVLILGRRS0))
618-664-9XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	GREENVILLE	GNVLILGRRS0	N/A	Prefix Type: RBOC Switch Name: GREENVILLE Switch Type: N/A LATA: St.Louis MO (520) Tandem: CENLILCE51T 🔧 Explore Switch(CLLI: GNVLILGRRS0))
618-667	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	TROY	TROYILTYRS0	00/00/0000	Prefix Type: RBOC Switch Name: TROY RS0 Switch Type: N/A LATA: St.Louis MO (520) Tandem: COVLILCQ50T 🔧 Explore Switch(CLLI: TROYILTYRS0))
618-690	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	GREENVILLE	GNVLILGRRS0	12/06/2001	Prefix Type: RBOC Switch Name: GREENVILLE Switch Type: N/A LATA: St.Louis MO (520) Tandem: CENLILCE51T 🔧 Explore Switch(CLLI: GNVLILGRRS0))
618-690 is split into 1,000-number blocks - detail below
618-690-3XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	GREENVILLE	GNVLILGRRS0	06/20/2003	Prefix Type: RBOC Switch Name: GREENVILLE Switch Type: N/A LATA: St.Louis MO (520) Tandem: CENLILCE51T 🔧 Explore Switch(CLLI: GNVLILGRRS0))
618-692	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	EDWARDSVL	EWVLILERDS0	00/00/0000	Prefix Type: RBOC Switch Name: EDWARDSVILLE Switch Type: DMS100 LATA: St.Louis MO (520) Tandem: COVLILCQ50T 🔧 Explore Switch(CLLI: EWVLILERDS0))
618-692 is split into 1,000-number blocks - detail below
618-692-0XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	EDWARDSVL	EWVLILERDS0	N/A	Prefix Type: RBOC Switch Name: EDWARDSVILLE Switch Type: DMS100 LATA: St.Louis MO (520) Tandem: COVLILCQ50T 🔧 Explore Switch(CLLI: EWVLILERDS0))
618-692-1XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	EDWARDSVL	EWVLILERDS0	N/A	Prefix Type: RBOC Switch Name: EDWARDSVILLE Switch Type: DMS100 LATA: St.Louis MO (520) Tandem: COVLILCQ50T 🔧 Explore Switch(CLLI: EWVLILERDS0))
618-692-2XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	EDWARDSVL	EWVLILERDS0	N/A	Prefix Type: RBOC Switch Name: EDWARDSVILLE Switch Type: DMS100 LATA: St.Louis MO (520) Tandem: COVLILCQ50T 🔧 Explore Switch(CLLI: EWVLILERDS0))
618-692-3XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	EDWARDSVL	EWVLILERDS0	N/A	Prefix Type: RBOC Switch Name: EDWARDSVILLE Switch Type: DMS100 LATA: St.Louis MO (520) Tandem: COVLILCQ50T 🔧 Explore Switch(CLLI: EWVLILERDS0))
618-692-4XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	EDWARDSVL	EWVLILERDS0	N/A	Prefix Type: RBOC Switch Name: EDWARDSVILLE Switch Type: DMS100 LATA: St.Louis MO (520) Tandem: COVLILCQ50T 🔧 Explore Switch(CLLI: EWVLILERDS0))
618-692-6XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	EDWARDSVL	EWVLILERDS0	N/A	Prefix Type: RBOC Switch Name: EDWARDSVILLE Switch Type: DMS100 LATA: St.Louis MO (520) Tandem: COVLILCQ50T 🔧 Explore Switch(CLLI: EWVLILERDS0))
618-692-7XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	EDWARDSVL	EWVLILERDS0	N/A	Prefix Type: RBOC Switch Name: EDWARDSVILLE Switch Type: DMS100 LATA: St.Louis MO (520) Tandem: COVLILCQ50T 🔧 Explore Switch(CLLI: EWVLILERDS0))
618-692-8XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	EDWARDSVL	EWVLILERDS0	N/A	Prefix Type: RBOC Switch Name: EDWARDSVILLE Switch Type: DMS100 LATA: St.Louis MO (520) Tandem: COVLILCQ50T 🔧 Explore Switch(CLLI: EWVLILERDS0))
618-692-9XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	EDWARDSVL	EWVLILERDS0	N/A	Prefix Type: RBOC Switch Name: EDWARDSVILLE Switch Type: DMS100 LATA: St.Louis MO (520) Tandem: COVLILCQ50T 🔧 Explore Switch(CLLI: EWVLILERDS0))
618-732	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	BLUFORD	BUFDILBLRS0	00/00/0000	Prefix Type: RBOC Switch Name: BLUFORD Switch Type: N/A LATA: St.Louis MO (520) Tandem: CENLILCE51T 🔧 Explore Switch(CLLI: BUFDILBLRS0))
618-732 is split into 1,000-number blocks - detail below
618-732-6XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	BLUFORD	BUFDILBLRS0	N/A	Prefix Type: RBOC Switch Name: BLUFORD Switch Type: N/A LATA: St.Louis MO (520) Tandem: CENLILCE51T 🔧 Explore Switch(CLLI: BUFDILBLRS0))
618-732-8XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	BLUFORD	BUFDILBLRS0	N/A	Prefix Type: RBOC Switch Name: BLUFORD Switch Type: N/A LATA: St.Louis MO (520) Tandem: CENLILCE51T 🔧 Explore Switch(CLLI: BUFDILBLRS0))
618-734	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CAIRO	CAIRILCFDS0	00/00/0000	Prefix Type: RBOC Switch Name: CAIRO Switch Type: EWSD LATA: Cairo IL (362) Tandem: CRDLILXE51T 🔧 Explore Switch(CLLI: CAIRILCFDS0))
618-734 is split into 1,000-number blocks - detail below
618-734-0XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CAIRO	CAIRILCFDS0	N/A	Prefix Type: RBOC Switch Name: CAIRO Switch Type: EWSD LATA: Cairo IL (362) Tandem: CRDLILXE51T 🔧 Explore Switch(CLLI: CAIRILCFDS0))
618-734-1XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CAIRO	CAIRILCFDS0	N/A	Prefix Type: RBOC Switch Name: CAIRO Switch Type: EWSD LATA: Cairo IL (362) Tandem: CRDLILXE51T 🔧 Explore Switch(CLLI: CAIRILCFDS0))
618-734-2XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CAIRO	CAIRILCFDS0	N/A	Prefix Type: RBOC Switch Name: CAIRO Switch Type: EWSD LATA: Cairo IL (362) Tandem: CRDLILXE51T 🔧 Explore Switch(CLLI: CAIRILCFDS0))
618-734-4XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CAIRO	CAIRILCFDS0	N/A	Prefix Type: RBOC Switch Name: CAIRO Switch Type: EWSD LATA: Cairo IL (362) Tandem: CRDLILXE51T 🔧 Explore Switch(CLLI: CAIRILCFDS0))
618-734-9XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CAIRO	CAIRILCFDS0	N/A	Prefix Type: RBOC Switch Name: CAIRO Switch Type: EWSD LATA: Cairo IL (362) Tandem: CRDLILXE51T 🔧 Explore Switch(CLLI: CAIRILCFDS0))
618-742	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	MOUND CITY	OLMSILOMRS0	00/00/0000	Prefix Type: RBOC Switch Name: OLMSTED Switch Type: N/A LATA: Cairo IL (362) Tandem: CRDLILXE51T 🔧 Explore Switch(CLLI: OLMSILOMRS0))
618-742 is split into 1,000-number blocks - detail below
618-742-6XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	MOUND CITY	OLMSILOMRS0	N/A	Prefix Type: RBOC Switch Name: OLMSTED Switch Type: N/A LATA: Cairo IL (362) Tandem: CRDLILXE51T 🔧 Explore Switch(CLLI: OLMSILOMRS0))
618-744	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	BELLEVILLE	BLVLILPXRS0	00/00/0000	Prefix Type: RBOC Switch Name: BELLEVILLE PIONEER Switch Type: N/A LATA: St.Louis MO (520) Tandem: COVLILCQ50T 🔧 Explore Switch(CLLI: BLVLILPXRS0))
618-744 is split into 1,000-number blocks - detail below
618-744-9XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	BELLEVILLE	BLVLILPXRS0	N/A	Prefix Type: RBOC Switch Name: BELLEVILLE PIONEER Switch Type: N/A LATA: St.Louis MO (520) Tandem: COVLILCQ50T 🔧 Explore Switch(CLLI: BLVLILPXRS0))
618-745	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	MOUNDS	MNDSILAARS0	00/00/0000	Prefix Type: RBOC Switch Name: MOUNDS Switch Type: N/A LATA: Cairo IL (362) Tandem: CRDLILXE51T 🔧 Explore Switch(CLLI: MNDSILAARS0))
618-745 is split into 1,000-number blocks - detail below
618-745-6XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	MOUNDS	MNDSILAARS0	N/A	Prefix Type: RBOC Switch Name: MOUNDS Switch Type: N/A LATA: Cairo IL (362) Tandem: CRDLILXE51T 🔧 Explore Switch(CLLI: MNDSILAARS0))
618-745-9XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	MOUNDS	MNDSILAARS0	N/A	Prefix Type: RBOC Switch Name: MOUNDS Switch Type: N/A LATA: Cairo IL (362) Tandem: CRDLILXE51T 🔧 Explore Switch(CLLI: MNDSILAARS0))
618-746	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	BELLEVILLE	BLVLILPXRS0	00/00/0000	Prefix Type: RBOC Switch Name: BELLEVILLE PIONEER Switch Type: N/A LATA: St.Louis MO (520) Tandem: COVLILCQ50T 🔧 Explore Switch(CLLI: BLVLILPXRS0))
618-746 is split into 1,000-number blocks - detail below
618-746-4XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	BELLEVILLE	BLVLILPXRS0	N/A	Prefix Type: RBOC Switch Name: BELLEVILLE PIONEER Switch Type: N/A LATA: St.Louis MO (520) Tandem: COVLILCQ50T 🔧 Explore Switch(CLLI: BLVLILPXRS0))
618-747	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	TAMMS	TMMSILTMRS0	00/00/0000	Prefix Type: RBOC Switch Name: TAMMS Switch Type: N/A LATA: Cairo IL (362) Tandem: CRDLILXE51T 🔧 Explore Switch(CLLI: TMMSILTMRS0))
618-747 is split into 1,000-number blocks - detail below
618-747-2XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	TAMMS	TMMSILTMRS0	N/A	Prefix Type: RBOC Switch Name: TAMMS Switch Type: N/A LATA: Cairo IL (362) Tandem: CRDLILXE51T 🔧 Explore Switch(CLLI: TMMSILTMRS0))
618-747-9XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	TAMMS	TMMSILTMRS0	N/A	Prefix Type: RBOC Switch Name: TAMMS Switch Type: N/A LATA: Cairo IL (362) Tandem: CRDLILXE51T 🔧 Explore Switch(CLLI: TMMSILTMRS0))
618-748	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	MOUND CITY	MDCYILAARS0	00/00/0000	Prefix Type: RBOC Switch Name: MOUND CITY Switch Type: N/A LATA: Cairo IL (362) Tandem: CRDLILXE51T 🔧 Explore Switch(CLLI: MDCYILAARS0))
618-748 is split into 1,000-number blocks - detail below
618-748-9XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	MOUND CITY	MDCYILAARS0	N/A	Prefix Type: RBOC Switch Name: MOUND CITY Switch Type: N/A LATA: Cairo IL (362) Tandem: CRDLILXE51T 🔧 Explore Switch(CLLI: MDCYILAARS0))
618-755	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	HARMONY	HRMJILHMRS0	00/00/0000	Prefix Type: RBOC Switch Name: HARMONY Switch Type: N/A LATA: St.Louis MO (520) Tandem: CENLILCE51T 🔧 Explore Switch(CLLI: HRMJILHMRS0))
618-755 is split into 1,000-number blocks - detail below
618-755-4XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	HARMONY	HRMJILHMRS0	N/A	Prefix Type: RBOC Switch Name: HARMONY Switch Type: N/A LATA: St.Louis MO (520) Tandem: CENLILCE51T 🔧 Explore Switch(CLLI: HRMJILHMRS0))
618-755-9XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	HARMONY	HRMJILHMRS0	N/A	Prefix Type: RBOC Switch Name: HARMONY Switch Type: N/A LATA: St.Louis MO (520) Tandem: CENLILCE51T 🔧 Explore Switch(CLLI: HRMJILHMRS0))
618-764	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	THEBES	THBSILTHRS0	00/00/0000	Prefix Type: RBOC Switch Name: THEBES Switch Type: N/A LATA: Cairo IL (362) Tandem: CRDLILXE51T 🔧 Explore Switch(CLLI: THBSILTHRS0))
618-764 is split into 1,000-number blocks - detail below
618-764-2XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	THEBES	THBSILTHRS0	N/A	Prefix Type: RBOC Switch Name: THEBES Switch Type: N/A LATA: Cairo IL (362) Tandem: CRDLILXE51T 🔧 Explore Switch(CLLI: THBSILTHRS0))
618-767 is split into 1,000-number blocks - detail below
618-767-2XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	BELLEVILLE	BLVLILADDS0	03/15/2010	Prefix Type: RBOC Switch Name: BELLEVILLE ADAMS Switch Type: DMS100 LATA: St.Louis MO (520) Tandem: COVLILCQ50T 🔧 Explore Switch(CLLI: BLVLILADDS0))
618-767-3XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	BELLEVILLE	BLVLILADDS0	03/15/2010	Prefix Type: RBOC Switch Name: BELLEVILLE ADAMS Switch Type: DMS100 LATA: St.Louis MO (520) Tandem: COVLILCQ50T 🔧 Explore Switch(CLLI: BLVLILADDS0))
618-767-7XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	BELLEVILLE	BLVLILADDS0	03/15/2010	Prefix Type: RBOC Switch Name: BELLEVILLE ADAMS Switch Type: DMS100 LATA: St.Louis MO (520) Tandem: COVLILCQ50T 🔧 Explore Switch(CLLI: BLVLILADDS0))
618-776	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	OLIVE BRCH	OLBRILOBRS0	00/00/0000	Prefix Type: RBOC Switch Name: OLIVE BRANCH Switch Type: N/A LATA: Cairo IL (362) Tandem: CRDLILXE51T 🔧 Explore Switch(CLLI: OLBRILOBRS0))
618-776 is split into 1,000-number blocks - detail below
618-776-5XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	OLIVE BRCH	OLBRILOBRS0	N/A	Prefix Type: RBOC Switch Name: OLIVE BRANCH Switch Type: N/A LATA: Cairo IL (362) Tandem: CRDLILXE51T 🔧 Explore Switch(CLLI: OLBRILOBRS0))
618-776-6XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	OLIVE BRCH	OLBRILOBRS0	N/A	Prefix Type: RBOC Switch Name: OLIVE BRANCH Switch Type: N/A LATA: Cairo IL (362) Tandem: CRDLILXE51T 🔧 Explore Switch(CLLI: OLBRILOBRS0))
618-797	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	GRANITE CY	PNBHILSYDS0	00/00/0000	Prefix Type: RBOC Switch Name: PONTOON BEACH SY Switch Type: EWSD LATA: St.Louis MO (520) Tandem: COVLILCQ50T 🔧 Explore Switch(CLLI: PNBHILSYDS0))
618-797 is split into 1,000-number blocks - detail below
618-797-0XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	GRANITE CY	PNBHILSYDS0	N/A	Prefix Type: RBOC Switch Name: PONTOON BEACH SY Switch Type: EWSD LATA: St.Louis MO (520) Tandem: COVLILCQ50T 🔧 Explore Switch(CLLI: PNBHILSYDS0))
618-797-1XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	GRANITE CY	PNBHILSYDS0	N/A	Prefix Type: RBOC Switch Name: PONTOON BEACH SY Switch Type: EWSD LATA: St.Louis MO (520) Tandem: COVLILCQ50T 🔧 Explore Switch(CLLI: PNBHILSYDS0))
618-797-2XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	GRANITE CY	PNBHILSYDS0	N/A	Prefix Type: RBOC Switch Name: PONTOON BEACH SY Switch Type: EWSD LATA: St.Louis MO (520) Tandem: COVLILCQ50T 🔧 Explore Switch(CLLI: PNBHILSYDS0))
618-797-3XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	GRANITE CY	PNBHILSYDS0	N/A	Prefix Type: RBOC Switch Name: PONTOON BEACH SY Switch Type: EWSD LATA: St.Louis MO (520) Tandem: COVLILCQ50T 🔧 Explore Switch(CLLI: PNBHILSYDS0))
618-797-4XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	GRANITE CY	PNBHILSYDS0	N/A	Prefix Type: RBOC Switch Name: PONTOON BEACH SY Switch Type: EWSD LATA: St.Louis MO (520) Tandem: COVLILCQ50T 🔧 Explore Switch(CLLI: PNBHILSYDS0))
618-797-5XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	GRANITE CY	PNBHILSYDS0	N/A	Prefix Type: RBOC Switch Name: PONTOON BEACH SY Switch Type: EWSD LATA: St.Louis MO (520) Tandem: COVLILCQ50T 🔧 Explore Switch(CLLI: PNBHILSYDS0))
618-797-6XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	GRANITE CY	PNBHILSYDS0	N/A	Prefix Type: RBOC Switch Name: PONTOON BEACH SY Switch Type: EWSD LATA: St.Louis MO (520) Tandem: COVLILCQ50T 🔧 Explore Switch(CLLI: PNBHILSYDS0))
618-797-7XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	GRANITE CY	PNBHILSYDS0	N/A	Prefix Type: RBOC Switch Name: PONTOON BEACH SY Switch Type: EWSD LATA: St.Louis MO (520) Tandem: COVLILCQ50T 🔧 Explore Switch(CLLI: PNBHILSYDS0))
618-797-9XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	GRANITE CY	PNBHILSYDS0	N/A	Prefix Type: RBOC Switch Name: PONTOON BEACH SY Switch Type: EWSD LATA: St.Louis MO (520) Tandem: COVLILCQ50T 🔧 Explore Switch(CLLI: PNBHILSYDS0))
618-798	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	GRANITE CY	GRCYILTADS0	00/00/0000	Prefix Type: RBOC Switch Name: GRANITE CITY TRI Switch Type: EWSD LATA: St.Louis MO (520) Tandem: COVLILCQ50T 🔧 Explore Switch(CLLI: GRCYILTADS0))
618-798 is split into 1,000-number blocks - detail below
618-798-2XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	GRANITE CY	GRCYILTADS0	N/A	Prefix Type: RBOC Switch Name: GRANITE CITY TRI Switch Type: EWSD LATA: St.Louis MO (520) Tandem: COVLILCQ50T 🔧 Explore Switch(CLLI: GRCYILTADS0))
618-798-3XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	GRANITE CY	GRCYILTADS0	N/A	Prefix Type: RBOC Switch Name: GRANITE CITY TRI Switch Type: EWSD LATA: St.Louis MO (520) Tandem: COVLILCQ50T 🔧 Explore Switch(CLLI: GRCYILTADS0))
618-798-4XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	GRANITE CY	GRCYILTADS0	N/A	Prefix Type: RBOC Switch Name: GRANITE CITY TRI Switch Type: EWSD LATA: St.Louis MO (520) Tandem: COVLILCQ50T 🔧 Explore Switch(CLLI: GRCYILTADS0))
618-798-5XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	GRANITE CY	GRCYILTADS0	N/A	Prefix Type: RBOC Switch Name: GRANITE CITY TRI Switch Type: EWSD LATA: St.Louis MO (520) Tandem: COVLILCQ50T 🔧 Explore Switch(CLLI: GRCYILTADS0))
618-798-6XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	GRANITE CY	GRCYILTADS0	N/A	Prefix Type: RBOC Switch Name: GRANITE CITY TRI Switch Type: EWSD LATA: St.Louis MO (520) Tandem: COVLILCQ50T 🔧 Explore Switch(CLLI: GRCYILTADS0))
618-798-7XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	GRANITE CY	GRCYILTADS0	N/A	Prefix Type: RBOC Switch Name: GRANITE CITY TRI Switch Type: EWSD LATA: St.Louis MO (520) Tandem: COVLILCQ50T 🔧 Explore Switch(CLLI: GRCYILTADS0))
618-798-8XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	GRANITE CY	GRCYILTADS0	N/A	Prefix Type: RBOC Switch Name: GRANITE CITY TRI Switch Type: EWSD LATA: St.Louis MO (520) Tandem: COVLILCQ50T 🔧 Explore Switch(CLLI: GRCYILTADS0))
618-798-9XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	GRANITE CY	GRCYILTADS0	N/A	Prefix Type: RBOC Switch Name: GRANITE CITY TRI Switch Type: EWSD LATA: St.Louis MO (520) Tandem: COVLILCQ50T 🔧 Explore Switch(CLLI: GRCYILTADS0))
618-822	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	KELL	KELLILKLRS0	00/00/0000	Prefix Type: RBOC Switch Name: KELL DIX Switch Type: N/A LATA: St.Louis MO (520) Tandem: CENLILCE51T 🔧 Explore Switch(CLLI: KELLILKLRS0))
618-822 is split into 1,000-number blocks - detail below
618-822-6XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	KELL	KELLILKLRS0	N/A	Prefix Type: RBOC Switch Name: KELL DIX Switch Type: N/A LATA: St.Louis MO (520) Tandem: CENLILCE51T 🔧 Explore Switch(CLLI: KELLILKLRS0))
618-825	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	BELLEVILLE	BLVLILADDS0	00/00/0000	Prefix Type: RBOC Switch Name: BELLEVILLE ADAMS Switch Type: DMS100 LATA: St.Louis MO (520) Tandem: COVLILCQ50T 🔧 Explore Switch(CLLI: BLVLILADDS0))
618-825 is split into 1,000-number blocks - detail below
618-825-0XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	BELLEVILLE	BLVLILADDS0	N/A	Prefix Type: RBOC Switch Name: BELLEVILLE ADAMS Switch Type: DMS100 LATA: St.Louis MO (520) Tandem: COVLILCQ50T 🔧 Explore Switch(CLLI: BLVLILADDS0))
618-825-2XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	BELLEVILLE	BLVLILADDS0	N/A	Prefix Type: RBOC Switch Name: BELLEVILLE ADAMS Switch Type: DMS100 LATA: St.Louis MO (520) Tandem: COVLILCQ50T 🔧 Explore Switch(CLLI: BLVLILADDS0))
618-825-3XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	BELLEVILLE	BLVLILADDS0	N/A	Prefix Type: RBOC Switch Name: BELLEVILLE ADAMS Switch Type: DMS100 LATA: St.Louis MO (520) Tandem: COVLILCQ50T 🔧 Explore Switch(CLLI: BLVLILADDS0))
618-825-4XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	BELLEVILLE	BLVLILADDS0	N/A	Prefix Type: RBOC Switch Name: BELLEVILLE ADAMS Switch Type: DMS100 LATA: St.Louis MO (520) Tandem: COVLILCQ50T 🔧 Explore Switch(CLLI: BLVLILADDS0))
618-825-5XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	BELLEVILLE	BLVLILADDS0	N/A	Prefix Type: RBOC Switch Name: BELLEVILLE ADAMS Switch Type: DMS100 LATA: St.Louis MO (520) Tandem: COVLILCQ50T 🔧 Explore Switch(CLLI: BLVLILADDS0))
618-825-6XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	BELLEVILLE	BLVLILADDS0	N/A	Prefix Type: RBOC Switch Name: BELLEVILLE ADAMS Switch Type: DMS100 LATA: St.Louis MO (520) Tandem: COVLILCQ50T 🔧 Explore Switch(CLLI: BLVLILADDS0))
618-825-7XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	BELLEVILLE	BLVLILADDS0	N/A	Prefix Type: RBOC Switch Name: BELLEVILLE ADAMS Switch Type: DMS100 LATA: St.Louis MO (520) Tandem: COVLILCQ50T 🔧 Explore Switch(CLLI: BLVLILADDS0))
618-874	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	E ST LOUIS	ESLSILBRDS0	00/00/0000	Prefix Type: RBOC Switch Name: EAST ST LOUIS Switch Type: EWSD LATA: St.Louis MO (520) Tandem: COVLILCQ50T 🔧 Explore Switch(CLLI: ESLSILBRDS0))
618-874 is split into 1,000-number blocks - detail below
618-874-0XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	E ST LOUIS	ESLSILBRDS0	N/A	Prefix Type: RBOC Switch Name: EAST ST LOUIS Switch Type: EWSD LATA: St.Louis MO (520) Tandem: COVLILCQ50T 🔧 Explore Switch(CLLI: ESLSILBRDS0))
618-874-1XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	E ST LOUIS	ESLSILBRDS0	N/A	Prefix Type: RBOC Switch Name: EAST ST LOUIS Switch Type: EWSD LATA: St.Louis MO (520) Tandem: COVLILCQ50T 🔧 Explore Switch(CLLI: ESLSILBRDS0))
618-874-2XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	E ST LOUIS	ESLSILBRDS0	N/A	Prefix Type: RBOC Switch Name: EAST ST LOUIS Switch Type: EWSD LATA: St.Louis MO (520) Tandem: COVLILCQ50T 🔧 Explore Switch(CLLI: ESLSILBRDS0))
618-874-3XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	E ST LOUIS	ESLSILBRDS0	N/A	Prefix Type: RBOC Switch Name: EAST ST LOUIS Switch Type: EWSD LATA: St.Louis MO (520) Tandem: COVLILCQ50T 🔧 Explore Switch(CLLI: ESLSILBRDS0))
618-874-6XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	E ST LOUIS	ESLSILBRDS0	N/A	Prefix Type: RBOC Switch Name: EAST ST LOUIS Switch Type: EWSD LATA: St.Louis MO (520) Tandem: COVLILCQ50T 🔧 Explore Switch(CLLI: ESLSILBRDS0))
618-874-7XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	E ST LOUIS	ESLSILBRDS0	N/A	Prefix Type: RBOC Switch Name: EAST ST LOUIS Switch Type: EWSD LATA: St.Louis MO (520) Tandem: COVLILCQ50T 🔧 Explore Switch(CLLI: ESLSILBRDS0))
618-874-8XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	E ST LOUIS	ESLSILBRDS0	N/A	Prefix Type: RBOC Switch Name: EAST ST LOUIS Switch Type: EWSD LATA: St.Louis MO (520) Tandem: COVLILCQ50T 🔧 Explore Switch(CLLI: ESLSILBRDS0))
618-875	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	E ST LOUIS	ESLSILBRDS0	00/00/0000	Prefix Type: RBOC Switch Name: EAST ST LOUIS Switch Type: EWSD LATA: St.Louis MO (520) Tandem: COVLILCQ50T 🔧 Explore Switch(CLLI: ESLSILBRDS0))
618-875 is split into 1,000-number blocks - detail below
618-875-0XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	E ST LOUIS	ESLSILBRDS0	N/A	Prefix Type: RBOC Switch Name: EAST ST LOUIS Switch Type: EWSD LATA: St.Louis MO (520) Tandem: COVLILCQ50T 🔧 Explore Switch(CLLI: ESLSILBRDS0))
618-875-2XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	E ST LOUIS	ESLSILBRDS0	N/A	Prefix Type: RBOC Switch Name: EAST ST LOUIS Switch Type: EWSD LATA: St.Louis MO (520) Tandem: COVLILCQ50T 🔧 Explore Switch(CLLI: ESLSILBRDS0))
618-875-3XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	E ST LOUIS	ESLSILBRDS0	N/A	Prefix Type: RBOC Switch Name: EAST ST LOUIS Switch Type: EWSD LATA: St.Louis MO (520) Tandem: COVLILCQ50T 🔧 Explore Switch(CLLI: ESLSILBRDS0))
618-875-5XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	E ST LOUIS	ESLSILBRDS0	N/A	Prefix Type: RBOC Switch Name: EAST ST LOUIS Switch Type: EWSD LATA: St.Louis MO (520) Tandem: COVLILCQ50T 🔧 Explore Switch(CLLI: ESLSILBRDS0))
618-875-7XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	E ST LOUIS	ESLSILBRDS0	N/A	Prefix Type: RBOC Switch Name: EAST ST LOUIS Switch Type: EWSD LATA: St.Louis MO (520) Tandem: COVLILCQ50T 🔧 Explore Switch(CLLI: ESLSILBRDS0))
618-875-8XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	E ST LOUIS	ESLSILBRDS0	N/A	Prefix Type: RBOC Switch Name: EAST ST LOUIS Switch Type: EWSD LATA: St.Louis MO (520) Tandem: COVLILCQ50T 🔧 Explore Switch(CLLI: ESLSILBRDS0))
618-875-9XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	E ST LOUIS	ESLSILBRDS0	N/A	Prefix Type: RBOC Switch Name: EAST ST LOUIS Switch Type: EWSD LATA: St.Louis MO (520) Tandem: COVLILCQ50T 🔧 Explore Switch(CLLI: ESLSILBRDS0))
618-876	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	GRANITE CY	GRCYILTADS0	00/00/0000	Prefix Type: RBOC Switch Name: GRANITE CITY TRI Switch Type: EWSD LATA: St.Louis MO (520) Tandem: COVLILCQ50T 🔧 Explore Switch(CLLI: GRCYILTADS0))
618-876 is split into 1,000-number blocks - detail below
618-876-0XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	GRANITE CY	GRCYILTADS0	N/A	Prefix Type: RBOC Switch Name: GRANITE CITY TRI Switch Type: EWSD LATA: St.Louis MO (520) Tandem: COVLILCQ50T 🔧 Explore Switch(CLLI: GRCYILTADS0))
618-876-1XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	GRANITE CY	GRCYILTADS0	N/A	Prefix Type: RBOC Switch Name: GRANITE CITY TRI Switch Type: EWSD LATA: St.Louis MO (520) Tandem: COVLILCQ50T 🔧 Explore Switch(CLLI: GRCYILTADS0))
618-876-2XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	GRANITE CY	GRCYILTADS0	N/A	Prefix Type: RBOC Switch Name: GRANITE CITY TRI Switch Type: EWSD LATA: St.Louis MO (520) Tandem: COVLILCQ50T 🔧 Explore Switch(CLLI: GRCYILTADS0))
618-876-3XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	GRANITE CY	GRCYILTADS0	N/A	Prefix Type: RBOC Switch Name: GRANITE CITY TRI Switch Type: EWSD LATA: St.Louis MO (520) Tandem: COVLILCQ50T 🔧 Explore Switch(CLLI: GRCYILTADS0))
618-876-4XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	GRANITE CY	GRCYILTADS0	N/A	Prefix Type: RBOC Switch Name: GRANITE CITY TRI Switch Type: EWSD LATA: St.Louis MO (520) Tandem: COVLILCQ50T 🔧 Explore Switch(CLLI: GRCYILTADS0))
618-876-5XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	GRANITE CY	GRCYILTADS0	N/A	Prefix Type: RBOC Switch Name: GRANITE CITY TRI Switch Type: EWSD LATA: St.Louis MO (520) Tandem: COVLILCQ50T 🔧 Explore Switch(CLLI: GRCYILTADS0))
618-876-6XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	GRANITE CY	GRCYILTADS0	N/A	Prefix Type: RBOC Switch Name: GRANITE CITY TRI Switch Type: EWSD LATA: St.Louis MO (520) Tandem: COVLILCQ50T 🔧 Explore Switch(CLLI: GRCYILTADS0))
618-876-7XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	GRANITE CY	GRCYILTADS0	N/A	Prefix Type: RBOC Switch Name: GRANITE CITY TRI Switch Type: EWSD LATA: St.Louis MO (520) Tandem: COVLILCQ50T 🔧 Explore Switch(CLLI: GRCYILTADS0))
618-876-8XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	GRANITE CY	GRCYILTADS0	N/A	Prefix Type: RBOC Switch Name: GRANITE CITY TRI Switch Type: EWSD LATA: St.Louis MO (520) Tandem: COVLILCQ50T 🔧 Explore Switch(CLLI: GRCYILTADS0))
618-877	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	GRANITE CY	GRCYILTADS0	00/00/0000	Prefix Type: RBOC Switch Name: GRANITE CITY TRI Switch Type: EWSD LATA: St.Louis MO (520) Tandem: COVLILCQ50T 🔧 Explore Switch(CLLI: GRCYILTADS0))
618-887	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	MARINE	MRINILMJRS0	00/00/0000	Prefix Type: RBOC Switch Name: MARINE Switch Type: N/A LATA: St.Louis MO (520) Tandem: COVLILCQ50T 🔧 Explore Switch(CLLI: MRINILMJRS0))
618-887 is split into 1,000-number blocks - detail below
618-887-4XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	MARINE	MRINILMJRS0	N/A	Prefix Type: RBOC Switch Name: MARINE Switch Type: N/A LATA: St.Louis MO (520) Tandem: COVLILCQ50T 🔧 Explore Switch(CLLI: MRINILMJRS0))
618-931	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	GRANITE CY	PNBHILSYDS0	00/00/0000	Prefix Type: RBOC Switch Name: PONTOON BEACH SY Switch Type: EWSD LATA: St.Louis MO (520) Tandem: COVLILCQ50T 🔧 Explore Switch(CLLI: PNBHILSYDS0))
630-208	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	GENEVA	GENVILGNDS0	00/00/0000	Prefix Type: RBOC Switch Name: GENEVA Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILNE20T 🔧 Explore Switch(CLLI: GENVILGNDS0))
630-213	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	BARTLETT	BRTLILBTDS0	00/00/0000	Prefix Type: RBOC Switch Name: BARTLETT Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILNE20T 🔧 Explore Switch(CLLI: BRTLILBTDS0))
630-218	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	HINSDALE	OKBRILOADS0	00/00/0000	Prefix Type: RBOC Switch Name: OAKBROOK Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: LBRDILLM20T 🔧 Explore Switch(CLLI: OKBRILOADS0))
630-221	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	WHEATON	WHTNILWHRS0	00/00/0000	Prefix Type: RBOC Switch Name: WHEATON RS0 Switch Type: N/A LATA: Chicago IL METRO (358) Tandem: LBRDILLM20T 🔧 Explore Switch(CLLI: WHTNILWHRS0))
630-224	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	NAPERVILLE	NPVLILBJRS0	00/00/0000	Prefix Type: RBOC Switch Name: NAPERVL BJ BELL LABS Switch Type: N/A LATA: Chicago IL METRO (358) Tandem: LBRDILLM20T 🔧 Explore Switch(CLLI: NPVLILBJRS0))
630-226	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	LEMONT	BGBKILBKDS0	00/00/0000	Prefix Type: RBOC Switch Name: BOLINGBROOK Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: LBRDILLM20T 🔧 Explore Switch(CLLI: BGBKILBKDS0))
630-227	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	BENSENVL	BNSVILBVDS0	00/00/0000	Prefix Type: RBOC Switch Name: BENSENVILLE Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: NCHCILNC20T 🔧 Explore Switch(CLLI: BNSVILBVDS0))
630-227 is split into 1,000-number blocks - detail below
630-227-0XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	BENSENVL	BNSVILBVDS0	N/A	Prefix Type: RBOC Switch Name: BENSENVILLE Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: NCHCILNC20T 🔧 Explore Switch(CLLI: BNSVILBVDS0))
630-227-1XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	BENSENVL	BNSVILBVDS0	N/A	Prefix Type: RBOC Switch Name: BENSENVILLE Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: NCHCILNC20T 🔧 Explore Switch(CLLI: BNSVILBVDS0))
630-227-2XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	BENSENVL	BNSVILBVDS0	N/A	Prefix Type: RBOC Switch Name: BENSENVILLE Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: NCHCILNC20T 🔧 Explore Switch(CLLI: BNSVILBVDS0))
630-227-3XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	BENSENVL	BNSVILBVDS0	N/A	Prefix Type: RBOC Switch Name: BENSENVILLE Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: NCHCILNC20T 🔧 Explore Switch(CLLI: BNSVILBVDS0))
630-227-4XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	BENSENVL	BNSVILBVDS0	N/A	Prefix Type: RBOC Switch Name: BENSENVILLE Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: NCHCILNC20T 🔧 Explore Switch(CLLI: BNSVILBVDS0))
630-227-5XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	BENSENVL	BNSVILBVDS0	N/A	Prefix Type: RBOC Switch Name: BENSENVILLE Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: NCHCILNC20T 🔧 Explore Switch(CLLI: BNSVILBVDS0))
630-227-6XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	BENSENVL	BNSVILBVDS0	N/A	Prefix Type: RBOC Switch Name: BENSENVILLE Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: NCHCILNC20T 🔧 Explore Switch(CLLI: BNSVILBVDS0))
630-227-8XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	BENSENVL	BNSVILBVDS0	N/A	Prefix Type: RBOC Switch Name: BENSENVILLE Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: NCHCILNC20T 🔧 Explore Switch(CLLI: BNSVILBVDS0))
630-227-9XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	BENSENVL	BNSVILBVDS0	N/A	Prefix Type: RBOC Switch Name: BENSENVILLE Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: NCHCILNC20T 🔧 Explore Switch(CLLI: BNSVILBVDS0))
630-230	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	HINSDALE	HNDLILHIDS0	00/00/0000	Prefix Type: RBOC Switch Name: HINSDALE Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: LBRDILLM20T 🔧 Explore Switch(CLLI: HNDLILHIDS0))
630-230 is split into 1,000-number blocks - detail below
630-230-0XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	HINSDALE	HNDLILHIDS0	N/A	Prefix Type: RBOC Switch Name: HINSDALE Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: LBRDILLM20T 🔧 Explore Switch(CLLI: HNDLILHIDS0))
630-230-9XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	HINSDALE	HNDLILHIDS0	N/A	Prefix Type: RBOC Switch Name: HINSDALE Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: LBRDILLM20T 🔧 Explore Switch(CLLI: HNDLILHIDS0))
630-231	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	W CHICAGO	WCHCILWCDS0	00/00/0000	Prefix Type: RBOC Switch Name: WEST CHICAGO Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: NCHCILNC20T 🔧 Explore Switch(CLLI: WCHCILWCDS0))
630-232	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	GENEVA	GENVILGNDS0	00/00/0000	Prefix Type: RBOC Switch Name: GENEVA Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILNE20T 🔧 Explore Switch(CLLI: GENVILGNDS0))
630-236	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	AURORA	AURRILAEDS0	00/00/0000	Prefix Type: RBOC Switch Name: AURORA EAST DS0 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: LBRDILLM20T 🔧 Explore Switch(CLLI: AURRILAEDS0))
630-238	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	BENSENVL	BNSVILBVDS0	00/00/0000	Prefix Type: RBOC Switch Name: BENSENVILLE Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: NCHCILNC20T 🔧 Explore Switch(CLLI: BNSVILBVDS0))
630-241	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	DOWNERSGRV	DWGVILDGDS0	00/00/0000	Prefix Type: RBOC Switch Name: DOWNERS GROVE DS0 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: LBRDILLM20T 🔧 Explore Switch(CLLI: DWGVILDGDS0))
630-243	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	LEMONT	LEMTILLEDS0	00/00/0000	Prefix Type: RBOC Switch Name: LEMONT MAIN Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: LBRDILLM20T 🔧 Explore Switch(CLLI: LEMTILLEDS0))
630-243 is split into 1,000-number blocks - detail below
630-243-0XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	LEMONT	LEMTILLEDS0	N/A	Prefix Type: RBOC Switch Name: LEMONT MAIN Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: LBRDILLM20T 🔧 Explore Switch(CLLI: LEMTILLEDS0))
630-243-1XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	LEMONT	LEMTILLEDS0	N/A	Prefix Type: RBOC Switch Name: LEMONT MAIN Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: LBRDILLM20T 🔧 Explore Switch(CLLI: LEMTILLEDS0))
630-243-2XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	LEMONT	LEMTILLEDS0	N/A	Prefix Type: RBOC Switch Name: LEMONT MAIN Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: LBRDILLM20T 🔧 Explore Switch(CLLI: LEMTILLEDS0))
630-243-3XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	LEMONT	LEMTILLEDS0	N/A	Prefix Type: RBOC Switch Name: LEMONT MAIN Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: LBRDILLM20T 🔧 Explore Switch(CLLI: LEMTILLEDS0))
630-243-6XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	LEMONT	LEMTILLEDS0	N/A	Prefix Type: RBOC Switch Name: LEMONT MAIN Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: LBRDILLM20T 🔧 Explore Switch(CLLI: LEMTILLEDS0))
630-243-7XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	LEMONT	LEMTILLEDS0	N/A	Prefix Type: RBOC Switch Name: LEMONT MAIN Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: LBRDILLM20T 🔧 Explore Switch(CLLI: LEMTILLEDS0))
630-243-8XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	LEMONT	LEMTILLEDS0	N/A	Prefix Type: RBOC Switch Name: LEMONT MAIN Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: LBRDILLM20T 🔧 Explore Switch(CLLI: LEMTILLEDS0))
630-243-9XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	LEMONT	LEMTILLEDS0	N/A	Prefix Type: RBOC Switch Name: LEMONT MAIN Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: LBRDILLM20T 🔧 Explore Switch(CLLI: LEMTILLEDS0))
630-245	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	NAPERVILLE	NPVLILNEDS0	00/00/0000	Prefix Type: RBOC Switch Name: NAPERVILLE NE Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: LBRDILLM20T 🔧 Explore Switch(CLLI: NPVLILNEDS0))
630-245 is split into 1,000-number blocks - detail below
630-245-0XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	NAPERVILLE	NPVLILNEDS0	N/A	Prefix Type: RBOC Switch Name: NAPERVILLE NE Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: LBRDILLM20T 🔧 Explore Switch(CLLI: NPVLILNEDS0))
630-245-1XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	NAPERVILLE	NPVLILNEDS0	N/A	Prefix Type: RBOC Switch Name: NAPERVILLE NE Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: LBRDILLM20T 🔧 Explore Switch(CLLI: NPVLILNEDS0))
630-245-2XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	NAPERVILLE	NPVLILNEDS0	N/A	Prefix Type: RBOC Switch Name: NAPERVILLE NE Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: LBRDILLM20T 🔧 Explore Switch(CLLI: NPVLILNEDS0))
630-245-4XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	NAPERVILLE	NPVLILNEDS0	N/A	Prefix Type: RBOC Switch Name: NAPERVILLE NE Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: LBRDILLM20T 🔧 Explore Switch(CLLI: NPVLILNEDS0))
630-245-5XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	NAPERVILLE	NPVLILNEDS0	N/A	Prefix Type: RBOC Switch Name: NAPERVILLE NE Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: LBRDILLM20T 🔧 Explore Switch(CLLI: NPVLILNEDS0))
630-245-6XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	NAPERVILLE	NPVLILNEDS0	N/A	Prefix Type: RBOC Switch Name: NAPERVILLE NE Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: LBRDILLM20T 🔧 Explore Switch(CLLI: NPVLILNEDS0))
630-245-7XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	NAPERVILLE	NPVLILNEDS0	N/A	Prefix Type: RBOC Switch Name: NAPERVILLE NE Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: LBRDILLM20T 🔧 Explore Switch(CLLI: NPVLILNEDS0))
630-245-8XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	NAPERVILLE	NPVLILNEDS0	N/A	Prefix Type: RBOC Switch Name: NAPERVILLE NE Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: LBRDILLM20T 🔧 Explore Switch(CLLI: NPVLILNEDS0))
630-245-9XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	NAPERVILLE	NPVLILNEDS0	N/A	Prefix Type: RBOC Switch Name: NAPERVILLE NE Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: LBRDILLM20T 🔧 Explore Switch(CLLI: NPVLILNEDS0))
630-250	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	ITASCA	BNSVILBVDS0	00/00/0000	Prefix Type: RBOC Switch Name: BENSENVILLE Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: NCHCILNC20T 🔧 Explore Switch(CLLI: BNSVILBVDS0))
630-252	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	LEMONT	LEMTILLNDS0	00/00/0000	Prefix Type: RBOC Switch Name: LEMONT NORTH Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: LBRDILLM20T 🔧 Explore Switch(CLLI: LEMTILLNDS0))
630-256	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	AURORA	AURRILARDS0	09/30/2009	Prefix Type: RBOC Switch Name: AURORA MAIN Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: LBRDILLM20T 🔧 Explore Switch(CLLI: AURRILARDS0))
630-256 is split into 1,000-number blocks - detail below
630-256-2XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	AURORA	AURRILARDS0	10/01/2009	Prefix Type: RBOC Switch Name: AURORA MAIN Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: LBRDILLM20T 🔧 Explore Switch(CLLI: AURRILARDS0))
630-256-3XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	AURORA	AURRILARDS0	10/01/2009	Prefix Type: RBOC Switch Name: AURORA MAIN Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: LBRDILLM20T 🔧 Explore Switch(CLLI: AURRILARDS0))
630-256-4XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	AURORA	AURRILARDS0	10/01/2009	Prefix Type: RBOC Switch Name: AURORA MAIN Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: LBRDILLM20T 🔧 Explore Switch(CLLI: AURRILARDS0))
630-256-5XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	AURORA	AURRILARDS0	10/01/2009	Prefix Type: RBOC Switch Name: AURORA MAIN Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: LBRDILLM20T 🔧 Explore Switch(CLLI: AURRILARDS0))
630-256-6XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	AURORA	AURRILARDS0	10/01/2009	Prefix Type: RBOC Switch Name: AURORA MAIN Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: LBRDILLM20T 🔧 Explore Switch(CLLI: AURRILARDS0))
630-257	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	LEMONT	LEMTILLEDS0	00/00/0000	Prefix Type: RBOC Switch Name: LEMONT MAIN Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: LBRDILLM20T 🔧 Explore Switch(CLLI: LEMTILLEDS0))
630-259 is split into 1,000-number blocks - detail below
630-259-7XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	ROSELLE	RSLLILRZDS0	08/30/2000	Prefix Type: RBOC Switch Name: ROSELLE Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILNE20T 🔧 Explore Switch(CLLI: RSLLILRZDS0))
630-260	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	WHEATON	WHTNILWHDS0	00/00/0000	Prefix Type: RBOC Switch Name: WHEATON DS0 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILNE20T 🔧 Explore Switch(CLLI: WHTNILWHDS0))
630-261	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	LOMBARD	LBRDILLMDS0	00/00/0000	Prefix Type: RBOC Switch Name: LOMBARD MAIN DS0 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: LBRDILLM20T 🔧 Explore Switch(CLLI: LBRDILLMDS0))
630-261 is split into 1,000-number blocks - detail below
630-261-0XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	LOMBARD	LBRDILLMDS0	N/A	Prefix Type: RBOC Switch Name: LOMBARD MAIN DS0 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: LBRDILLM20T 🔧 Explore Switch(CLLI: LBRDILLMDS0))
630-261-1XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	LOMBARD	LBRDILLMDS0	N/A	Prefix Type: RBOC Switch Name: LOMBARD MAIN DS0 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: LBRDILLM20T 🔧 Explore Switch(CLLI: LBRDILLMDS0))
630-261-2XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	LOMBARD	LBRDILLMDS0	N/A	Prefix Type: RBOC Switch Name: LOMBARD MAIN DS0 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: LBRDILLM20T 🔧 Explore Switch(CLLI: LBRDILLMDS0))
630-261-3XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	LOMBARD	LBRDILLMDS0	N/A	Prefix Type: RBOC Switch Name: LOMBARD MAIN DS0 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: LBRDILLM20T 🔧 Explore Switch(CLLI: LBRDILLMDS0))
630-261-4XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	LOMBARD	LBRDILLMDS0	N/A	Prefix Type: RBOC Switch Name: LOMBARD MAIN DS0 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: LBRDILLM20T 🔧 Explore Switch(CLLI: LBRDILLMDS0))
630-261-7XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	LOMBARD	LBRDILLMDS0	N/A	Prefix Type: RBOC Switch Name: LOMBARD MAIN DS0 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: LBRDILLM20T 🔧 Explore Switch(CLLI: LBRDILLMDS0))
630-261-8XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	LOMBARD	LBRDILLMDS0	N/A	Prefix Type: RBOC Switch Name: LOMBARD MAIN DS0 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: LBRDILLM20T 🔧 Explore Switch(CLLI: LBRDILLMDS0))
630-261-9XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	LOMBARD	LBRDILLMDS0	N/A	Prefix Type: RBOC Switch Name: LOMBARD MAIN DS0 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: LBRDILLM20T 🔧 Explore Switch(CLLI: LBRDILLMDS0))
630-262	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	GENEVA	GENVILGNDS0	00/00/0000	Prefix Type: RBOC Switch Name: GENEVA Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILNE20T 🔧 Explore Switch(CLLI: GENVILGNDS0))
630-264	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	AURORA	AURRILARDS0	00/00/0000	Prefix Type: RBOC Switch Name: AURORA MAIN Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: LBRDILLM20T 🔧 Explore Switch(CLLI: AURRILARDS0))
630-268	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	LOMBARD	LBRDILLMDS0	00/00/0000	Prefix Type: RBOC Switch Name: LOMBARD MAIN DS0 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: LBRDILLM20T 🔧 Explore Switch(CLLI: LBRDILLMDS0))
630-271	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	DOWNERSGRV	DWGVILDGDS0	00/00/0000	Prefix Type: RBOC Switch Name: DOWNERS GROVE DS0 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: LBRDILLM20T 🔧 Explore Switch(CLLI: DWGVILDGDS0))
630-271 is split into 1,000-number blocks - detail below
630-271-0XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	DOWNERSGRV	DWGVILDGDS0	N/A	Prefix Type: RBOC Switch Name: DOWNERS GROVE DS0 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: LBRDILLM20T 🔧 Explore Switch(CLLI: DWGVILDGDS0))
630-271-1XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	DOWNERSGRV	DWGVILDGDS0	N/A	Prefix Type: RBOC Switch Name: DOWNERS GROVE DS0 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: LBRDILLM20T 🔧 Explore Switch(CLLI: DWGVILDGDS0))
630-271-2XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	DOWNERSGRV	DWGVILDGDS0	N/A	Prefix Type: RBOC Switch Name: DOWNERS GROVE DS0 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: LBRDILLM20T 🔧 Explore Switch(CLLI: DWGVILDGDS0))
630-271-3XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	DOWNERSGRV	DWGVILDGDS0	N/A	Prefix Type: RBOC Switch Name: DOWNERS GROVE DS0 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: LBRDILLM20T 🔧 Explore Switch(CLLI: DWGVILDGDS0))
630-271-4XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	DOWNERSGRV	DWGVILDGDS0	N/A	Prefix Type: RBOC Switch Name: DOWNERS GROVE DS0 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: LBRDILLM20T 🔧 Explore Switch(CLLI: DWGVILDGDS0))
630-271-6XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	DOWNERSGRV	DWGVILDGDS0	N/A	Prefix Type: RBOC Switch Name: DOWNERS GROVE DS0 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: LBRDILLM20T 🔧 Explore Switch(CLLI: DWGVILDGDS0))
630-271-7XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	DOWNERSGRV	DWGVILDGDS0	N/A	Prefix Type: RBOC Switch Name: DOWNERS GROVE DS0 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: LBRDILLM20T 🔧 Explore Switch(CLLI: DWGVILDGDS0))
630-271-8XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	DOWNERSGRV	DWGVILDGDS0	N/A	Prefix Type: RBOC Switch Name: DOWNERS GROVE DS0 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: LBRDILLM20T 🔧 Explore Switch(CLLI: DWGVILDGDS0))
630-271-9XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	DOWNERSGRV	DWGVILDGDS0	N/A	Prefix Type: RBOC Switch Name: DOWNERS GROVE DS0 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: LBRDILLM20T 🔧 Explore Switch(CLLI: DWGVILDGDS0))
630-275	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	DOWNERSGRV	DWGVILDGDS0	00/00/0000	Prefix Type: RBOC Switch Name: DOWNERS GROVE DS0 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: LBRDILLM20T 🔧 Explore Switch(CLLI: DWGVILDGDS0))
630-279	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	ELMHURST	EMHRILETDS0	00/00/0000	Prefix Type: RBOC Switch Name: ELMHURST Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: NCHCILNC20T 🔧 Explore Switch(CLLI: EMHRILETDS0))
630-285	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	ITASCA	BNSVILBVDS0	00/00/0000	Prefix Type: RBOC Switch Name: BENSENVILLE Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: NCHCILNC20T 🔧 Explore Switch(CLLI: BNSVILBVDS0))
630-286 is split into 1,000-number blocks - detail below
630-286-4XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	HINSDALE	HNDLILHIDS0	04/19/2001	Prefix Type: RBOC Switch Name: HINSDALE Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: LBRDILLM20T 🔧 Explore Switch(CLLI: HNDLILHIDS0))
630-286-5XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	HINSDALE	HNDLILHIDS0	04/19/2001	Prefix Type: RBOC Switch Name: HINSDALE Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: LBRDILLM20T 🔧 Explore Switch(CLLI: HNDLILHIDS0))
630-289	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	BARTLETT	BRTLILBTDS0	00/00/0000	Prefix Type: RBOC Switch Name: BARTLETT Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILNE20T 🔧 Explore Switch(CLLI: BRTLILBTDS0))
630-293	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	W CHICAGO	WCHCILWCDS0	00/00/0000	Prefix Type: RBOC Switch Name: WEST CHICAGO Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: NCHCILNC20T 🔧 Explore Switch(CLLI: WCHCILWCDS0))
630-295	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	ROSELLE	RSLLILRZDS0	00/00/0000	Prefix Type: RBOC Switch Name: ROSELLE Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILNE20T 🔧 Explore Switch(CLLI: RSLLILRZDS0))
630-301 is split into 1,000-number blocks - detail below
630-301-5XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	AURORA	AURRILARDS0	09/10/2002	Prefix Type: RBOC Switch Name: AURORA MAIN Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: LBRDILLM20T 🔧 Explore Switch(CLLI: AURRILARDS0))
630-301-6XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	AURORA	AURRILARDS0	09/10/2002	Prefix Type: RBOC Switch Name: AURORA MAIN Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: LBRDILLM20T 🔧 Explore Switch(CLLI: AURRILARDS0))
630-301-7XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	AURORA	AURRILARDS0	11/08/2001	Prefix Type: RBOC Switch Name: AURORA MAIN Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: LBRDILLM20T 🔧 Explore Switch(CLLI: AURRILARDS0))
630-305	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	NAPERVILLE	NPVLILNADS0	00/00/0000	Prefix Type: RBOC Switch Name: NAPERVILLE NA Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: LBRDILLM20T 🔧 Explore Switch(CLLI: NPVLILNADS0))
630-307	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	ROSELLE	RSLLILRZDS0	00/00/0000	Prefix Type: RBOC Switch Name: ROSELLE Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILNE20T 🔧 Explore Switch(CLLI: RSLLILRZDS0))
630-312	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	LEMONT	BGBKILBKDS0	02/15/2007	Prefix Type: RBOC Switch Name: BOLINGBROOK Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: LBRDILLM20T 🔧 Explore Switch(CLLI: BGBKILBKDS0))
630-312 is split into 1,000-number blocks - detail below
630-312-2XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	LEMONT	BGBKILBKDS0	02/16/2007	Prefix Type: RBOC Switch Name: BOLINGBROOK Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: LBRDILLM20T 🔧 Explore Switch(CLLI: BGBKILBKDS0))
630-312-3XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	LEMONT	BGBKILBKDS0	02/16/2007	Prefix Type: RBOC Switch Name: BOLINGBROOK Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: LBRDILLM20T 🔧 Explore Switch(CLLI: BGBKILBKDS0))
630-312-4XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	LEMONT	BGBKILBKDS0	02/16/2007	Prefix Type: RBOC Switch Name: BOLINGBROOK Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: LBRDILLM20T 🔧 Explore Switch(CLLI: BGBKILBKDS0))
630-312-5XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	LEMONT	BGBKILBKDS0	02/16/2007	Prefix Type: RBOC Switch Name: BOLINGBROOK Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: LBRDILLM20T 🔧 Explore Switch(CLLI: BGBKILBKDS0))
630-312-6XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	LEMONT	BGBKILBKDS0	02/16/2007	Prefix Type: RBOC Switch Name: BOLINGBROOK Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: LBRDILLM20T 🔧 Explore Switch(CLLI: BGBKILBKDS0))
630-312-7XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	LEMONT	BGBKILBKDS0	02/16/2007	Prefix Type: RBOC Switch Name: BOLINGBROOK Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: LBRDILLM20T 🔧 Explore Switch(CLLI: BGBKILBKDS0))
630-313 is split into 1,000-number blocks - detail below
630-313-7XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	GENEVA	GENVILGNDS0	05/06/2002	Prefix Type: RBOC Switch Name: GENEVA Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILNE20T 🔧 Explore Switch(CLLI: GENVILGNDS0))
630-314	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	ROSELLE	RSLLILRZDS0	00/00/0000	Prefix Type: RBOC Switch Name: ROSELLE Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILNE20T 🔧 Explore Switch(CLLI: RSLLILRZDS0))
630-321	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	HINSDALE	HNDLILHIDS0	00/00/0000	Prefix Type: RBOC Switch Name: HINSDALE Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: LBRDILLM20T 🔧 Explore Switch(CLLI: HNDLILHIDS0))
630-322	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	DOWNERSGRV	DWGVILDGDS0	00/00/0000	Prefix Type: RBOC Switch Name: DOWNERS GROVE DS0 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: LBRDILLM20T 🔧 Explore Switch(CLLI: DWGVILDGDS0))
630-323	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	HINSDALE	HNDLILHIDS0	00/00/0000	Prefix Type: RBOC Switch Name: HINSDALE Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: LBRDILLM20T 🔧 Explore Switch(CLLI: HNDLILHIDS0))
630-324 is split into 1,000-number blocks - detail below
630-324-3XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	DOWNERSGRV	DWGVILDGDS0	04/24/2000	Prefix Type: RBOC Switch Name: DOWNERS GROVE DS0 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: LBRDILLM20T 🔧 Explore Switch(CLLI: DWGVILDGDS0))
630-325	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	HINSDALE	HNDLILHIDS0	00/00/0000	Prefix Type: RBOC Switch Name: HINSDALE Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: LBRDILLM20T 🔧 Explore Switch(CLLI: HNDLILHIDS0))
630-345	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	GENEVA	GENVILGNDS0	00/00/0000	Prefix Type: RBOC Switch Name: GENEVA Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILNE20T 🔧 Explore Switch(CLLI: GENVILGNDS0))
630-345 is split into 1,000-number blocks - detail below
630-345-7XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	GENEVA	GENVILGNDS0	05/06/2002	Prefix Type: RBOC Switch Name: GENEVA Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILNE20T 🔧 Explore Switch(CLLI: GENVILGNDS0))
630-350	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	BENSENVL	BNSVILBVDS0	00/00/0000	Prefix Type: RBOC Switch Name: BENSENVILLE Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: NCHCILNC20T 🔧 Explore Switch(CLLI: BNSVILBVDS0))
630-350 is split into 1,000-number blocks - detail below
630-350-0XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	BENSENVL	BNSVILBVDS0	N/A	Prefix Type: RBOC Switch Name: BENSENVILLE Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: NCHCILNC20T 🔧 Explore Switch(CLLI: BNSVILBVDS0))
630-350-1XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	BENSENVL	BNSVILBVDS0	N/A	Prefix Type: RBOC Switch Name: BENSENVILLE Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: NCHCILNC20T 🔧 Explore Switch(CLLI: BNSVILBVDS0))
630-350-2XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	BENSENVL	BNSVILBVDS0	N/A	Prefix Type: RBOC Switch Name: BENSENVILLE Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: NCHCILNC20T 🔧 Explore Switch(CLLI: BNSVILBVDS0))
630-350-3XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	BENSENVL	BNSVILBVDS0	N/A	Prefix Type: RBOC Switch Name: BENSENVILLE Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: NCHCILNC20T 🔧 Explore Switch(CLLI: BNSVILBVDS0))
630-350-4XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	BENSENVL	BNSVILBVDS0	N/A	Prefix Type: RBOC Switch Name: BENSENVILLE Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: NCHCILNC20T 🔧 Explore Switch(CLLI: BNSVILBVDS0))
630-350-5XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	BENSENVL	BNSVILBVDS0	N/A	Prefix Type: RBOC Switch Name: BENSENVILLE Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: NCHCILNC20T 🔧 Explore Switch(CLLI: BNSVILBVDS0))
630-350-7XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	BENSENVL	BNSVILBVDS0	N/A	Prefix Type: RBOC Switch Name: BENSENVILLE Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: NCHCILNC20T 🔧 Explore Switch(CLLI: BNSVILBVDS0))
630-350-8XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	BENSENVL	BNSVILBVDS0	N/A	Prefix Type: RBOC Switch Name: BENSENVILLE Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: NCHCILNC20T 🔧 Explore Switch(CLLI: BNSVILBVDS0))
630-350-9XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	BENSENVL	BNSVILBVDS0	N/A	Prefix Type: RBOC Switch Name: BENSENVILLE Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: NCHCILNC20T 🔧 Explore Switch(CLLI: BNSVILBVDS0))
630-351	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	ROSELLE	RSLLILRZDS0	00/00/0000	Prefix Type: RBOC Switch Name: ROSELLE Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILNE20T 🔧 Explore Switch(CLLI: RSLLILRZDS0))
630-353	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	DOWNERSGRV	DWGVILDGDS1	00/00/0000	Prefix Type: RBOC Switch Name: DOWNERS GROVE DS1 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: LBRDILLM20T 🔧 Explore Switch(CLLI: DWGVILDGDS1))
630-355	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	NAPERVILLE	NPVLILNADS0	00/00/0000	Prefix Type: RBOC Switch Name: NAPERVILLE NA Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: LBRDILLM20T 🔧 Explore Switch(CLLI: NPVLILNADS0))
630-357	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	NAPERVILLE	NPVLILNADS0	00/00/0000	Prefix Type: RBOC Switch Name: NAPERVILLE NA Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: LBRDILLM20T 🔧 Explore Switch(CLLI: NPVLILNADS0))
630-365	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	ELBURN	ELBNILEURS0	00/00/0000	Prefix Type: RBOC Switch Name: ELBURN Switch Type: N/A LATA: Chicago IL METRO (358) Tandem: CHCGILNE20T 🔧 Explore Switch(CLLI: ELBNILEURS0))
630-365 is split into 1,000-number blocks - detail below
630-365-0XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	ELBURN	ELBNILEURS0	N/A	Prefix Type: RBOC Switch Name: ELBURN Switch Type: N/A LATA: Chicago IL METRO (358) Tandem: CHCGILNE20T 🔧 Explore Switch(CLLI: ELBNILEURS0))
630-365-1XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	ELBURN	ELBNILEURS0	N/A	Prefix Type: RBOC Switch Name: ELBURN Switch Type: N/A LATA: Chicago IL METRO (358) Tandem: CHCGILNE20T 🔧 Explore Switch(CLLI: ELBNILEURS0))
630-365-2XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	ELBURN	ELBNILEURS0	N/A	Prefix Type: RBOC Switch Name: ELBURN Switch Type: N/A LATA: Chicago IL METRO (358) Tandem: CHCGILNE20T 🔧 Explore Switch(CLLI: ELBNILEURS0))
630-365-3XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	ELBURN	ELBNILEURS0	N/A	Prefix Type: RBOC Switch Name: ELBURN Switch Type: N/A LATA: Chicago IL METRO (358) Tandem: CHCGILNE20T 🔧 Explore Switch(CLLI: ELBNILEURS0))
630-365-4XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	ELBURN	ELBNILEURS0	N/A	Prefix Type: RBOC Switch Name: ELBURN Switch Type: N/A LATA: Chicago IL METRO (358) Tandem: CHCGILNE20T 🔧 Explore Switch(CLLI: ELBNILEURS0))
630-365-5XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	ELBURN	ELBNILEURS0	N/A	Prefix Type: RBOC Switch Name: ELBURN Switch Type: N/A LATA: Chicago IL METRO (358) Tandem: CHCGILNE20T 🔧 Explore Switch(CLLI: ELBNILEURS0))
630-365-6XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	ELBURN	ELBNILEURS0	N/A	Prefix Type: RBOC Switch Name: ELBURN Switch Type: N/A LATA: Chicago IL METRO (358) Tandem: CHCGILNE20T 🔧 Explore Switch(CLLI: ELBNILEURS0))
630-365-8XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	ELBURN	ELBNILEURS0	N/A	Prefix Type: RBOC Switch Name: ELBURN Switch Type: N/A LATA: Chicago IL METRO (358) Tandem: CHCGILNE20T 🔧 Explore Switch(CLLI: ELBNILEURS0))
630-365-9XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	ELBURN	ELBNILEURS0	N/A	Prefix Type: RBOC Switch Name: ELBURN Switch Type: N/A LATA: Chicago IL METRO (358) Tandem: CHCGILNE20T 🔧 Explore Switch(CLLI: ELBNILEURS0))
630-368	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	HINSDALE	OKBRILOADS0	00/00/0000	Prefix Type: RBOC Switch Name: OAKBROOK Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: LBRDILLM20T 🔧 Explore Switch(CLLI: OKBRILOADS0))
630-369	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	NAPERVILLE	NPVLILNADS0	00/00/0000	Prefix Type: RBOC Switch Name: NAPERVILLE NA Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: LBRDILLM20T 🔧 Explore Switch(CLLI: NPVLILNADS0))
630-372	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	BARTLETT	BRTLILBTDS0	00/00/0000	Prefix Type: RBOC Switch Name: BARTLETT Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILNE20T 🔧 Explore Switch(CLLI: BRTLILBTDS0))
630-375	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	AURORA	AURRILAEDS0	00/00/0000	Prefix Type: RBOC Switch Name: AURORA EAST DS0 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: LBRDILLM20T 🔧 Explore Switch(CLLI: AURRILAEDS0))
630-377	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	ST CHARLES	GENVILGNDS0	00/00/0000	Prefix Type: RBOC Switch Name: GENEVA Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILNE20T 🔧 Explore Switch(CLLI: GENVILGNDS0))
630-378	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	LEMONT	BGBKILBKDS0	00/00/0000	Prefix Type: RBOC Switch Name: BOLINGBROOK Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: LBRDILLM20T 🔧 Explore Switch(CLLI: BGBKILBKDS0))
630-378 is split into 1,000-number blocks - detail below
630-378-0XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	LEMONT	BGBKILBKDS0	N/A	Prefix Type: RBOC Switch Name: BOLINGBROOK Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: LBRDILLM20T 🔧 Explore Switch(CLLI: BGBKILBKDS0))
630-378-1XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	LEMONT	BGBKILBKDS0	N/A	Prefix Type: RBOC Switch Name: BOLINGBROOK Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: LBRDILLM20T 🔧 Explore Switch(CLLI: BGBKILBKDS0))
630-378-2XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	LEMONT	BGBKILBKDS0	N/A	Prefix Type: RBOC Switch Name: BOLINGBROOK Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: LBRDILLM20T 🔧 Explore Switch(CLLI: BGBKILBKDS0))
630-378-3XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	LEMONT	BGBKILBKDS0	N/A	Prefix Type: RBOC Switch Name: BOLINGBROOK Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: LBRDILLM20T 🔧 Explore Switch(CLLI: BGBKILBKDS0))
630-378-4XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	LEMONT	BGBKILBKDS0	N/A	Prefix Type: RBOC Switch Name: BOLINGBROOK Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: LBRDILLM20T 🔧 Explore Switch(CLLI: BGBKILBKDS0))
630-378-5XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	LEMONT	BGBKILBKDS0	N/A	Prefix Type: RBOC Switch Name: BOLINGBROOK Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: LBRDILLM20T 🔧 Explore Switch(CLLI: BGBKILBKDS0))
630-378-6XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	LEMONT	BGBKILBKDS0	N/A	Prefix Type: RBOC Switch Name: BOLINGBROOK Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: LBRDILLM20T 🔧 Explore Switch(CLLI: BGBKILBKDS0))
630-378-9XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	LEMONT	BGBKILBKDS0	N/A	Prefix Type: RBOC Switch Name: BOLINGBROOK Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: LBRDILLM20T 🔧 Explore Switch(CLLI: BGBKILBKDS0))
630-381	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	YORKVILLE	YRVLILYORS0	01/15/2015	Prefix Type: RBOC Switch Name: YORKVILLE Switch Type: N/A LATA: Chicago IL METRO (358) Tandem: LBRDILLM20T 🔧 Explore Switch(CLLI: YRVLILYORS0))
630-381 is split into 1,000-number blocks - detail below
630-381-2XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	YORKVILLE	YRVLILYORS0	01/20/2015	Prefix Type: RBOC Switch Name: YORKVILLE Switch Type: N/A LATA: Chicago IL METRO (358) Tandem: LBRDILLM20T 🔧 Explore Switch(CLLI: YRVLILYORS0))
630-381-3XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	YORKVILLE	YRVLILYORS0	01/20/2015	Prefix Type: RBOC Switch Name: YORKVILLE Switch Type: N/A LATA: Chicago IL METRO (358) Tandem: LBRDILLM20T 🔧 Explore Switch(CLLI: YRVLILYORS0))
630-384	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	WHEATON	WHTNILWHDS0	00/00/0000	Prefix Type: RBOC Switch Name: WHEATON DS0 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILNE20T 🔧 Explore Switch(CLLI: WHTNILWHDS0))
630-384 is split into 1,000-number blocks - detail below
630-384-3XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	WHEATON	WHTNILWHDS0	02/13/2003	Prefix Type: RBOC Switch Name: WHEATON DS0 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILNE20T 🔧 Explore Switch(CLLI: WHTNILWHDS0))
630-384-5XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	WHEATON	WHTNILWHDS0	02/13/2003	Prefix Type: RBOC Switch Name: WHEATON DS0 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILNE20T 🔧 Explore Switch(CLLI: WHTNILWHDS0))
630-385 is split into 1,000-number blocks - detail below
630-385-3XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	YORKVILLE	YRVLILYORS0	09/10/2007	Prefix Type: RBOC Switch Name: YORKVILLE Switch Type: N/A LATA: Chicago IL METRO (358) Tandem: LBRDILLM20T 🔧 Explore Switch(CLLI: YRVLILYORS0))
630-388 is split into 1,000-number blocks - detail below
630-388-2XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	NAPERVILLE	NPVLILNADS0	12/19/2003	Prefix Type: RBOC Switch Name: NAPERVILLE NA Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: LBRDILLM20T 🔧 Explore Switch(CLLI: NPVLILNADS0))
630-388-3XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	NAPERVILLE	NPVLILNADS0	01/03/2003	Prefix Type: RBOC Switch Name: NAPERVILLE NA Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: LBRDILLM20T 🔧 Explore Switch(CLLI: NPVLILNADS0))
630-388-4XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	NAPERVILLE	NPVLILNADS0	01/03/2003	Prefix Type: RBOC Switch Name: NAPERVILLE NA Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: LBRDILLM20T 🔧 Explore Switch(CLLI: NPVLILNADS0))
630-393	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	WARRENVL	WNVLILWVDS0	00/00/0000	Prefix Type: RBOC Switch Name: WARRENVILLE Switch Type: N/A LATA: Chicago IL METRO (358) Tandem: N/A 🔧 Explore Switch(CLLI: WNVLILWVDS0))
630-393 is split into 1,000-number blocks - detail below
630-393-0XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	WARRENVL	WNVLILWVDS0	N/A	Prefix Type: RBOC Switch Name: WARRENVILLE Switch Type: N/A LATA: Chicago IL METRO (358) Tandem: N/A 🔧 Explore Switch(CLLI: WNVLILWVDS0))
630-393-1XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	WARRENVL	WNVLILWVDS0	N/A	Prefix Type: RBOC Switch Name: WARRENVILLE Switch Type: N/A LATA: Chicago IL METRO (358) Tandem: N/A 🔧 Explore Switch(CLLI: WNVLILWVDS0))
630-393-2XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	WARRENVL	WNVLILWVDS0	N/A	Prefix Type: RBOC Switch Name: WARRENVILLE Switch Type: N/A LATA: Chicago IL METRO (358) Tandem: N/A 🔧 Explore Switch(CLLI: WNVLILWVDS0))
630-393-3XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	WARRENVL	WNVLILWVDS0	N/A	Prefix Type: RBOC Switch Name: WARRENVILLE Switch Type: N/A LATA: Chicago IL METRO (358) Tandem: N/A 🔧 Explore Switch(CLLI: WNVLILWVDS0))
630-393-4XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	WARRENVL	WNVLILWVDS0	N/A	Prefix Type: RBOC Switch Name: WARRENVILLE Switch Type: N/A LATA: Chicago IL METRO (358) Tandem: N/A 🔧 Explore Switch(CLLI: WNVLILWVDS0))
630-393-5XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	WARRENVL	WNVLILWVDS0	N/A	Prefix Type: RBOC Switch Name: WARRENVILLE Switch Type: N/A LATA: Chicago IL METRO (358) Tandem: N/A 🔧 Explore Switch(CLLI: WNVLILWVDS0))
630-393-6XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	WARRENVL	WNVLILWVDS0	N/A	Prefix Type: RBOC Switch Name: WARRENVILLE Switch Type: N/A LATA: Chicago IL METRO (358) Tandem: N/A 🔧 Explore Switch(CLLI: WNVLILWVDS0))
630-393-7XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	WARRENVL	WNVLILWVDS0	N/A	Prefix Type: RBOC Switch Name: WARRENVILLE Switch Type: N/A LATA: Chicago IL METRO (358) Tandem: N/A 🔧 Explore Switch(CLLI: WNVLILWVDS0))
630-393-9XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	WARRENVL	WNVLILWVDS0	N/A	Prefix Type: RBOC Switch Name: WARRENVILLE Switch Type: N/A LATA: Chicago IL METRO (358) Tandem: N/A 🔧 Explore Switch(CLLI: WNVLILWVDS0))
630-406	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	BATAVIA	GENVILGNDS0	00/00/0000	Prefix Type: RBOC Switch Name: GENEVA Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILNE20T 🔧 Explore Switch(CLLI: GENVILGNDS0))
630-407	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	WHEATON	WHTNILWHRS0	00/00/0000	Prefix Type: RBOC Switch Name: WHEATON RS0 Switch Type: N/A LATA: Chicago IL METRO (358) Tandem: LBRDILLM20T 🔧 Explore Switch(CLLI: WHTNILWHRS0))
630-407 is split into 1,000-number blocks - detail below
630-407-0XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	WHEATON	WHTNILWHRS0	N/A	Prefix Type: RBOC Switch Name: WHEATON RS0 Switch Type: N/A LATA: Chicago IL METRO (358) Tandem: LBRDILLM20T 🔧 Explore Switch(CLLI: WHTNILWHRS0))
630-407-2XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	WHEATON	WHTNILWHRS0	N/A	Prefix Type: RBOC Switch Name: WHEATON RS0 Switch Type: N/A LATA: Chicago IL METRO (358) Tandem: LBRDILLM20T 🔧 Explore Switch(CLLI: WHTNILWHRS0))
630-407-5XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	WHEATON	WHTNILWHRS0	N/A	Prefix Type: RBOC Switch Name: WHEATON RS0 Switch Type: N/A LATA: Chicago IL METRO (358) Tandem: LBRDILLM20T 🔧 Explore Switch(CLLI: WHTNILWHRS0))
630-407-6XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	WHEATON	WHTNILWHRS0	N/A	Prefix Type: RBOC Switch Name: WHEATON RS0 Switch Type: N/A LATA: Chicago IL METRO (358) Tandem: LBRDILLM20T 🔧 Explore Switch(CLLI: WHTNILWHRS0))
630-407-8XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	WHEATON	WHTNILWHRS0	N/A	Prefix Type: RBOC Switch Name: WHEATON RS0 Switch Type: N/A LATA: Chicago IL METRO (358) Tandem: LBRDILLM20T 🔧 Explore Switch(CLLI: WHTNILWHRS0))
630-415	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	ELMHURST	EMHRILETDS0	00/00/0000	Prefix Type: RBOC Switch Name: ELMHURST Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: NCHCILNC20T 🔧 Explore Switch(CLLI: EMHRILETDS0))
630-415 is split into 1,000-number blocks - detail below
630-415-3XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	ELMHURST	EMHRILETDS0	N/A	Prefix Type: RBOC Switch Name: ELMHURST Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: NCHCILNC20T 🔧 Explore Switch(CLLI: EMHRILETDS0))
630-416	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	NAPERVILLE	NPVLILNADS0	00/00/0000	Prefix Type: RBOC Switch Name: NAPERVILLE NA Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: LBRDILLM20T 🔧 Explore Switch(CLLI: NPVLILNADS0))
630-420	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	NAPERVILLE	NPVLILNADS0	00/00/0000	Prefix Type: RBOC Switch Name: NAPERVILLE NA Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: LBRDILLM20T 🔧 Explore Switch(CLLI: NPVLILNADS0))
630-424	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	LOMBARD	LBRDILLMDS1	00/00/0000	Prefix Type: RBOC Switch Name: LOMBARD MAIN DS1 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: LBRDILLM20T 🔧 Explore Switch(CLLI: LBRDILLMDS1))
630-427	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	DOWNERSGRV	LEMTILLNDS0	00/00/0000	Prefix Type: RBOC Switch Name: LEMONT NORTH Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: LBRDILLM20T 🔧 Explore Switch(CLLI: LEMTILLNDS0))
630-427 is split into 1,000-number blocks - detail below
630-427-0XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	DOWNERSGRV	LEMTILLNDS0	N/A	Prefix Type: RBOC Switch Name: LEMONT NORTH Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: LBRDILLM20T 🔧 Explore Switch(CLLI: LEMTILLNDS0))
630-427-1XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	DOWNERSGRV	LEMTILLNDS0	N/A	Prefix Type: RBOC Switch Name: LEMONT NORTH Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: LBRDILLM20T 🔧 Explore Switch(CLLI: LEMTILLNDS0))
630-427-2XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	DOWNERSGRV	LEMTILLNDS0	N/A	Prefix Type: RBOC Switch Name: LEMONT NORTH Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: LBRDILLM20T 🔧 Explore Switch(CLLI: LEMTILLNDS0))
630-427-3XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	DOWNERSGRV	LEMTILLNDS0	N/A	Prefix Type: RBOC Switch Name: LEMONT NORTH Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: LBRDILLM20T 🔧 Explore Switch(CLLI: LEMTILLNDS0))
630-427-9XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	DOWNERSGRV	LEMTILLNDS0	N/A	Prefix Type: RBOC Switch Name: LEMONT NORTH Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: LBRDILLM20T 🔧 Explore Switch(CLLI: LEMTILLNDS0))
630-428	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	NAPERVILLE	NPVLILNADS0	00/00/0000	Prefix Type: RBOC Switch Name: NAPERVILLE NA Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: LBRDILLM20T 🔧 Explore Switch(CLLI: NPVLILNADS0))
630-434	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	DOWNERSGRV	DWGVILDGDS0	00/00/0000	Prefix Type: RBOC Switch Name: DOWNERS GROVE DS0 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: LBRDILLM20T 🔧 Explore Switch(CLLI: DWGVILDGDS0))
630-435	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	DOWNERSGRV	DWGVILDGDS0	00/00/0000	Prefix Type: RBOC Switch Name: DOWNERS GROVE DS0 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: LBRDILLM20T 🔧 Explore Switch(CLLI: DWGVILDGDS0))
630-435 is split into 1,000-number blocks - detail below
630-435-0XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	DOWNERSGRV	DWGVILDGDS0	N/A	Prefix Type: RBOC Switch Name: DOWNERS GROVE DS0 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: LBRDILLM20T 🔧 Explore Switch(CLLI: DWGVILDGDS0))
630-435-1XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	DOWNERSGRV	DWGVILDGDS0	N/A	Prefix Type: RBOC Switch Name: DOWNERS GROVE DS0 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: LBRDILLM20T 🔧 Explore Switch(CLLI: DWGVILDGDS0))
630-435-2XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	DOWNERSGRV	DWGVILDGDS0	N/A	Prefix Type: RBOC Switch Name: DOWNERS GROVE DS0 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: LBRDILLM20T 🔧 Explore Switch(CLLI: DWGVILDGDS0))
630-435-3XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	DOWNERSGRV	DWGVILDGDS0	N/A	Prefix Type: RBOC Switch Name: DOWNERS GROVE DS0 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: LBRDILLM20T 🔧 Explore Switch(CLLI: DWGVILDGDS0))
630-435-4XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	DOWNERSGRV	DWGVILDGDS0	N/A	Prefix Type: RBOC Switch Name: DOWNERS GROVE DS0 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: LBRDILLM20T 🔧 Explore Switch(CLLI: DWGVILDGDS0))
630-435-5XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	DOWNERSGRV	DWGVILDGDS0	N/A	Prefix Type: RBOC Switch Name: DOWNERS GROVE DS0 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: LBRDILLM20T 🔧 Explore Switch(CLLI: DWGVILDGDS0))
630-435-6XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	DOWNERSGRV	DWGVILDGDS0	N/A	Prefix Type: RBOC Switch Name: DOWNERS GROVE DS0 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: LBRDILLM20T 🔧 Explore Switch(CLLI: DWGVILDGDS0))
630-435-7XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	DOWNERSGRV	DWGVILDGDS0	N/A	Prefix Type: RBOC Switch Name: DOWNERS GROVE DS0 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: LBRDILLM20T 🔧 Explore Switch(CLLI: DWGVILDGDS0))
630-435-8XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	DOWNERSGRV	DWGVILDGDS0	N/A	Prefix Type: RBOC Switch Name: DOWNERS GROVE DS0 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: LBRDILLM20T 🔧 Explore Switch(CLLI: DWGVILDGDS0))
630-437 is split into 1,000-number blocks - detail below
630-437-2XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	DOWNERSGRV	DWGVILDGDS0	01/03/2001	Prefix Type: RBOC Switch Name: DOWNERS GROVE DS0 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: LBRDILLM20T 🔧 Explore Switch(CLLI: DWGVILDGDS0))
630-437-3XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	DOWNERSGRV	DWGVILDGDS0	01/03/2001	Prefix Type: RBOC Switch Name: DOWNERS GROVE DS0 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: LBRDILLM20T 🔧 Explore Switch(CLLI: DWGVILDGDS0))
630-437-4XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	DOWNERSGRV	DWGVILDGDS0	01/03/2001	Prefix Type: RBOC Switch Name: DOWNERS GROVE DS0 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: LBRDILLM20T 🔧 Explore Switch(CLLI: DWGVILDGDS0))
630-437-6XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	DOWNERSGRV	DWGVILDGDS0	11/17/2000	Prefix Type: RBOC Switch Name: DOWNERS GROVE DS0 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: LBRDILLM20T 🔧 Explore Switch(CLLI: DWGVILDGDS0))
630-437-7XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	DOWNERSGRV	DWGVILDGDS0	11/17/2000	Prefix Type: RBOC Switch Name: DOWNERS GROVE DS0 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: LBRDILLM20T 🔧 Explore Switch(CLLI: DWGVILDGDS0))
630-437-8XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	DOWNERSGRV	DWGVILDGDS0	11/17/2000	Prefix Type: RBOC Switch Name: DOWNERS GROVE DS0 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: LBRDILLM20T 🔧 Explore Switch(CLLI: DWGVILDGDS0))
630-437-9XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	DOWNERSGRV	DWGVILDGDS0	11/17/2000	Prefix Type: RBOC Switch Name: DOWNERS GROVE DS0 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: LBRDILLM20T 🔧 Explore Switch(CLLI: DWGVILDGDS0))
630-438 is split into 1,000-number blocks - detail below
630-438-5XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	ITASCA	BNSVILBVDS0	04/24/2000	Prefix Type: RBOC Switch Name: BENSENVILLE Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: NCHCILNC20T 🔧 Explore Switch(CLLI: BNSVILBVDS0))
630-438-6XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	ITASCA	BNSVILBVDS0	02/25/2001	Prefix Type: RBOC Switch Name: BENSENVILLE Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: NCHCILNC20T 🔧 Explore Switch(CLLI: BNSVILBVDS0))
630-443	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	ST CHARLES	GENVILGNDS0	00/00/0000	Prefix Type: RBOC Switch Name: GENEVA Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILNE20T 🔧 Explore Switch(CLLI: GENVILGNDS0))
630-444	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	ST CHARLES	GENVILGNDS0	00/00/0000	Prefix Type: RBOC Switch Name: GENEVA Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILNE20T 🔧 Explore Switch(CLLI: GENVILGNDS0))
630-444 is split into 1,000-number blocks - detail below
630-444-0XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	ST CHARLES	GENVILGNDS0	N/A	Prefix Type: RBOC Switch Name: GENEVA Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILNE20T 🔧 Explore Switch(CLLI: GENVILGNDS0))
630-444-1XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	ST CHARLES	GENVILGNDS0	N/A	Prefix Type: RBOC Switch Name: GENEVA Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILNE20T 🔧 Explore Switch(CLLI: GENVILGNDS0))
630-444-2XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	ST CHARLES	GENVILGNDS0	N/A	Prefix Type: RBOC Switch Name: GENEVA Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILNE20T 🔧 Explore Switch(CLLI: GENVILGNDS0))
630-444-3XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	ST CHARLES	GENVILGNDS0	N/A	Prefix Type: RBOC Switch Name: GENEVA Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILNE20T 🔧 Explore Switch(CLLI: GENVILGNDS0))
630-444-4XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	ST CHARLES	GENVILGNDS0	N/A	Prefix Type: RBOC Switch Name: GENEVA Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILNE20T 🔧 Explore Switch(CLLI: GENVILGNDS0))
630-444-5XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	ST CHARLES	GENVILGNDS0	N/A	Prefix Type: RBOC Switch Name: GENEVA Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILNE20T 🔧 Explore Switch(CLLI: GENVILGNDS0))
630-444-6XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	ST CHARLES	GENVILGNDS0	N/A	Prefix Type: RBOC Switch Name: GENEVA Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILNE20T 🔧 Explore Switch(CLLI: GENVILGNDS0))
630-444-8XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	ST CHARLES	GENVILGNDS0	N/A	Prefix Type: RBOC Switch Name: GENEVA Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILNE20T 🔧 Explore Switch(CLLI: GENVILGNDS0))
630-444-9XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	ST CHARLES	GENVILGNDS0	N/A	Prefix Type: RBOC Switch Name: GENEVA Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILNE20T 🔧 Explore Switch(CLLI: GENVILGNDS0))
630-455	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	HINSDALE	HNDLILHIDS0	00/00/0000	Prefix Type: RBOC Switch Name: HINSDALE Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: LBRDILLM20T 🔧 Explore Switch(CLLI: HNDLILHIDS0))
630-455 is split into 1,000-number blocks - detail below
630-455-0XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	HINSDALE	HNDLILHIDS0	N/A	Prefix Type: RBOC Switch Name: HINSDALE Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: LBRDILLM20T 🔧 Explore Switch(CLLI: HNDLILHIDS0))
630-455-1XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	HINSDALE	HNDLILHIDS0	N/A	Prefix Type: RBOC Switch Name: HINSDALE Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: LBRDILLM20T 🔧 Explore Switch(CLLI: HNDLILHIDS0))
630-455-2XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	HINSDALE	HNDLILHIDS0	N/A	Prefix Type: RBOC Switch Name: HINSDALE Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: LBRDILLM20T 🔧 Explore Switch(CLLI: HNDLILHIDS0))
630-455-3XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	HINSDALE	HNDLILHIDS0	N/A	Prefix Type: RBOC Switch Name: HINSDALE Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: LBRDILLM20T 🔧 Explore Switch(CLLI: HNDLILHIDS0))
630-455-4XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	HINSDALE	HNDLILHIDS0	N/A	Prefix Type: RBOC Switch Name: HINSDALE Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: LBRDILLM20T 🔧 Explore Switch(CLLI: HNDLILHIDS0))
630-455-5XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	HINSDALE	HNDLILHIDS0	N/A	Prefix Type: RBOC Switch Name: HINSDALE Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: LBRDILLM20T 🔧 Explore Switch(CLLI: HNDLILHIDS0))
630-455-6XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	HINSDALE	HNDLILHIDS0	N/A	Prefix Type: RBOC Switch Name: HINSDALE Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: LBRDILLM20T 🔧 Explore Switch(CLLI: HNDLILHIDS0))
630-455-7XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	HINSDALE	HNDLILHIDS0	N/A	Prefix Type: RBOC Switch Name: HINSDALE Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: LBRDILLM20T 🔧 Explore Switch(CLLI: HNDLILHIDS0))
630-455-9XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	HINSDALE	HNDLILHIDS0	N/A	Prefix Type: RBOC Switch Name: HINSDALE Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: LBRDILLM20T 🔧 Explore Switch(CLLI: HNDLILHIDS0))
630-458	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	ELMHURST	LBRDILLMDS1	00/00/0000	Prefix Type: RBOC Switch Name: LOMBARD MAIN DS1 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: LBRDILLM20T 🔧 Explore Switch(CLLI: LBRDILLMDS1))
630-458 is split into 1,000-number blocks - detail below
630-458-0XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	ELMHURST	LBRDILLMDS1	N/A	Prefix Type: RBOC Switch Name: LOMBARD MAIN DS1 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: LBRDILLM20T 🔧 Explore Switch(CLLI: LBRDILLMDS1))
630-458-1XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	ELMHURST	LBRDILLMDS1	N/A	Prefix Type: RBOC Switch Name: LOMBARD MAIN DS1 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: LBRDILLM20T 🔧 Explore Switch(CLLI: LBRDILLMDS1))
630-458-2XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	ELMHURST	LBRDILLMDS1	N/A	Prefix Type: RBOC Switch Name: LOMBARD MAIN DS1 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: LBRDILLM20T 🔧 Explore Switch(CLLI: LBRDILLMDS1))
630-458-3XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	ELMHURST	LBRDILLMDS1	N/A	Prefix Type: RBOC Switch Name: LOMBARD MAIN DS1 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: LBRDILLM20T 🔧 Explore Switch(CLLI: LBRDILLMDS1))
630-458-4XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	ELMHURST	LBRDILLMDS1	N/A	Prefix Type: RBOC Switch Name: LOMBARD MAIN DS1 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: LBRDILLM20T 🔧 Explore Switch(CLLI: LBRDILLMDS1))
630-458-5XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	ELMHURST	LBRDILLMDS1	N/A	Prefix Type: RBOC Switch Name: LOMBARD MAIN DS1 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: LBRDILLM20T 🔧 Explore Switch(CLLI: LBRDILLMDS1))
630-458-7XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	ELMHURST	LBRDILLMDS1	N/A	Prefix Type: RBOC Switch Name: LOMBARD MAIN DS1 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: LBRDILLM20T 🔧 Explore Switch(CLLI: LBRDILLMDS1))
630-458-8XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	ELMHURST	LBRDILLMDS1	N/A	Prefix Type: RBOC Switch Name: LOMBARD MAIN DS1 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: LBRDILLM20T 🔧 Explore Switch(CLLI: LBRDILLMDS1))
630-458-9XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	ELMHURST	LBRDILLMDS1	N/A	Prefix Type: RBOC Switch Name: LOMBARD MAIN DS1 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: LBRDILLM20T 🔧 Explore Switch(CLLI: LBRDILLMDS1))
630-462	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	WHEATON	WHTNILWHDS0	00/00/0000	Prefix Type: RBOC Switch Name: WHEATON DS0 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILNE20T 🔧 Explore Switch(CLLI: WHTNILWHDS0))
630-463 is split into 1,000-number blocks - detail below
630-463-3XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	GENEVA	GENVILGNDS0	10/13/2000	Prefix Type: RBOC Switch Name: GENEVA Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILNE20T 🔧 Explore Switch(CLLI: GENVILGNDS0))
630-466	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	SUGARGROVE	SGGVILSVDS0	00/00/0000	Prefix Type: RBOC Switch Name: SUGAR GROVE Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: LBRDILLM20T 🔧 Explore Switch(CLLI: SGGVILSVDS0))
630-467	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	ITASCA	BNSVILBVDS0	00/00/0000	Prefix Type: RBOC Switch Name: BENSENVILLE Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: NCHCILNC20T 🔧 Explore Switch(CLLI: BNSVILBVDS0))
630-467 is split into 1,000-number blocks - detail below
630-467-0XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	ITASCA	BNSVILBVDS0	N/A	Prefix Type: RBOC Switch Name: BENSENVILLE Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: NCHCILNC20T 🔧 Explore Switch(CLLI: BNSVILBVDS0))
630-467-1XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	ITASCA	BNSVILBVDS0	N/A	Prefix Type: RBOC Switch Name: BENSENVILLE Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: NCHCILNC20T 🔧 Explore Switch(CLLI: BNSVILBVDS0))
630-467-2XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	ITASCA	BNSVILBVDS0	N/A	Prefix Type: RBOC Switch Name: BENSENVILLE Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: NCHCILNC20T 🔧 Explore Switch(CLLI: BNSVILBVDS0))
630-467-3XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	ITASCA	BNSVILBVDS0	N/A	Prefix Type: RBOC Switch Name: BENSENVILLE Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: NCHCILNC20T 🔧 Explore Switch(CLLI: BNSVILBVDS0))
630-467-4XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	ITASCA	BNSVILBVDS0	N/A	Prefix Type: RBOC Switch Name: BENSENVILLE Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: NCHCILNC20T 🔧 Explore Switch(CLLI: BNSVILBVDS0))
630-467-6XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	ITASCA	BNSVILBVDS0	N/A	Prefix Type: RBOC Switch Name: BENSENVILLE Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: NCHCILNC20T 🔧 Explore Switch(CLLI: BNSVILBVDS0))
630-467-7XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	ITASCA	BNSVILBVDS0	N/A	Prefix Type: RBOC Switch Name: BENSENVILLE Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: NCHCILNC20T 🔧 Explore Switch(CLLI: BNSVILBVDS0))
630-467-8XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	ITASCA	BNSVILBVDS0	N/A	Prefix Type: RBOC Switch Name: BENSENVILLE Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: NCHCILNC20T 🔧 Explore Switch(CLLI: BNSVILBVDS0))
630-468 is split into 1,000-number blocks - detail below
630-468-4XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	HINSDALE	HNDLILHIDS0	09/26/2002	Prefix Type: RBOC Switch Name: HINSDALE Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: LBRDILLM20T 🔧 Explore Switch(CLLI: HNDLILHIDS0))
630-468-8XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	HINSDALE	HNDLILHIDS0	01/08/2003	Prefix Type: RBOC Switch Name: HINSDALE Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: LBRDILLM20T 🔧 Explore Switch(CLLI: HNDLILHIDS0))
630-469	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	GLEN ELLYN	GLELILGEDS0	00/00/0000	Prefix Type: RBOC Switch Name: GLEN ELLYN Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: NCHCILNC20T 🔧 Explore Switch(CLLI: GLELILGEDS0))
630-472	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	HINSDALE	OKBRILOADS0	00/00/0000	Prefix Type: RBOC Switch Name: OAKBROOK Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: LBRDILLM20T 🔧 Explore Switch(CLLI: OKBRILOADS0))
630-482	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	BATAVIA	GENVILGNDS0	00/00/0000	Prefix Type: RBOC Switch Name: GENEVA Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILNE20T 🔧 Explore Switch(CLLI: GENVILGNDS0))
630-482 is split into 1,000-number blocks - detail below
630-482-2XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	BATAVIA	GENVILGNDS0	N/A	Prefix Type: RBOC Switch Name: GENEVA Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILNE20T 🔧 Explore Switch(CLLI: GENVILGNDS0))
630-482-3XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	BATAVIA	GENVILGNDS0	N/A	Prefix Type: RBOC Switch Name: GENEVA Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILNE20T 🔧 Explore Switch(CLLI: GENVILGNDS0))
630-482-5XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	BATAVIA	GENVILGNDS0	N/A	Prefix Type: RBOC Switch Name: GENEVA Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILNE20T 🔧 Explore Switch(CLLI: GENVILGNDS0))
630-482-7XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	BATAVIA	GENVILGNDS0	N/A	Prefix Type: RBOC Switch Name: GENEVA Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILNE20T 🔧 Explore Switch(CLLI: GENVILGNDS0))
630-482-9XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	BATAVIA	GENVILGNDS0	N/A	Prefix Type: RBOC Switch Name: GENEVA Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILNE20T 🔧 Explore Switch(CLLI: GENVILGNDS0))
630-483	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	BARTLETT	BRTLILBTDS0	00/00/0000	Prefix Type: RBOC Switch Name: BARTLETT Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILNE20T 🔧 Explore Switch(CLLI: BRTLILBTDS0))
630-493	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	DOWNERSGRV	DWGVILDGDS0	00/00/0000	Prefix Type: RBOC Switch Name: DOWNERS GROVE DS0 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: LBRDILLM20T 🔧 Explore Switch(CLLI: DWGVILDGDS0))
630-495	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	LOMBARD	LBRDILLMDS1	00/00/0000	Prefix Type: RBOC Switch Name: LOMBARD MAIN DS1 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: LBRDILLM20T 🔧 Explore Switch(CLLI: LBRDILLMDS1))
630-497	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	ELGIN	ELGNILELDS0	00/00/0000	Prefix Type: RBOC Switch Name: ELGIN Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: NCHCILNC20T 🔧 Explore Switch(CLLI: ELGNILELDS0))
630-497 is split into 1,000-number blocks - detail below
630-497-0XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	ELGIN	ELGNILELDS0	N/A	Prefix Type: RBOC Switch Name: ELGIN Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: NCHCILNC20T 🔧 Explore Switch(CLLI: ELGNILELDS0))
630-497-1XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	ELGIN	ELGNILELDS0	N/A	Prefix Type: RBOC Switch Name: ELGIN Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: NCHCILNC20T 🔧 Explore Switch(CLLI: ELGNILELDS0))
630-497-8XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	ELGIN	ELGNILELDS0	N/A	Prefix Type: RBOC Switch Name: ELGIN Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: NCHCILNC20T 🔧 Explore Switch(CLLI: ELGNILELDS0))
630-497-9XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	ELGIN	ELGNILELDS0	N/A	Prefix Type: RBOC Switch Name: ELGIN Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: NCHCILNC20T 🔧 Explore Switch(CLLI: ELGNILELDS0))
630-499	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	AURORA	AURRILAEDS0	00/00/0000	Prefix Type: RBOC Switch Name: AURORA EAST DS0 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: LBRDILLM20T 🔧 Explore Switch(CLLI: AURRILAEDS0))
630-501 is split into 1,000-number blocks - detail below
630-501-2XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	ELMHURST	EMHRILETDS0	10/01/2010	Prefix Type: RBOC Switch Name: ELMHURST Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: NCHCILNC20T 🔧 Explore Switch(CLLI: EMHRILETDS0))
630-501-3XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	ELMHURST	EMHRILETDS0	10/01/2010	Prefix Type: RBOC Switch Name: ELMHURST Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: NCHCILNC20T 🔧 Explore Switch(CLLI: EMHRILETDS0))
630-505	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	NAPERVILLE	NPVLILNEDS0	00/00/0000	Prefix Type: RBOC Switch Name: NAPERVILLE NE Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: LBRDILLM20T 🔧 Explore Switch(CLLI: NPVLILNEDS0))
630-505 is split into 1,000-number blocks - detail below
630-505-0XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	NAPERVILLE	NPVLILNEDS0	N/A	Prefix Type: RBOC Switch Name: NAPERVILLE NE Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: LBRDILLM20T 🔧 Explore Switch(CLLI: NPVLILNEDS0))
630-505-1XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	NAPERVILLE	NPVLILNEDS0	N/A	Prefix Type: RBOC Switch Name: NAPERVILLE NE Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: LBRDILLM20T 🔧 Explore Switch(CLLI: NPVLILNEDS0))
630-505-2XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	NAPERVILLE	NPVLILNEDS0	N/A	Prefix Type: RBOC Switch Name: NAPERVILLE NE Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: LBRDILLM20T 🔧 Explore Switch(CLLI: NPVLILNEDS0))
630-505-3XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	NAPERVILLE	NPVLILNEDS0	N/A	Prefix Type: RBOC Switch Name: NAPERVILLE NE Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: LBRDILLM20T 🔧 Explore Switch(CLLI: NPVLILNEDS0))
630-505-4XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	NAPERVILLE	NPVLILNEDS0	N/A	Prefix Type: RBOC Switch Name: NAPERVILLE NE Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: LBRDILLM20T 🔧 Explore Switch(CLLI: NPVLILNEDS0))
630-505-5XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	NAPERVILLE	NPVLILNEDS0	N/A	Prefix Type: RBOC Switch Name: NAPERVILLE NE Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: LBRDILLM20T 🔧 Explore Switch(CLLI: NPVLILNEDS0))
630-505-7XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	NAPERVILLE	NPVLILNEDS0	N/A	Prefix Type: RBOC Switch Name: NAPERVILLE NE Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: LBRDILLM20T 🔧 Explore Switch(CLLI: NPVLILNEDS0))
630-505-8XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	NAPERVILLE	NPVLILNEDS0	N/A	Prefix Type: RBOC Switch Name: NAPERVILLE NE Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: LBRDILLM20T 🔧 Explore Switch(CLLI: NPVLILNEDS0))
630-505-9XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	NAPERVILLE	NPVLILNEDS0	N/A	Prefix Type: RBOC Switch Name: NAPERVILLE NE Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: LBRDILLM20T 🔧 Explore Switch(CLLI: NPVLILNEDS0))
630-510	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	WHEATON	WHTNILWHDS0	00/00/0000	Prefix Type: RBOC Switch Name: WHEATON DS0 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILNE20T 🔧 Explore Switch(CLLI: WHTNILWHDS0))
630-512	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	DOWNERSGRV	DWGVILDGDS1	00/00/0000	Prefix Type: RBOC Switch Name: DOWNERS GROVE DS1 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: LBRDILLM20T 🔧 Explore Switch(CLLI: DWGVILDGDS1))
630-512 is split into 1,000-number blocks - detail below
630-512-0XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	DOWNERSGRV	DWGVILDGDS1	N/A	Prefix Type: RBOC Switch Name: DOWNERS GROVE DS1 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: LBRDILLM20T 🔧 Explore Switch(CLLI: DWGVILDGDS1))
630-512-2XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	DOWNERSGRV	DWGVILDGDS1	N/A	Prefix Type: RBOC Switch Name: DOWNERS GROVE DS1 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: LBRDILLM20T 🔧 Explore Switch(CLLI: DWGVILDGDS1))
630-512-3XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	DOWNERSGRV	DWGVILDGDS1	N/A	Prefix Type: RBOC Switch Name: DOWNERS GROVE DS1 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: LBRDILLM20T 🔧 Explore Switch(CLLI: DWGVILDGDS1))
630-512-4XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	DOWNERSGRV	DWGVILDGDS1	N/A	Prefix Type: RBOC Switch Name: DOWNERS GROVE DS1 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: LBRDILLM20T 🔧 Explore Switch(CLLI: DWGVILDGDS1))
630-512-5XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	DOWNERSGRV	DWGVILDGDS1	N/A	Prefix Type: RBOC Switch Name: DOWNERS GROVE DS1 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: LBRDILLM20T 🔧 Explore Switch(CLLI: DWGVILDGDS1))
630-512-6XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	DOWNERSGRV	DWGVILDGDS1	N/A	Prefix Type: RBOC Switch Name: DOWNERS GROVE DS1 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: LBRDILLM20T 🔧 Explore Switch(CLLI: DWGVILDGDS1))
630-512-8XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	DOWNERSGRV	DWGVILDGDS1	N/A	Prefix Type: RBOC Switch Name: DOWNERS GROVE DS1 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: LBRDILLM20T 🔧 Explore Switch(CLLI: DWGVILDGDS1))
630-512-9XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	DOWNERSGRV	DWGVILDGDS1	N/A	Prefix Type: RBOC Switch Name: DOWNERS GROVE DS1 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: LBRDILLM20T 🔧 Explore Switch(CLLI: DWGVILDGDS1))
630-513	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	ST CHARLES	GENVILGNDS0	00/00/0000	Prefix Type: RBOC Switch Name: GENEVA Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILNE20T 🔧 Explore Switch(CLLI: GENVILGNDS0))
630-515	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	DOWNERSGRV	DWGVILDGDS1	00/00/0000	Prefix Type: RBOC Switch Name: DOWNERS GROVE DS1 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: LBRDILLM20T 🔧 Explore Switch(CLLI: DWGVILDGDS1))
630-516	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	ELMHURST	EMHRILETDS0	00/00/0000	Prefix Type: RBOC Switch Name: ELMHURST Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: NCHCILNC20T 🔧 Explore Switch(CLLI: EMHRILETDS0))
630-517 is split into 1,000-number blocks - detail below
630-517-1XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	WHEATON	WHTNILWHDS0	10/21/2004	Prefix Type: RBOC Switch Name: WHEATON DS0 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILNE20T 🔧 Explore Switch(CLLI: WHTNILWHDS0))
630-517-7XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	WHEATON	WHTNILWHDS0	04/14/2008	Prefix Type: RBOC Switch Name: WHEATON DS0 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILNE20T 🔧 Explore Switch(CLLI: WHTNILWHDS0))
630-518 is split into 1,000-number blocks - detail below
630-518-3XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	AURORA	AURRILAEDS0	04/19/2001	Prefix Type: RBOC Switch Name: AURORA EAST DS0 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: LBRDILLM20T 🔧 Explore Switch(CLLI: AURRILAEDS0))
630-521	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	BENSENVL	BNSVILBVDS0	00/00/0000	Prefix Type: RBOC Switch Name: BENSENVILLE Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: NCHCILNC20T 🔧 Explore Switch(CLLI: BNSVILBVDS0))
630-521 is split into 1,000-number blocks - detail below
630-521-0XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	BENSENVL	BNSVILBVDS0	N/A	Prefix Type: RBOC Switch Name: BENSENVILLE Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: NCHCILNC20T 🔧 Explore Switch(CLLI: BNSVILBVDS0))
630-521-1XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	BENSENVL	BNSVILBVDS0	N/A	Prefix Type: RBOC Switch Name: BENSENVILLE Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: NCHCILNC20T 🔧 Explore Switch(CLLI: BNSVILBVDS0))
630-521-2XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	BENSENVL	BNSVILBVDS0	N/A	Prefix Type: RBOC Switch Name: BENSENVILLE Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: NCHCILNC20T 🔧 Explore Switch(CLLI: BNSVILBVDS0))
630-521-8XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	BENSENVL	BNSVILBVDS0	N/A	Prefix Type: RBOC Switch Name: BENSENVILLE Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: NCHCILNC20T 🔧 Explore Switch(CLLI: BNSVILBVDS0))
630-521-9XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	BENSENVL	BNSVILBVDS0	N/A	Prefix Type: RBOC Switch Name: BENSENVILLE Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: NCHCILNC20T 🔧 Explore Switch(CLLI: BNSVILBVDS0))
630-527	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	NAPERVILLE	NPVLILNADS0	00/00/0000	Prefix Type: RBOC Switch Name: NAPERVILLE NA Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: LBRDILLM20T 🔧 Explore Switch(CLLI: NPVLILNADS0))
630-529	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	ROSELLE	RSLLILRZDS0	00/00/0000	Prefix Type: RBOC Switch Name: ROSELLE Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILNE20T 🔧 Explore Switch(CLLI: RSLLILRZDS0))
630-530	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	ELMHURST	EMHRILETDS0	00/00/0000	Prefix Type: RBOC Switch Name: ELMHURST Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: NCHCILNC20T 🔧 Explore Switch(CLLI: EMHRILETDS0))
630-534 is split into 1,000-number blocks - detail below
630-534-4XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	GLEN ELLYN	GLELILGEDS0	06/27/2000	Prefix Type: RBOC Switch Name: GLEN ELLYN Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: NCHCILNC20T 🔧 Explore Switch(CLLI: GLELILGEDS0))
630-534-6XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	GLEN ELLYN	GLELILGEDS0	09/21/2001	Prefix Type: RBOC Switch Name: GLEN ELLYN Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: NCHCILNC20T 🔧 Explore Switch(CLLI: GLELILGEDS0))
630-534-7XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	GLEN ELLYN	GLELILGEDS0	09/21/2001	Prefix Type: RBOC Switch Name: GLEN ELLYN Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: NCHCILNC20T 🔧 Explore Switch(CLLI: GLELILGEDS0))
630-534-8XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	GLEN ELLYN	GLELILGEDS0	09/21/2001	Prefix Type: RBOC Switch Name: GLEN ELLYN Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: NCHCILNC20T 🔧 Explore Switch(CLLI: GLELILGEDS0))
630-537	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	HINSDALE	OKBRILOADS0	06/28/2010	Prefix Type: RBOC Switch Name: OAKBROOK Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: LBRDILLM20T 🔧 Explore Switch(CLLI: OKBRILOADS0))
630-537 is split into 1,000-number blocks - detail below
630-537-2XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	HINSDALE	OKBRILOADS0	07/02/2010	Prefix Type: RBOC Switch Name: OAKBROOK Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: LBRDILLM20T 🔧 Explore Switch(CLLI: OKBRILOADS0))
630-537-3XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	HINSDALE	OKBRILOADS0	07/02/2010	Prefix Type: RBOC Switch Name: OAKBROOK Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: LBRDILLM20T 🔧 Explore Switch(CLLI: OKBRILOADS0))
630-537-4XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	HINSDALE	OKBRILOADS0	07/02/2010	Prefix Type: RBOC Switch Name: OAKBROOK Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: LBRDILLM20T 🔧 Explore Switch(CLLI: OKBRILOADS0))
630-537-5XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	HINSDALE	OKBRILOADS0	07/02/2010	Prefix Type: RBOC Switch Name: OAKBROOK Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: LBRDILLM20T 🔧 Explore Switch(CLLI: OKBRILOADS0))
630-537-6XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	HINSDALE	OKBRILOADS0	07/02/2010	Prefix Type: RBOC Switch Name: OAKBROOK Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: LBRDILLM20T 🔧 Explore Switch(CLLI: OKBRILOADS0))
630-539	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	ROSELLE	RSLLILRZDS0	00/00/0000	Prefix Type: RBOC Switch Name: ROSELLE Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILNE20T 🔧 Explore Switch(CLLI: RSLLILRZDS0))
630-539 is split into 1,000-number blocks - detail below
630-539-0XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	ROSELLE	RSLLILRZDS0	N/A	Prefix Type: RBOC Switch Name: ROSELLE Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILNE20T 🔧 Explore Switch(CLLI: RSLLILRZDS0))
630-539-1XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	ROSELLE	RSLLILRZDS0	N/A	Prefix Type: RBOC Switch Name: ROSELLE Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILNE20T 🔧 Explore Switch(CLLI: RSLLILRZDS0))
630-539-2XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	ROSELLE	RSLLILRZDS0	N/A	Prefix Type: RBOC Switch Name: ROSELLE Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILNE20T 🔧 Explore Switch(CLLI: RSLLILRZDS0))
630-539-3XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	ROSELLE	RSLLILRZDS0	N/A	Prefix Type: RBOC Switch Name: ROSELLE Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILNE20T 🔧 Explore Switch(CLLI: RSLLILRZDS0))
630-539-4XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	ROSELLE	RSLLILRZDS0	N/A	Prefix Type: RBOC Switch Name: ROSELLE Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILNE20T 🔧 Explore Switch(CLLI: RSLLILRZDS0))
630-539-5XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	ROSELLE	RSLLILRZDS0	N/A	Prefix Type: RBOC Switch Name: ROSELLE Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILNE20T 🔧 Explore Switch(CLLI: RSLLILRZDS0))
630-539-6XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	ROSELLE	RSLLILRZDS0	N/A	Prefix Type: RBOC Switch Name: ROSELLE Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILNE20T 🔧 Explore Switch(CLLI: RSLLILRZDS0))
630-539-7XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	ROSELLE	RSLLILRZDS0	N/A	Prefix Type: RBOC Switch Name: ROSELLE Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILNE20T 🔧 Explore Switch(CLLI: RSLLILRZDS0))
630-539-8XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	ROSELLE	RSLLILRZDS0	N/A	Prefix Type: RBOC Switch Name: ROSELLE Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILNE20T 🔧 Explore Switch(CLLI: RSLLILRZDS0))
630-540	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	BARTLETT	BRTLILBTDS0	00/00/0000	Prefix Type: RBOC Switch Name: BARTLETT Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILNE20T 🔧 Explore Switch(CLLI: BRTLILBTDS0))
630-540 is split into 1,000-number blocks - detail below
630-540-0XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	BARTLETT	BRTLILBTDS0	N/A	Prefix Type: RBOC Switch Name: BARTLETT Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILNE20T 🔧 Explore Switch(CLLI: BRTLILBTDS0))
630-540-1XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	BARTLETT	BRTLILBTDS0	N/A	Prefix Type: RBOC Switch Name: BARTLETT Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILNE20T 🔧 Explore Switch(CLLI: BRTLILBTDS0))
630-540-2XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	BARTLETT	BRTLILBTDS0	N/A	Prefix Type: RBOC Switch Name: BARTLETT Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILNE20T 🔧 Explore Switch(CLLI: BRTLILBTDS0))
630-540-4XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	BARTLETT	BRTLILBTDS0	N/A	Prefix Type: RBOC Switch Name: BARTLETT Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILNE20T 🔧 Explore Switch(CLLI: BRTLILBTDS0))
630-540-5XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	BARTLETT	BRTLILBTDS0	N/A	Prefix Type: RBOC Switch Name: BARTLETT Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILNE20T 🔧 Explore Switch(CLLI: BRTLILBTDS0))
630-540-7XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	BARTLETT	BRTLILBTDS0	N/A	Prefix Type: RBOC Switch Name: BARTLETT Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILNE20T 🔧 Explore Switch(CLLI: BRTLILBTDS0))
630-540-9XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	BARTLETT	BRTLILBTDS0	N/A	Prefix Type: RBOC Switch Name: BARTLETT Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILNE20T 🔧 Explore Switch(CLLI: BRTLILBTDS0))
630-543	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	ELMHURST	LBRDILLMDS1	00/00/0000	Prefix Type: RBOC Switch Name: LOMBARD MAIN DS1 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: LBRDILLM20T 🔧 Explore Switch(CLLI: LBRDILLMDS1))
630-545	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	GLEN ELLYN	GLELILGEDS0	00/00/0000	Prefix Type: RBOC Switch Name: GLEN ELLYN Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: NCHCILNC20T 🔧 Explore Switch(CLLI: GLELILGEDS0))
630-548	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	NAPERVILLE	NPVLILNADS0	00/00/0000	Prefix Type: RBOC Switch Name: NAPERVILLE NA Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: LBRDILLM20T 🔧 Explore Switch(CLLI: NPVLILNADS0))
630-551	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	OSWEGO	OSWGILOSDS0	00/00/0000	Prefix Type: RBOC Switch Name: OSWEGO Switch Type: EWSD LATA: Chicago IL METRO (358) Tandem: LBRDILLM20T 🔧 Explore Switch(CLLI: OSWGILOSDS0))
630-551 is split into 1,000-number blocks - detail below
630-551-0XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	OSWEGO	OSWGILOSDS0	N/A	Prefix Type: RBOC Switch Name: OSWEGO Switch Type: EWSD LATA: Chicago IL METRO (358) Tandem: LBRDILLM20T 🔧 Explore Switch(CLLI: OSWGILOSDS0))
630-551-1XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	OSWEGO	OSWGILOSDS0	N/A	Prefix Type: RBOC Switch Name: OSWEGO Switch Type: EWSD LATA: Chicago IL METRO (358) Tandem: LBRDILLM20T 🔧 Explore Switch(CLLI: OSWGILOSDS0))
630-551-2XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	OSWEGO	OSWGILOSDS0	N/A	Prefix Type: RBOC Switch Name: OSWEGO Switch Type: EWSD LATA: Chicago IL METRO (358) Tandem: LBRDILLM20T 🔧 Explore Switch(CLLI: OSWGILOSDS0))
630-551-3XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	OSWEGO	OSWGILOSDS0	N/A	Prefix Type: RBOC Switch Name: OSWEGO Switch Type: EWSD LATA: Chicago IL METRO (358) Tandem: LBRDILLM20T 🔧 Explore Switch(CLLI: OSWGILOSDS0))
630-551-4XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	OSWEGO	OSWGILOSDS0	N/A	Prefix Type: RBOC Switch Name: OSWEGO Switch Type: EWSD LATA: Chicago IL METRO (358) Tandem: LBRDILLM20T 🔧 Explore Switch(CLLI: OSWGILOSDS0))
630-551-7XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	OSWEGO	OSWGILOSDS0	11/23/2005	Prefix Type: RBOC Switch Name: OSWEGO Switch Type: EWSD LATA: Chicago IL METRO (358) Tandem: LBRDILLM20T 🔧 Explore Switch(CLLI: OSWGILOSDS0))
630-552	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	PLANO	PLANILPORS0	00/00/0000	Prefix Type: RBOC Switch Name: PLANO Switch Type: N/A LATA: Chicago IL METRO (358) Tandem: LBRDILLM20T 🔧 Explore Switch(CLLI: PLANILPORS0))
630-552 is split into 1,000-number blocks - detail below
630-552-0XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	PLANO	PLANILPORS0	N/A	Prefix Type: RBOC Switch Name: PLANO Switch Type: N/A LATA: Chicago IL METRO (358) Tandem: LBRDILLM20T 🔧 Explore Switch(CLLI: PLANILPORS0))
630-552-1XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	PLANO	PLANILPORS0	N/A	Prefix Type: RBOC Switch Name: PLANO Switch Type: N/A LATA: Chicago IL METRO (358) Tandem: LBRDILLM20T 🔧 Explore Switch(CLLI: PLANILPORS0))
630-552-2XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	PLANO	PLANILPORS0	N/A	Prefix Type: RBOC Switch Name: PLANO Switch Type: N/A LATA: Chicago IL METRO (358) Tandem: LBRDILLM20T 🔧 Explore Switch(CLLI: PLANILPORS0))
630-552-3XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	PLANO	PLANILPORS0	N/A	Prefix Type: RBOC Switch Name: PLANO Switch Type: N/A LATA: Chicago IL METRO (358) Tandem: LBRDILLM20T 🔧 Explore Switch(CLLI: PLANILPORS0))
630-552-4XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	PLANO	PLANILPORS0	N/A	Prefix Type: RBOC Switch Name: PLANO Switch Type: N/A LATA: Chicago IL METRO (358) Tandem: LBRDILLM20T 🔧 Explore Switch(CLLI: PLANILPORS0))
630-552-7XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	PLANO	PLANILPORS0	N/A	Prefix Type: RBOC Switch Name: PLANO Switch Type: N/A LATA: Chicago IL METRO (358) Tandem: LBRDILLM20T 🔧 Explore Switch(CLLI: PLANILPORS0))
630-552-8XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	PLANO	PLANILPORS0	N/A	Prefix Type: RBOC Switch Name: PLANO Switch Type: N/A LATA: Chicago IL METRO (358) Tandem: LBRDILLM20T 🔧 Explore Switch(CLLI: PLANILPORS0))
630-552-9XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	PLANO	PLANILPORS0	N/A	Prefix Type: RBOC Switch Name: PLANO Switch Type: N/A LATA: Chicago IL METRO (358) Tandem: LBRDILLM20T 🔧 Explore Switch(CLLI: PLANILPORS0))
630-553	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	YORKVILLE	YRVLILYORS0	00/00/0000	Prefix Type: RBOC Switch Name: YORKVILLE Switch Type: N/A LATA: Chicago IL METRO (358) Tandem: LBRDILLM20T 🔧 Explore Switch(CLLI: YRVLILYORS0))
630-554	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	OSWEGO	OSWGILOSDS0	00/00/0000	Prefix Type: RBOC Switch Name: OSWEGO Switch Type: EWSD LATA: Chicago IL METRO (358) Tandem: LBRDILLM20T 🔧 Explore Switch(CLLI: OSWGILOSDS0))
630-556	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	BIG ROCK	BGRKILBGRS0	00/00/0000	Prefix Type: RBOC Switch Name: BIG ROCK Switch Type: N/A LATA: Chicago IL METRO (358) Tandem: LBRDILLM20T 🔧 Explore Switch(CLLI: BGRKILBGRS0))
630-556 is split into 1,000-number blocks - detail below
630-556-3XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	BIG ROCK	BGRKILBGRS0	N/A	Prefix Type: RBOC Switch Name: BIG ROCK Switch Type: N/A LATA: Chicago IL METRO (358) Tandem: LBRDILLM20T 🔧 Explore Switch(CLLI: BGRKILBGRS0))
630-556-4XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	BIG ROCK	BGRKILBGRS0	N/A	Prefix Type: RBOC Switch Name: BIG ROCK Switch Type: N/A LATA: Chicago IL METRO (358) Tandem: LBRDILLM20T 🔧 Explore Switch(CLLI: BGRKILBGRS0))
630-556-9XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	BIG ROCK	BGRKILBGRS0	N/A	Prefix Type: RBOC Switch Name: BIG ROCK Switch Type: N/A LATA: Chicago IL METRO (358) Tandem: LBRDILLM20T 🔧 Explore Switch(CLLI: BGRKILBGRS0))
630-557	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	KANEVILLE	KAVLILKARS0	00/00/0000	Prefix Type: RBOC Switch Name: KANEVILLE Switch Type: N/A LATA: Chicago IL METRO (358) Tandem: LBRDILLM20T 🔧 Explore Switch(CLLI: KAVLILKARS0))
630-557 is split into 1,000-number blocks - detail below
630-557-0XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	KANEVILLE	KAVLILKARS0	N/A	Prefix Type: RBOC Switch Name: KANEVILLE Switch Type: N/A LATA: Chicago IL METRO (358) Tandem: LBRDILLM20T 🔧 Explore Switch(CLLI: KAVLILKARS0))
630-557-2XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	KANEVILLE	KAVLILKARS0	N/A	Prefix Type: RBOC Switch Name: KANEVILLE Switch Type: N/A LATA: Chicago IL METRO (358) Tandem: LBRDILLM20T 🔧 Explore Switch(CLLI: KAVLILKARS0))
630-562	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	W CHICAGO	WCHCILWCDS0	00/00/0000	Prefix Type: RBOC Switch Name: WEST CHICAGO Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: NCHCILNC20T 🔧 Explore Switch(CLLI: WCHCILWCDS0))
630-562 is split into 1,000-number blocks - detail below
630-562-0XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	W CHICAGO	WCHCILWCDS0	N/A	Prefix Type: RBOC Switch Name: WEST CHICAGO Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: NCHCILNC20T 🔧 Explore Switch(CLLI: WCHCILWCDS0))
630-562-1XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	W CHICAGO	WCHCILWCDS0	N/A	Prefix Type: RBOC Switch Name: WEST CHICAGO Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: NCHCILNC20T 🔧 Explore Switch(CLLI: WCHCILWCDS0))
630-562-2XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	W CHICAGO	WCHCILWCDS0	N/A	Prefix Type: RBOC Switch Name: WEST CHICAGO Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: NCHCILNC20T 🔧 Explore Switch(CLLI: WCHCILWCDS0))
630-562-3XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	W CHICAGO	WCHCILWCDS0	N/A	Prefix Type: RBOC Switch Name: WEST CHICAGO Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: NCHCILNC20T 🔧 Explore Switch(CLLI: WCHCILWCDS0))
630-562-4XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	W CHICAGO	WCHCILWCDS0	N/A	Prefix Type: RBOC Switch Name: WEST CHICAGO Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: NCHCILNC20T 🔧 Explore Switch(CLLI: WCHCILWCDS0))
630-562-5XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	W CHICAGO	WCHCILWCDS0	N/A	Prefix Type: RBOC Switch Name: WEST CHICAGO Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: NCHCILNC20T 🔧 Explore Switch(CLLI: WCHCILWCDS0))
630-562-7XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	W CHICAGO	WCHCILWCDS0	N/A	Prefix Type: RBOC Switch Name: WEST CHICAGO Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: NCHCILNC20T 🔧 Explore Switch(CLLI: WCHCILWCDS0))
630-562-8XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	W CHICAGO	WCHCILWCDS0	N/A	Prefix Type: RBOC Switch Name: WEST CHICAGO Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: NCHCILNC20T 🔧 Explore Switch(CLLI: WCHCILWCDS0))
630-562-9XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	W CHICAGO	WCHCILWCDS0	N/A	Prefix Type: RBOC Switch Name: WEST CHICAGO Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: NCHCILNC20T 🔧 Explore Switch(CLLI: WCHCILWCDS0))
630-570 is split into 1,000-number blocks - detail below
630-570-3XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	HINSDALE	HNDLILHIDS0	09/26/2002	Prefix Type: RBOC Switch Name: HINSDALE Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: LBRDILLM20T 🔧 Explore Switch(CLLI: HNDLILHIDS0))
630-570-8XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	HINSDALE	HNDLILHIDS0	09/26/2002	Prefix Type: RBOC Switch Name: HINSDALE Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: LBRDILLM20T 🔧 Explore Switch(CLLI: HNDLILHIDS0))
630-571	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	HINSDALE	OKBRILOADS0	00/00/0000	Prefix Type: RBOC Switch Name: OAKBROOK Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: LBRDILLM20T 🔧 Explore Switch(CLLI: OKBRILOADS0))
630-572	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	HINSDALE	OKBRILOADS0	00/00/0000	Prefix Type: RBOC Switch Name: OAKBROOK Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: LBRDILLM20T 🔧 Explore Switch(CLLI: OKBRILOADS0))
630-573	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	HINSDALE	OKBRILOADS0	00/00/0000	Prefix Type: RBOC Switch Name: OAKBROOK Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: LBRDILLM20T 🔧 Explore Switch(CLLI: OKBRILOADS0))
630-574	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	HINSDALE	OKBRILOADS0	00/00/0000	Prefix Type: RBOC Switch Name: OAKBROOK Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: LBRDILLM20T 🔧 Explore Switch(CLLI: OKBRILOADS0))
630-574 is split into 1,000-number blocks - detail below
630-574-0XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	HINSDALE	OKBRILOADS0	N/A	Prefix Type: RBOC Switch Name: OAKBROOK Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: LBRDILLM20T 🔧 Explore Switch(CLLI: OKBRILOADS0))
630-574-1XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	HINSDALE	OKBRILOADS0	N/A	Prefix Type: RBOC Switch Name: OAKBROOK Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: LBRDILLM20T 🔧 Explore Switch(CLLI: OKBRILOADS0))
630-574-2XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	HINSDALE	OKBRILOADS0	N/A	Prefix Type: RBOC Switch Name: OAKBROOK Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: LBRDILLM20T 🔧 Explore Switch(CLLI: OKBRILOADS0))
630-574-3XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	HINSDALE	OKBRILOADS0	N/A	Prefix Type: RBOC Switch Name: OAKBROOK Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: LBRDILLM20T 🔧 Explore Switch(CLLI: OKBRILOADS0))
630-574-4XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	HINSDALE	OKBRILOADS0	N/A	Prefix Type: RBOC Switch Name: OAKBROOK Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: LBRDILLM20T 🔧 Explore Switch(CLLI: OKBRILOADS0))
630-574-5XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	HINSDALE	OKBRILOADS0	N/A	Prefix Type: RBOC Switch Name: OAKBROOK Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: LBRDILLM20T 🔧 Explore Switch(CLLI: OKBRILOADS0))
630-574-7XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	HINSDALE	OKBRILOADS0	N/A	Prefix Type: RBOC Switch Name: OAKBROOK Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: LBRDILLM20T 🔧 Explore Switch(CLLI: OKBRILOADS0))
630-574-8XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	HINSDALE	OKBRILOADS0	N/A	Prefix Type: RBOC Switch Name: OAKBROOK Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: LBRDILLM20T 🔧 Explore Switch(CLLI: OKBRILOADS0))
630-574-9XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	HINSDALE	OKBRILOADS0	N/A	Prefix Type: RBOC Switch Name: OAKBROOK Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: LBRDILLM20T 🔧 Explore Switch(CLLI: OKBRILOADS0))
630-575	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	HINSDALE	OKBRILOADS0	00/00/0000	Prefix Type: RBOC Switch Name: OAKBROOK Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: LBRDILLM20T 🔧 Explore Switch(CLLI: OKBRILOADS0))
630-576 is split into 1,000-number blocks - detail below
630-576-2XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	LOMBARD	LBRDILLMDS1	06/27/2000	Prefix Type: RBOC Switch Name: LOMBARD MAIN DS1 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: LBRDILLM20T 🔧 Explore Switch(CLLI: LBRDILLMDS1))
630-576-6XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	LOMBARD	LBRDILLMDS0	01/16/2001	Prefix Type: RBOC Switch Name: LOMBARD MAIN DS0 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: LBRDILLM20T 🔧 Explore Switch(CLLI: LBRDILLMDS0))
630-576-7XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	LOMBARD	LBRDILLMDS0	01/16/2001	Prefix Type: RBOC Switch Name: LOMBARD MAIN DS0 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: LBRDILLM20T 🔧 Explore Switch(CLLI: LBRDILLMDS0))
630-576-8XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	LOMBARD	LBRDILLMDS0	01/16/2001	Prefix Type: RBOC Switch Name: LOMBARD MAIN DS0 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: LBRDILLM20T 🔧 Explore Switch(CLLI: LBRDILLMDS0))
630-577	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	NAPERVILLE	NPVLILNEDS0	00/00/0000	Prefix Type: RBOC Switch Name: NAPERVILLE NE Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: LBRDILLM20T 🔧 Explore Switch(CLLI: NPVLILNEDS0))
630-577 is split into 1,000-number blocks - detail below
630-577-0XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	NAPERVILLE	NPVLILNEDS0	N/A	Prefix Type: RBOC Switch Name: NAPERVILLE NE Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: LBRDILLM20T 🔧 Explore Switch(CLLI: NPVLILNEDS0))
630-577-1XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	NAPERVILLE	NPVLILNEDS0	N/A	Prefix Type: RBOC Switch Name: NAPERVILLE NE Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: LBRDILLM20T 🔧 Explore Switch(CLLI: NPVLILNEDS0))
630-577-2XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	NAPERVILLE	NPVLILNEDS0	N/A	Prefix Type: RBOC Switch Name: NAPERVILLE NE Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: LBRDILLM20T 🔧 Explore Switch(CLLI: NPVLILNEDS0))
630-577-3XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	NAPERVILLE	NPVLILNEDS0	N/A	Prefix Type: RBOC Switch Name: NAPERVILLE NE Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: LBRDILLM20T 🔧 Explore Switch(CLLI: NPVLILNEDS0))
630-577-4XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	NAPERVILLE	NPVLILNEDS0	N/A	Prefix Type: RBOC Switch Name: NAPERVILLE NE Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: LBRDILLM20T 🔧 Explore Switch(CLLI: NPVLILNEDS0))
630-577-5XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	NAPERVILLE	NPVLILNEDS0	N/A	Prefix Type: RBOC Switch Name: NAPERVILLE NE Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: LBRDILLM20T 🔧 Explore Switch(CLLI: NPVLILNEDS0))
630-577-6XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	NAPERVILLE	NPVLILNEDS0	N/A	Prefix Type: RBOC Switch Name: NAPERVILLE NE Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: LBRDILLM20T 🔧 Explore Switch(CLLI: NPVLILNEDS0))
630-577-8XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	NAPERVILLE	NPVLILNEDS0	N/A	Prefix Type: RBOC Switch Name: NAPERVILLE NE Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: LBRDILLM20T 🔧 Explore Switch(CLLI: NPVLILNEDS0))
630-577-9XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	NAPERVILLE	NPVLILNEDS0	N/A	Prefix Type: RBOC Switch Name: NAPERVILLE NE Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: LBRDILLM20T 🔧 Explore Switch(CLLI: NPVLILNEDS0))
630-579	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	NAPERVILLE	NPVLILNADS0	00/00/0000	Prefix Type: RBOC Switch Name: NAPERVILLE NA Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: LBRDILLM20T 🔧 Explore Switch(CLLI: NPVLILNADS0))
630-580 is split into 1,000-number blocks - detail below
630-580-2XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	WHEATON	WHTNILWHDS0	08/24/2004	Prefix Type: RBOC Switch Name: WHEATON DS0 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILNE20T 🔧 Explore Switch(CLLI: WHTNILWHDS0))
630-582	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	ROSELLE	RSLLILRZDS0	00/00/0000	Prefix Type: RBOC Switch Name: ROSELLE Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILNE20T 🔧 Explore Switch(CLLI: RSLLILRZDS0))
630-584	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	ST CHARLES	GENVILGNDS0	00/00/0000	Prefix Type: RBOC Switch Name: GENEVA Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILNE20T 🔧 Explore Switch(CLLI: GENVILGNDS0))
630-585	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	AURORA	AURRILAEDS0	00/00/0000	Prefix Type: RBOC Switch Name: AURORA EAST DS0 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: LBRDILLM20T 🔧 Explore Switch(CLLI: AURRILAEDS0))
630-586	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	HINSDALE	OKBRILOADS0	00/00/0000	Prefix Type: RBOC Switch Name: OAKBROOK Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: LBRDILLM20T 🔧 Explore Switch(CLLI: OKBRILOADS0))
630-586 is split into 1,000-number blocks - detail below
630-586-0XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	HINSDALE	OKBRILOADS0	N/A	Prefix Type: RBOC Switch Name: OAKBROOK Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: LBRDILLM20T 🔧 Explore Switch(CLLI: OKBRILOADS0))
630-586-1XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	HINSDALE	OKBRILOADS0	N/A	Prefix Type: RBOC Switch Name: OAKBROOK Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: LBRDILLM20T 🔧 Explore Switch(CLLI: OKBRILOADS0))
630-586-2XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	HINSDALE	OKBRILOADS0	N/A	Prefix Type: RBOC Switch Name: OAKBROOK Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: LBRDILLM20T 🔧 Explore Switch(CLLI: OKBRILOADS0))
630-586-3XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	HINSDALE	OKBRILOADS0	N/A	Prefix Type: RBOC Switch Name: OAKBROOK Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: LBRDILLM20T 🔧 Explore Switch(CLLI: OKBRILOADS0))
630-586-4XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	HINSDALE	OKBRILOADS0	N/A	Prefix Type: RBOC Switch Name: OAKBROOK Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: LBRDILLM20T 🔧 Explore Switch(CLLI: OKBRILOADS0))
630-586-5XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	HINSDALE	OKBRILOADS0	N/A	Prefix Type: RBOC Switch Name: OAKBROOK Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: LBRDILLM20T 🔧 Explore Switch(CLLI: OKBRILOADS0))
630-586-6XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	HINSDALE	OKBRILOADS0	N/A	Prefix Type: RBOC Switch Name: OAKBROOK Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: LBRDILLM20T 🔧 Explore Switch(CLLI: OKBRILOADS0))
630-586-8XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	HINSDALE	OKBRILOADS0	N/A	Prefix Type: RBOC Switch Name: OAKBROOK Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: LBRDILLM20T 🔧 Explore Switch(CLLI: OKBRILOADS0))
630-586-9XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	HINSDALE	OKBRILOADS0	N/A	Prefix Type: RBOC Switch Name: OAKBROOK Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: LBRDILLM20T 🔧 Explore Switch(CLLI: OKBRILOADS0))
630-587	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	ST CHARLES	GENVILGNDS0	00/00/0000	Prefix Type: RBOC Switch Name: GENEVA Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILNE20T 🔧 Explore Switch(CLLI: GENVILGNDS0))
630-588	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	WHEATON	WHTNILWHDS0	00/00/0000	Prefix Type: RBOC Switch Name: WHEATON DS0 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILNE20T 🔧 Explore Switch(CLLI: WHTNILWHDS0))
630-591	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILWB55T	00/00/0000	Prefix Type: RBOC Switch Name: CHCZ 1 Switch Type: N/A LATA: Chicago IL METRO (358) Tandem: N/A 🔧 Explore Switch(CLLI: CHCGILWB55T))
630-595	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	BENSENVL	BNSVILBVDS0	00/00/0000	Prefix Type: RBOC Switch Name: BENSENVILLE Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: NCHCILNC20T 🔧 Explore Switch(CLLI: BNSVILBVDS0))
630-598 is split into 1,000-number blocks - detail below
630-598-6XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	DOWNERSGRV	DWGVILDGDS0	06/29/2005	Prefix Type: RBOC Switch Name: DOWNERS GROVE DS0 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: LBRDILLM20T 🔧 Explore Switch(CLLI: DWGVILDGDS0))
630-598-7XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	DOWNERSGRV	DWGVILDGDS0	06/29/2005	Prefix Type: RBOC Switch Name: DOWNERS GROVE DS0 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: LBRDILLM20T 🔧 Explore Switch(CLLI: DWGVILDGDS0))
630-598-8XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	DOWNERSGRV	DWGVILDGDS0	06/29/2005	Prefix Type: RBOC Switch Name: DOWNERS GROVE DS0 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: LBRDILLM20T 🔧 Explore Switch(CLLI: DWGVILDGDS0))
630-603	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	ROSELLE	RSLLILRZDS0	00/00/0000	Prefix Type: RBOC Switch Name: ROSELLE Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILNE20T 🔧 Explore Switch(CLLI: RSLLILRZDS0))
630-612	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	ROSELLE	RSLLILRZDS0	00/00/0000	Prefix Type: RBOC Switch Name: ROSELLE Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILNE20T 🔧 Explore Switch(CLLI: RSLLILRZDS0))
630-616	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	BENSENVL	BNSVILBVDS0	00/00/0000	Prefix Type: RBOC Switch Name: BENSENVILLE Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: NCHCILNC20T 🔧 Explore Switch(CLLI: BNSVILBVDS0))
630-617	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	ELMHURST	EMHRILETDS0	00/00/0000	Prefix Type: RBOC Switch Name: ELMHURST Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: NCHCILNC20T 🔧 Explore Switch(CLLI: EMHRILETDS0))
630-617 is split into 1,000-number blocks - detail below
630-617-0XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	ELMHURST	EMHRILETDS0	N/A	Prefix Type: RBOC Switch Name: ELMHURST Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: NCHCILNC20T 🔧 Explore Switch(CLLI: EMHRILETDS0))
630-617-2XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	ELMHURST	EMHRILETDS0	N/A	Prefix Type: RBOC Switch Name: ELMHURST Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: NCHCILNC20T 🔧 Explore Switch(CLLI: EMHRILETDS0))
630-617-3XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	ELMHURST	EMHRILETDS0	N/A	Prefix Type: RBOC Switch Name: ELMHURST Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: NCHCILNC20T 🔧 Explore Switch(CLLI: EMHRILETDS0))
630-617-4XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	ELMHURST	EMHRILETDS0	N/A	Prefix Type: RBOC Switch Name: ELMHURST Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: NCHCILNC20T 🔧 Explore Switch(CLLI: EMHRILETDS0))
630-617-5XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	ELMHURST	EMHRILETDS0	N/A	Prefix Type: RBOC Switch Name: ELMHURST Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: NCHCILNC20T 🔧 Explore Switch(CLLI: EMHRILETDS0))
630-617-6XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	ELMHURST	EMHRILETDS0	N/A	Prefix Type: RBOC Switch Name: ELMHURST Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: NCHCILNC20T 🔧 Explore Switch(CLLI: EMHRILETDS0))
630-617-7XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	ELMHURST	EMHRILETDS0	N/A	Prefix Type: RBOC Switch Name: ELMHURST Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: NCHCILNC20T 🔧 Explore Switch(CLLI: EMHRILETDS0))
630-617-8XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	ELMHURST	EMHRILETDS0	N/A	Prefix Type: RBOC Switch Name: ELMHURST Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: NCHCILNC20T 🔧 Explore Switch(CLLI: EMHRILETDS0))
630-617-9XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	ELMHURST	EMHRILETDS0	N/A	Prefix Type: RBOC Switch Name: ELMHURST Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: NCHCILNC20T 🔧 Explore Switch(CLLI: EMHRILETDS0))
630-620	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	LOMBARD	LBRDILLMDS1	00/00/0000	Prefix Type: RBOC Switch Name: LOMBARD MAIN DS1 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: LBRDILLM20T 🔧 Explore Switch(CLLI: LBRDILLMDS1))
630-623	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	HINSDALE	OKBRILOADS0	00/00/0000	Prefix Type: RBOC Switch Name: OAKBROOK Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: LBRDILLM20T 🔧 Explore Switch(CLLI: OKBRILOADS0))
630-623 is split into 1,000-number blocks - detail below
630-623-0XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	HINSDALE	OKBRILOADS0	N/A	Prefix Type: RBOC Switch Name: OAKBROOK Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: LBRDILLM20T 🔧 Explore Switch(CLLI: OKBRILOADS0))
630-623-1XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	HINSDALE	OKBRILOADS0	N/A	Prefix Type: RBOC Switch Name: OAKBROOK Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: LBRDILLM20T 🔧 Explore Switch(CLLI: OKBRILOADS0))
630-623-2XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	HINSDALE	OKBRILOADS0	N/A	Prefix Type: RBOC Switch Name: OAKBROOK Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: LBRDILLM20T 🔧 Explore Switch(CLLI: OKBRILOADS0))
630-623-3XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	HINSDALE	OKBRILOADS0	N/A	Prefix Type: RBOC Switch Name: OAKBROOK Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: LBRDILLM20T 🔧 Explore Switch(CLLI: OKBRILOADS0))
630-623-4XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	HINSDALE	OKBRILOADS0	N/A	Prefix Type: RBOC Switch Name: OAKBROOK Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: LBRDILLM20T 🔧 Explore Switch(CLLI: OKBRILOADS0))
630-623-5XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	HINSDALE	OKBRILOADS0	N/A	Prefix Type: RBOC Switch Name: OAKBROOK Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: LBRDILLM20T 🔧 Explore Switch(CLLI: OKBRILOADS0))
630-623-6XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	HINSDALE	OKBRILOADS0	N/A	Prefix Type: RBOC Switch Name: OAKBROOK Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: LBRDILLM20T 🔧 Explore Switch(CLLI: OKBRILOADS0))
630-623-7XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	HINSDALE	OKBRILOADS0	N/A	Prefix Type: RBOC Switch Name: OAKBROOK Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: LBRDILLM20T 🔧 Explore Switch(CLLI: OKBRILOADS0))
630-623-8XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	HINSDALE	OKBRILOADS0	N/A	Prefix Type: RBOC Switch Name: OAKBROOK Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: LBRDILLM20T 🔧 Explore Switch(CLLI: OKBRILOADS0))
630-623-9XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	HINSDALE	OKBRILOADS0	N/A	Prefix Type: RBOC Switch Name: OAKBROOK Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: LBRDILLM20T 🔧 Explore Switch(CLLI: OKBRILOADS0))
630-627	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	LOMBARD	LBRDILLMDS1	00/00/0000	Prefix Type: RBOC Switch Name: LOMBARD MAIN DS1 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: LBRDILLM20T 🔧 Explore Switch(CLLI: LBRDILLMDS1))
630-628	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	ELMHURST	LBRDILLMDS1	00/00/0000	Prefix Type: RBOC Switch Name: LOMBARD MAIN DS1 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: LBRDILLM20T 🔧 Explore Switch(CLLI: LBRDILLMDS1))
630-629	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	LOMBARD	LBRDILLMDS1	00/00/0000	Prefix Type: RBOC Switch Name: LOMBARD MAIN DS1 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: LBRDILLM20T 🔧 Explore Switch(CLLI: LBRDILLMDS1))
630-633 is split into 1,000-number blocks - detail below
630-633-3XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	LEMONT	BGBKILBKDS0	05/28/2001	Prefix Type: RBOC Switch Name: BOLINGBROOK Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: LBRDILLM20T 🔧 Explore Switch(CLLI: BGBKILBKDS0))
630-636 is split into 1,000-number blocks - detail below
630-636-5XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	OSWEGO	OSWGILOSDS0	08/25/2006	Prefix Type: RBOC Switch Name: OSWEGO Switch Type: EWSD LATA: Chicago IL METRO (358) Tandem: LBRDILLM20T 🔧 Explore Switch(CLLI: OSWGILOSDS0))
630-637	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	NAPERVILLE	NPVLILNADS0	00/00/0000	Prefix Type: RBOC Switch Name: NAPERVILLE NA Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: LBRDILLM20T 🔧 Explore Switch(CLLI: NPVLILNADS0))
630-645	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	HINSDALE	OKBRILOADS0	00/00/0000	Prefix Type: RBOC Switch Name: OAKBROOK Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: LBRDILLM20T 🔧 Explore Switch(CLLI: OKBRILOADS0))
630-646	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	NAPERVILLE	NPVLILNADS0	00/00/0000	Prefix Type: RBOC Switch Name: NAPERVILLE NA Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: LBRDILLM20T 🔧 Explore Switch(CLLI: NPVLILNADS0))
630-646 is split into 1,000-number blocks - detail below
630-646-0XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	NAPERVILLE	NPVLILNADS0	N/A	Prefix Type: RBOC Switch Name: NAPERVILLE NA Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: LBRDILLM20T 🔧 Explore Switch(CLLI: NPVLILNADS0))
630-646-1XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	NAPERVILLE	NPVLILNADS0	N/A	Prefix Type: RBOC Switch Name: NAPERVILLE NA Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: LBRDILLM20T 🔧 Explore Switch(CLLI: NPVLILNADS0))
630-646-2XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	NAPERVILLE	NPVLILNADS0	N/A	Prefix Type: RBOC Switch Name: NAPERVILLE NA Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: LBRDILLM20T 🔧 Explore Switch(CLLI: NPVLILNADS0))
630-646-3XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	NAPERVILLE	NPVLILNADS0	N/A	Prefix Type: RBOC Switch Name: NAPERVILLE NA Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: LBRDILLM20T 🔧 Explore Switch(CLLI: NPVLILNADS0))
630-646-4XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	NAPERVILLE	NPVLILNADS0	N/A	Prefix Type: RBOC Switch Name: NAPERVILLE NA Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: LBRDILLM20T 🔧 Explore Switch(CLLI: NPVLILNADS0))
630-646-5XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	NAPERVILLE	NPVLILNADS0	N/A	Prefix Type: RBOC Switch Name: NAPERVILLE NA Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: LBRDILLM20T 🔧 Explore Switch(CLLI: NPVLILNADS0))
630-646-6XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	NAPERVILLE	NPVLILNADS0	N/A	Prefix Type: RBOC Switch Name: NAPERVILLE NA Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: LBRDILLM20T 🔧 Explore Switch(CLLI: NPVLILNADS0))
630-646-7XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	NAPERVILLE	NPVLILNADS0	N/A	Prefix Type: RBOC Switch Name: NAPERVILLE NA Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: LBRDILLM20T 🔧 Explore Switch(CLLI: NPVLILNADS0))
630-646-8XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	NAPERVILLE	NPVLILNADS0	N/A	Prefix Type: RBOC Switch Name: NAPERVILLE NA Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: LBRDILLM20T 🔧 Explore Switch(CLLI: NPVLILNADS0))
630-646-9XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	NAPERVILLE	NPVLILNADS0	N/A	Prefix Type: RBOC Switch Name: NAPERVILLE NA Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: LBRDILLM20T 🔧 Explore Switch(CLLI: NPVLILNADS0))
630-649	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	NAPERVILLE	NPVLILNEDS0	00/00/0000	Prefix Type: RBOC Switch Name: NAPERVILLE NE Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: LBRDILLM20T 🔧 Explore Switch(CLLI: NPVLILNEDS0))
630-649 is split into 1,000-number blocks - detail below
630-649-5XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	NAPERVILLE	NPVLILNEDS0	N/A	Prefix Type: RBOC Switch Name: NAPERVILLE NE Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: LBRDILLM20T 🔧 Explore Switch(CLLI: NPVLILNEDS0))
630-649-6XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	NAPERVILLE	NPVLILNEDS0	06/16/2000	Prefix Type: RBOC Switch Name: NAPERVILLE NE Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: LBRDILLM20T 🔧 Explore Switch(CLLI: NPVLILNEDS0))
630-649-7XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	NAPERVILLE	NPVLILNEDS0	06/16/2000	Prefix Type: RBOC Switch Name: NAPERVILLE NE Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: LBRDILLM20T 🔧 Explore Switch(CLLI: NPVLILNEDS0))
630-652	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	LOMBARD	LBRDILLMDS1	00/00/0000	Prefix Type: RBOC Switch Name: LOMBARD MAIN DS1 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: LBRDILLM20T 🔧 Explore Switch(CLLI: LBRDILLMDS1))
630-652 is split into 1,000-number blocks - detail below
630-652-0XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	LOMBARD	LBRDILLMDS1	N/A	Prefix Type: RBOC Switch Name: LOMBARD MAIN DS1 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: LBRDILLM20T 🔧 Explore Switch(CLLI: LBRDILLMDS1))
630-652-1XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	LOMBARD	LBRDILLMDS1	N/A	Prefix Type: RBOC Switch Name: LOMBARD MAIN DS1 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: LBRDILLM20T 🔧 Explore Switch(CLLI: LBRDILLMDS1))
630-652-2XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	LOMBARD	LBRDILLMDS1	N/A	Prefix Type: RBOC Switch Name: LOMBARD MAIN DS1 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: LBRDILLM20T 🔧 Explore Switch(CLLI: LBRDILLMDS1))
630-652-3XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	LOMBARD	LBRDILLMDS1	N/A	Prefix Type: RBOC Switch Name: LOMBARD MAIN DS1 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: LBRDILLM20T 🔧 Explore Switch(CLLI: LBRDILLMDS1))
630-652-4XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	LOMBARD	LBRDILLMDS1	N/A	Prefix Type: RBOC Switch Name: LOMBARD MAIN DS1 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: LBRDILLM20T 🔧 Explore Switch(CLLI: LBRDILLMDS1))
630-652-6XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	LOMBARD	LBRDILLMDS1	N/A	Prefix Type: RBOC Switch Name: LOMBARD MAIN DS1 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: LBRDILLM20T 🔧 Explore Switch(CLLI: LBRDILLMDS1))
630-652-7XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	LOMBARD	LBRDILLMDS1	N/A	Prefix Type: RBOC Switch Name: LOMBARD MAIN DS1 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: LBRDILLM20T 🔧 Explore Switch(CLLI: LBRDILLMDS1))
630-652-8XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	LOMBARD	LBRDILLMDS1	N/A	Prefix Type: RBOC Switch Name: LOMBARD MAIN DS1 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: LBRDILLM20T 🔧 Explore Switch(CLLI: LBRDILLMDS1))
630-652-9XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	LOMBARD	LBRDILLMDS1	N/A	Prefix Type: RBOC Switch Name: LOMBARD MAIN DS1 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: LBRDILLM20T 🔧 Explore Switch(CLLI: LBRDILLMDS1))
630-653	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	WHEATON	WHTNILWHDS0	00/00/0000	Prefix Type: RBOC Switch Name: WHEATON DS0 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILNE20T 🔧 Explore Switch(CLLI: WHTNILWHDS0))
630-654	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	HINSDALE	HNDLILHIDS0	00/00/0000	Prefix Type: RBOC Switch Name: HINSDALE Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: LBRDILLM20T 🔧 Explore Switch(CLLI: HNDLILHIDS0))
630-655	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	HINSDALE	HNDLILHIDS0	00/00/0000	Prefix Type: RBOC Switch Name: HINSDALE Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: LBRDILLM20T 🔧 Explore Switch(CLLI: HNDLILHIDS0))
630-657 is split into 1,000-number blocks - detail below
630-657-2XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	WARRENVL	WNVLILWVDS0	02/26/2001	Prefix Type: RBOC Switch Name: WARRENVILLE Switch Type: N/A LATA: Chicago IL METRO (358) Tandem: N/A 🔧 Explore Switch(CLLI: WNVLILWVDS0))
630-657-3XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	WARRENVL	WNVLILWVDS0	02/26/2001	Prefix Type: RBOC Switch Name: WARRENVILLE Switch Type: N/A LATA: Chicago IL METRO (358) Tandem: N/A 🔧 Explore Switch(CLLI: WNVLILWVDS0))
630-657-4XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	WARRENVL	WNVLILWVDS0	02/26/2001	Prefix Type: RBOC Switch Name: WARRENVILLE Switch Type: N/A LATA: Chicago IL METRO (358) Tandem: N/A 🔧 Explore Switch(CLLI: WNVLILWVDS0))
630-662	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	WESTERNSPG	LGRCILLGDS0	00/00/0000	Prefix Type: RBOC Switch Name: LA GRANGE DS0 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: JOLTILJO20T 🔧 Explore Switch(CLLI: LGRCILLGDS0))
630-662 is split into 1,000-number blocks - detail below
630-662-0XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	WESTERNSPG	LGRCILLGDS0	N/A	Prefix Type: RBOC Switch Name: LA GRANGE DS0 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: JOLTILJO20T 🔧 Explore Switch(CLLI: LGRCILLGDS0))
630-662-5XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	WESTERNSPG	LGRCILLGDS0	N/A	Prefix Type: RBOC Switch Name: LA GRANGE DS0 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: JOLTILJO20T 🔧 Explore Switch(CLLI: LGRCILLGDS0))
630-663	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	DOWNERSGRV	DWGVILDGDS0	00/00/0000	Prefix Type: RBOC Switch Name: DOWNERS GROVE DS0 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: LBRDILLM20T 🔧 Explore Switch(CLLI: DWGVILDGDS0))
630-665	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	WHEATON	WHTNILWHDS0	00/00/0000	Prefix Type: RBOC Switch Name: WHEATON DS0 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILNE20T 🔧 Explore Switch(CLLI: WHTNILWHDS0))
630-668	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	WHEATON	WHTNILWHDS0	00/00/0000	Prefix Type: RBOC Switch Name: WHEATON DS0 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILNE20T 🔧 Explore Switch(CLLI: WHTNILWHDS0))
630-671	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	ROSELLE	RSLLILRZDS0	00/00/0000	Prefix Type: RBOC Switch Name: ROSELLE Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILNE20T 🔧 Explore Switch(CLLI: RSLLILRZDS0))
630-671 is split into 1,000-number blocks - detail below
630-671-0XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	ROSELLE	RSLLILRZDS0	N/A	Prefix Type: RBOC Switch Name: ROSELLE Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILNE20T 🔧 Explore Switch(CLLI: RSLLILRZDS0))
630-671-1XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	ROSELLE	RSLLILRZDS0	N/A	Prefix Type: RBOC Switch Name: ROSELLE Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILNE20T 🔧 Explore Switch(CLLI: RSLLILRZDS0))
630-671-2XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	ROSELLE	RSLLILRZDS0	N/A	Prefix Type: RBOC Switch Name: ROSELLE Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILNE20T 🔧 Explore Switch(CLLI: RSLLILRZDS0))
630-671-3XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	ROSELLE	RSLLILRZDS0	N/A	Prefix Type: RBOC Switch Name: ROSELLE Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILNE20T 🔧 Explore Switch(CLLI: RSLLILRZDS0))
630-671-4XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	ROSELLE	RSLLILRZDS0	N/A	Prefix Type: RBOC Switch Name: ROSELLE Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILNE20T 🔧 Explore Switch(CLLI: RSLLILRZDS0))
630-671-5XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	ROSELLE	RSLLILRZDS0	N/A	Prefix Type: RBOC Switch Name: ROSELLE Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILNE20T 🔧 Explore Switch(CLLI: RSLLILRZDS0))
630-671-6XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	ROSELLE	RSLLILRZDS0	04/12/2000	Prefix Type: RBOC Switch Name: ROSELLE Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILNE20T 🔧 Explore Switch(CLLI: RSLLILRZDS0))
630-671-8XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	ROSELLE	RSLLILRZDS0	N/A	Prefix Type: RBOC Switch Name: ROSELLE Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILNE20T 🔧 Explore Switch(CLLI: RSLLILRZDS0))
630-671-9XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	ROSELLE	RSLLILRZDS0	N/A	Prefix Type: RBOC Switch Name: ROSELLE Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILNE20T 🔧 Explore Switch(CLLI: RSLLILRZDS0))
630-678	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	LOMBARD	LBRDILLMDS0	00/00/0000	Prefix Type: RBOC Switch Name: LOMBARD MAIN DS0 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: LBRDILLM20T 🔧 Explore Switch(CLLI: LBRDILLMDS0))
630-678 is split into 1,000-number blocks - detail below
630-678-0XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	LOMBARD	LBRDILLMDS0	N/A	Prefix Type: RBOC Switch Name: LOMBARD MAIN DS0 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: LBRDILLM20T 🔧 Explore Switch(CLLI: LBRDILLMDS0))
630-678-1XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	LOMBARD	LBRDILLMDS0	N/A	Prefix Type: RBOC Switch Name: LOMBARD MAIN DS0 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: LBRDILLM20T 🔧 Explore Switch(CLLI: LBRDILLMDS0))
630-678-2XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	LOMBARD	LBRDILLMDS0	N/A	Prefix Type: RBOC Switch Name: LOMBARD MAIN DS0 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: LBRDILLM20T 🔧 Explore Switch(CLLI: LBRDILLMDS0))
630-678-4XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	LOMBARD	LBRDILLMDS0	N/A	Prefix Type: RBOC Switch Name: LOMBARD MAIN DS0 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: LBRDILLM20T 🔧 Explore Switch(CLLI: LBRDILLMDS0))
630-678-6XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	LOMBARD	LBRDILLMDS0	N/A	Prefix Type: RBOC Switch Name: LOMBARD MAIN DS0 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: LBRDILLM20T 🔧 Explore Switch(CLLI: LBRDILLMDS0))
630-678-8XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	LOMBARD	LBRDILLMDS0	N/A	Prefix Type: RBOC Switch Name: LOMBARD MAIN DS0 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: LBRDILLM20T 🔧 Explore Switch(CLLI: LBRDILLMDS0))
630-678-9XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	LOMBARD	LBRDILLMDS0	N/A	Prefix Type: RBOC Switch Name: LOMBARD MAIN DS0 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: LBRDILLM20T 🔧 Explore Switch(CLLI: LBRDILLMDS0))
630-679	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	LEMONT	BGBKILBKDS0	00/00/0000	Prefix Type: RBOC Switch Name: BOLINGBROOK Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: LBRDILLM20T 🔧 Explore Switch(CLLI: BGBKILBKDS0))
630-681	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	WHEATON	WHTNILWHDS0	00/00/0000	Prefix Type: RBOC Switch Name: WHEATON DS0 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILNE20T 🔧 Explore Switch(CLLI: WHTNILWHDS0))
630-682	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	WHEATON	WHTNILWHDS0	00/00/0000	Prefix Type: RBOC Switch Name: WHEATON DS0 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILNE20T 🔧 Explore Switch(CLLI: WHTNILWHDS0))
630-684	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	HINSDALE	OKBRILOADS0	00/00/0000	Prefix Type: RBOC Switch Name: OAKBROOK Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: LBRDILLM20T 🔧 Explore Switch(CLLI: OKBRILOADS0))
630-690	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	WHEATON	WHTNILWHDS0	00/00/0000	Prefix Type: RBOC Switch Name: WHEATON DS0 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILNE20T 🔧 Explore Switch(CLLI: WHTNILWHDS0))
630-691	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	LOMBARD	LBRDILLMDS1	00/00/0000	Prefix Type: RBOC Switch Name: LOMBARD MAIN DS1 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: LBRDILLM20T 🔧 Explore Switch(CLLI: LBRDILLMDS1))
630-692	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	AURORA	AURRILAEDS0	00/00/0000	Prefix Type: RBOC Switch Name: AURORA EAST DS0 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: LBRDILLM20T 🔧 Explore Switch(CLLI: AURRILAEDS0))
630-692 is split into 1,000-number blocks - detail below
630-692-0XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	AURORA	AURRILAEDS0	N/A	Prefix Type: RBOC Switch Name: AURORA EAST DS0 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: LBRDILLM20T 🔧 Explore Switch(CLLI: AURRILAEDS0))
630-692-1XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	AURORA	AURRILAEDS0	N/A	Prefix Type: RBOC Switch Name: AURORA EAST DS0 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: LBRDILLM20T 🔧 Explore Switch(CLLI: AURRILAEDS0))
630-692-2XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	AURORA	AURRILAEDS0	N/A	Prefix Type: RBOC Switch Name: AURORA EAST DS0 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: LBRDILLM20T 🔧 Explore Switch(CLLI: AURRILAEDS0))
630-692-4XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	AURORA	AURRILAEDS0	N/A	Prefix Type: RBOC Switch Name: AURORA EAST DS0 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: LBRDILLM20T 🔧 Explore Switch(CLLI: AURRILAEDS0))
630-692-5XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	AURORA	AURRILAEDS0	N/A	Prefix Type: RBOC Switch Name: AURORA EAST DS0 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: LBRDILLM20T 🔧 Explore Switch(CLLI: AURRILAEDS0))
630-692-6XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	AURORA	AURRILAEDS0	N/A	Prefix Type: RBOC Switch Name: AURORA EAST DS0 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: LBRDILLM20T 🔧 Explore Switch(CLLI: AURRILAEDS0))
630-692-7XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	AURORA	AURRILAEDS0	N/A	Prefix Type: RBOC Switch Name: AURORA EAST DS0 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: LBRDILLM20T 🔧 Explore Switch(CLLI: AURRILAEDS0))
630-692-8XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	AURORA	AURRILAEDS0	N/A	Prefix Type: RBOC Switch Name: AURORA EAST DS0 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: LBRDILLM20T 🔧 Explore Switch(CLLI: AURRILAEDS0))
630-693	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	LOMBARD	LBRDILLMDS1	00/00/0000	Prefix Type: RBOC Switch Name: LOMBARD MAIN DS1 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: LBRDILLM20T 🔧 Explore Switch(CLLI: LBRDILLMDS1))
630-694	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	BENSENVL	BNSVILBVDS0	00/00/0000	Prefix Type: RBOC Switch Name: BENSENVILLE Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: NCHCILNC20T 🔧 Explore Switch(CLLI: BNSVILBVDS0))
630-705	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	LOMBARD	LBRDILLMDS1	00/00/0000	Prefix Type: RBOC Switch Name: LOMBARD MAIN DS1 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: LBRDILLM20T 🔧 Explore Switch(CLLI: LBRDILLMDS1))
630-706	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	HINSDALE	OKBRILOADS0	00/00/0000	Prefix Type: RBOC Switch Name: OAKBROOK Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: LBRDILLM20T 🔧 Explore Switch(CLLI: OKBRILOADS0))
630-706 is split into 1,000-number blocks - detail below
630-706-2XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	HINSDALE	OKBRILOADS0	N/A	Prefix Type: RBOC Switch Name: OAKBROOK Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: LBRDILLM20T 🔧 Explore Switch(CLLI: OKBRILOADS0))
630-706-3XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	HINSDALE	OKBRILOADS0	05/24/2000	Prefix Type: RBOC Switch Name: OAKBROOK Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: LBRDILLM20T 🔧 Explore Switch(CLLI: OKBRILOADS0))
630-706-4XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	HINSDALE	OKBRILOADS0	06/16/2000	Prefix Type: RBOC Switch Name: OAKBROOK Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: LBRDILLM20T 🔧 Explore Switch(CLLI: OKBRILOADS0))
630-706-5XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	HINSDALE	OKBRILOADS0	07/24/2000	Prefix Type: RBOC Switch Name: OAKBROOK Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: LBRDILLM20T 🔧 Explore Switch(CLLI: OKBRILOADS0))
630-713	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	NAPERVILLE	NPVLILNEDS0	00/00/0000	Prefix Type: RBOC Switch Name: NAPERVILLE NE Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: LBRDILLM20T 🔧 Explore Switch(CLLI: NPVLILNEDS0))
630-717	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	NAPERVILLE	NPVLILNADS0	00/00/0000	Prefix Type: RBOC Switch Name: NAPERVILLE NA Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: LBRDILLM20T 🔧 Explore Switch(CLLI: NPVLILNADS0))
630-718	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	NAPERVILLE	NPVLILNADS0	00/00/0000	Prefix Type: RBOC Switch Name: NAPERVILLE NA Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: LBRDILLM20T 🔧 Explore Switch(CLLI: NPVLILNADS0))
630-719	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	DOWNERSGRV	DWGVILDGDS1	00/00/0000	Prefix Type: RBOC Switch Name: DOWNERS GROVE DS1 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: LBRDILLM20T 🔧 Explore Switch(CLLI: DWGVILDGDS1))
630-722	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	HINSDALE	OKBRILOADS0	00/00/0000	Prefix Type: RBOC Switch Name: OAKBROOK Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: LBRDILLM20T 🔧 Explore Switch(CLLI: OKBRILOADS0))
630-723 is split into 1,000-number blocks - detail below
630-723-2XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	AURORA	AURRILARDS0	01/03/2001	Prefix Type: RBOC Switch Name: AURORA MAIN Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: LBRDILLM20T 🔧 Explore Switch(CLLI: AURRILARDS0))
630-724	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	DOWNERSGRV	DWGVILDGDS1	00/00/0000	Prefix Type: RBOC Switch Name: DOWNERS GROVE DS1 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: LBRDILLM20T 🔧 Explore Switch(CLLI: DWGVILDGDS1))
630-724 is split into 1,000-number blocks - detail below
630-724-0XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	DOWNERSGRV	DWGVILDGDS1	N/A	Prefix Type: RBOC Switch Name: DOWNERS GROVE DS1 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: LBRDILLM20T 🔧 Explore Switch(CLLI: DWGVILDGDS1))
630-724-1XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	DOWNERSGRV	DWGVILDGDS1	N/A	Prefix Type: RBOC Switch Name: DOWNERS GROVE DS1 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: LBRDILLM20T 🔧 Explore Switch(CLLI: DWGVILDGDS1))
630-724-2XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	DOWNERSGRV	DWGVILDGDS1	N/A	Prefix Type: RBOC Switch Name: DOWNERS GROVE DS1 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: LBRDILLM20T 🔧 Explore Switch(CLLI: DWGVILDGDS1))
630-724-3XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	DOWNERSGRV	DWGVILDGDS1	N/A	Prefix Type: RBOC Switch Name: DOWNERS GROVE DS1 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: LBRDILLM20T 🔧 Explore Switch(CLLI: DWGVILDGDS1))
630-724-4XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	DOWNERSGRV	DWGVILDGDS1	N/A	Prefix Type: RBOC Switch Name: DOWNERS GROVE DS1 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: LBRDILLM20T 🔧 Explore Switch(CLLI: DWGVILDGDS1))
630-724-6XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	DOWNERSGRV	DWGVILDGDS1	N/A	Prefix Type: RBOC Switch Name: DOWNERS GROVE DS1 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: LBRDILLM20T 🔧 Explore Switch(CLLI: DWGVILDGDS1))
630-724-8XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	DOWNERSGRV	DWGVILDGDS1	N/A	Prefix Type: RBOC Switch Name: DOWNERS GROVE DS1 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: LBRDILLM20T 🔧 Explore Switch(CLLI: DWGVILDGDS1))
630-724-9XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	DOWNERSGRV	DWGVILDGDS1	N/A	Prefix Type: RBOC Switch Name: DOWNERS GROVE DS1 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: LBRDILLM20T 🔧 Explore Switch(CLLI: DWGVILDGDS1))
630-725	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	DOWNERSGRV	DWGVILDGDS1	00/00/0000	Prefix Type: RBOC Switch Name: DOWNERS GROVE DS1 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: LBRDILLM20T 🔧 Explore Switch(CLLI: DWGVILDGDS1))
630-725 is split into 1,000-number blocks - detail below
630-725-1XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	DOWNERSGRV	DWGVILDGDS1	N/A	Prefix Type: RBOC Switch Name: DOWNERS GROVE DS1 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: LBRDILLM20T 🔧 Explore Switch(CLLI: DWGVILDGDS1))
630-725-2XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	DOWNERSGRV	DWGVILDGDS1	N/A	Prefix Type: RBOC Switch Name: DOWNERS GROVE DS1 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: LBRDILLM20T 🔧 Explore Switch(CLLI: DWGVILDGDS1))
630-725-3XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	DOWNERSGRV	DWGVILDGDS1	N/A	Prefix Type: RBOC Switch Name: DOWNERS GROVE DS1 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: LBRDILLM20T 🔧 Explore Switch(CLLI: DWGVILDGDS1))
630-725-4XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	DOWNERSGRV	DWGVILDGDS1	N/A	Prefix Type: RBOC Switch Name: DOWNERS GROVE DS1 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: LBRDILLM20T 🔧 Explore Switch(CLLI: DWGVILDGDS1))
630-725-5XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	DOWNERSGRV	DWGVILDGDS1	N/A	Prefix Type: RBOC Switch Name: DOWNERS GROVE DS1 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: LBRDILLM20T 🔧 Explore Switch(CLLI: DWGVILDGDS1))
630-725-6XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	DOWNERSGRV	DWGVILDGDS1	N/A	Prefix Type: RBOC Switch Name: DOWNERS GROVE DS1 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: LBRDILLM20T 🔧 Explore Switch(CLLI: DWGVILDGDS1))
630-725-7XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	DOWNERSGRV	DWGVILDGDS1	N/A	Prefix Type: RBOC Switch Name: DOWNERS GROVE DS1 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: LBRDILLM20T 🔧 Explore Switch(CLLI: DWGVILDGDS1))
630-725-9XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	DOWNERSGRV	DWGVILDGDS1	N/A	Prefix Type: RBOC Switch Name: DOWNERS GROVE DS1 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: LBRDILLM20T 🔧 Explore Switch(CLLI: DWGVILDGDS1))
630-734	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	HINSDALE	HNDLILHIDS0	00/00/0000	Prefix Type: RBOC Switch Name: HINSDALE Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: LBRDILLM20T 🔧 Explore Switch(CLLI: HNDLILHIDS0))
630-736	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	BARTLETT	BRTLILBTDS0	00/00/0000	Prefix Type: RBOC Switch Name: BARTLETT Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILNE20T 🔧 Explore Switch(CLLI: BRTLILBTDS0))
630-737	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	DOWNERSGRV	DWGVILDGDS1	00/00/0000	Prefix Type: RBOC Switch Name: DOWNERS GROVE DS1 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: LBRDILLM20T 🔧 Explore Switch(CLLI: DWGVILDGDS1))
630-737 is split into 1,000-number blocks - detail below
630-737-0XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	DOWNERSGRV	DWGVILDGDS1	N/A	Prefix Type: RBOC Switch Name: DOWNERS GROVE DS1 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: LBRDILLM20T 🔧 Explore Switch(CLLI: DWGVILDGDS1))
630-737-1XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	DOWNERSGRV	DWGVILDGDS1	N/A	Prefix Type: RBOC Switch Name: DOWNERS GROVE DS1 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: LBRDILLM20T 🔧 Explore Switch(CLLI: DWGVILDGDS1))
630-737-2XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	DOWNERSGRV	DWGVILDGDS1	N/A	Prefix Type: RBOC Switch Name: DOWNERS GROVE DS1 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: LBRDILLM20T 🔧 Explore Switch(CLLI: DWGVILDGDS1))
630-737-3XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	DOWNERSGRV	DWGVILDGDS1	N/A	Prefix Type: RBOC Switch Name: DOWNERS GROVE DS1 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: LBRDILLM20T 🔧 Explore Switch(CLLI: DWGVILDGDS1))
630-737-4XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	DOWNERSGRV	DWGVILDGDS1	N/A	Prefix Type: RBOC Switch Name: DOWNERS GROVE DS1 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: LBRDILLM20T 🔧 Explore Switch(CLLI: DWGVILDGDS1))
630-737-5XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	DOWNERSGRV	DWGVILDGDS1	N/A	Prefix Type: RBOC Switch Name: DOWNERS GROVE DS1 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: LBRDILLM20T 🔧 Explore Switch(CLLI: DWGVILDGDS1))
630-737-6XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	DOWNERSGRV	DWGVILDGDS1	N/A	Prefix Type: RBOC Switch Name: DOWNERS GROVE DS1 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: LBRDILLM20T 🔧 Explore Switch(CLLI: DWGVILDGDS1))
630-737-7XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	DOWNERSGRV	DWGVILDGDS1	N/A	Prefix Type: RBOC Switch Name: DOWNERS GROVE DS1 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: LBRDILLM20T 🔧 Explore Switch(CLLI: DWGVILDGDS1))
630-737-8XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	DOWNERSGRV	DWGVILDGDS1	N/A	Prefix Type: RBOC Switch Name: DOWNERS GROVE DS1 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: LBRDILLM20T 🔧 Explore Switch(CLLI: DWGVILDGDS1))
630-739	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	LEMONT	LEMTILLNDS0	00/00/0000	Prefix Type: RBOC Switch Name: LEMONT NORTH Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: LBRDILLM20T 🔧 Explore Switch(CLLI: LEMTILLNDS0))
630-752	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	WHEATON	WHTNILWHRS0	00/00/0000	Prefix Type: RBOC Switch Name: WHEATON RS0 Switch Type: N/A LATA: Chicago IL METRO (358) Tandem: LBRDILLM20T 🔧 Explore Switch(CLLI: WHTNILWHRS0))
630-753	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	NAPERVILLE	NPVLILNADS0	00/00/0000	Prefix Type: RBOC Switch Name: NAPERVILLE NA Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: LBRDILLM20T 🔧 Explore Switch(CLLI: NPVLILNADS0))
630-758	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	ELMHURST	EMHRILETDS0	00/00/0000	Prefix Type: RBOC Switch Name: ELMHURST Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: NCHCILNC20T 🔧 Explore Switch(CLLI: EMHRILETDS0))
630-759	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	LEMONT	BGBKILBKDS0	00/00/0000	Prefix Type: RBOC Switch Name: BOLINGBROOK Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: LBRDILLM20T 🔧 Explore Switch(CLLI: BGBKILBKDS0))
630-760 is split into 1,000-number blocks - detail below
630-760-3XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	ITASCA	BNSVILBVDS0	05/23/2002	Prefix Type: RBOC Switch Name: BENSENVILLE Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: NCHCILNC20T 🔧 Explore Switch(CLLI: BNSVILBVDS0))
630-760-4XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	ITASCA	BNSVILBVDS0	05/23/2002	Prefix Type: RBOC Switch Name: BENSENVILLE Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: NCHCILNC20T 🔧 Explore Switch(CLLI: BNSVILBVDS0))
630-761	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	BATAVIA	GENVILGNDS0	00/00/0000	Prefix Type: RBOC Switch Name: GENEVA Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILNE20T 🔧 Explore Switch(CLLI: GENVILGNDS0))
630-761 is split into 1,000-number blocks - detail below
630-761-0XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	BATAVIA	GENVILGNDS0	N/A	Prefix Type: RBOC Switch Name: GENEVA Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILNE20T 🔧 Explore Switch(CLLI: GENVILGNDS0))
630-761-1XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	BATAVIA	GENVILGNDS0	N/A	Prefix Type: RBOC Switch Name: GENEVA Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILNE20T 🔧 Explore Switch(CLLI: GENVILGNDS0))
630-761-2XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	BATAVIA	GENVILGNDS0	N/A	Prefix Type: RBOC Switch Name: GENEVA Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILNE20T 🔧 Explore Switch(CLLI: GENVILGNDS0))
630-761-3XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	BATAVIA	GENVILGNDS0	N/A	Prefix Type: RBOC Switch Name: GENEVA Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILNE20T 🔧 Explore Switch(CLLI: GENVILGNDS0))
630-761-4XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	BATAVIA	GENVILGNDS0	N/A	Prefix Type: RBOC Switch Name: GENEVA Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILNE20T 🔧 Explore Switch(CLLI: GENVILGNDS0))
630-761-6XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	BATAVIA	GENVILGNDS0	N/A	Prefix Type: RBOC Switch Name: GENEVA Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILNE20T 🔧 Explore Switch(CLLI: GENVILGNDS0))
630-761-8XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	BATAVIA	GENVILGNDS0	N/A	Prefix Type: RBOC Switch Name: GENEVA Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILNE20T 🔧 Explore Switch(CLLI: GENVILGNDS0))
630-761-9XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	BATAVIA	GENVILGNDS0	N/A	Prefix Type: RBOC Switch Name: GENEVA Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILNE20T 🔧 Explore Switch(CLLI: GENVILGNDS0))
630-762	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	ST CHARLES	GENVILGNDS0	00/00/0000	Prefix Type: RBOC Switch Name: GENEVA Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILNE20T 🔧 Explore Switch(CLLI: GENVILGNDS0))
630-765 is split into 1,000-number blocks - detail below
630-765-6XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	WHEATON	WHTNILWHDS0	04/14/2008	Prefix Type: RBOC Switch Name: WHEATON DS0 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILNE20T 🔧 Explore Switch(CLLI: WHTNILWHDS0))
630-765-8XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	WHEATON	WHTNILWHDS0	04/14/2008	Prefix Type: RBOC Switch Name: WHEATON DS0 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILNE20T 🔧 Explore Switch(CLLI: WHTNILWHDS0))
630-766	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	BENSENVL	BNSVILBVDS0	00/00/0000	Prefix Type: RBOC Switch Name: BENSENVILLE Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: NCHCILNC20T 🔧 Explore Switch(CLLI: BNSVILBVDS0))
630-769	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	DOWNERSGRV	DWGVILDGDS0	00/00/0000	Prefix Type: RBOC Switch Name: DOWNERS GROVE DS0 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: LBRDILLM20T 🔧 Explore Switch(CLLI: DWGVILDGDS0))
630-771	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	LEMONT	BGBKILBKDS0	00/00/0000	Prefix Type: RBOC Switch Name: BOLINGBROOK Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: LBRDILLM20T 🔧 Explore Switch(CLLI: BGBKILBKDS0))
630-771 is split into 1,000-number blocks - detail below
630-771-0XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	LEMONT	BGBKILBKDS0	N/A	Prefix Type: RBOC Switch Name: BOLINGBROOK Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: LBRDILLM20T 🔧 Explore Switch(CLLI: BGBKILBKDS0))
630-771-1XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	LEMONT	BGBKILBKDS0	N/A	Prefix Type: RBOC Switch Name: BOLINGBROOK Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: LBRDILLM20T 🔧 Explore Switch(CLLI: BGBKILBKDS0))
630-771-2XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	LEMONT	BGBKILBKDS0	N/A	Prefix Type: RBOC Switch Name: BOLINGBROOK Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: LBRDILLM20T 🔧 Explore Switch(CLLI: BGBKILBKDS0))
630-771-3XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	LEMONT	BGBKILBKDS0	N/A	Prefix Type: RBOC Switch Name: BOLINGBROOK Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: LBRDILLM20T 🔧 Explore Switch(CLLI: BGBKILBKDS0))
630-771-4XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	LEMONT	BGBKILBKDS0	N/A	Prefix Type: RBOC Switch Name: BOLINGBROOK Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: LBRDILLM20T 🔧 Explore Switch(CLLI: BGBKILBKDS0))
630-771-6XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	LEMONT	BGBKILBKDS0	N/A	Prefix Type: RBOC Switch Name: BOLINGBROOK Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: LBRDILLM20T 🔧 Explore Switch(CLLI: BGBKILBKDS0))
630-771-7XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	LEMONT	BGBKILBKDS0	N/A	Prefix Type: RBOC Switch Name: BOLINGBROOK Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: LBRDILLM20T 🔧 Explore Switch(CLLI: BGBKILBKDS0))
630-771-8XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	LEMONT	BGBKILBKDS0	N/A	Prefix Type: RBOC Switch Name: BOLINGBROOK Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: LBRDILLM20T 🔧 Explore Switch(CLLI: BGBKILBKDS0))
630-771-9XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	LEMONT	BGBKILBKDS0	N/A	Prefix Type: RBOC Switch Name: BOLINGBROOK Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: LBRDILLM20T 🔧 Explore Switch(CLLI: BGBKILBKDS0))
630-773	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	ITASCA	BNSVILBVDS0	00/00/0000	Prefix Type: RBOC Switch Name: BENSENVILLE Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: NCHCILNC20T 🔧 Explore Switch(CLLI: BNSVILBVDS0))
630-775	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	ITASCA	BNSVILBVDS0	00/00/0000	Prefix Type: RBOC Switch Name: BENSENVILLE Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: NCHCILNC20T 🔧 Explore Switch(CLLI: BNSVILBVDS0))
630-775 is split into 1,000-number blocks - detail below
630-775-0XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	ITASCA	BNSVILBVDS0	N/A	Prefix Type: RBOC Switch Name: BENSENVILLE Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: NCHCILNC20T 🔧 Explore Switch(CLLI: BNSVILBVDS0))
630-775-1XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	ITASCA	BNSVILBVDS0	N/A	Prefix Type: RBOC Switch Name: BENSENVILLE Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: NCHCILNC20T 🔧 Explore Switch(CLLI: BNSVILBVDS0))
630-775-2XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	ITASCA	BNSVILBVDS0	N/A	Prefix Type: RBOC Switch Name: BENSENVILLE Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: NCHCILNC20T 🔧 Explore Switch(CLLI: BNSVILBVDS0))
630-775-3XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	ITASCA	BNSVILBVDS0	N/A	Prefix Type: RBOC Switch Name: BENSENVILLE Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: NCHCILNC20T 🔧 Explore Switch(CLLI: BNSVILBVDS0))
630-775-5XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	ITASCA	BNSVILBVDS0	N/A	Prefix Type: RBOC Switch Name: BENSENVILLE Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: NCHCILNC20T 🔧 Explore Switch(CLLI: BNSVILBVDS0))
630-775-6XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	ITASCA	BNSVILBVDS0	N/A	Prefix Type: RBOC Switch Name: BENSENVILLE Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: NCHCILNC20T 🔧 Explore Switch(CLLI: BNSVILBVDS0))
630-775-7XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	ITASCA	BNSVILBVDS0	N/A	Prefix Type: RBOC Switch Name: BENSENVILLE Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: NCHCILNC20T 🔧 Explore Switch(CLLI: BNSVILBVDS0))
630-775-9XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	ITASCA	BNSVILBVDS0	N/A	Prefix Type: RBOC Switch Name: BENSENVILLE Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: NCHCILNC20T 🔧 Explore Switch(CLLI: BNSVILBVDS0))
630-778	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	NAPERVILLE	NPVLILNADS0	00/00/0000	Prefix Type: RBOC Switch Name: NAPERVILLE NA Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: LBRDILLM20T 🔧 Explore Switch(CLLI: NPVLILNADS0))
630-782	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	ELMHURST	EMHRILETDS0	00/00/0000	Prefix Type: RBOC Switch Name: ELMHURST Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: NCHCILNC20T 🔧 Explore Switch(CLLI: EMHRILETDS0))
630-783	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	LEMONT	LEMTILLNDS0	00/00/0000	Prefix Type: RBOC Switch Name: LEMONT NORTH Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: LBRDILLM20T 🔧 Explore Switch(CLLI: LEMTILLNDS0))
630-784	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	WHEATON	WHTNILWHDS0	00/00/0000	Prefix Type: RBOC Switch Name: WHEATON DS0 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILNE20T 🔧 Explore Switch(CLLI: WHTNILWHDS0))
630-787	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	BENSENVL	BNSVILBVDS0	00/00/0000	Prefix Type: RBOC Switch Name: BENSENVILLE Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: NCHCILNC20T 🔧 Explore Switch(CLLI: BNSVILBVDS0))
630-789	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	HINSDALE	HNDLILHIDS0	00/00/0000	Prefix Type: RBOC Switch Name: HINSDALE Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: LBRDILLM20T 🔧 Explore Switch(CLLI: HNDLILHIDS0))
630-790	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	GLEN ELLYN	GLELILGEDS0	00/00/0000	Prefix Type: RBOC Switch Name: GLEN ELLYN Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: NCHCILNC20T 🔧 Explore Switch(CLLI: GLELILGEDS0))
630-792	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	LOMBARD	LBRDILLMDS0	00/00/0000	Prefix Type: RBOC Switch Name: LOMBARD MAIN DS0 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: LBRDILLM20T 🔧 Explore Switch(CLLI: LBRDILLMDS0))
630-792 is split into 1,000-number blocks - detail below
630-792-0XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	LOMBARD	LBRDILLMDS0	N/A	Prefix Type: RBOC Switch Name: LOMBARD MAIN DS0 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: LBRDILLM20T 🔧 Explore Switch(CLLI: LBRDILLMDS0))
630-792-1XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	LOMBARD	LBRDILLMDS0	N/A	Prefix Type: RBOC Switch Name: LOMBARD MAIN DS0 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: LBRDILLM20T 🔧 Explore Switch(CLLI: LBRDILLMDS0))
630-792-3XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	LOMBARD	LBRDILLMDS0	N/A	Prefix Type: RBOC Switch Name: LOMBARD MAIN DS0 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: LBRDILLM20T 🔧 Explore Switch(CLLI: LBRDILLMDS0))
630-792-4XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	LOMBARD	LBRDILLMDS0	N/A	Prefix Type: RBOC Switch Name: LOMBARD MAIN DS0 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: LBRDILLM20T 🔧 Explore Switch(CLLI: LBRDILLMDS0))
630-792-5XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	LOMBARD	LBRDILLMDS0	N/A	Prefix Type: RBOC Switch Name: LOMBARD MAIN DS0 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: LBRDILLM20T 🔧 Explore Switch(CLLI: LBRDILLMDS0))
630-792-6XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	LOMBARD	LBRDILLMDS0	N/A	Prefix Type: RBOC Switch Name: LOMBARD MAIN DS0 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: LBRDILLM20T 🔧 Explore Switch(CLLI: LBRDILLMDS0))
630-792-7XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	LOMBARD	LBRDILLMDS0	N/A	Prefix Type: RBOC Switch Name: LOMBARD MAIN DS0 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: LBRDILLM20T 🔧 Explore Switch(CLLI: LBRDILLMDS0))
630-792-8XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	LOMBARD	LBRDILLMDS0	N/A	Prefix Type: RBOC Switch Name: LOMBARD MAIN DS0 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: LBRDILLM20T 🔧 Explore Switch(CLLI: LBRDILLMDS0))
630-794	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	HINSDALE	HNDLILHIDS0	00/00/0000	Prefix Type: RBOC Switch Name: HINSDALE Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: LBRDILLM20T 🔧 Explore Switch(CLLI: HNDLILHIDS0))
630-795	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	DOWNERSGRV	DWGVILDGDS0	00/00/0000	Prefix Type: RBOC Switch Name: DOWNERS GROVE DS0 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: LBRDILLM20T 🔧 Explore Switch(CLLI: DWGVILDGDS0))
630-795 is split into 1,000-number blocks - detail below
630-795-1XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	DOWNERSGRV	DWGVILDGDS0	N/A	Prefix Type: RBOC Switch Name: DOWNERS GROVE DS0 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: LBRDILLM20T 🔧 Explore Switch(CLLI: DWGVILDGDS0))
630-795-2XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	DOWNERSGRV	DWGVILDGDS0	N/A	Prefix Type: RBOC Switch Name: DOWNERS GROVE DS0 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: LBRDILLM20T 🔧 Explore Switch(CLLI: DWGVILDGDS0))
630-795-3XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	DOWNERSGRV	DWGVILDGDS0	N/A	Prefix Type: RBOC Switch Name: DOWNERS GROVE DS0 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: LBRDILLM20T 🔧 Explore Switch(CLLI: DWGVILDGDS0))
630-795-4XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	DOWNERSGRV	DWGVILDGDS0	N/A	Prefix Type: RBOC Switch Name: DOWNERS GROVE DS0 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: LBRDILLM20T 🔧 Explore Switch(CLLI: DWGVILDGDS0))
630-795-5XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	DOWNERSGRV	DWGVILDGDS0	N/A	Prefix Type: RBOC Switch Name: DOWNERS GROVE DS0 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: LBRDILLM20T 🔧 Explore Switch(CLLI: DWGVILDGDS0))
630-795-7XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	DOWNERSGRV	DWGVILDGDS0	N/A	Prefix Type: RBOC Switch Name: DOWNERS GROVE DS0 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: LBRDILLM20T 🔧 Explore Switch(CLLI: DWGVILDGDS0))
630-795-8XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	DOWNERSGRV	DWGVILDGDS0	N/A	Prefix Type: RBOC Switch Name: DOWNERS GROVE DS0 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: LBRDILLM20T 🔧 Explore Switch(CLLI: DWGVILDGDS0))
630-797 is split into 1,000-number blocks - detail below
630-797-4XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	ST CHARLES	GENVILGNDS0	08/30/2000	Prefix Type: RBOC Switch Name: GENEVA Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILNE20T 🔧 Explore Switch(CLLI: GENVILGNDS0))
630-798	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	NAPERVILLE	NPVLILNADS0	00/00/0000	Prefix Type: RBOC Switch Name: NAPERVILLE NA Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: LBRDILLM20T 🔧 Explore Switch(CLLI: NPVLILNADS0))
630-799	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	NAPERVILLE	NPVLILNEDS0	00/00/0000	Prefix Type: RBOC Switch Name: NAPERVILLE NE Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: LBRDILLM20T 🔧 Explore Switch(CLLI: NPVLILNEDS0))
630-801	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	AURORA	AURRILARDS0	00/00/0000	Prefix Type: RBOC Switch Name: AURORA MAIN Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: LBRDILLM20T 🔧 Explore Switch(CLLI: AURRILARDS0))
630-810	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	DOWNERSGRV	DWGVILDGDS1	00/00/0000	Prefix Type: RBOC Switch Name: DOWNERS GROVE DS1 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: LBRDILLM20T 🔧 Explore Switch(CLLI: DWGVILDGDS1))
630-813	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	NAPERVILLE	NPVLILNADS0	12/10/2002	Prefix Type: RBOC Switch Name: NAPERVILLE NA Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: LBRDILLM20T 🔧 Explore Switch(CLLI: NPVLILNADS0))
630-813 is split into 1,000-number blocks - detail below
630-813-0XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	NAPERVILLE	NPVLILNADS0	N/A	Prefix Type: RBOC Switch Name: NAPERVILLE NA Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: LBRDILLM20T 🔧 Explore Switch(CLLI: NPVLILNADS0))
630-813-1XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	NAPERVILLE	NPVLILNADS0	N/A	Prefix Type: RBOC Switch Name: NAPERVILLE NA Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: LBRDILLM20T 🔧 Explore Switch(CLLI: NPVLILNADS0))
630-813-2XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	NAPERVILLE	NPVLILNADS0	N/A	Prefix Type: RBOC Switch Name: NAPERVILLE NA Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: LBRDILLM20T 🔧 Explore Switch(CLLI: NPVLILNADS0))
630-813-3XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	NAPERVILLE	NPVLILNADS0	N/A	Prefix Type: RBOC Switch Name: NAPERVILLE NA Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: LBRDILLM20T 🔧 Explore Switch(CLLI: NPVLILNADS0))
630-813-4XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	NAPERVILLE	NPVLILNADS0	N/A	Prefix Type: RBOC Switch Name: NAPERVILLE NA Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: LBRDILLM20T 🔧 Explore Switch(CLLI: NPVLILNADS0))
630-813-5XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	NAPERVILLE	NPVLILNADS0	N/A	Prefix Type: RBOC Switch Name: NAPERVILLE NA Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: LBRDILLM20T 🔧 Explore Switch(CLLI: NPVLILNADS0))
630-813-6XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	NAPERVILLE	NPVLILNADS0	N/A	Prefix Type: RBOC Switch Name: NAPERVILLE NA Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: LBRDILLM20T 🔧 Explore Switch(CLLI: NPVLILNADS0))
630-813-7XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	NAPERVILLE	NPVLILNADS0	N/A	Prefix Type: RBOC Switch Name: NAPERVILLE NA Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: LBRDILLM20T 🔧 Explore Switch(CLLI: NPVLILNADS0))
630-813-8XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	NAPERVILLE	NPVLILNADS0	N/A	Prefix Type: RBOC Switch Name: NAPERVILLE NA Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: LBRDILLM20T 🔧 Explore Switch(CLLI: NPVLILNADS0))
630-813-9XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	NAPERVILLE	NPVLILNADS0	N/A	Prefix Type: RBOC Switch Name: NAPERVILLE NA Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: LBRDILLM20T 🔧 Explore Switch(CLLI: NPVLILNADS0))
630-820	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	AURORA	AURRILAEDS0	00/00/0000	Prefix Type: RBOC Switch Name: AURORA EAST DS0 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: LBRDILLM20T 🔧 Explore Switch(CLLI: AURRILAEDS0))
630-821 is split into 1,000-number blocks - detail below
630-821-7XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	WARRENVL	WNVLILWVDS0	06/25/2003	Prefix Type: RBOC Switch Name: WARRENVILLE Switch Type: N/A LATA: Chicago IL METRO (358) Tandem: N/A 🔧 Explore Switch(CLLI: WNVLILWVDS0))
630-824 is split into 1,000-number blocks - detail below
630-824-5XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	DOWNERSGRV	DWGVILDGDS1	04/15/2003	Prefix Type: RBOC Switch Name: DOWNERS GROVE DS1 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: LBRDILLM20T 🔧 Explore Switch(CLLI: DWGVILDGDS1))
630-824-6XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	DOWNERSGRV	DWGVILDGDS1	04/15/2003	Prefix Type: RBOC Switch Name: DOWNERS GROVE DS1 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: LBRDILLM20T 🔧 Explore Switch(CLLI: DWGVILDGDS1))
630-827 is split into 1,000-number blocks - detail below
630-827-4XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	LOMBARD	LBRDILLMDS1	10/13/2000	Prefix Type: RBOC Switch Name: LOMBARD MAIN DS1 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: LBRDILLM20T 🔧 Explore Switch(CLLI: LBRDILLMDS1))
630-827-5XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	LOMBARD	LBRDILLMDS1	10/13/2000	Prefix Type: RBOC Switch Name: LOMBARD MAIN DS1 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: LBRDILLM20T 🔧 Explore Switch(CLLI: LBRDILLMDS1))
630-827-6XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	LOMBARD	LBRDILLMDS1	10/13/2000	Prefix Type: RBOC Switch Name: LOMBARD MAIN DS1 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: LBRDILLM20T 🔧 Explore Switch(CLLI: LBRDILLMDS1))
630-829	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	DOWNERSGRV	DWGVILDGDS1	00/00/0000	Prefix Type: RBOC Switch Name: DOWNERS GROVE DS1 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: LBRDILLM20T 🔧 Explore Switch(CLLI: DWGVILDGDS1))
630-830	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	BARTLETT	BRTLILBTDS0	00/00/0000	Prefix Type: RBOC Switch Name: BARTLETT Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILNE20T 🔧 Explore Switch(CLLI: BRTLILBTDS0))
630-832	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	ELMHURST	EMHRILETDS0	00/00/0000	Prefix Type: RBOC Switch Name: ELMHURST Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: NCHCILNC20T 🔧 Explore Switch(CLLI: EMHRILETDS0))
630-833	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	ELMHURST	EMHRILETDS0	00/00/0000	Prefix Type: RBOC Switch Name: ELMHURST Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: NCHCILNC20T 🔧 Explore Switch(CLLI: EMHRILETDS0))
630-834	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	ELMHURST	EMHRILETDS0	00/00/0000	Prefix Type: RBOC Switch Name: ELMHURST Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: NCHCILNC20T 🔧 Explore Switch(CLLI: EMHRILETDS0))
630-836	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	WARRENVL	WNVLILWVDS0	00/00/0000	Prefix Type: RBOC Switch Name: WARRENVILLE Switch Type: N/A LATA: Chicago IL METRO (358) Tandem: N/A 🔧 Explore Switch(CLLI: WNVLILWVDS0))
630-837	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	BARTLETT	BRTLILBTDS0	00/00/0000	Prefix Type: RBOC Switch Name: BARTLETT Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILNE20T 🔧 Explore Switch(CLLI: BRTLILBTDS0))
630-844	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	AURORA	AURRILARDS0	00/00/0000	Prefix Type: RBOC Switch Name: AURORA MAIN Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: LBRDILLM20T 🔧 Explore Switch(CLLI: AURRILARDS0))
630-845	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	GENEVA	GENVILGNDS0	00/00/0000	Prefix Type: RBOC Switch Name: GENEVA Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILNE20T 🔧 Explore Switch(CLLI: GENVILGNDS0))
630-848	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	NAPERVILLE	NPVLILNADS0	00/00/0000	Prefix Type: RBOC Switch Name: NAPERVILLE NA Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: LBRDILLM20T 🔧 Explore Switch(CLLI: NPVLILNADS0))
630-848 is split into 1,000-number blocks - detail below
630-848-0XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	NAPERVILLE	NPVLILNADS0	N/A	Prefix Type: RBOC Switch Name: NAPERVILLE NA Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: LBRDILLM20T 🔧 Explore Switch(CLLI: NPVLILNADS0))
630-848-1XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	NAPERVILLE	NPVLILNADS0	N/A	Prefix Type: RBOC Switch Name: NAPERVILLE NA Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: LBRDILLM20T 🔧 Explore Switch(CLLI: NPVLILNADS0))
630-848-2XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	NAPERVILLE	NPVLILNADS0	N/A	Prefix Type: RBOC Switch Name: NAPERVILLE NA Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: LBRDILLM20T 🔧 Explore Switch(CLLI: NPVLILNADS0))
630-848-3XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	NAPERVILLE	NPVLILNADS0	N/A	Prefix Type: RBOC Switch Name: NAPERVILLE NA Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: LBRDILLM20T 🔧 Explore Switch(CLLI: NPVLILNADS0))
630-848-4XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	NAPERVILLE	NPVLILNADS0	N/A	Prefix Type: RBOC Switch Name: NAPERVILLE NA Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: LBRDILLM20T 🔧 Explore Switch(CLLI: NPVLILNADS0))
630-848-5XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	NAPERVILLE	NPVLILNADS0	N/A	Prefix Type: RBOC Switch Name: NAPERVILLE NA Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: LBRDILLM20T 🔧 Explore Switch(CLLI: NPVLILNADS0))
630-848-6XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	NAPERVILLE	NPVLILNADS0	N/A	Prefix Type: RBOC Switch Name: NAPERVILLE NA Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: LBRDILLM20T 🔧 Explore Switch(CLLI: NPVLILNADS0))
630-848-7XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	NAPERVILLE	NPVLILNADS0	N/A	Prefix Type: RBOC Switch Name: NAPERVILLE NA Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: LBRDILLM20T 🔧 Explore Switch(CLLI: NPVLILNADS0))
630-848-8XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	NAPERVILLE	NPVLILNADS0	N/A	Prefix Type: RBOC Switch Name: NAPERVILLE NA Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: LBRDILLM20T 🔧 Explore Switch(CLLI: NPVLILNADS0))
630-850	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	HINSDALE	HNDLILHIDS0	00/00/0000	Prefix Type: RBOC Switch Name: HINSDALE Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: LBRDILLM20T 🔧 Explore Switch(CLLI: HNDLILHIDS0))
630-850 is split into 1,000-number blocks - detail below
630-850-1XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	HINSDALE	HNDLILHIDS0	N/A	Prefix Type: RBOC Switch Name: HINSDALE Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: LBRDILLM20T 🔧 Explore Switch(CLLI: HNDLILHIDS0))
630-850-2XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	HINSDALE	HNDLILHIDS0	N/A	Prefix Type: RBOC Switch Name: HINSDALE Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: LBRDILLM20T 🔧 Explore Switch(CLLI: HNDLILHIDS0))
630-850-3XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	HINSDALE	HNDLILHIDS0	N/A	Prefix Type: RBOC Switch Name: HINSDALE Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: LBRDILLM20T 🔧 Explore Switch(CLLI: HNDLILHIDS0))
630-850-4XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	HINSDALE	HNDLILHIDS0	N/A	Prefix Type: RBOC Switch Name: HINSDALE Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: LBRDILLM20T 🔧 Explore Switch(CLLI: HNDLILHIDS0))
630-850-5XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	HINSDALE	HNDLILHIDS0	N/A	Prefix Type: RBOC Switch Name: HINSDALE Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: LBRDILLM20T 🔧 Explore Switch(CLLI: HNDLILHIDS0))
630-850-7XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	HINSDALE	HNDLILHIDS0	N/A	Prefix Type: RBOC Switch Name: HINSDALE Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: LBRDILLM20T 🔧 Explore Switch(CLLI: HNDLILHIDS0))
630-850-8XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	HINSDALE	HNDLILHIDS0	N/A	Prefix Type: RBOC Switch Name: HINSDALE Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: LBRDILLM20T 🔧 Explore Switch(CLLI: HNDLILHIDS0))
630-850-9XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	HINSDALE	HNDLILHIDS0	N/A	Prefix Type: RBOC Switch Name: HINSDALE Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: LBRDILLM20T 🔧 Explore Switch(CLLI: HNDLILHIDS0))
630-851	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	AURORA	AURRILAEDS0	00/00/0000	Prefix Type: RBOC Switch Name: AURORA EAST DS0 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: LBRDILLM20T 🔧 Explore Switch(CLLI: AURRILAEDS0))
630-852	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	DOWNERSGRV	DWGVILDGDS1	00/00/0000	Prefix Type: RBOC Switch Name: DOWNERS GROVE DS1 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: LBRDILLM20T 🔧 Explore Switch(CLLI: DWGVILDGDS1))
630-856	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	HINSDALE	HNDLILHIDS0	00/00/0000	Prefix Type: RBOC Switch Name: HINSDALE Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: LBRDILLM20T 🔧 Explore Switch(CLLI: HNDLILHIDS0))
630-857	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	NAPERVILLE	NPVLILNEDS0	00/00/0000	Prefix Type: RBOC Switch Name: NAPERVILLE NE Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: LBRDILLM20T 🔧 Explore Switch(CLLI: NPVLILNEDS0))
630-857 is split into 1,000-number blocks - detail below
630-857-1XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	NAPERVILLE	NPVLILNEDS0	N/A	Prefix Type: RBOC Switch Name: NAPERVILLE NE Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: LBRDILLM20T 🔧 Explore Switch(CLLI: NPVLILNEDS0))
630-857-2XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	NAPERVILLE	NPVLILNEDS0	N/A	Prefix Type: RBOC Switch Name: NAPERVILLE NE Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: LBRDILLM20T 🔧 Explore Switch(CLLI: NPVLILNEDS0))
630-857-4XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	NAPERVILLE	NPVLILNEDS0	N/A	Prefix Type: RBOC Switch Name: NAPERVILLE NE Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: LBRDILLM20T 🔧 Explore Switch(CLLI: NPVLILNEDS0))
630-857-5XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	NAPERVILLE	NPVLILNEDS0	N/A	Prefix Type: RBOC Switch Name: NAPERVILLE NE Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: LBRDILLM20T 🔧 Explore Switch(CLLI: NPVLILNEDS0))
630-857-7XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	NAPERVILLE	NPVLILNEDS0	N/A	Prefix Type: RBOC Switch Name: NAPERVILLE NE Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: LBRDILLM20T 🔧 Explore Switch(CLLI: NPVLILNEDS0))
630-858	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	GLEN ELLYN	GLELILGEDS0	00/00/0000	Prefix Type: RBOC Switch Name: GLEN ELLYN Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: NCHCILNC20T 🔧 Explore Switch(CLLI: GLELILGEDS0))
630-859	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	AURORA	AURRILARDS0	00/00/0000	Prefix Type: RBOC Switch Name: AURORA MAIN Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: LBRDILLM20T 🔧 Explore Switch(CLLI: AURRILARDS0))
630-860	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	BENSENVL	BNSVILBVDS0	00/00/0000	Prefix Type: RBOC Switch Name: BENSENVILLE Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: NCHCILNC20T 🔧 Explore Switch(CLLI: BNSVILBVDS0))
630-862	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	AURORA	AURRILAEDS0	05/20/2002	Prefix Type: RBOC Switch Name: AURORA EAST DS0 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: LBRDILLM20T 🔧 Explore Switch(CLLI: AURRILAEDS0))
630-862 is split into 1,000-number blocks - detail below
630-862-2XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	AURORA	AURRILAEDS0	05/24/2002	Prefix Type: RBOC Switch Name: AURORA EAST DS0 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: LBRDILLM20T 🔧 Explore Switch(CLLI: AURRILAEDS0))
630-862-3XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	AURORA	AURRILAEDS0	05/24/2002	Prefix Type: RBOC Switch Name: AURORA EAST DS0 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: LBRDILLM20T 🔧 Explore Switch(CLLI: AURRILAEDS0))
630-871	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	WHEATON	WHTNILWHDS0	00/00/0000	Prefix Type: RBOC Switch Name: WHEATON DS0 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILNE20T 🔧 Explore Switch(CLLI: WHTNILWHDS0))
630-872	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	ROSELLE	HFESILWLDS1	00/00/0000	Prefix Type: RBOC Switch Name: WILLOWCREST DS1 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: NCHCILNC20T 🔧 Explore Switch(CLLI: HFESILWLDS1))
630-872 is split into 1,000-number blocks - detail below
630-872-0XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	ROSELLE	HFESILWLDS1	N/A	Prefix Type: RBOC Switch Name: WILLOWCREST DS1 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: NCHCILNC20T 🔧 Explore Switch(CLLI: HFESILWLDS1))
630-872-8XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	ROSELLE	HFESILWLDS1	N/A	Prefix Type: RBOC Switch Name: WILLOWCREST DS1 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: NCHCILNC20T 🔧 Explore Switch(CLLI: HFESILWLDS1))
630-875	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	ITASCA	BNSVILBVDS0	00/00/0000	Prefix Type: RBOC Switch Name: BENSENVILLE Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: NCHCILNC20T 🔧 Explore Switch(CLLI: BNSVILBVDS0))
630-876	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	W CHICAGO	WCHCILWCDS0	00/00/0000	Prefix Type: RBOC Switch Name: WEST CHICAGO Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: NCHCILNC20T 🔧 Explore Switch(CLLI: WCHCILWCDS0))
630-879	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	BATAVIA	GENVILGNDS0	00/00/0000	Prefix Type: RBOC Switch Name: GENEVA Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILNE20T 🔧 Explore Switch(CLLI: GENVILGNDS0))
630-882 is split into 1,000-number blocks - detail below
630-882-6XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	YORKVILLE	YRVLILYORS0	11/10/2005	Prefix Type: RBOC Switch Name: YORKVILLE Switch Type: N/A LATA: Chicago IL METRO (358) Tandem: LBRDILLM20T 🔧 Explore Switch(CLLI: YRVLILYORS0))
630-882-8XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	YORKVILLE	YRVLILYORS0	08/27/2002	Prefix Type: RBOC Switch Name: YORKVILLE Switch Type: N/A LATA: Chicago IL METRO (358) Tandem: LBRDILLM20T 🔧 Explore Switch(CLLI: YRVLILYORS0))
630-887	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	HINSDALE	HNDLILHIDS0	00/00/0000	Prefix Type: RBOC Switch Name: HINSDALE Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: LBRDILLM20T 🔧 Explore Switch(CLLI: HNDLILHIDS0))
630-889	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	LOMBARD	LBRDILLMDS1	00/00/0000	Prefix Type: RBOC Switch Name: LOMBARD MAIN DS1 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: LBRDILLM20T 🔧 Explore Switch(CLLI: LBRDILLMDS1))
630-891 is split into 1,000-number blocks - detail below
630-891-4XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	HINSDALE	OKBRILOADS0	11/15/1999	Prefix Type: RBOC Switch Name: OAKBROOK Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: LBRDILLM20T 🔧 Explore Switch(CLLI: OKBRILOADS0))
630-891-5XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	HINSDALE	OKBRILOADS0	09/16/1999	Prefix Type: RBOC Switch Name: OAKBROOK Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: LBRDILLM20T 🔧 Explore Switch(CLLI: OKBRILOADS0))
630-891-6XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	HINSDALE	OKBRILOADS0	09/16/1999	Prefix Type: RBOC Switch Name: OAKBROOK Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: LBRDILLM20T 🔧 Explore Switch(CLLI: OKBRILOADS0))
630-891-7XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	HINSDALE	OKBRILOADS0	02/14/2000	Prefix Type: RBOC Switch Name: OAKBROOK Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: LBRDILLM20T 🔧 Explore Switch(CLLI: OKBRILOADS0))
630-892	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	AURORA	AURRILARDS0	00/00/0000	Prefix Type: RBOC Switch Name: AURORA MAIN Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: LBRDILLM20T 🔧 Explore Switch(CLLI: AURRILARDS0))
630-893	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	ROSELLE	RSLLILRZDS0	00/00/0000	Prefix Type: RBOC Switch Name: ROSELLE Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILNE20T 🔧 Explore Switch(CLLI: RSLLILRZDS0))
630-894	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	ROSELLE	RSLLILRZDS0	00/00/0000	Prefix Type: RBOC Switch Name: ROSELLE Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILNE20T 🔧 Explore Switch(CLLI: RSLLILRZDS0))
630-896	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	AURORA	AURRILARDS0	00/00/0000	Prefix Type: RBOC Switch Name: AURORA MAIN Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: LBRDILLM20T 🔧 Explore Switch(CLLI: AURRILARDS0))
630-897	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	AURORA	AURRILARDS0	00/00/0000	Prefix Type: RBOC Switch Name: AURORA MAIN Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: LBRDILLM20T 🔧 Explore Switch(CLLI: AURRILARDS0))
630-898	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	AURORA	AURRILAEDS0	00/00/0000	Prefix Type: RBOC Switch Name: AURORA EAST DS0 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: LBRDILLM20T 🔧 Explore Switch(CLLI: AURRILAEDS0))
630-904	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	NAPERVILLE	NPVLILNADS0	00/00/0000	Prefix Type: RBOC Switch Name: NAPERVILLE NA Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: LBRDILLM20T 🔧 Explore Switch(CLLI: NPVLILNADS0))
630-905	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	ROSELLE	RSLLILRZDS0	00/00/0000	Prefix Type: RBOC Switch Name: ROSELLE Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILNE20T 🔧 Explore Switch(CLLI: RSLLILRZDS0))
630-906	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	AURORA	AURRILARDS0	00/00/0000	Prefix Type: RBOC Switch Name: AURORA MAIN Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: LBRDILLM20T 🔧 Explore Switch(CLLI: AURRILARDS0))
630-907	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	AURORA	AURRILAWRS0	00/00/0000	Prefix Type: RBOC Switch Name: AURORA WEST Switch Type: N/A LATA: Chicago IL METRO (358) Tandem: LBRDILLM20T 🔧 Explore Switch(CLLI: AURRILAWRS0))
630-907 is split into 1,000-number blocks - detail below
630-907-0XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	AURORA	AURRILAWRS0	N/A	Prefix Type: RBOC Switch Name: AURORA WEST Switch Type: N/A LATA: Chicago IL METRO (358) Tandem: LBRDILLM20T 🔧 Explore Switch(CLLI: AURRILAWRS0))
630-907-1XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	AURORA	AURRILAWRS0	N/A	Prefix Type: RBOC Switch Name: AURORA WEST Switch Type: N/A LATA: Chicago IL METRO (358) Tandem: LBRDILLM20T 🔧 Explore Switch(CLLI: AURRILAWRS0))
630-907-2XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	AURORA	AURRILAWRS0	N/A	Prefix Type: RBOC Switch Name: AURORA WEST Switch Type: N/A LATA: Chicago IL METRO (358) Tandem: LBRDILLM20T 🔧 Explore Switch(CLLI: AURRILAWRS0))
630-907-3XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	AURORA	AURRILAWRS0	N/A	Prefix Type: RBOC Switch Name: AURORA WEST Switch Type: N/A LATA: Chicago IL METRO (358) Tandem: LBRDILLM20T 🔧 Explore Switch(CLLI: AURRILAWRS0))
630-907-4XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	AURORA	AURRILAWRS0	N/A	Prefix Type: RBOC Switch Name: AURORA WEST Switch Type: N/A LATA: Chicago IL METRO (358) Tandem: LBRDILLM20T 🔧 Explore Switch(CLLI: AURRILAWRS0))
630-907-5XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	AURORA	AURRILAWRS0	N/A	Prefix Type: RBOC Switch Name: AURORA WEST Switch Type: N/A LATA: Chicago IL METRO (358) Tandem: LBRDILLM20T 🔧 Explore Switch(CLLI: AURRILAWRS0))
630-907-6XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	AURORA	AURRILAWRS0	N/A	Prefix Type: RBOC Switch Name: AURORA WEST Switch Type: N/A LATA: Chicago IL METRO (358) Tandem: LBRDILLM20T 🔧 Explore Switch(CLLI: AURRILAWRS0))
630-907-8XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	AURORA	AURRILAWRS0	N/A	Prefix Type: RBOC Switch Name: AURORA WEST Switch Type: N/A LATA: Chicago IL METRO (358) Tandem: LBRDILLM20T 🔧 Explore Switch(CLLI: AURRILAWRS0))
630-907-9XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	AURORA	AURRILAWRS0	N/A	Prefix Type: RBOC Switch Name: AURORA WEST Switch Type: N/A LATA: Chicago IL METRO (358) Tandem: LBRDILLM20T 🔧 Explore Switch(CLLI: AURRILAWRS0))
630-909 is split into 1,000-number blocks - detail below
630-909-4XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	WHEATON	WHTNILWHDS0	06/16/2000	Prefix Type: RBOC Switch Name: WHEATON DS0 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILNE20T 🔧 Explore Switch(CLLI: WHTNILWHDS0))
630-909-5XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	WHEATON	WHTNILWHDS0	06/16/2000	Prefix Type: RBOC Switch Name: WHEATON DS0 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILNE20T 🔧 Explore Switch(CLLI: WHTNILWHDS0))
630-909-6XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	WHEATON	WHTNILWHDS0	05/22/2006	Prefix Type: RBOC Switch Name: WHEATON DS0 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILNE20T 🔧 Explore Switch(CLLI: WHTNILWHDS0))
630-909-7XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	WHEATON	WHTNILWHDS0	05/22/2006	Prefix Type: RBOC Switch Name: WHEATON DS0 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILNE20T 🔧 Explore Switch(CLLI: WHTNILWHDS0))
630-909-8XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	WHEATON	WHTNILWHDS0	05/22/2006	Prefix Type: RBOC Switch Name: WHEATON DS0 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILNE20T 🔧 Explore Switch(CLLI: WHTNILWHDS0))
630-910	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	DOWNERSGRV	LEMTILLNDS0	00/00/0000	Prefix Type: RBOC Switch Name: LEMONT NORTH Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: LBRDILLM20T 🔧 Explore Switch(CLLI: LEMTILLNDS0))
630-914	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	LEMONT	LEMTILLEDS0	06/20/2006	Prefix Type: RBOC Switch Name: LEMONT MAIN Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: LBRDILLM20T 🔧 Explore Switch(CLLI: LEMTILLEDS0))
630-914 is split into 1,000-number blocks - detail below
630-914-1XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	LEMONT	LEMTILLEDS0	N/A	Prefix Type: RBOC Switch Name: LEMONT MAIN Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: LBRDILLM20T 🔧 Explore Switch(CLLI: LEMTILLEDS0))
630-914-2XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	LEMONT	LEMTILLEDS0	07/23/2007	Prefix Type: RBOC Switch Name: LEMONT MAIN Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: LBRDILLM20T 🔧 Explore Switch(CLLI: LEMTILLEDS0))
630-916	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	LOMBARD	LBRDILLMDS0	00/00/0000	Prefix Type: RBOC Switch Name: LOMBARD MAIN DS0 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: LBRDILLM20T 🔧 Explore Switch(CLLI: LBRDILLMDS0))
630-920	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	HINSDALE	HNDLILHIDS0	00/00/0000	Prefix Type: RBOC Switch Name: HINSDALE Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: LBRDILLM20T 🔧 Explore Switch(CLLI: HNDLILHIDS0))
630-922	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	NAPERVILLE	NPVLILNADS0	00/00/0000	Prefix Type: RBOC Switch Name: NAPERVILLE NA Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: LBRDILLM20T 🔧 Explore Switch(CLLI: NPVLILNADS0))
630-924	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	ROSELLE	RSLLILRZDS0	00/00/0000	Prefix Type: RBOC Switch Name: ROSELLE Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILNE20T 🔧 Explore Switch(CLLI: RSLLILRZDS0))
630-928	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	HINSDALE	OKBRILOADS0	00/00/0000	Prefix Type: RBOC Switch Name: OAKBROOK Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: LBRDILLM20T 🔧 Explore Switch(CLLI: OKBRILOADS0))
630-932	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	LOMBARD	LBRDILLMDS1	00/00/0000	Prefix Type: RBOC Switch Name: LOMBARD MAIN DS1 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: LBRDILLM20T 🔧 Explore Switch(CLLI: LBRDILLMDS1))
630-933	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	WHEATON	WHTNILWHDS0	00/00/0000	Prefix Type: RBOC Switch Name: WHEATON DS0 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILNE20T 🔧 Explore Switch(CLLI: WHTNILWHDS0))
630-941	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	ELMHURST	EMHRILETDS0	00/00/0000	Prefix Type: RBOC Switch Name: ELMHURST Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: NCHCILNC20T 🔧 Explore Switch(CLLI: EMHRILETDS0))
630-942	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	GLEN ELLYN	GLELILGEDS0	00/00/0000	Prefix Type: RBOC Switch Name: GLEN ELLYN Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: NCHCILNC20T 🔧 Explore Switch(CLLI: GLELILGEDS0))
630-948 is split into 1,000-number blocks - detail below
630-948-6XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	BENSENVL	BNSVILBVDS0	04/18/2008	Prefix Type: RBOC Switch Name: BENSENVILLE Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: NCHCILNC20T 🔧 Explore Switch(CLLI: BNSVILBVDS0))
630-953	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	LOMBARD	LBRDILLMDS1	00/00/0000	Prefix Type: RBOC Switch Name: LOMBARD MAIN DS1 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: LBRDILLM20T 🔧 Explore Switch(CLLI: LBRDILLMDS1))
630-953 is split into 1,000-number blocks - detail below
630-953-0XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	LOMBARD	LBRDILLMDS1	N/A	Prefix Type: RBOC Switch Name: LOMBARD MAIN DS1 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: LBRDILLM20T 🔧 Explore Switch(CLLI: LBRDILLMDS1))
630-953-1XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	LOMBARD	LBRDILLMDS1	N/A	Prefix Type: RBOC Switch Name: LOMBARD MAIN DS1 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: LBRDILLM20T 🔧 Explore Switch(CLLI: LBRDILLMDS1))
630-953-2XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	LOMBARD	LBRDILLMDS1	N/A	Prefix Type: RBOC Switch Name: LOMBARD MAIN DS1 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: LBRDILLM20T 🔧 Explore Switch(CLLI: LBRDILLMDS1))
630-953-3XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	LOMBARD	LBRDILLMDS1	N/A	Prefix Type: RBOC Switch Name: LOMBARD MAIN DS1 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: LBRDILLM20T 🔧 Explore Switch(CLLI: LBRDILLMDS1))
630-953-6XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	LOMBARD	LBRDILLMDS1	N/A	Prefix Type: RBOC Switch Name: LOMBARD MAIN DS1 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: LBRDILLM20T 🔧 Explore Switch(CLLI: LBRDILLMDS1))
630-953-7XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	LOMBARD	LBRDILLMDS1	N/A	Prefix Type: RBOC Switch Name: LOMBARD MAIN DS1 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: LBRDILLM20T 🔧 Explore Switch(CLLI: LBRDILLMDS1))
630-953-8XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	LOMBARD	LBRDILLMDS1	N/A	Prefix Type: RBOC Switch Name: LOMBARD MAIN DS1 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: LBRDILLM20T 🔧 Explore Switch(CLLI: LBRDILLMDS1))
630-953-9XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	LOMBARD	LBRDILLMDS1	N/A	Prefix Type: RBOC Switch Name: LOMBARD MAIN DS1 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: LBRDILLM20T 🔧 Explore Switch(CLLI: LBRDILLMDS1))
630-954	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	HINSDALE	OKBRILOADS0	00/00/0000	Prefix Type: RBOC Switch Name: OAKBROOK Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: LBRDILLM20T 🔧 Explore Switch(CLLI: OKBRILOADS0))
630-954 is split into 1,000-number blocks - detail below
630-954-0XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	HINSDALE	OKBRILOADS0	N/A	Prefix Type: RBOC Switch Name: OAKBROOK Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: LBRDILLM20T 🔧 Explore Switch(CLLI: OKBRILOADS0))
630-954-1XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	HINSDALE	OKBRILOADS0	N/A	Prefix Type: RBOC Switch Name: OAKBROOK Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: LBRDILLM20T 🔧 Explore Switch(CLLI: OKBRILOADS0))
630-954-2XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	HINSDALE	OKBRILOADS0	N/A	Prefix Type: RBOC Switch Name: OAKBROOK Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: LBRDILLM20T 🔧 Explore Switch(CLLI: OKBRILOADS0))
630-954-3XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	HINSDALE	OKBRILOADS0	N/A	Prefix Type: RBOC Switch Name: OAKBROOK Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: LBRDILLM20T 🔧 Explore Switch(CLLI: OKBRILOADS0))
630-954-4XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	HINSDALE	OKBRILOADS0	N/A	Prefix Type: RBOC Switch Name: OAKBROOK Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: LBRDILLM20T 🔧 Explore Switch(CLLI: OKBRILOADS0))
630-954-5XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	HINSDALE	OKBRILOADS0	N/A	Prefix Type: RBOC Switch Name: OAKBROOK Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: LBRDILLM20T 🔧 Explore Switch(CLLI: OKBRILOADS0))
630-954-6XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	HINSDALE	OKBRILOADS0	N/A	Prefix Type: RBOC Switch Name: OAKBROOK Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: LBRDILLM20T 🔧 Explore Switch(CLLI: OKBRILOADS0))
630-954-7XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	HINSDALE	OKBRILOADS0	N/A	Prefix Type: RBOC Switch Name: OAKBROOK Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: LBRDILLM20T 🔧 Explore Switch(CLLI: OKBRILOADS0))
630-954-8XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	HINSDALE	OKBRILOADS0	N/A	Prefix Type: RBOC Switch Name: OAKBROOK Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: LBRDILLM20T 🔧 Explore Switch(CLLI: OKBRILOADS0))
630-955	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	NAPERVILLE	NPVLILNEDS0	00/00/0000	Prefix Type: RBOC Switch Name: NAPERVILLE NE Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: LBRDILLM20T 🔧 Explore Switch(CLLI: NPVLILNEDS0))
630-955 is split into 1,000-number blocks - detail below
630-955-0XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	NAPERVILLE	NPVLILNEDS0	N/A	Prefix Type: RBOC Switch Name: NAPERVILLE NE Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: LBRDILLM20T 🔧 Explore Switch(CLLI: NPVLILNEDS0))
630-955-1XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	NAPERVILLE	NPVLILNEDS0	N/A	Prefix Type: RBOC Switch Name: NAPERVILLE NE Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: LBRDILLM20T 🔧 Explore Switch(CLLI: NPVLILNEDS0))
630-955-2XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	NAPERVILLE	NPVLILNEDS0	N/A	Prefix Type: RBOC Switch Name: NAPERVILLE NE Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: LBRDILLM20T 🔧 Explore Switch(CLLI: NPVLILNEDS0))
630-955-3XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	NAPERVILLE	NPVLILNEDS0	N/A	Prefix Type: RBOC Switch Name: NAPERVILLE NE Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: LBRDILLM20T 🔧 Explore Switch(CLLI: NPVLILNEDS0))
630-955-4XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	NAPERVILLE	NPVLILNEDS0	N/A	Prefix Type: RBOC Switch Name: NAPERVILLE NE Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: LBRDILLM20T 🔧 Explore Switch(CLLI: NPVLILNEDS0))
630-955-5XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	NAPERVILLE	NPVLILNEDS0	N/A	Prefix Type: RBOC Switch Name: NAPERVILLE NE Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: LBRDILLM20T 🔧 Explore Switch(CLLI: NPVLILNEDS0))
630-955-6XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	NAPERVILLE	NPVLILNEDS0	N/A	Prefix Type: RBOC Switch Name: NAPERVILLE NE Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: LBRDILLM20T 🔧 Explore Switch(CLLI: NPVLILNEDS0))
630-955-8XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	NAPERVILLE	NPVLILNEDS0	N/A	Prefix Type: RBOC Switch Name: NAPERVILLE NE Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: LBRDILLM20T 🔧 Explore Switch(CLLI: NPVLILNEDS0))
630-955-9XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	NAPERVILLE	NPVLILNEDS0	N/A	Prefix Type: RBOC Switch Name: NAPERVILLE NE Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: LBRDILLM20T 🔧 Explore Switch(CLLI: NPVLILNEDS0))
630-956	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	ELMHURST	EMHRILETDS0	01/31/2003	Prefix Type: RBOC Switch Name: ELMHURST Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: NCHCILNC20T 🔧 Explore Switch(CLLI: EMHRILETDS0))
630-956 is split into 1,000-number blocks - detail below
630-956-5XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	ELMHURST	EMHRILETDS0	01/31/2003	Prefix Type: RBOC Switch Name: ELMHURST Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: NCHCILNC20T 🔧 Explore Switch(CLLI: EMHRILETDS0))
630-956-7XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	ELMHURST	EMHRILETDS0	01/31/2003	Prefix Type: RBOC Switch Name: ELMHURST Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: NCHCILNC20T 🔧 Explore Switch(CLLI: EMHRILETDS0))
630-956-9XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	ELMHURST	EMHRILETDS0	01/31/2003	Prefix Type: RBOC Switch Name: ELMHURST Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: NCHCILNC20T 🔧 Explore Switch(CLLI: EMHRILETDS0))
630-960	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	DOWNERSGRV	DWGVILDGDS1	00/00/0000	Prefix Type: RBOC Switch Name: DOWNERS GROVE DS1 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: LBRDILLM20T 🔧 Explore Switch(CLLI: DWGVILDGDS1))
630-960 is split into 1,000-number blocks - detail below
630-960-0XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	DOWNERSGRV	DWGVILDGDS1	N/A	Prefix Type: RBOC Switch Name: DOWNERS GROVE DS1 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: LBRDILLM20T 🔧 Explore Switch(CLLI: DWGVILDGDS1))
630-960-1XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	DOWNERSGRV	DWGVILDGDS1	N/A	Prefix Type: RBOC Switch Name: DOWNERS GROVE DS1 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: LBRDILLM20T 🔧 Explore Switch(CLLI: DWGVILDGDS1))
630-960-2XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	DOWNERSGRV	DWGVILDGDS1	N/A	Prefix Type: RBOC Switch Name: DOWNERS GROVE DS1 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: LBRDILLM20T 🔧 Explore Switch(CLLI: DWGVILDGDS1))
630-960-3XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	DOWNERSGRV	DWGVILDGDS1	N/A	Prefix Type: RBOC Switch Name: DOWNERS GROVE DS1 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: LBRDILLM20T 🔧 Explore Switch(CLLI: DWGVILDGDS1))
630-960-4XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	DOWNERSGRV	DWGVILDGDS1	N/A	Prefix Type: RBOC Switch Name: DOWNERS GROVE DS1 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: LBRDILLM20T 🔧 Explore Switch(CLLI: DWGVILDGDS1))
630-960-5XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	DOWNERSGRV	DWGVILDGDS1	N/A	Prefix Type: RBOC Switch Name: DOWNERS GROVE DS1 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: LBRDILLM20T 🔧 Explore Switch(CLLI: DWGVILDGDS1))
630-960-7XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	DOWNERSGRV	DWGVILDGDS1	N/A	Prefix Type: RBOC Switch Name: DOWNERS GROVE DS1 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: LBRDILLM20T 🔧 Explore Switch(CLLI: DWGVILDGDS1))
630-960-8XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	DOWNERSGRV	DWGVILDGDS1	N/A	Prefix Type: RBOC Switch Name: DOWNERS GROVE DS1 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: LBRDILLM20T 🔧 Explore Switch(CLLI: DWGVILDGDS1))
630-960-9XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	DOWNERSGRV	DWGVILDGDS1	N/A	Prefix Type: RBOC Switch Name: DOWNERS GROVE DS1 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: LBRDILLM20T 🔧 Explore Switch(CLLI: DWGVILDGDS1))
630-961	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	NAPERVILLE	NPVLILNADS0	00/00/0000	Prefix Type: RBOC Switch Name: NAPERVILLE NA Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: LBRDILLM20T 🔧 Explore Switch(CLLI: NPVLILNADS0))
630-963	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	DOWNERSGRV	DWGVILDGDS1	00/00/0000	Prefix Type: RBOC Switch Name: DOWNERS GROVE DS1 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: LBRDILLM20T 🔧 Explore Switch(CLLI: DWGVILDGDS1))
630-964	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	DOWNERSGRV	DWGVILDGDS1	00/00/0000	Prefix Type: RBOC Switch Name: DOWNERS GROVE DS1 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: LBRDILLM20T 🔧 Explore Switch(CLLI: DWGVILDGDS1))
630-966	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	AURORA	AURRILARDS0	00/00/0000	Prefix Type: RBOC Switch Name: AURORA MAIN Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: LBRDILLM20T 🔧 Explore Switch(CLLI: AURRILARDS0))
630-968	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	DOWNERSGRV	DWGVILDGDS1	00/00/0000	Prefix Type: RBOC Switch Name: DOWNERS GROVE DS1 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: LBRDILLM20T 🔧 Explore Switch(CLLI: DWGVILDGDS1))
630-969	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	DOWNERSGRV	DWGVILDGDS1	00/00/0000	Prefix Type: RBOC Switch Name: DOWNERS GROVE DS1 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: LBRDILLM20T 🔧 Explore Switch(CLLI: DWGVILDGDS1))
630-971	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	DOWNERSGRV	DWGVILDGDS1	00/00/0000	Prefix Type: RBOC Switch Name: DOWNERS GROVE DS1 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: LBRDILLM20T 🔧 Explore Switch(CLLI: DWGVILDGDS1))
630-972	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	LEMONT	LEMTILLNDS0	00/00/0000	Prefix Type: RBOC Switch Name: LEMONT NORTH Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: LBRDILLM20T 🔧 Explore Switch(CLLI: LEMTILLNDS0))
630-978	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	AURORA	AURRILAEDS0	00/00/0000	Prefix Type: RBOC Switch Name: AURORA EAST DS0 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: LBRDILLM20T 🔧 Explore Switch(CLLI: AURRILAEDS0))
630-979	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	NAPERVILLE	NPVLILNEDS0	00/00/0000	Prefix Type: RBOC Switch Name: NAPERVILLE NE Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: LBRDILLM20T 🔧 Explore Switch(CLLI: NPVLILNEDS0))
630-980	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	ROSELLE	RSLLILRZDS0	00/00/0000	Prefix Type: RBOC Switch Name: ROSELLE Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILNE20T 🔧 Explore Switch(CLLI: RSLLILRZDS0))
630-983	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	NAPERVILLE	NPVLILNADS0	00/00/0000	Prefix Type: RBOC Switch Name: NAPERVILLE NA Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: LBRDILLM20T 🔧 Explore Switch(CLLI: NPVLILNADS0))
630-985	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	DOWNERSGRV	LEMTILLNDS0	00/00/0000	Prefix Type: RBOC Switch Name: LEMONT NORTH Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: LBRDILLM20T 🔧 Explore Switch(CLLI: LEMTILLNDS0))
630-986	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	HINSDALE	HNDLILHIDS0	00/00/0000	Prefix Type: RBOC Switch Name: HINSDALE Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: LBRDILLM20T 🔧 Explore Switch(CLLI: HNDLILHIDS0))
630-990	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	HINSDALE	OKBRILOADS0	00/00/0000	Prefix Type: RBOC Switch Name: OAKBROOK Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: LBRDILLM20T 🔧 Explore Switch(CLLI: OKBRILOADS0))
630-991 is split into 1,000-number blocks - detail below
630-991-4XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	DOWNERSGRV	DWGVILDGDS0	12/27/2005	Prefix Type: RBOC Switch Name: DOWNERS GROVE DS0 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: LBRDILLM20T 🔧 Explore Switch(CLLI: DWGVILDGDS0))
630-991-5XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	DOWNERSGRV	DWGVILDGDS0	12/27/2005	Prefix Type: RBOC Switch Name: DOWNERS GROVE DS0 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: LBRDILLM20T 🔧 Explore Switch(CLLI: DWGVILDGDS0))
630-993	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	ELMHURST	EMHRILETDS0	00/00/0000	Prefix Type: RBOC Switch Name: ELMHURST Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: NCHCILNC20T 🔧 Explore Switch(CLLI: EMHRILETDS0))
708-201	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	RIVERDALE	RVDLILRDDS0	00/00/0000	Prefix Type: RBOC Switch Name: RIVERDALE Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: JOLTILJO20T 🔧 Explore Switch(CLLI: RVDLILRDDS0))
708-202	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	BELLWOOD	HLSDILHDDS0	00/00/0000	Prefix Type: RBOC Switch Name: HILLSIDE Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: JOLTILJO20T 🔧 Explore Switch(CLLI: HLSDILHDDS0))
708-202 is split into 1,000-number blocks - detail below
708-202-1XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	BELLWOOD	HLSDILHDDS0	N/A	Prefix Type: RBOC Switch Name: HILLSIDE Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: JOLTILJO20T 🔧 Explore Switch(CLLI: HLSDILHDDS0))
708-202-2XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	BELLWOOD	HLSDILHDDS0	N/A	Prefix Type: RBOC Switch Name: HILLSIDE Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: JOLTILJO20T 🔧 Explore Switch(CLLI: HLSDILHDDS0))
708-202-3XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	BELLWOOD	HLSDILHDDS0	N/A	Prefix Type: RBOC Switch Name: HILLSIDE Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: JOLTILJO20T 🔧 Explore Switch(CLLI: HLSDILHDDS0))
708-202-4XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	BELLWOOD	HLSDILHDDS0	N/A	Prefix Type: RBOC Switch Name: HILLSIDE Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: JOLTILJO20T 🔧 Explore Switch(CLLI: HLSDILHDDS0))
708-202-5XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	BELLWOOD	HLSDILHDDS0	N/A	Prefix Type: RBOC Switch Name: HILLSIDE Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: JOLTILJO20T 🔧 Explore Switch(CLLI: HLSDILHDDS0))
708-202-6XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	BELLWOOD	HLSDILHDDS0	N/A	Prefix Type: RBOC Switch Name: HILLSIDE Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: JOLTILJO20T 🔧 Explore Switch(CLLI: HLSDILHDDS0))
708-202-7XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	BELLWOOD	HLSDILHDDS0	N/A	Prefix Type: RBOC Switch Name: HILLSIDE Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: JOLTILJO20T 🔧 Explore Switch(CLLI: HLSDILHDDS0))
708-202-8XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	BELLWOOD	HLSDILHDDS0	N/A	Prefix Type: RBOC Switch Name: HILLSIDE Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: JOLTILJO20T 🔧 Explore Switch(CLLI: HLSDILHDDS0))
708-206	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	HOMEWOOD	HMWDILHODS0	00/00/0000	Prefix Type: RBOC Switch Name: HOMEWOOD Switch Type: EWSD LATA: Chicago IL METRO (358) Tandem: JOLTILJO20T 🔧 Explore Switch(CLLI: HMWDILHODS0))
708-209	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	FOREST	OKPKILOPRP0	00/00/0000	Prefix Type: RBOC Switch Name: OAK PARK Switch Type: N/A LATA: Chicago IL METRO (358) Tandem: N/A 🔧 Explore Switch(CLLI: OKPKILOPRP0))
708-209 is split into 1,000-number blocks - detail below
708-209-1XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	FOREST	OKPKILOPRP0	N/A	Prefix Type: RBOC Switch Name: OAK PARK Switch Type: N/A LATA: Chicago IL METRO (358) Tandem: N/A 🔧 Explore Switch(CLLI: OKPKILOPRP0))
708-209-2XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	FOREST	OKPKILOPRP0	N/A	Prefix Type: RBOC Switch Name: OAK PARK Switch Type: N/A LATA: Chicago IL METRO (358) Tandem: N/A 🔧 Explore Switch(CLLI: OKPKILOPRP0))
708-209-3XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	FOREST	OKPKILOPRP0	N/A	Prefix Type: RBOC Switch Name: OAK PARK Switch Type: N/A LATA: Chicago IL METRO (358) Tandem: N/A 🔧 Explore Switch(CLLI: OKPKILOPRP0))
708-209-4XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	FOREST	OKPKILOPRP0	N/A	Prefix Type: RBOC Switch Name: OAK PARK Switch Type: N/A LATA: Chicago IL METRO (358) Tandem: N/A 🔧 Explore Switch(CLLI: OKPKILOPRP0))
708-210	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	HARVEY	HRVYILHADS0	00/00/0000	Prefix Type: RBOC Switch Name: HARVEY Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: JOLTILJO20T 🔧 Explore Switch(CLLI: HRVYILHADS0))
708-213	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	HOMEWOOD	HMWDILHODS0	09/29/2004	Prefix Type: RBOC Switch Name: HOMEWOOD Switch Type: EWSD LATA: Chicago IL METRO (358) Tandem: JOLTILJO20T 🔧 Explore Switch(CLLI: HMWDILHODS0))
708-213 is split into 1,000-number blocks - detail below
708-213-0XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	HOMEWOOD	HMWDILHODS0	09/29/2004	Prefix Type: RBOC Switch Name: HOMEWOOD Switch Type: EWSD LATA: Chicago IL METRO (358) Tandem: JOLTILJO20T 🔧 Explore Switch(CLLI: HMWDILHODS0))
708-213-1XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	HOMEWOOD	HMWDILHODS0	09/29/2004	Prefix Type: RBOC Switch Name: HOMEWOOD Switch Type: EWSD LATA: Chicago IL METRO (358) Tandem: JOLTILJO20T 🔧 Explore Switch(CLLI: HMWDILHODS0))
708-213-2XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	HOMEWOOD	HMWDILHODS0	09/29/2004	Prefix Type: RBOC Switch Name: HOMEWOOD Switch Type: EWSD LATA: Chicago IL METRO (358) Tandem: JOLTILJO20T 🔧 Explore Switch(CLLI: HMWDILHODS0))
708-213-3XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	HOMEWOOD	HMWDILHODS0	09/29/2004	Prefix Type: RBOC Switch Name: HOMEWOOD Switch Type: EWSD LATA: Chicago IL METRO (358) Tandem: JOLTILJO20T 🔧 Explore Switch(CLLI: HMWDILHODS0))
708-213-4XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	HOMEWOOD	HMWDILHODS0	09/29/2004	Prefix Type: RBOC Switch Name: HOMEWOOD Switch Type: EWSD LATA: Chicago IL METRO (358) Tandem: JOLTILJO20T 🔧 Explore Switch(CLLI: HMWDILHODS0))
708-213-5XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	HOMEWOOD	HMWDILHODS0	09/29/2004	Prefix Type: RBOC Switch Name: HOMEWOOD Switch Type: EWSD LATA: Chicago IL METRO (358) Tandem: JOLTILJO20T 🔧 Explore Switch(CLLI: HMWDILHODS0))
708-213-8XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	HOMEWOOD	HMWDILHODS0	01/18/2005	Prefix Type: RBOC Switch Name: HOMEWOOD Switch Type: EWSD LATA: Chicago IL METRO (358) Tandem: JOLTILJO20T 🔧 Explore Switch(CLLI: HMWDILHODS0))
708-216	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	MAYWOOD	BLWDILBWDS0	00/00/0000	Prefix Type: RBOC Switch Name: BELLWOOD DS0 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILST55T 🔧 Explore Switch(CLLI: BLWDILBWDS0))
708-222	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CICERO	CICRILCIDS0	00/00/0000	Prefix Type: RBOC Switch Name: CICERO DS0 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: LBRDILLM20T 🔧 Explore Switch(CLLI: CICRILCIDS0))
708-222 is split into 1,000-number blocks - detail below
708-222-0XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CICERO	CICRILCIDS0	N/A	Prefix Type: RBOC Switch Name: CICERO DS0 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: LBRDILLM20T 🔧 Explore Switch(CLLI: CICRILCIDS0))
708-222-1XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CICERO	CICRILCIDS0	N/A	Prefix Type: RBOC Switch Name: CICERO DS0 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: LBRDILLM20T 🔧 Explore Switch(CLLI: CICRILCIDS0))
708-222-2XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CICERO	CICRILCIDS0	N/A	Prefix Type: RBOC Switch Name: CICERO DS0 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: LBRDILLM20T 🔧 Explore Switch(CLLI: CICRILCIDS0))
708-222-3XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CICERO	CICRILCIDS0	N/A	Prefix Type: RBOC Switch Name: CICERO DS0 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: LBRDILLM20T 🔧 Explore Switch(CLLI: CICRILCIDS0))
708-222-4XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CICERO	CICRILCIDS0	N/A	Prefix Type: RBOC Switch Name: CICERO DS0 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: LBRDILLM20T 🔧 Explore Switch(CLLI: CICRILCIDS0))
708-222-5XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CICERO	CICRILCIDS0	N/A	Prefix Type: RBOC Switch Name: CICERO DS0 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: LBRDILLM20T 🔧 Explore Switch(CLLI: CICRILCIDS0))
708-222-6XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CICERO	CICRILCIDS0	N/A	Prefix Type: RBOC Switch Name: CICERO DS0 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: LBRDILLM20T 🔧 Explore Switch(CLLI: CICRILCIDS0))
708-222-8XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CICERO	CICRILCIDS0	N/A	Prefix Type: RBOC Switch Name: CICERO DS0 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: LBRDILLM20T 🔧 Explore Switch(CLLI: CICRILCIDS0))
708-222-9XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CICERO	CICRILCIDS0	N/A	Prefix Type: RBOC Switch Name: CICERO DS0 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: LBRDILLM20T 🔧 Explore Switch(CLLI: CICRILCIDS0))
708-225	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	HARVEY	HRVYILHADS0	00/00/0000	Prefix Type: RBOC Switch Name: HARVEY Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: JOLTILJO20T 🔧 Explore Switch(CLLI: HRVYILHADS0))
708-226	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	ORLAND	ORPKILORDS0	00/00/0000	Prefix Type: RBOC Switch Name: ORLAND PARK Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: JOLTILJO20T 🔧 Explore Switch(CLLI: ORPKILORDS0))
708-229	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	OAK LAWN	OKLWILOLDS0	00/00/0000	Prefix Type: RBOC Switch Name: OAK LAWN Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: JOLTILJO20T 🔧 Explore Switch(CLLI: OKLWILOLDS0))
708-232	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	HARVEY	HRVYILHADS0	07/01/2009	Prefix Type: RBOC Switch Name: HARVEY Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: JOLTILJO20T 🔧 Explore Switch(CLLI: HRVYILHADS0))
708-232 is split into 1,000-number blocks - detail below
708-232-4XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	HARVEY	HRVYILHADS0	07/02/2009	Prefix Type: RBOC Switch Name: HARVEY Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: JOLTILJO20T 🔧 Explore Switch(CLLI: HRVYILHADS0))
708-232-5XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	HARVEY	HRVYILHADS0	07/02/2009	Prefix Type: RBOC Switch Name: HARVEY Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: JOLTILJO20T 🔧 Explore Switch(CLLI: HRVYILHADS0))
708-233	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	OAK LAWN	HCHLILHHDS0	00/00/0000	Prefix Type: RBOC Switch Name: HICKORY HILLS Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: JOLTILJO20T 🔧 Explore Switch(CLLI: HCHLILHHDS0))
708-235	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	MONEE	MONEILGKRS0	00/00/0000	Prefix Type: RBOC Switch Name: GOVERNORS PK RS0 Switch Type: N/A LATA: Chicago IL METRO (358) Tandem: JOLTILJO20T 🔧 Explore Switch(CLLI: MONEILGKRS0))
708-235 is split into 1,000-number blocks - detail below
708-235-0XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	MONEE	MONEILGKRS0	N/A	Prefix Type: RBOC Switch Name: GOVERNORS PK RS0 Switch Type: N/A LATA: Chicago IL METRO (358) Tandem: JOLTILJO20T 🔧 Explore Switch(CLLI: MONEILGKRS0))
708-235-1XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	MONEE	MONEILGKRS0	N/A	Prefix Type: RBOC Switch Name: GOVERNORS PK RS0 Switch Type: N/A LATA: Chicago IL METRO (358) Tandem: JOLTILJO20T 🔧 Explore Switch(CLLI: MONEILGKRS0))
708-235-2XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	MONEE	MONEILGKRS0	N/A	Prefix Type: RBOC Switch Name: GOVERNORS PK RS0 Switch Type: N/A LATA: Chicago IL METRO (358) Tandem: JOLTILJO20T 🔧 Explore Switch(CLLI: MONEILGKRS0))
708-235-3XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	MONEE	MONEILGKRS0	N/A	Prefix Type: RBOC Switch Name: GOVERNORS PK RS0 Switch Type: N/A LATA: Chicago IL METRO (358) Tandem: JOLTILJO20T 🔧 Explore Switch(CLLI: MONEILGKRS0))
708-235-4XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	MONEE	MONEILGKRS0	N/A	Prefix Type: RBOC Switch Name: GOVERNORS PK RS0 Switch Type: N/A LATA: Chicago IL METRO (358) Tandem: JOLTILJO20T 🔧 Explore Switch(CLLI: MONEILGKRS0))
708-235-6XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	MONEE	MONEILGKRS0	N/A	Prefix Type: RBOC Switch Name: GOVERNORS PK RS0 Switch Type: N/A LATA: Chicago IL METRO (358) Tandem: JOLTILJO20T 🔧 Explore Switch(CLLI: MONEILGKRS0))
708-235-7XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	MONEE	MONEILGKRS0	N/A	Prefix Type: RBOC Switch Name: GOVERNORS PK RS0 Switch Type: N/A LATA: Chicago IL METRO (358) Tandem: JOLTILJO20T 🔧 Explore Switch(CLLI: MONEILGKRS0))
708-235-8XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	MONEE	MONEILGKRS0	N/A	Prefix Type: RBOC Switch Name: GOVERNORS PK RS0 Switch Type: N/A LATA: Chicago IL METRO (358) Tandem: JOLTILJO20T 🔧 Explore Switch(CLLI: MONEILGKRS0))
708-236	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	BELLWOOD	HLSDILHDDS0	00/00/0000	Prefix Type: RBOC Switch Name: HILLSIDE Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: JOLTILJO20T 🔧 Explore Switch(CLLI: HLSDILHDDS0))
708-237	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	OAK LAWN	HCHLILHHDS0	00/00/0000	Prefix Type: RBOC Switch Name: HICKORY HILLS Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: JOLTILJO20T 🔧 Explore Switch(CLLI: HCHLILHHDS0))
708-237 is split into 1,000-number blocks - detail below
708-237-0XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	OAK LAWN	HCHLILHHDS0	N/A	Prefix Type: RBOC Switch Name: HICKORY HILLS Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: JOLTILJO20T 🔧 Explore Switch(CLLI: HCHLILHHDS0))
708-237-1XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	OAK LAWN	HCHLILHHDS0	N/A	Prefix Type: RBOC Switch Name: HICKORY HILLS Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: JOLTILJO20T 🔧 Explore Switch(CLLI: HCHLILHHDS0))
708-237-3XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	OAK LAWN	HCHLILHHDS0	N/A	Prefix Type: RBOC Switch Name: HICKORY HILLS Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: JOLTILJO20T 🔧 Explore Switch(CLLI: HCHLILHHDS0))
708-237-4XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	OAK LAWN	HCHLILHHDS0	N/A	Prefix Type: RBOC Switch Name: HICKORY HILLS Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: JOLTILJO20T 🔧 Explore Switch(CLLI: HCHLILHHDS0))
708-237-5XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	OAK LAWN	HCHLILHHDS0	N/A	Prefix Type: RBOC Switch Name: HICKORY HILLS Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: JOLTILJO20T 🔧 Explore Switch(CLLI: HCHLILHHDS0))
708-237-6XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	OAK LAWN	HCHLILHHDS0	N/A	Prefix Type: RBOC Switch Name: HICKORY HILLS Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: JOLTILJO20T 🔧 Explore Switch(CLLI: HCHLILHHDS0))
708-239	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	BLUEISLAND	BLISILBIDS0	00/00/0000	Prefix Type: RBOC Switch Name: BLUE ISLAND Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: JOLTILJO20T 🔧 Explore Switch(CLLI: BLISILBIDS0))
708-245	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	LA GRANGE	LGRCILLGDS0	09/24/2004	Prefix Type: RBOC Switch Name: LA GRANGE DS0 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: JOLTILJO20T 🔧 Explore Switch(CLLI: LGRCILLGDS0))
708-245 is split into 1,000-number blocks - detail below
708-245-0XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	LA GRANGE	LGRCILLGDS0	09/27/2004	Prefix Type: RBOC Switch Name: LA GRANGE DS0 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: JOLTILJO20T 🔧 Explore Switch(CLLI: LGRCILLGDS0))
708-245-1XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	LA GRANGE	LGRCILLGDS0	09/27/2004	Prefix Type: RBOC Switch Name: LA GRANGE DS0 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: JOLTILJO20T 🔧 Explore Switch(CLLI: LGRCILLGDS0))
708-245-2XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	LA GRANGE	LGRCILLGDS0	09/27/2004	Prefix Type: RBOC Switch Name: LA GRANGE DS0 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: JOLTILJO20T 🔧 Explore Switch(CLLI: LGRCILLGDS0))
708-245-3XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	LA GRANGE	LGRCILLGDS0	09/27/2004	Prefix Type: RBOC Switch Name: LA GRANGE DS0 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: JOLTILJO20T 🔧 Explore Switch(CLLI: LGRCILLGDS0))
708-245-4XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	LA GRANGE	LGRCILLGDS0	09/27/2004	Prefix Type: RBOC Switch Name: LA GRANGE DS0 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: JOLTILJO20T 🔧 Explore Switch(CLLI: LGRCILLGDS0))
708-245-5XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	LA GRANGE	LGRCILLGDS0	09/27/2004	Prefix Type: RBOC Switch Name: LA GRANGE DS0 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: JOLTILJO20T 🔧 Explore Switch(CLLI: LGRCILLGDS0))
708-245-6XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	LA GRANGE	LGRCILLGDS0	09/27/2004	Prefix Type: RBOC Switch Name: LA GRANGE DS0 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: JOLTILJO20T 🔧 Explore Switch(CLLI: LGRCILLGDS0))
708-245-7XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	LA GRANGE	LGRCILLGDS0	09/27/2004	Prefix Type: RBOC Switch Name: LA GRANGE DS0 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: JOLTILJO20T 🔧 Explore Switch(CLLI: LGRCILLGDS0))
708-245-8XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	LA GRANGE	LGRCILLGDS0	09/27/2004	Prefix Type: RBOC Switch Name: LA GRANGE DS0 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: JOLTILJO20T 🔧 Explore Switch(CLLI: LGRCILLGDS0))
708-245-9XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	LA GRANGE	LGRCILLGDS0	09/27/2004	Prefix Type: RBOC Switch Name: LA GRANGE DS0 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: JOLTILJO20T 🔧 Explore Switch(CLLI: LGRCILLGDS0))
708-246	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	WESTERNSPG	LGRCILLGDS0	00/00/0000	Prefix Type: RBOC Switch Name: LA GRANGE DS0 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: JOLTILJO20T 🔧 Explore Switch(CLLI: LGRCILLGDS0))
708-258	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	PEOTONE	PETNILPTRS0	00/00/0000	Prefix Type: RBOC Switch Name: PEOTONE Switch Type: N/A LATA: Chicago IL METRO (358) Tandem: JOLTILJO20T 🔧 Explore Switch(CLLI: PETNILPTRS0))
708-258 is split into 1,000-number blocks - detail below
708-258-0XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	PEOTONE	PETNILPTRS0	N/A	Prefix Type: RBOC Switch Name: PEOTONE Switch Type: N/A LATA: Chicago IL METRO (358) Tandem: JOLTILJO20T 🔧 Explore Switch(CLLI: PETNILPTRS0))
708-258-3XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	PEOTONE	PETNILPTRS0	N/A	Prefix Type: RBOC Switch Name: PEOTONE Switch Type: N/A LATA: Chicago IL METRO (358) Tandem: JOLTILJO20T 🔧 Explore Switch(CLLI: PETNILPTRS0))
708-258-6XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	PEOTONE	PETNILPTRS0	N/A	Prefix Type: RBOC Switch Name: PEOTONE Switch Type: N/A LATA: Chicago IL METRO (358) Tandem: JOLTILJO20T 🔧 Explore Switch(CLLI: PETNILPTRS0))
708-258-9XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	PEOTONE	PETNILPTRS0	N/A	Prefix Type: RBOC Switch Name: PEOTONE Switch Type: N/A LATA: Chicago IL METRO (358) Tandem: JOLTILJO20T 🔧 Explore Switch(CLLI: PETNILPTRS0))
708-272 is split into 1,000-number blocks - detail below
708-272-4XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	BLUEISLAND	BLISILBIDS0	05/28/2001	Prefix Type: RBOC Switch Name: BLUE ISLAND Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: JOLTILJO20T 🔧 Explore Switch(CLLI: BLISILBIDS0))
708-272-5XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	BLUEISLAND	BLISILBIDS0	05/28/2001	Prefix Type: RBOC Switch Name: BLUE ISLAND Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: JOLTILJO20T 🔧 Explore Switch(CLLI: BLISILBIDS0))
708-272-6XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	BLUEISLAND	BLISILBIDS0	05/28/2001	Prefix Type: RBOC Switch Name: BLUE ISLAND Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: JOLTILJO20T 🔧 Explore Switch(CLLI: BLISILBIDS0))
708-283	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICAGOHTS	PKFSILPFDS0	00/00/0000	Prefix Type: RBOC Switch Name: PARK FOREST Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: JOLTILJO20T 🔧 Explore Switch(CLLI: PKFSILPFDS0))
708-293	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	BLUEISLAND	BLISILBIDS0	00/00/0000	Prefix Type: RBOC Switch Name: BLUE ISLAND Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: JOLTILJO20T 🔧 Explore Switch(CLLI: BLISILBIDS0))
708-293 is split into 1,000-number blocks - detail below
708-293-0XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	BLUEISLAND	BLISILBIDS0	N/A	Prefix Type: RBOC Switch Name: BLUE ISLAND Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: JOLTILJO20T 🔧 Explore Switch(CLLI: BLISILBIDS0))
708-293-1XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	BLUEISLAND	BLISILBIDS0	N/A	Prefix Type: RBOC Switch Name: BLUE ISLAND Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: JOLTILJO20T 🔧 Explore Switch(CLLI: BLISILBIDS0))
708-293-2XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	BLUEISLAND	BLISILBIDS0	N/A	Prefix Type: RBOC Switch Name: BLUE ISLAND Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: JOLTILJO20T 🔧 Explore Switch(CLLI: BLISILBIDS0))
708-293-3XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	BLUEISLAND	BLISILBIDS0	N/A	Prefix Type: RBOC Switch Name: BLUE ISLAND Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: JOLTILJO20T 🔧 Explore Switch(CLLI: BLISILBIDS0))
708-293-4XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	BLUEISLAND	BLISILBIDS0	N/A	Prefix Type: RBOC Switch Name: BLUE ISLAND Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: JOLTILJO20T 🔧 Explore Switch(CLLI: BLISILBIDS0))
708-293-5XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	BLUEISLAND	BLISILBIDS0	N/A	Prefix Type: RBOC Switch Name: BLUE ISLAND Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: JOLTILJO20T 🔧 Explore Switch(CLLI: BLISILBIDS0))
708-293-6XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	BLUEISLAND	BLISILBIDS0	N/A	Prefix Type: RBOC Switch Name: BLUE ISLAND Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: JOLTILJO20T 🔧 Explore Switch(CLLI: BLISILBIDS0))
708-293-7XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	BLUEISLAND	BLISILBIDS0	N/A	Prefix Type: RBOC Switch Name: BLUE ISLAND Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: JOLTILJO20T 🔧 Explore Switch(CLLI: BLISILBIDS0))
708-293-8XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	BLUEISLAND	BLISILBIDS0	N/A	Prefix Type: RBOC Switch Name: BLUE ISLAND Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: JOLTILJO20T 🔧 Explore Switch(CLLI: BLISILBIDS0))
708-301	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	ORLAND	ORPKILOWDS0	00/00/0000	Prefix Type: RBOC Switch Name: ORLAND PARK WEST DS0 Switch Type: EWSD LATA: Chicago IL METRO (358) Tandem: JOLTILJO20T 🔧 Explore Switch(CLLI: ORPKILOWDS0))
708-326 is split into 1,000-number blocks - detail below
708-326-3XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	MOKENA	MOKNILMERS1	10/21/2002	Prefix Type: RBOC Switch Name: MOKENA RS1 Switch Type: N/A LATA: Chicago IL METRO (358) Tandem: JOLTILJO20T 🔧 Explore Switch(CLLI: MOKNILMERS1))
708-326-4XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	MOKENA	MOKNILMERS1	10/21/2002	Prefix Type: RBOC Switch Name: MOKENA RS1 Switch Type: N/A LATA: Chicago IL METRO (358) Tandem: JOLTILJO20T 🔧 Explore Switch(CLLI: MOKNILMERS1))
708-327	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	MAYWOOD	BLWDILBWDS0	00/00/0000	Prefix Type: RBOC Switch Name: BELLWOOD DS0 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILST55T 🔧 Explore Switch(CLLI: BLWDILBWDS0))
708-331	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	HARVEY	HRVYILHADS0	00/00/0000	Prefix Type: RBOC Switch Name: HARVEY Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: JOLTILJO20T 🔧 Explore Switch(CLLI: HRVYILHADS0))
708-333	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	HARVEY	HRVYILHADS0	00/00/0000	Prefix Type: RBOC Switch Name: HARVEY Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: JOLTILJO20T 🔧 Explore Switch(CLLI: HRVYILHADS0))
708-335	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	HARVEY	HMWDILHODS0	00/00/0000	Prefix Type: RBOC Switch Name: HOMEWOOD Switch Type: EWSD LATA: Chicago IL METRO (358) Tandem: JOLTILJO20T 🔧 Explore Switch(CLLI: HMWDILHODS0))
708-335 is split into 1,000-number blocks - detail below
708-335-0XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	HARVEY	HMWDILHODS0	N/A	Prefix Type: RBOC Switch Name: HOMEWOOD Switch Type: EWSD LATA: Chicago IL METRO (358) Tandem: JOLTILJO20T 🔧 Explore Switch(CLLI: HMWDILHODS0))
708-335-1XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	HARVEY	HMWDILHODS0	N/A	Prefix Type: RBOC Switch Name: HOMEWOOD Switch Type: EWSD LATA: Chicago IL METRO (358) Tandem: JOLTILJO20T 🔧 Explore Switch(CLLI: HMWDILHODS0))
708-335-2XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	HARVEY	HMWDILHODS0	N/A	Prefix Type: RBOC Switch Name: HOMEWOOD Switch Type: EWSD LATA: Chicago IL METRO (358) Tandem: JOLTILJO20T 🔧 Explore Switch(CLLI: HMWDILHODS0))
708-335-3XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	HARVEY	HMWDILHODS0	N/A	Prefix Type: RBOC Switch Name: HOMEWOOD Switch Type: EWSD LATA: Chicago IL METRO (358) Tandem: JOLTILJO20T 🔧 Explore Switch(CLLI: HMWDILHODS0))
708-335-4XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	HARVEY	HMWDILHODS0	N/A	Prefix Type: RBOC Switch Name: HOMEWOOD Switch Type: EWSD LATA: Chicago IL METRO (358) Tandem: JOLTILJO20T 🔧 Explore Switch(CLLI: HMWDILHODS0))
708-335-5XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	HARVEY	HMWDILHODS0	N/A	Prefix Type: RBOC Switch Name: HOMEWOOD Switch Type: EWSD LATA: Chicago IL METRO (358) Tandem: JOLTILJO20T 🔧 Explore Switch(CLLI: HMWDILHODS0))
708-335-6XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	HARVEY	HMWDILHODS0	N/A	Prefix Type: RBOC Switch Name: HOMEWOOD Switch Type: EWSD LATA: Chicago IL METRO (358) Tandem: JOLTILJO20T 🔧 Explore Switch(CLLI: HMWDILHODS0))
708-335-9XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	HARVEY	HMWDILHODS0	N/A	Prefix Type: RBOC Switch Name: HOMEWOOD Switch Type: EWSD LATA: Chicago IL METRO (358) Tandem: JOLTILJO20T 🔧 Explore Switch(CLLI: HMWDILHODS0))
708-338	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	MAYWOOD	BLWDILBWDS0	00/00/0000	Prefix Type: RBOC Switch Name: BELLWOOD DS0 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILST55T 🔧 Explore Switch(CLLI: BLWDILBWDS0))
708-339	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	HARVEY	HRVYILHADS0	00/00/0000	Prefix Type: RBOC Switch Name: HARVEY Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: JOLTILJO20T 🔧 Explore Switch(CLLI: HRVYILHADS0))
708-342	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	TINLEYPARK	TNPKILTPDS0	00/00/0000	Prefix Type: RBOC Switch Name: TINLEY PARK Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: JOLTILJO20T 🔧 Explore Switch(CLLI: TNPKILTPDS0))
708-343	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	MAYWOOD	BLWDILBWDS0	00/00/0000	Prefix Type: RBOC Switch Name: BELLWOOD DS0 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILST55T 🔧 Explore Switch(CLLI: BLWDILBWDS0))
708-344	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	MAYWOOD	BLWDILBWDS0	00/00/0000	Prefix Type: RBOC Switch Name: BELLWOOD DS0 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILST55T 🔧 Explore Switch(CLLI: BLWDILBWDS0))
708-345	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	MAYWOOD	BLWDILBWDS0	00/00/0000	Prefix Type: RBOC Switch Name: BELLWOOD DS0 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILST55T 🔧 Explore Switch(CLLI: BLWDILBWDS0))
708-346	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	OAK LAWN	OKLWILOLDS0	00/00/0000	Prefix Type: RBOC Switch Name: OAK LAWN Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: JOLTILJO20T 🔧 Explore Switch(CLLI: OKLWILOLDS0))
708-346 is split into 1,000-number blocks - detail below
708-346-0XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	OAK LAWN	OKLWILOLDS0	N/A	Prefix Type: RBOC Switch Name: OAK LAWN Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: JOLTILJO20T 🔧 Explore Switch(CLLI: OKLWILOLDS0))
708-346-1XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	OAK LAWN	OKLWILOLDS0	N/A	Prefix Type: RBOC Switch Name: OAK LAWN Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: JOLTILJO20T 🔧 Explore Switch(CLLI: OKLWILOLDS0))
708-346-2XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	OAK LAWN	OKLWILOLDS0	N/A	Prefix Type: RBOC Switch Name: OAK LAWN Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: JOLTILJO20T 🔧 Explore Switch(CLLI: OKLWILOLDS0))
708-346-3XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	OAK LAWN	OKLWILOLDS0	N/A	Prefix Type: RBOC Switch Name: OAK LAWN Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: JOLTILJO20T 🔧 Explore Switch(CLLI: OKLWILOLDS0))
708-346-6XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	OAK LAWN	OKLWILOLDS0	N/A	Prefix Type: RBOC Switch Name: OAK LAWN Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: JOLTILJO20T 🔧 Explore Switch(CLLI: OKLWILOLDS0))
708-346-7XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	OAK LAWN	OKLWILOLDS0	N/A	Prefix Type: RBOC Switch Name: OAK LAWN Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: JOLTILJO20T 🔧 Explore Switch(CLLI: OKLWILOLDS0))
708-346-8XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	OAK LAWN	OKLWILOLDS0	N/A	Prefix Type: RBOC Switch Name: OAK LAWN Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: JOLTILJO20T 🔧 Explore Switch(CLLI: OKLWILOLDS0))
708-346-9XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	OAK LAWN	OKLWILOLDS0	N/A	Prefix Type: RBOC Switch Name: OAK LAWN Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: JOLTILJO20T 🔧 Explore Switch(CLLI: OKLWILOLDS0))
708-349	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	ORLAND	ORPKILORDS0	00/00/0000	Prefix Type: RBOC Switch Name: ORLAND PARK Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: JOLTILJO20T 🔧 Explore Switch(CLLI: ORPKILORDS0))
708-352	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	LA GRANGE	LGRCILLGDS0	00/00/0000	Prefix Type: RBOC Switch Name: LA GRANGE DS0 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: JOLTILJO20T 🔧 Explore Switch(CLLI: LGRCILLGDS0))
708-354	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	LA GRANGE	LGRCILLGDS0	00/00/0000	Prefix Type: RBOC Switch Name: LA GRANGE DS0 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: JOLTILJO20T 🔧 Explore Switch(CLLI: LGRCILLGDS0))
708-358	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	OAK PARK	OKPKILOPRP0	00/00/0000	Prefix Type: RBOC Switch Name: OAK PARK Switch Type: N/A LATA: Chicago IL METRO (358) Tandem: N/A 🔧 Explore Switch(CLLI: OKPKILOPRP0))
708-358 is split into 1,000-number blocks - detail below
708-358-0XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	OAK PARK	OKPKILOPRP0	N/A	Prefix Type: RBOC Switch Name: OAK PARK Switch Type: N/A LATA: Chicago IL METRO (358) Tandem: N/A 🔧 Explore Switch(CLLI: OKPKILOPRP0))
708-358-1XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	OAK PARK	OKPKILOPRP0	N/A	Prefix Type: RBOC Switch Name: OAK PARK Switch Type: N/A LATA: Chicago IL METRO (358) Tandem: N/A 🔧 Explore Switch(CLLI: OKPKILOPRP0))
708-358-2XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	OAK PARK	OKPKILOPRP0	N/A	Prefix Type: RBOC Switch Name: OAK PARK Switch Type: N/A LATA: Chicago IL METRO (358) Tandem: N/A 🔧 Explore Switch(CLLI: OKPKILOPRP0))
708-358-3XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	OAK PARK	OKPKILOPRP0	N/A	Prefix Type: RBOC Switch Name: OAK PARK Switch Type: N/A LATA: Chicago IL METRO (358) Tandem: N/A 🔧 Explore Switch(CLLI: OKPKILOPRP0))
708-358-5XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	OAK PARK	OKPKILOPRP0	N/A	Prefix Type: RBOC Switch Name: OAK PARK Switch Type: N/A LATA: Chicago IL METRO (358) Tandem: N/A 🔧 Explore Switch(CLLI: OKPKILOPRP0))
708-358-8XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	OAK PARK	OKPKILOPRP0	N/A	Prefix Type: RBOC Switch Name: OAK PARK Switch Type: N/A LATA: Chicago IL METRO (358) Tandem: N/A 🔧 Explore Switch(CLLI: OKPKILOPRP0))
708-361	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	PALOS PARK	PLPKILPPDS0	00/00/0000	Prefix Type: RBOC Switch Name: PALOS PARK Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: JOLTILJO20T 🔧 Explore Switch(CLLI: PLPKILPPDS0))
708-364	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	ORLAND	ORPKILORDS0	00/00/0000	Prefix Type: RBOC Switch Name: ORLAND PARK Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: JOLTILJO20T 🔧 Explore Switch(CLLI: ORPKILORDS0))
708-364 is split into 1,000-number blocks - detail below
708-364-0XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	ORLAND	ORPKILORDS0	N/A	Prefix Type: RBOC Switch Name: ORLAND PARK Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: JOLTILJO20T 🔧 Explore Switch(CLLI: ORPKILORDS0))
708-364-1XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	ORLAND	ORPKILORDS0	N/A	Prefix Type: RBOC Switch Name: ORLAND PARK Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: JOLTILJO20T 🔧 Explore Switch(CLLI: ORPKILORDS0))
708-364-2XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	ORLAND	ORPKILORDS0	N/A	Prefix Type: RBOC Switch Name: ORLAND PARK Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: JOLTILJO20T 🔧 Explore Switch(CLLI: ORPKILORDS0))
708-364-3XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	ORLAND	ORPKILORDS0	N/A	Prefix Type: RBOC Switch Name: ORLAND PARK Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: JOLTILJO20T 🔧 Explore Switch(CLLI: ORPKILORDS0))
708-364-4XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	ORLAND	ORPKILORDS0	N/A	Prefix Type: RBOC Switch Name: ORLAND PARK Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: JOLTILJO20T 🔧 Explore Switch(CLLI: ORPKILORDS0))
708-364-6XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	ORLAND	ORPKILORDS0	N/A	Prefix Type: RBOC Switch Name: ORLAND PARK Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: JOLTILJO20T 🔧 Explore Switch(CLLI: ORPKILORDS0))
708-364-7XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	ORLAND	ORPKILORDS0	N/A	Prefix Type: RBOC Switch Name: ORLAND PARK Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: JOLTILJO20T 🔧 Explore Switch(CLLI: ORPKILORDS0))
708-364-8XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	ORLAND	ORPKILORDS0	N/A	Prefix Type: RBOC Switch Name: ORLAND PARK Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: JOLTILJO20T 🔧 Explore Switch(CLLI: ORPKILORDS0))
708-364-9XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	ORLAND	ORPKILORDS0	N/A	Prefix Type: RBOC Switch Name: ORLAND PARK Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: JOLTILJO20T 🔧 Explore Switch(CLLI: ORPKILORDS0))
708-366	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	FOREST	OKPKILOPRP0	00/00/0000	Prefix Type: RBOC Switch Name: OAK PARK Switch Type: N/A LATA: Chicago IL METRO (358) Tandem: N/A 🔧 Explore Switch(CLLI: OKPKILOPRP0))
708-367	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CRETE	CRETILCMDS0	00/00/0000	Prefix Type: RBOC Switch Name: CRETE Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: JOLTILJO20T 🔧 Explore Switch(CLLI: CRETILCMDS0))
708-367 is split into 1,000-number blocks - detail below
708-367-0XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CRETE	CRETILCMDS0	N/A	Prefix Type: RBOC Switch Name: CRETE Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: JOLTILJO20T 🔧 Explore Switch(CLLI: CRETILCMDS0))
708-367-1XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CRETE	CRETILCMDS0	N/A	Prefix Type: RBOC Switch Name: CRETE Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: JOLTILJO20T 🔧 Explore Switch(CLLI: CRETILCMDS0))
708-367-2XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CRETE	CRETILCMDS0	N/A	Prefix Type: RBOC Switch Name: CRETE Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: JOLTILJO20T 🔧 Explore Switch(CLLI: CRETILCMDS0))
708-367-4XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CRETE	CRETILCMDS0	N/A	Prefix Type: RBOC Switch Name: CRETE Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: JOLTILJO20T 🔧 Explore Switch(CLLI: CRETILCMDS0))
708-367-8XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CRETE	CRETILCMDS0	N/A	Prefix Type: RBOC Switch Name: CRETE Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: JOLTILJO20T 🔧 Explore Switch(CLLI: CRETILCMDS0))
708-371	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	BLUEISLAND	BLISILBIDS0	00/00/0000	Prefix Type: RBOC Switch Name: BLUE ISLAND Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: JOLTILJO20T 🔧 Explore Switch(CLLI: BLISILBIDS0))
708-383	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	OAK PARK	OKPKILOPRP0	00/00/0000	Prefix Type: RBOC Switch Name: OAK PARK Switch Type: N/A LATA: Chicago IL METRO (358) Tandem: N/A 🔧 Explore Switch(CLLI: OKPKILOPRP0))
708-384 is split into 1,000-number blocks - detail below
708-384-5XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	BELLWOOD	HLSDILHDDS0	02/28/2001	Prefix Type: RBOC Switch Name: HILLSIDE Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: JOLTILJO20T 🔧 Explore Switch(CLLI: HLSDILHDDS0))
708-385	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	BLUEISLAND	BLISILBIDS0	00/00/0000	Prefix Type: RBOC Switch Name: BLUE ISLAND Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: JOLTILJO20T 🔧 Explore Switch(CLLI: BLISILBIDS0))
708-386	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	OAK PARK	OKPKILOPRP0	00/00/0000	Prefix Type: RBOC Switch Name: OAK PARK Switch Type: N/A LATA: Chicago IL METRO (358) Tandem: N/A 🔧 Explore Switch(CLLI: OKPKILOPRP0))
708-387	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	BROOKFIELD	LGRCILLGDS0	00/00/0000	Prefix Type: RBOC Switch Name: LA GRANGE DS0 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: JOLTILJO20T 🔧 Explore Switch(CLLI: LGRCILLGDS0))
708-388	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	BLUEISLAND	BLISILBIDS0	00/00/0000	Prefix Type: RBOC Switch Name: BLUE ISLAND Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: JOLTILJO20T 🔧 Explore Switch(CLLI: BLISILBIDS0))
708-389	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	BLUEISLAND	BLISILBIDS0	00/00/0000	Prefix Type: RBOC Switch Name: BLUE ISLAND Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: JOLTILJO20T 🔧 Explore Switch(CLLI: BLISILBIDS0))
708-396	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	BLUEISLAND	BLISILBIDS0	00/00/0000	Prefix Type: RBOC Switch Name: BLUE ISLAND Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: JOLTILJO20T 🔧 Explore Switch(CLLI: BLISILBIDS0))
708-403	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	ORLAND	ORPKILORDS0	00/00/0000	Prefix Type: RBOC Switch Name: ORLAND PARK Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: JOLTILJO20T 🔧 Explore Switch(CLLI: ORPKILORDS0))
708-409	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	MAYWOOD	HLSDILHDDS0	00/00/0000	Prefix Type: RBOC Switch Name: HILLSIDE Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: JOLTILJO20T 🔧 Explore Switch(CLLI: HLSDILHDDS0))
708-410	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	MAYWOOD	BLWDILBWDS0	00/00/0000	Prefix Type: RBOC Switch Name: BELLWOOD DS0 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILST55T 🔧 Explore Switch(CLLI: BLWDILBWDS0))
708-410 is split into 1,000-number blocks - detail below
708-410-0XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	MAYWOOD	BLWDILBWDS0	N/A	Prefix Type: RBOC Switch Name: BELLWOOD DS0 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILST55T 🔧 Explore Switch(CLLI: BLWDILBWDS0))
708-410-1XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	MAYWOOD	BLWDILBWDS0	N/A	Prefix Type: RBOC Switch Name: BELLWOOD DS0 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILST55T 🔧 Explore Switch(CLLI: BLWDILBWDS0))
708-410-2XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	MAYWOOD	BLWDILBWDS0	N/A	Prefix Type: RBOC Switch Name: BELLWOOD DS0 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILST55T 🔧 Explore Switch(CLLI: BLWDILBWDS0))
708-410-3XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	MAYWOOD	BLWDILBWDS0	N/A	Prefix Type: RBOC Switch Name: BELLWOOD DS0 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILST55T 🔧 Explore Switch(CLLI: BLWDILBWDS0))
708-410-4XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	MAYWOOD	BLWDILBWDS0	N/A	Prefix Type: RBOC Switch Name: BELLWOOD DS0 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILST55T 🔧 Explore Switch(CLLI: BLWDILBWDS0))
708-410-5XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	MAYWOOD	BLWDILBWDS0	N/A	Prefix Type: RBOC Switch Name: BELLWOOD DS0 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILST55T 🔧 Explore Switch(CLLI: BLWDILBWDS0))
708-410-6XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	MAYWOOD	BLWDILBWDS0	N/A	Prefix Type: RBOC Switch Name: BELLWOOD DS0 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILST55T 🔧 Explore Switch(CLLI: BLWDILBWDS0))
708-410-7XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	MAYWOOD	BLWDILBWDS0	N/A	Prefix Type: RBOC Switch Name: BELLWOOD DS0 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILST55T 🔧 Explore Switch(CLLI: BLWDILBWDS0))
708-410-8XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	MAYWOOD	BLWDILBWDS0	N/A	Prefix Type: RBOC Switch Name: BELLWOOD DS0 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILST55T 🔧 Explore Switch(CLLI: BLWDILBWDS0))
708-418	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	LANSING	CMCYILCCDS0	00/00/0000	Prefix Type: RBOC Switch Name: CALUMET CITY DS0 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: JOLTILJO20T 🔧 Explore Switch(CLLI: CMCYILCCDS0))
708-422	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	OAK LAWN	OKLWILOLDS0	00/00/0000	Prefix Type: RBOC Switch Name: OAK LAWN Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: JOLTILJO20T 🔧 Explore Switch(CLLI: OKLWILOLDS0))
708-423	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	OAK LAWN	OKLWILOLDS0	00/00/0000	Prefix Type: RBOC Switch Name: OAK LAWN Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: JOLTILJO20T 🔧 Explore Switch(CLLI: OKLWILOLDS0))
708-424	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	OAK LAWN	OKLWILOLDS0	00/00/0000	Prefix Type: RBOC Switch Name: OAK LAWN Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: JOLTILJO20T 🔧 Explore Switch(CLLI: OKLWILOLDS0))
708-425	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	OAK LAWN	OKLWILOLDS0	00/00/0000	Prefix Type: RBOC Switch Name: OAK LAWN Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: JOLTILJO20T 🔧 Explore Switch(CLLI: OKLWILOLDS0))
708-429	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	TINLEYPARK	TNPKILTPDS0	00/00/0000	Prefix Type: RBOC Switch Name: TINLEY PARK Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: JOLTILJO20T 🔧 Explore Switch(CLLI: TNPKILTPDS0))
708-430	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	OAK LAWN	HCHLILHHDS0	00/00/0000	Prefix Type: RBOC Switch Name: HICKORY HILLS Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: JOLTILJO20T 🔧 Explore Switch(CLLI: HCHLILHHDS0))
708-442	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	RIVERSIDE	CICRILCIDS0	00/00/0000	Prefix Type: RBOC Switch Name: CICERO DS0 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: LBRDILLM20T 🔧 Explore Switch(CLLI: CICRILCIDS0))
708-443	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	RIVERSIDE	CICRILCIDS0	00/00/0000	Prefix Type: RBOC Switch Name: CICERO DS0 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: LBRDILLM20T 🔧 Explore Switch(CLLI: CICRILCIDS0))
708-443 is split into 1,000-number blocks - detail below
708-443-5XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	RIVERSIDE	CICRILCIDS0	N/A	Prefix Type: RBOC Switch Name: CICERO DS0 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: LBRDILLM20T 🔧 Explore Switch(CLLI: CICRILCIDS0))
708-444	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	TINLEYPARK	TNPKILTPDS0	00/00/0000	Prefix Type: RBOC Switch Name: TINLEY PARK Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: JOLTILJO20T 🔧 Explore Switch(CLLI: TNPKILTPDS0))
708-444 is split into 1,000-number blocks - detail below
708-444-0XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	TINLEYPARK	TNPKILTPDS0	N/A	Prefix Type: RBOC Switch Name: TINLEY PARK Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: JOLTILJO20T 🔧 Explore Switch(CLLI: TNPKILTPDS0))
708-444-1XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	TINLEYPARK	TNPKILTPDS0	N/A	Prefix Type: RBOC Switch Name: TINLEY PARK Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: JOLTILJO20T 🔧 Explore Switch(CLLI: TNPKILTPDS0))
708-444-2XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	TINLEYPARK	TNPKILTPDS0	N/A	Prefix Type: RBOC Switch Name: TINLEY PARK Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: JOLTILJO20T 🔧 Explore Switch(CLLI: TNPKILTPDS0))
708-444-3XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	TINLEYPARK	TNPKILTPDS0	N/A	Prefix Type: RBOC Switch Name: TINLEY PARK Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: JOLTILJO20T 🔧 Explore Switch(CLLI: TNPKILTPDS0))
708-444-4XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	TINLEYPARK	TNPKILTPDS0	N/A	Prefix Type: RBOC Switch Name: TINLEY PARK Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: JOLTILJO20T 🔧 Explore Switch(CLLI: TNPKILTPDS0))
708-444-5XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	TINLEYPARK	TNPKILTPDS0	N/A	Prefix Type: RBOC Switch Name: TINLEY PARK Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: JOLTILJO20T 🔧 Explore Switch(CLLI: TNPKILTPDS0))
708-444-6XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	TINLEYPARK	TNPKILTPDS0	N/A	Prefix Type: RBOC Switch Name: TINLEY PARK Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: JOLTILJO20T 🔧 Explore Switch(CLLI: TNPKILTPDS0))
708-444-7XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	TINLEYPARK	TNPKILTPDS0	N/A	Prefix Type: RBOC Switch Name: TINLEY PARK Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: JOLTILJO20T 🔧 Explore Switch(CLLI: TNPKILTPDS0))
708-444-8XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	TINLEYPARK	TNPKILTPDS0	N/A	Prefix Type: RBOC Switch Name: TINLEY PARK Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: JOLTILJO20T 🔧 Explore Switch(CLLI: TNPKILTPDS0))
708-445	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	OAK PARK	OKPKILOPRP0	00/00/0000	Prefix Type: RBOC Switch Name: OAK PARK Switch Type: N/A LATA: Chicago IL METRO (358) Tandem: N/A 🔧 Explore Switch(CLLI: OKPKILOPRP0))
708-447	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	RIVERSIDE	CICRILCIDS0	00/00/0000	Prefix Type: RBOC Switch Name: CICERO DS0 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: LBRDILLM20T 🔧 Explore Switch(CLLI: CICRILCIDS0))
708-448	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	PALOS PARK	PLPKILPPDS0	00/00/0000	Prefix Type: RBOC Switch Name: PALOS PARK Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: JOLTILJO20T 🔧 Explore Switch(CLLI: PLPKILPPDS0))
708-449	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	BELLWOOD	HLSDILHDDS0	00/00/0000	Prefix Type: RBOC Switch Name: HILLSIDE Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: JOLTILJO20T 🔧 Explore Switch(CLLI: HLSDILHDDS0))
708-450	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	MAYWOOD	BLWDILBWDS0	00/00/0000	Prefix Type: RBOC Switch Name: BELLWOOD DS0 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILST55T 🔧 Explore Switch(CLLI: BLWDILBWDS0))
708-452	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	RIVERGROVE	RVGVILRGDS0	00/00/0000	Prefix Type: RBOC Switch Name: RIVER GROVE Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: LBRDILLM20T 🔧 Explore Switch(CLLI: RVGVILRGDS0))
708-453	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	RIVERGROVE	RVGVILRGDS0	00/00/0000	Prefix Type: RBOC Switch Name: RIVER GROVE Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: LBRDILLM20T 🔧 Explore Switch(CLLI: RVGVILRGDS0))
708-456	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	RIVERGROVE	RVGVILRGDS0	00/00/0000	Prefix Type: RBOC Switch Name: RIVER GROVE Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: LBRDILLM20T 🔧 Explore Switch(CLLI: RVGVILRGDS0))
708-457	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	RIVERGROVE	CHCGILNEDS0	00/00/0000	Prefix Type: RBOC Switch Name: CHCG NEWCASTLE Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILNE50T 🔧 Explore Switch(CLLI: CHCGILNEDS0))
708-457 is split into 1,000-number blocks - detail below
708-457-0XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	RIVERGROVE	CHCGILNEDS0	N/A	Prefix Type: RBOC Switch Name: CHCG NEWCASTLE Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILNE50T 🔧 Explore Switch(CLLI: CHCGILNEDS0))
708-457-1XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	RIVERGROVE	CHCGILNEDS0	N/A	Prefix Type: RBOC Switch Name: CHCG NEWCASTLE Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILNE50T 🔧 Explore Switch(CLLI: CHCGILNEDS0))
708-457-2XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	RIVERGROVE	CHCGILNEDS0	N/A	Prefix Type: RBOC Switch Name: CHCG NEWCASTLE Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILNE50T 🔧 Explore Switch(CLLI: CHCGILNEDS0))
708-457-3XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	RIVERGROVE	CHCGILNEDS0	N/A	Prefix Type: RBOC Switch Name: CHCG NEWCASTLE Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILNE50T 🔧 Explore Switch(CLLI: CHCGILNEDS0))
708-457-5XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	RIVERGROVE	CHCGILNEDS0	N/A	Prefix Type: RBOC Switch Name: CHCG NEWCASTLE Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILNE50T 🔧 Explore Switch(CLLI: CHCGILNEDS0))
708-457-8XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	RIVERGROVE	CHCGILNEDS0	N/A	Prefix Type: RBOC Switch Name: CHCG NEWCASTLE Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILNE50T 🔧 Explore Switch(CLLI: CHCGILNEDS0))
708-458	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	SUMMIT	SMMTILSMDS0	00/00/0000	Prefix Type: RBOC Switch Name: SUMMIT Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: JOLTILJO20T 🔧 Explore Switch(CLLI: SMMTILSMDS0))
708-460	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	ORLAND	ORPKILORDS0	00/00/0000	Prefix Type: RBOC Switch Name: ORLAND PARK Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: JOLTILJO20T 🔧 Explore Switch(CLLI: ORPKILORDS0))
708-467	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	WILLOW SPG	SMMTILSMDS0	00/00/0000	Prefix Type: RBOC Switch Name: SUMMIT Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: JOLTILJO20T 🔧 Explore Switch(CLLI: SMMTILSMDS0))
708-467 is split into 1,000-number blocks - detail below
708-467-0XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	WILLOW SPG	SMMTILSMDS0	N/A	Prefix Type: RBOC Switch Name: SUMMIT Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: JOLTILJO20T 🔧 Explore Switch(CLLI: SMMTILSMDS0))
708-467-2XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	WILLOW SPG	SMMTILSMDS0	N/A	Prefix Type: RBOC Switch Name: SUMMIT Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: JOLTILJO20T 🔧 Explore Switch(CLLI: SMMTILSMDS0))
708-467-3XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	WILLOW SPG	SMMTILSMDS0	N/A	Prefix Type: RBOC Switch Name: SUMMIT Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: JOLTILJO20T 🔧 Explore Switch(CLLI: SMMTILSMDS0))
708-467-4XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	WILLOW SPG	SMMTILSMDS0	N/A	Prefix Type: RBOC Switch Name: SUMMIT Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: JOLTILJO20T 🔧 Explore Switch(CLLI: SMMTILSMDS0))
708-467-5XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	WILLOW SPG	SMMTILSMDS0	N/A	Prefix Type: RBOC Switch Name: SUMMIT Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: JOLTILJO20T 🔧 Explore Switch(CLLI: SMMTILSMDS0))
708-474	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	LANSING	CMCYILCCDS0	00/00/0000	Prefix Type: RBOC Switch Name: CALUMET CITY DS0 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: JOLTILJO20T 🔧 Explore Switch(CLLI: CMCYILCCDS0))
708-478	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	MOKENA	MOKNILMERS1	00/00/0000	Prefix Type: RBOC Switch Name: MOKENA RS1 Switch Type: N/A LATA: Chicago IL METRO (358) Tandem: JOLTILJO20T 🔧 Explore Switch(CLLI: MOKNILMERS1))
708-478 is split into 1,000-number blocks - detail below
708-478-0XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	MOKENA	MOKNILMERS1	N/A	Prefix Type: RBOC Switch Name: MOKENA RS1 Switch Type: N/A LATA: Chicago IL METRO (358) Tandem: JOLTILJO20T 🔧 Explore Switch(CLLI: MOKNILMERS1))
708-478-1XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	MOKENA	MOKNILMERS1	N/A	Prefix Type: RBOC Switch Name: MOKENA RS1 Switch Type: N/A LATA: Chicago IL METRO (358) Tandem: JOLTILJO20T 🔧 Explore Switch(CLLI: MOKNILMERS1))
708-478-2XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	MOKENA	MOKNILMERS1	N/A	Prefix Type: RBOC Switch Name: MOKENA RS1 Switch Type: N/A LATA: Chicago IL METRO (358) Tandem: JOLTILJO20T 🔧 Explore Switch(CLLI: MOKNILMERS1))
708-478-3XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	MOKENA	MOKNILMERS1	N/A	Prefix Type: RBOC Switch Name: MOKENA RS1 Switch Type: N/A LATA: Chicago IL METRO (358) Tandem: JOLTILJO20T 🔧 Explore Switch(CLLI: MOKNILMERS1))
708-478-4XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	MOKENA	MOKNILMERS1	N/A	Prefix Type: RBOC Switch Name: MOKENA RS1 Switch Type: N/A LATA: Chicago IL METRO (358) Tandem: JOLTILJO20T 🔧 Explore Switch(CLLI: MOKNILMERS1))
708-478-5XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	MOKENA	MOKNILMERS1	N/A	Prefix Type: RBOC Switch Name: MOKENA RS1 Switch Type: N/A LATA: Chicago IL METRO (358) Tandem: JOLTILJO20T 🔧 Explore Switch(CLLI: MOKNILMERS1))
708-478-6XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	MOKENA	MOKNILMERS1	N/A	Prefix Type: RBOC Switch Name: MOKENA RS1 Switch Type: N/A LATA: Chicago IL METRO (358) Tandem: JOLTILJO20T 🔧 Explore Switch(CLLI: MOKNILMERS1))
708-478-7XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	MOKENA	MOKNILMERS1	N/A	Prefix Type: RBOC Switch Name: MOKENA RS1 Switch Type: N/A LATA: Chicago IL METRO (358) Tandem: JOLTILJO20T 🔧 Explore Switch(CLLI: MOKNILMERS1))
708-478-8XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	MOKENA	MOKNILMERS1	N/A	Prefix Type: RBOC Switch Name: MOKENA RS1 Switch Type: N/A LATA: Chicago IL METRO (358) Tandem: JOLTILJO20T 🔧 Explore Switch(CLLI: MOKNILMERS1))
708-479	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	MOKENA	MOKNILMERS1	00/00/0000	Prefix Type: RBOC Switch Name: MOKENA RS1 Switch Type: N/A LATA: Chicago IL METRO (358) Tandem: JOLTILJO20T 🔧 Explore Switch(CLLI: MOKNILMERS1))
708-481	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICAGOHTS	PKFSILPFDS0	00/00/0000	Prefix Type: RBOC Switch Name: PARK FOREST Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: JOLTILJO20T 🔧 Explore Switch(CLLI: PKFSILPFDS0))
708-482	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	LA GRANGE	LGRCILLGDS0	00/00/0000	Prefix Type: RBOC Switch Name: LA GRANGE DS0 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: JOLTILJO20T 🔧 Explore Switch(CLLI: LGRCILLGDS0))
708-484	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	BERWYN	CICRILCIDS0	00/00/0000	Prefix Type: RBOC Switch Name: CICERO DS0 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: LBRDILLM20T 🔧 Explore Switch(CLLI: CICRILCIDS0))
708-485	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	BROOKFIELD	LGRCILLGDS0	00/00/0000	Prefix Type: RBOC Switch Name: LA GRANGE DS0 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: JOLTILJO20T 🔧 Explore Switch(CLLI: LGRCILLGDS0))
708-488	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	FOREST	OKPKILOPRP0	00/00/0000	Prefix Type: RBOC Switch Name: OAK PARK Switch Type: N/A LATA: Chicago IL METRO (358) Tandem: N/A 🔧 Explore Switch(CLLI: OKPKILOPRP0))
708-488 is split into 1,000-number blocks - detail below
708-488-0XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	FOREST	OKPKILOPRP0	N/A	Prefix Type: RBOC Switch Name: OAK PARK Switch Type: N/A LATA: Chicago IL METRO (358) Tandem: N/A 🔧 Explore Switch(CLLI: OKPKILOPRP0))
708-488-1XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	FOREST	OKPKILOPRP0	N/A	Prefix Type: RBOC Switch Name: OAK PARK Switch Type: N/A LATA: Chicago IL METRO (358) Tandem: N/A 🔧 Explore Switch(CLLI: OKPKILOPRP0))
708-488-2XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	FOREST	OKPKILOPRP0	N/A	Prefix Type: RBOC Switch Name: OAK PARK Switch Type: N/A LATA: Chicago IL METRO (358) Tandem: N/A 🔧 Explore Switch(CLLI: OKPKILOPRP0))
708-488-3XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	FOREST	OKPKILOPRP0	N/A	Prefix Type: RBOC Switch Name: OAK PARK Switch Type: N/A LATA: Chicago IL METRO (358) Tandem: N/A 🔧 Explore Switch(CLLI: OKPKILOPRP0))
708-488-4XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	FOREST	OKPKILOPRP0	N/A	Prefix Type: RBOC Switch Name: OAK PARK Switch Type: N/A LATA: Chicago IL METRO (358) Tandem: N/A 🔧 Explore Switch(CLLI: OKPKILOPRP0))
708-488-5XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	FOREST	OKPKILOPRP0	N/A	Prefix Type: RBOC Switch Name: OAK PARK Switch Type: N/A LATA: Chicago IL METRO (358) Tandem: N/A 🔧 Explore Switch(CLLI: OKPKILOPRP0))
708-488-8XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	FOREST	OKPKILOPRP0	N/A	Prefix Type: RBOC Switch Name: OAK PARK Switch Type: N/A LATA: Chicago IL METRO (358) Tandem: N/A 🔧 Explore Switch(CLLI: OKPKILOPRP0))
708-488-9XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	FOREST	OKPKILOPRP0	N/A	Prefix Type: RBOC Switch Name: OAK PARK Switch Type: N/A LATA: Chicago IL METRO (358) Tandem: N/A 🔧 Explore Switch(CLLI: OKPKILOPRP0))
708-489	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	BLUEISLAND	BLISILBIDS0	00/00/0000	Prefix Type: RBOC Switch Name: BLUE ISLAND Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: JOLTILJO20T 🔧 Explore Switch(CLLI: BLISILBIDS0))
708-492	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	MAYWOOD	HLSDILHDDS0	00/00/0000	Prefix Type: RBOC Switch Name: HILLSIDE Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: JOLTILJO20T 🔧 Explore Switch(CLLI: HLSDILHDDS0))
708-492 is split into 1,000-number blocks - detail below
708-492-0XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	MAYWOOD	HLSDILHDDS0	N/A	Prefix Type: RBOC Switch Name: HILLSIDE Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: JOLTILJO20T 🔧 Explore Switch(CLLI: HLSDILHDDS0))
708-492-1XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	MAYWOOD	HLSDILHDDS0	N/A	Prefix Type: RBOC Switch Name: HILLSIDE Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: JOLTILJO20T 🔧 Explore Switch(CLLI: HLSDILHDDS0))
708-492-3XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	MAYWOOD	HLSDILHDDS0	N/A	Prefix Type: RBOC Switch Name: HILLSIDE Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: JOLTILJO20T 🔧 Explore Switch(CLLI: HLSDILHDDS0))
708-492-4XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	MAYWOOD	HLSDILHDDS0	N/A	Prefix Type: RBOC Switch Name: HILLSIDE Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: JOLTILJO20T 🔧 Explore Switch(CLLI: HLSDILHDDS0))
708-492-6XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	MAYWOOD	HLSDILHDDS0	N/A	Prefix Type: RBOC Switch Name: HILLSIDE Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: JOLTILJO20T 🔧 Explore Switch(CLLI: HLSDILHDDS0))
708-492-7XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	MAYWOOD	HLSDILHDDS0	N/A	Prefix Type: RBOC Switch Name: HILLSIDE Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: JOLTILJO20T 🔧 Explore Switch(CLLI: HLSDILHDDS0))
708-493	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	BELLWOOD	BLWDILBWDS0	00/00/0000	Prefix Type: RBOC Switch Name: BELLWOOD DS0 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILST55T 🔧 Explore Switch(CLLI: BLWDILBWDS0))
708-493 is split into 1,000-number blocks - detail below
708-493-0XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	BELLWOOD	BLWDILBWDS0	N/A	Prefix Type: RBOC Switch Name: BELLWOOD DS0 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILST55T 🔧 Explore Switch(CLLI: BLWDILBWDS0))
708-493-1XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	BELLWOOD	BLWDILBWDS0	N/A	Prefix Type: RBOC Switch Name: BELLWOOD DS0 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILST55T 🔧 Explore Switch(CLLI: BLWDILBWDS0))
708-493-2XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	BELLWOOD	BLWDILBWDS0	N/A	Prefix Type: RBOC Switch Name: BELLWOOD DS0 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILST55T 🔧 Explore Switch(CLLI: BLWDILBWDS0))
708-493-9XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	BELLWOOD	BLWDILBWDS0	N/A	Prefix Type: RBOC Switch Name: BELLWOOD DS0 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILST55T 🔧 Explore Switch(CLLI: BLWDILBWDS0))
708-496	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	SUMMIT	SMMTILSMDS0	00/00/0000	Prefix Type: RBOC Switch Name: SUMMIT Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: JOLTILJO20T 🔧 Explore Switch(CLLI: SMMTILSMDS0))
708-499	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	OAK LAWN	OKLWILOLDS0	00/00/0000	Prefix Type: RBOC Switch Name: OAK LAWN Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: JOLTILJO20T 🔧 Explore Switch(CLLI: OKLWILOLDS0))
708-503	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICAGOHTS	PKFSILPFDS0	00/00/0000	Prefix Type: RBOC Switch Name: PARK FOREST Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: JOLTILJO20T 🔧 Explore Switch(CLLI: PKFSILPFDS0))
708-520	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	OAK LAWN	OKLWILOLDS0	11/19/2012	Prefix Type: RBOC Switch Name: OAK LAWN Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: JOLTILJO20T 🔧 Explore Switch(CLLI: OKLWILOLDS0))
708-520 is split into 1,000-number blocks - detail below
708-520-0XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	OAK LAWN	OKLWILOLDS0	11/20/2012	Prefix Type: RBOC Switch Name: OAK LAWN Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: JOLTILJO20T 🔧 Explore Switch(CLLI: OKLWILOLDS0))
708-520-1XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	OAK LAWN	OKLWILOLDS0	11/20/2012	Prefix Type: RBOC Switch Name: OAK LAWN Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: JOLTILJO20T 🔧 Explore Switch(CLLI: OKLWILOLDS0))
708-520-2XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	OAK LAWN	OKLWILOLDS0	11/20/2012	Prefix Type: RBOC Switch Name: OAK LAWN Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: JOLTILJO20T 🔧 Explore Switch(CLLI: OKLWILOLDS0))
708-520-3XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	OAK LAWN	OKLWILOLDS0	11/20/2012	Prefix Type: RBOC Switch Name: OAK LAWN Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: JOLTILJO20T 🔧 Explore Switch(CLLI: OKLWILOLDS0))
708-520-4XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	OAK LAWN	OKLWILOLDS0	11/20/2012	Prefix Type: RBOC Switch Name: OAK LAWN Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: JOLTILJO20T 🔧 Explore Switch(CLLI: OKLWILOLDS0))
708-520-5XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	OAK LAWN	OKLWILOLDS0	11/20/2012	Prefix Type: RBOC Switch Name: OAK LAWN Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: JOLTILJO20T 🔧 Explore Switch(CLLI: OKLWILOLDS0))
708-520-6XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	OAK LAWN	OKLWILOLDS0	11/20/2012	Prefix Type: RBOC Switch Name: OAK LAWN Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: JOLTILJO20T 🔧 Explore Switch(CLLI: OKLWILOLDS0))
708-520-7XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	OAK LAWN	OKLWILOLDS0	11/20/2012	Prefix Type: RBOC Switch Name: OAK LAWN Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: JOLTILJO20T 🔧 Explore Switch(CLLI: OKLWILOLDS0))
708-520-8XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	OAK LAWN	OKLWILOLDS0	11/20/2012	Prefix Type: RBOC Switch Name: OAK LAWN Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: JOLTILJO20T 🔧 Explore Switch(CLLI: OKLWILOLDS0))
708-520-9XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	OAK LAWN	OKLWILOLDS0	11/20/2012	Prefix Type: RBOC Switch Name: OAK LAWN Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: JOLTILJO20T 🔧 Explore Switch(CLLI: OKLWILOLDS0))
708-524	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	OAK PARK	OKPKILOPRP0	00/00/0000	Prefix Type: RBOC Switch Name: OAK PARK Switch Type: N/A LATA: Chicago IL METRO (358) Tandem: N/A 🔧 Explore Switch(CLLI: OKPKILOPRP0))
708-531	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	MAYWOOD	HLSDILHDDS0	00/00/0000	Prefix Type: RBOC Switch Name: HILLSIDE Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: JOLTILJO20T 🔧 Explore Switch(CLLI: HLSDILHDDS0))
708-532	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	TINLEYPARK	TNPKILTPDS0	00/00/0000	Prefix Type: RBOC Switch Name: TINLEY PARK Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: JOLTILJO20T 🔧 Explore Switch(CLLI: TNPKILTPDS0))
708-534	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	MONEE	MONEILGKRS0	00/00/0000	Prefix Type: RBOC Switch Name: GOVERNORS PK RS0 Switch Type: N/A LATA: Chicago IL METRO (358) Tandem: JOLTILJO20T 🔧 Explore Switch(CLLI: MONEILGKRS0))
708-535	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	BLUEISLAND	TNPKILTPDS0	00/00/0000	Prefix Type: RBOC Switch Name: TINLEY PARK Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: JOLTILJO20T 🔧 Explore Switch(CLLI: TNPKILTPDS0))
708-538 is split into 1,000-number blocks - detail below
708-538-4XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	MAYWOOD	BLWDILBWDS0	09/25/2013	Prefix Type: RBOC Switch Name: BELLWOOD DS0 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILST55T 🔧 Explore Switch(CLLI: BLWDILBWDS0))
708-538-5XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	MAYWOOD	BLWDILBWDS0	09/25/2013	Prefix Type: RBOC Switch Name: BELLWOOD DS0 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILST55T 🔧 Explore Switch(CLLI: BLWDILBWDS0))
708-538-6XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	MAYWOOD	BLWDILBWDS0	09/25/2013	Prefix Type: RBOC Switch Name: BELLWOOD DS0 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILST55T 🔧 Explore Switch(CLLI: BLWDILBWDS0))
708-538-7XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	MAYWOOD	BLWDILBWDS0	09/25/2013	Prefix Type: RBOC Switch Name: BELLWOOD DS0 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILST55T 🔧 Explore Switch(CLLI: BLWDILBWDS0))
708-544	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	BELLWOOD	BLWDILBWDS0	00/00/0000	Prefix Type: RBOC Switch Name: BELLWOOD DS0 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILST55T 🔧 Explore Switch(CLLI: BLWDILBWDS0))
708-547	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	BELLWOOD	BLWDILBWDS0	00/00/0000	Prefix Type: RBOC Switch Name: BELLWOOD DS0 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILST55T 🔧 Explore Switch(CLLI: BLWDILBWDS0))
708-560	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	OAK FOR SO	TNPKILTPDS0	00/00/0000	Prefix Type: RBOC Switch Name: TINLEY PARK Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: JOLTILJO20T 🔧 Explore Switch(CLLI: TNPKILTPDS0))
708-560 is split into 1,000-number blocks - detail below
708-560-0XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	OAK FOR SO	TNPKILTPDS0	N/A	Prefix Type: RBOC Switch Name: TINLEY PARK Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: JOLTILJO20T 🔧 Explore Switch(CLLI: TNPKILTPDS0))
708-560-2XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	OAK FOR SO	TNPKILTPDS0	N/A	Prefix Type: RBOC Switch Name: TINLEY PARK Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: JOLTILJO20T 🔧 Explore Switch(CLLI: TNPKILTPDS0))
708-560-7XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	OAK FOR SO	TNPKILTPDS0	N/A	Prefix Type: RBOC Switch Name: TINLEY PARK Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: JOLTILJO20T 🔧 Explore Switch(CLLI: TNPKILTPDS0))
708-560-8XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	OAK FOR SO	TNPKILTPDS0	N/A	Prefix Type: RBOC Switch Name: TINLEY PARK Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: JOLTILJO20T 🔧 Explore Switch(CLLI: TNPKILTPDS0))
708-560-9XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	OAK FOR SO	TNPKILTPDS0	N/A	Prefix Type: RBOC Switch Name: TINLEY PARK Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: JOLTILJO20T 🔧 Explore Switch(CLLI: TNPKILTPDS0))
708-562	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	MAYWOOD	HLSDILHDDS0	00/00/0000	Prefix Type: RBOC Switch Name: HILLSIDE Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: JOLTILJO20T 🔧 Explore Switch(CLLI: HLSDILHDDS0))
708-563	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	SUMMIT	SMMTILSMDS0	00/00/0000	Prefix Type: RBOC Switch Name: SUMMIT Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: JOLTILJO20T 🔧 Explore Switch(CLLI: SMMTILSMDS0))
708-579	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	LA GRANGE	LGRCILLGDS0	00/00/0000	Prefix Type: RBOC Switch Name: LA GRANGE DS0 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: JOLTILJO20T 🔧 Explore Switch(CLLI: LGRCILLGDS0))
708-583	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	RIVERGROVE	RVGVILRGDS0	00/00/0000	Prefix Type: RBOC Switch Name: RIVER GROVE Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: LBRDILLM20T 🔧 Explore Switch(CLLI: RVGVILRGDS0))
708-588	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	LA GRANGE	LGRCILLGDS0	00/00/0000	Prefix Type: RBOC Switch Name: LA GRANGE DS0 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: JOLTILJO20T 🔧 Explore Switch(CLLI: LGRCILLGDS0))
708-591	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILWB55T	00/00/0000	Prefix Type: RBOC Switch Name: CHCZ 1 Switch Type: N/A LATA: Chicago IL METRO (358) Tandem: N/A 🔧 Explore Switch(CLLI: CHCGILWB55T))
708-594	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	SUMMIT	SMMTILSMDS0	00/00/0000	Prefix Type: RBOC Switch Name: SUMMIT Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: JOLTILJO20T 🔧 Explore Switch(CLLI: SMMTILSMDS0))
708-596	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	HARVEY	HRVYILHADS0	00/00/0000	Prefix Type: RBOC Switch Name: HARVEY Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: JOLTILJO20T 🔧 Explore Switch(CLLI: HRVYILHADS0))
708-597	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	BLUEISLAND	BLISILBIDS0	00/00/0000	Prefix Type: RBOC Switch Name: BLUE ISLAND Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: JOLTILJO20T 🔧 Explore Switch(CLLI: BLISILBIDS0))
708-598	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	OAK LAWN	HCHLILHHDS0	00/00/0000	Prefix Type: RBOC Switch Name: HICKORY HILLS Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: JOLTILJO20T 🔧 Explore Switch(CLLI: HCHLILHHDS0))
708-599	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	OAK LAWN	HCHLILHHDS0	00/00/0000	Prefix Type: RBOC Switch Name: HICKORY HILLS Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: JOLTILJO20T 🔧 Explore Switch(CLLI: HCHLILHHDS0))
708-614	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	TINLEYPARK	TNPKILTPDS0	00/00/0000	Prefix Type: RBOC Switch Name: TINLEY PARK Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: JOLTILJO20T 🔧 Explore Switch(CLLI: TNPKILTPDS0))
708-615	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	MAYWOOD	BLWDILBWDS0	00/00/0000	Prefix Type: RBOC Switch Name: BELLWOOD DS0 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILST55T 🔧 Explore Switch(CLLI: BLWDILBWDS0))
708-615 is split into 1,000-number blocks - detail below
708-615-0XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	MAYWOOD	BLWDILBWDS0	N/A	Prefix Type: RBOC Switch Name: BELLWOOD DS0 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILST55T 🔧 Explore Switch(CLLI: BLWDILBWDS0))
708-615-6XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	MAYWOOD	BLWDILBWDS0	N/A	Prefix Type: RBOC Switch Name: BELLWOOD DS0 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILST55T 🔧 Explore Switch(CLLI: BLWDILBWDS0))
708-615-8XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	MAYWOOD	BLWDILBWDS0	N/A	Prefix Type: RBOC Switch Name: BELLWOOD DS0 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILST55T 🔧 Explore Switch(CLLI: BLWDILBWDS0))
708-615-9XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	MAYWOOD	BLWDILBWDS0	N/A	Prefix Type: RBOC Switch Name: BELLWOOD DS0 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILST55T 🔧 Explore Switch(CLLI: BLWDILBWDS0))
708-617 is split into 1,000-number blocks - detail below
708-617-3XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	BELLWOOD	BLWDILBWDS0	05/25/2012	Prefix Type: RBOC Switch Name: BELLWOOD DS0 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILST55T 🔧 Explore Switch(CLLI: BLWDILBWDS0))
708-617-4XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	BELLWOOD	BLWDILBWDS0	05/25/2012	Prefix Type: RBOC Switch Name: BELLWOOD DS0 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILST55T 🔧 Explore Switch(CLLI: BLWDILBWDS0))
708-617-5XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	BELLWOOD	BLWDILBWDS0	05/25/2012	Prefix Type: RBOC Switch Name: BELLWOOD DS0 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILST55T 🔧 Explore Switch(CLLI: BLWDILBWDS0))
708-617-6XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	BELLWOOD	BLWDILBWDS0	05/25/2012	Prefix Type: RBOC Switch Name: BELLWOOD DS0 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILST55T 🔧 Explore Switch(CLLI: BLWDILBWDS0))
708-617-7XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	BELLWOOD	BLWDILBWDS0	05/25/2012	Prefix Type: RBOC Switch Name: BELLWOOD DS0 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILST55T 🔧 Explore Switch(CLLI: BLWDILBWDS0))
708-633	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	TINLEYPARK	TNPKILTPDS0	00/00/0000	Prefix Type: RBOC Switch Name: TINLEY PARK Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: JOLTILJO20T 🔧 Explore Switch(CLLI: TNPKILTPDS0))
708-636	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	OAK LAWN	OKLWILOLDS0	00/00/0000	Prefix Type: RBOC Switch Name: OAK LAWN Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: JOLTILJO20T 🔧 Explore Switch(CLLI: OKLWILOLDS0))
708-639	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	LA GRANGE	LGRCILLGDS0	00/00/0000	Prefix Type: RBOC Switch Name: LA GRANGE DS0 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: JOLTILJO20T 🔧 Explore Switch(CLLI: LGRCILLGDS0))
708-639 is split into 1,000-number blocks - detail below
708-639-9XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	LA GRANGE	LGRCILLGDS0	N/A	Prefix Type: RBOC Switch Name: LA GRANGE DS0 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: JOLTILJO20T 🔧 Explore Switch(CLLI: LGRCILLGDS0))
708-645	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	ORLAND	ORPKILOWDS0	00/00/0000	Prefix Type: RBOC Switch Name: ORLAND PARK WEST DS0 Switch Type: EWSD LATA: Chicago IL METRO (358) Tandem: JOLTILJO20T 🔧 Explore Switch(CLLI: ORPKILOWDS0))
708-645 is split into 1,000-number blocks - detail below
708-645-0XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	ORLAND	ORPKILOWDS0	N/A	Prefix Type: RBOC Switch Name: ORLAND PARK WEST DS0 Switch Type: EWSD LATA: Chicago IL METRO (358) Tandem: JOLTILJO20T 🔧 Explore Switch(CLLI: ORPKILOWDS0))
708-645-1XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	ORLAND	ORPKILOWDS0	N/A	Prefix Type: RBOC Switch Name: ORLAND PARK WEST DS0 Switch Type: EWSD LATA: Chicago IL METRO (358) Tandem: JOLTILJO20T 🔧 Explore Switch(CLLI: ORPKILOWDS0))
708-645-2XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	ORLAND	ORPKILOWDS0	N/A	Prefix Type: RBOC Switch Name: ORLAND PARK WEST DS0 Switch Type: EWSD LATA: Chicago IL METRO (358) Tandem: JOLTILJO20T 🔧 Explore Switch(CLLI: ORPKILOWDS0))
708-645-3XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	ORLAND	ORPKILOWDS0	N/A	Prefix Type: RBOC Switch Name: ORLAND PARK WEST DS0 Switch Type: EWSD LATA: Chicago IL METRO (358) Tandem: JOLTILJO20T 🔧 Explore Switch(CLLI: ORPKILOWDS0))
708-645-7XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	ORLAND	ORPKILOWDS0	11/20/2000	Prefix Type: RBOC Switch Name: ORLAND PARK WEST DS0 Switch Type: EWSD LATA: Chicago IL METRO (358) Tandem: JOLTILJO20T 🔧 Explore Switch(CLLI: ORPKILOWDS0))
708-647	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	HOMEWOOD	HMWDILHODS0	00/00/0000	Prefix Type: RBOC Switch Name: HOMEWOOD Switch Type: EWSD LATA: Chicago IL METRO (358) Tandem: JOLTILJO20T 🔧 Explore Switch(CLLI: HMWDILHODS0))
708-649	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	BELLWOOD	BLWDILBWDS0	00/00/0000	Prefix Type: RBOC Switch Name: BELLWOOD DS0 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILST55T 🔧 Explore Switch(CLLI: BLWDILBWDS0))
708-649 is split into 1,000-number blocks - detail below
708-649-2XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	BELLWOOD	BLWDILBWDS0	N/A	Prefix Type: RBOC Switch Name: BELLWOOD DS0 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILST55T 🔧 Explore Switch(CLLI: BLWDILBWDS0))
708-649-3XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	BELLWOOD	BLWDILBWDS0	N/A	Prefix Type: RBOC Switch Name: BELLWOOD DS0 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILST55T 🔧 Explore Switch(CLLI: BLWDILBWDS0))
708-649-4XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	BELLWOOD	BLWDILBWDS0	N/A	Prefix Type: RBOC Switch Name: BELLWOOD DS0 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILST55T 🔧 Explore Switch(CLLI: BLWDILBWDS0))
708-649-5XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	BELLWOOD	BLWDILBWDS0	N/A	Prefix Type: RBOC Switch Name: BELLWOOD DS0 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILST55T 🔧 Explore Switch(CLLI: BLWDILBWDS0))
708-649-6XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	BELLWOOD	BLWDILBWDS0	N/A	Prefix Type: RBOC Switch Name: BELLWOOD DS0 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILST55T 🔧 Explore Switch(CLLI: BLWDILBWDS0))
708-649-7XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	BELLWOOD	BLWDILBWDS0	N/A	Prefix Type: RBOC Switch Name: BELLWOOD DS0 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILST55T 🔧 Explore Switch(CLLI: BLWDILBWDS0))
708-649-8XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	BELLWOOD	BLWDILBWDS0	N/A	Prefix Type: RBOC Switch Name: BELLWOOD DS0 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILST55T 🔧 Explore Switch(CLLI: BLWDILBWDS0))
708-649-9XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	BELLWOOD	BLWDILBWDS0	N/A	Prefix Type: RBOC Switch Name: BELLWOOD DS0 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILST55T 🔧 Explore Switch(CLLI: BLWDILBWDS0))
708-652	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CICERO	CICRILCIDS0	00/00/0000	Prefix Type: RBOC Switch Name: CICERO DS0 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: LBRDILLM20T 🔧 Explore Switch(CLLI: CICRILCIDS0))
708-656	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CICERO	CICRILCIDS0	00/00/0000	Prefix Type: RBOC Switch Name: CICERO DS0 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: LBRDILLM20T 🔧 Explore Switch(CLLI: CICRILCIDS0))
708-660	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	OAK PARK	OKPKILOPRP0	00/00/0000	Prefix Type: RBOC Switch Name: OAK PARK Switch Type: N/A LATA: Chicago IL METRO (358) Tandem: N/A 🔧 Explore Switch(CLLI: OKPKILOPRP0))
708-660 is split into 1,000-number blocks - detail below
708-660-0XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	OAK PARK	OKPKILOPRP0	N/A	Prefix Type: RBOC Switch Name: OAK PARK Switch Type: N/A LATA: Chicago IL METRO (358) Tandem: N/A 🔧 Explore Switch(CLLI: OKPKILOPRP0))
708-660-1XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	OAK PARK	OKPKILOPRP0	N/A	Prefix Type: RBOC Switch Name: OAK PARK Switch Type: N/A LATA: Chicago IL METRO (358) Tandem: N/A 🔧 Explore Switch(CLLI: OKPKILOPRP0))
708-660-2XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	OAK PARK	OKPKILOPRP0	N/A	Prefix Type: RBOC Switch Name: OAK PARK Switch Type: N/A LATA: Chicago IL METRO (358) Tandem: N/A 🔧 Explore Switch(CLLI: OKPKILOPRP0))
708-660-3XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	OAK PARK	OKPKILOPRP0	N/A	Prefix Type: RBOC Switch Name: OAK PARK Switch Type: N/A LATA: Chicago IL METRO (358) Tandem: N/A 🔧 Explore Switch(CLLI: OKPKILOPRP0))
708-660-4XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	OAK PARK	OKPKILOPRP0	N/A	Prefix Type: RBOC Switch Name: OAK PARK Switch Type: N/A LATA: Chicago IL METRO (358) Tandem: N/A 🔧 Explore Switch(CLLI: OKPKILOPRP0))
708-660-5XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	OAK PARK	OKPKILOPRP0	N/A	Prefix Type: RBOC Switch Name: OAK PARK Switch Type: N/A LATA: Chicago IL METRO (358) Tandem: N/A 🔧 Explore Switch(CLLI: OKPKILOPRP0))
708-660-6XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	OAK PARK	OKPKILOPRP0	N/A	Prefix Type: RBOC Switch Name: OAK PARK Switch Type: N/A LATA: Chicago IL METRO (358) Tandem: N/A 🔧 Explore Switch(CLLI: OKPKILOPRP0))
708-660-7XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	OAK PARK	OKPKILOPRP0	N/A	Prefix Type: RBOC Switch Name: OAK PARK Switch Type: N/A LATA: Chicago IL METRO (358) Tandem: N/A 🔧 Explore Switch(CLLI: OKPKILOPRP0))
708-660-9XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	OAK PARK	OKPKILOPRP0	N/A	Prefix Type: RBOC Switch Name: OAK PARK Switch Type: N/A LATA: Chicago IL METRO (358) Tandem: N/A 🔧 Explore Switch(CLLI: OKPKILOPRP0))
708-667	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN03	CHCGILNEDS0	00/00/0000	Prefix Type: RBOC Switch Name: CHCG NEWCASTLE Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILNE50T 🔧 Explore Switch(CLLI: CHCGILNEDS0))
708-667 is split into 1,000-number blocks - detail below
708-667-3XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN03	CHCGILNEDS0	N/A	Prefix Type: RBOC Switch Name: CHCG NEWCASTLE Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILNE50T 🔧 Explore Switch(CLLI: CHCGILNEDS0))
708-671	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	PALOS PARK	PLPKILPPDS0	00/00/0000	Prefix Type: RBOC Switch Name: PALOS PARK Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: JOLTILJO20T 🔧 Explore Switch(CLLI: PLPKILPPDS0))
708-671 is split into 1,000-number blocks - detail below
708-671-0XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	PALOS PARK	PLPKILPPDS0	N/A	Prefix Type: RBOC Switch Name: PALOS PARK Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: JOLTILJO20T 🔧 Explore Switch(CLLI: PLPKILPPDS0))
708-671-1XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	PALOS PARK	PLPKILPPDS0	N/A	Prefix Type: RBOC Switch Name: PALOS PARK Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: JOLTILJO20T 🔧 Explore Switch(CLLI: PLPKILPPDS0))
708-671-2XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	PALOS PARK	PLPKILPPDS0	N/A	Prefix Type: RBOC Switch Name: PALOS PARK Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: JOLTILJO20T 🔧 Explore Switch(CLLI: PLPKILPPDS0))
708-671-3XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	PALOS PARK	PLPKILPPDS0	N/A	Prefix Type: RBOC Switch Name: PALOS PARK Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: JOLTILJO20T 🔧 Explore Switch(CLLI: PLPKILPPDS0))
708-671-5XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	PALOS PARK	PLPKILPPDS0	N/A	Prefix Type: RBOC Switch Name: PALOS PARK Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: JOLTILJO20T 🔧 Explore Switch(CLLI: PLPKILPPDS0))
708-671-9XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	PALOS PARK	PLPKILPPDS0	N/A	Prefix Type: RBOC Switch Name: PALOS PARK Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: JOLTILJO20T 🔧 Explore Switch(CLLI: PLPKILPPDS0))
708-672	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CRETE	CRETILCMDS0	00/00/0000	Prefix Type: RBOC Switch Name: CRETE Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: JOLTILJO20T 🔧 Explore Switch(CLLI: CRETILCMDS0))
708-679	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICAGOHTS	PKFSILPFDS0	00/00/0000	Prefix Type: RBOC Switch Name: PARK FOREST Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: JOLTILJO20T 🔧 Explore Switch(CLLI: PKFSILPFDS0))
708-679 is split into 1,000-number blocks - detail below
708-679-0XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICAGOHTS	PKFSILPFDS0	N/A	Prefix Type: RBOC Switch Name: PARK FOREST Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: JOLTILJO20T 🔧 Explore Switch(CLLI: PKFSILPFDS0))
708-679-1XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICAGOHTS	PKFSILPFDS0	N/A	Prefix Type: RBOC Switch Name: PARK FOREST Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: JOLTILJO20T 🔧 Explore Switch(CLLI: PKFSILPFDS0))
708-679-2XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICAGOHTS	PKFSILPFDS0	N/A	Prefix Type: RBOC Switch Name: PARK FOREST Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: JOLTILJO20T 🔧 Explore Switch(CLLI: PKFSILPFDS0))
708-679-3XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICAGOHTS	PKFSILPFDS0	N/A	Prefix Type: RBOC Switch Name: PARK FOREST Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: JOLTILJO20T 🔧 Explore Switch(CLLI: PKFSILPFDS0))
708-679-5XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICAGOHTS	PKFSILPFDS0	N/A	Prefix Type: RBOC Switch Name: PARK FOREST Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: JOLTILJO20T 🔧 Explore Switch(CLLI: PKFSILPFDS0))
708-679-6XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICAGOHTS	PKFSILPFDS0	N/A	Prefix Type: RBOC Switch Name: PARK FOREST Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: JOLTILJO20T 🔧 Explore Switch(CLLI: PKFSILPFDS0))
708-679-7XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICAGOHTS	PKFSILPFDS0	N/A	Prefix Type: RBOC Switch Name: PARK FOREST Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: JOLTILJO20T 🔧 Explore Switch(CLLI: PKFSILPFDS0))
708-679-8XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICAGOHTS	PKFSILPFDS0	N/A	Prefix Type: RBOC Switch Name: PARK FOREST Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: JOLTILJO20T 🔧 Explore Switch(CLLI: PKFSILPFDS0))
708-679-9XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICAGOHTS	PKFSILPFDS0	N/A	Prefix Type: RBOC Switch Name: PARK FOREST Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: JOLTILJO20T 🔧 Explore Switch(CLLI: PKFSILPFDS0))
708-681	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	MAYWOOD	BLWDILBWDS0	00/00/0000	Prefix Type: RBOC Switch Name: BELLWOOD DS0 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILST55T 🔧 Explore Switch(CLLI: BLWDILBWDS0))
708-684	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	OAK LAWN	OKLWILOLDS0	00/00/0000	Prefix Type: RBOC Switch Name: OAK LAWN Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: JOLTILJO20T 🔧 Explore Switch(CLLI: OKLWILOLDS0))
708-687	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	BLUEISLAND	TNPKILTPDS0	00/00/0000	Prefix Type: RBOC Switch Name: TINLEY PARK Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: JOLTILJO20T 🔧 Explore Switch(CLLI: TNPKILTPDS0))
708-688 is split into 1,000-number blocks - detail below
708-688-7XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	BROOKFIELD	LGRCILLGDS0	09/29/2006	Prefix Type: RBOC Switch Name: LA GRANGE DS0 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: JOLTILJO20T 🔧 Explore Switch(CLLI: LGRCILLGDS0))
708-688-8XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	BROOKFIELD	LGRCILLGDS0	09/29/2006	Prefix Type: RBOC Switch Name: LA GRANGE DS0 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: JOLTILJO20T 🔧 Explore Switch(CLLI: LGRCILLGDS0))
708-697 is split into 1,000-number blocks - detail below
708-697-5XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	RIVERGROVE	RVGVILRGDS0	06/16/2000	Prefix Type: RBOC Switch Name: RIVER GROVE Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: LBRDILLM20T 🔧 Explore Switch(CLLI: RVGVILRGDS0))
708-697-6XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	RIVERGROVE	RVGVILRGDS0	06/27/2000	Prefix Type: RBOC Switch Name: RIVER GROVE Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: LBRDILLM20T 🔧 Explore Switch(CLLI: RVGVILRGDS0))
708-709	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICAGOHTS	CHHGILCHDS0	00/00/0000	Prefix Type: RBOC Switch Name: CHGO HTS MAIN Switch Type: EWSD LATA: Chicago IL METRO (358) Tandem: JOLTILJO20T 🔧 Explore Switch(CLLI: CHHGILCHDS0))
708-720	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICAGOHTS	FRFTILFBDS0	00/00/0000	Prefix Type: RBOC Switch Name: FRANKFORT Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: JOLTILJO20T 🔧 Explore Switch(CLLI: FRFTILFBDS0))
708-728	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	SUMMIT	SMMTILSMDS0	00/00/0000	Prefix Type: RBOC Switch Name: SUMMIT Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: JOLTILJO20T 🔧 Explore Switch(CLLI: SMMTILSMDS0))
708-728 is split into 1,000-number blocks - detail below
708-728-0XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	SUMMIT	SMMTILSMDS0	N/A	Prefix Type: RBOC Switch Name: SUMMIT Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: JOLTILJO20T 🔧 Explore Switch(CLLI: SMMTILSMDS0))
708-728-1XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	SUMMIT	SMMTILSMDS0	N/A	Prefix Type: RBOC Switch Name: SUMMIT Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: JOLTILJO20T 🔧 Explore Switch(CLLI: SMMTILSMDS0))
708-728-2XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	SUMMIT	SMMTILSMDS0	N/A	Prefix Type: RBOC Switch Name: SUMMIT Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: JOLTILJO20T 🔧 Explore Switch(CLLI: SMMTILSMDS0))
708-728-3XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	SUMMIT	SMMTILSMDS0	N/A	Prefix Type: RBOC Switch Name: SUMMIT Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: JOLTILJO20T 🔧 Explore Switch(CLLI: SMMTILSMDS0))
708-728-4XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	SUMMIT	SMMTILSMDS0	N/A	Prefix Type: RBOC Switch Name: SUMMIT Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: JOLTILJO20T 🔧 Explore Switch(CLLI: SMMTILSMDS0))
708-728-6XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	SUMMIT	SMMTILSMDS0	N/A	Prefix Type: RBOC Switch Name: SUMMIT Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: JOLTILJO20T 🔧 Explore Switch(CLLI: SMMTILSMDS0))
708-728-7XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	SUMMIT	SMMTILSMDS0	N/A	Prefix Type: RBOC Switch Name: SUMMIT Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: JOLTILJO20T 🔧 Explore Switch(CLLI: SMMTILSMDS0))
708-728-8XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	SUMMIT	SMMTILSMDS0	N/A	Prefix Type: RBOC Switch Name: SUMMIT Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: JOLTILJO20T 🔧 Explore Switch(CLLI: SMMTILSMDS0))
708-728-9XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	SUMMIT	SMMTILSMDS0	N/A	Prefix Type: RBOC Switch Name: SUMMIT Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: JOLTILJO20T 🔧 Explore Switch(CLLI: SMMTILSMDS0))
708-730	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CALUMET CY	CMCYILCCDS0	00/00/0000	Prefix Type: RBOC Switch Name: CALUMET CITY DS0 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: JOLTILJO20T 🔧 Explore Switch(CLLI: CMCYILCCDS0))
708-730 is split into 1,000-number blocks - detail below
708-730-0XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CALUMET CY	CMCYILCCDS0	N/A	Prefix Type: RBOC Switch Name: CALUMET CITY DS0 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: JOLTILJO20T 🔧 Explore Switch(CLLI: CMCYILCCDS0))
708-730-1XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CALUMET CY	CMCYILCCDS0	N/A	Prefix Type: RBOC Switch Name: CALUMET CITY DS0 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: JOLTILJO20T 🔧 Explore Switch(CLLI: CMCYILCCDS0))
708-730-5XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CALUMET CY	CMCYILCCDS0	N/A	Prefix Type: RBOC Switch Name: CALUMET CITY DS0 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: JOLTILJO20T 🔧 Explore Switch(CLLI: CMCYILCCDS0))
708-730-8XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CALUMET CY	CMCYILCCDS0	N/A	Prefix Type: RBOC Switch Name: CALUMET CITY DS0 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: JOLTILJO20T 🔧 Explore Switch(CLLI: CMCYILCCDS0))
708-730-9XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CALUMET CY	CMCYILCCDS0	N/A	Prefix Type: RBOC Switch Name: CALUMET CITY DS0 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: JOLTILJO20T 🔧 Explore Switch(CLLI: CMCYILCCDS0))
708-747	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICAGOHTS	PKFSILPFDS0	00/00/0000	Prefix Type: RBOC Switch Name: PARK FOREST Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: JOLTILJO20T 🔧 Explore Switch(CLLI: PKFSILPFDS0))
708-748	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICAGOHTS	PKFSILPFDS0	00/00/0000	Prefix Type: RBOC Switch Name: PARK FOREST Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: JOLTILJO20T 🔧 Explore Switch(CLLI: PKFSILPFDS0))
708-749	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	BERWYN	CICRILCIDS0	00/00/0000	Prefix Type: RBOC Switch Name: CICERO DS0 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: LBRDILLM20T 🔧 Explore Switch(CLLI: CICRILCIDS0))
708-753	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICAGOHTS	ECHGILEHDS0	00/00/0000	Prefix Type: RBOC Switch Name: CHGO HTS EAST Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: JOLTILJO20T 🔧 Explore Switch(CLLI: ECHGILEHDS0))
708-753 is split into 1,000-number blocks - detail below
708-753-0XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICAGOHTS	ECHGILEHDS0	N/A	Prefix Type: RBOC Switch Name: CHGO HTS EAST Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: JOLTILJO20T 🔧 Explore Switch(CLLI: ECHGILEHDS0))
708-753-1XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICAGOHTS	ECHGILEHDS0	N/A	Prefix Type: RBOC Switch Name: CHGO HTS EAST Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: JOLTILJO20T 🔧 Explore Switch(CLLI: ECHGILEHDS0))
708-753-2XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICAGOHTS	ECHGILEHDS0	N/A	Prefix Type: RBOC Switch Name: CHGO HTS EAST Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: JOLTILJO20T 🔧 Explore Switch(CLLI: ECHGILEHDS0))
708-753-5XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICAGOHTS	ECHGILEHDS0	N/A	Prefix Type: RBOC Switch Name: CHGO HTS EAST Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: JOLTILJO20T 🔧 Explore Switch(CLLI: ECHGILEHDS0))
708-754	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICAGOHTS	CHHGILCHDS0	00/00/0000	Prefix Type: RBOC Switch Name: CHGO HTS MAIN Switch Type: EWSD LATA: Chicago IL METRO (358) Tandem: JOLTILJO20T 🔧 Explore Switch(CLLI: CHHGILCHDS0))
708-755	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICAGOHTS	CHHGILCHDS0	00/00/0000	Prefix Type: RBOC Switch Name: CHGO HTS MAIN Switch Type: EWSD LATA: Chicago IL METRO (358) Tandem: JOLTILJO20T 🔧 Explore Switch(CLLI: CHHGILCHDS0))
708-756	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICAGOHTS	CHHGILCHDS0	00/00/0000	Prefix Type: RBOC Switch Name: CHGO HTS MAIN Switch Type: EWSD LATA: Chicago IL METRO (358) Tandem: JOLTILJO20T 🔧 Explore Switch(CLLI: CHHGILCHDS0))
708-757	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICAGOHTS	ECHGILEHDS0	00/00/0000	Prefix Type: RBOC Switch Name: CHGO HTS EAST Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: JOLTILJO20T 🔧 Explore Switch(CLLI: ECHGILEHDS0))
708-758	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICAGOHTS	ECHGILEHDS0	00/00/0000	Prefix Type: RBOC Switch Name: CHGO HTS EAST Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: JOLTILJO20T 🔧 Explore Switch(CLLI: ECHGILEHDS0))
708-763	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	OAK PARK	OKPKILOPRP0	00/00/0000	Prefix Type: RBOC Switch Name: OAK PARK Switch Type: N/A LATA: Chicago IL METRO (358) Tandem: N/A 🔧 Explore Switch(CLLI: OKPKILOPRP0))
708-771	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	FOREST	OKPKILOPRP0	00/00/0000	Prefix Type: RBOC Switch Name: OAK PARK Switch Type: N/A LATA: Chicago IL METRO (358) Tandem: N/A 🔧 Explore Switch(CLLI: OKPKILOPRP0))
708-780	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CICERO	CICRILCIDS0	00/00/0000	Prefix Type: RBOC Switch Name: CICERO DS0 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: LBRDILLM20T 🔧 Explore Switch(CLLI: CICRILCIDS0))
708-783	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	WESTERNSPG	LGRCILLGDS0	00/00/0000	Prefix Type: RBOC Switch Name: LA GRANGE DS0 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: JOLTILJO20T 🔧 Explore Switch(CLLI: LGRCILLGDS0))
708-784	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	WESTERNSPG	LGRCILLGDS0	00/00/0000	Prefix Type: RBOC Switch Name: LA GRANGE DS0 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: JOLTILJO20T 🔧 Explore Switch(CLLI: LGRCILLGDS0))
708-784 is split into 1,000-number blocks - detail below
708-784-0XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	WESTERNSPG	LGRCILLGDS0	N/A	Prefix Type: RBOC Switch Name: LA GRANGE DS0 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: JOLTILJO20T 🔧 Explore Switch(CLLI: LGRCILLGDS0))
708-784-1XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	WESTERNSPG	LGRCILLGDS0	N/A	Prefix Type: RBOC Switch Name: LA GRANGE DS0 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: JOLTILJO20T 🔧 Explore Switch(CLLI: LGRCILLGDS0))
708-784-2XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	WESTERNSPG	LGRCILLGDS0	N/A	Prefix Type: RBOC Switch Name: LA GRANGE DS0 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: JOLTILJO20T 🔧 Explore Switch(CLLI: LGRCILLGDS0))
708-784-3XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	WESTERNSPG	LGRCILLGDS0	N/A	Prefix Type: RBOC Switch Name: LA GRANGE DS0 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: JOLTILJO20T 🔧 Explore Switch(CLLI: LGRCILLGDS0))
708-784-9XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	WESTERNSPG	LGRCILLGDS0	N/A	Prefix Type: RBOC Switch Name: LA GRANGE DS0 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: JOLTILJO20T 🔧 Explore Switch(CLLI: LGRCILLGDS0))
708-786	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	MAYWOOD	BLWDILBWDS0	00/00/0000	Prefix Type: RBOC Switch Name: BELLWOOD DS0 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILST55T 🔧 Explore Switch(CLLI: BLWDILBWDS0))
708-786 is split into 1,000-number blocks - detail below
708-786-2XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	MAYWOOD	BLWDILBWDS0	N/A	Prefix Type: RBOC Switch Name: BELLWOOD DS0 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILST55T 🔧 Explore Switch(CLLI: BLWDILBWDS0))
708-786-3XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	MAYWOOD	BLWDILBWDS0	N/A	Prefix Type: RBOC Switch Name: BELLWOOD DS0 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILST55T 🔧 Explore Switch(CLLI: BLWDILBWDS0))
708-786-4XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	MAYWOOD	BLWDILBWDS0	N/A	Prefix Type: RBOC Switch Name: BELLWOOD DS0 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILST55T 🔧 Explore Switch(CLLI: BLWDILBWDS0))
708-786-5XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	MAYWOOD	BLWDILBWDS0	N/A	Prefix Type: RBOC Switch Name: BELLWOOD DS0 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILST55T 🔧 Explore Switch(CLLI: BLWDILBWDS0))
708-786-6XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	MAYWOOD	BLWDILBWDS0	N/A	Prefix Type: RBOC Switch Name: BELLWOOD DS0 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILST55T 🔧 Explore Switch(CLLI: BLWDILBWDS0))
708-786-7XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	MAYWOOD	BLWDILBWDS0	N/A	Prefix Type: RBOC Switch Name: BELLWOOD DS0 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILST55T 🔧 Explore Switch(CLLI: BLWDILBWDS0))
708-786-8XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	MAYWOOD	BLWDILBWDS0	N/A	Prefix Type: RBOC Switch Name: BELLWOOD DS0 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILST55T 🔧 Explore Switch(CLLI: BLWDILBWDS0))
708-788	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	BERWYN	CICRILCIDS0	00/00/0000	Prefix Type: RBOC Switch Name: CICERO DS0 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: LBRDILLM20T 🔧 Explore Switch(CLLI: CICRILCIDS0))
708-795	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	BERWYN	CICRILCIDS0	00/00/0000	Prefix Type: RBOC Switch Name: CICERO DS0 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: LBRDILLM20T 🔧 Explore Switch(CLLI: CICRILCIDS0))
708-798	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	HOMEWOOD	HMWDILHODS0	00/00/0000	Prefix Type: RBOC Switch Name: HOMEWOOD Switch Type: EWSD LATA: Chicago IL METRO (358) Tandem: JOLTILJO20T 🔧 Explore Switch(CLLI: HMWDILHODS0))
708-799	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	HOMEWOOD	HMWDILHODS0	00/00/0000	Prefix Type: RBOC Switch Name: HOMEWOOD Switch Type: EWSD LATA: Chicago IL METRO (358) Tandem: JOLTILJO20T 🔧 Explore Switch(CLLI: HMWDILHODS0))
708-802	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	TINLEYPARK	TNPKILTPDS0	00/00/0000	Prefix Type: RBOC Switch Name: TINLEY PARK Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: JOLTILJO20T 🔧 Explore Switch(CLLI: TNPKILTPDS0))
708-802 is split into 1,000-number blocks - detail below
708-802-5XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	TINLEYPARK	TNPKILTPDS0	N/A	Prefix Type: RBOC Switch Name: TINLEY PARK Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: JOLTILJO20T 🔧 Explore Switch(CLLI: TNPKILTPDS0))
708-802-6XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	TINLEYPARK	TNPKILTPDS0	N/A	Prefix Type: RBOC Switch Name: TINLEY PARK Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: JOLTILJO20T 🔧 Explore Switch(CLLI: TNPKILTPDS0))
708-802-7XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	TINLEYPARK	TNPKILTPDS0	N/A	Prefix Type: RBOC Switch Name: TINLEY PARK Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: JOLTILJO20T 🔧 Explore Switch(CLLI: TNPKILTPDS0))
708-802-8XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	TINLEYPARK	TNPKILTPDS0	N/A	Prefix Type: RBOC Switch Name: TINLEY PARK Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: JOLTILJO20T 🔧 Explore Switch(CLLI: TNPKILTPDS0))
708-802-9XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	TINLEYPARK	TNPKILTPDS0	N/A	Prefix Type: RBOC Switch Name: TINLEY PARK Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: JOLTILJO20T 🔧 Explore Switch(CLLI: TNPKILTPDS0))
708-824	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	BLUEISLAND	BLISILBIDS0	00/00/0000	Prefix Type: RBOC Switch Name: BLUE ISLAND Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: JOLTILJO20T 🔧 Explore Switch(CLLI: BLISILBIDS0))
708-824 is split into 1,000-number blocks - detail below
708-824-0XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	BLUEISLAND	BLISILBIDS0	N/A	Prefix Type: RBOC Switch Name: BLUE ISLAND Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: JOLTILJO20T 🔧 Explore Switch(CLLI: BLISILBIDS0))
708-824-1XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	BLUEISLAND	BLISILBIDS0	N/A	Prefix Type: RBOC Switch Name: BLUE ISLAND Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: JOLTILJO20T 🔧 Explore Switch(CLLI: BLISILBIDS0))
708-824-2XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	BLUEISLAND	BLISILBIDS0	N/A	Prefix Type: RBOC Switch Name: BLUE ISLAND Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: JOLTILJO20T 🔧 Explore Switch(CLLI: BLISILBIDS0))
708-824-3XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	BLUEISLAND	BLISILBIDS0	N/A	Prefix Type: RBOC Switch Name: BLUE ISLAND Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: JOLTILJO20T 🔧 Explore Switch(CLLI: BLISILBIDS0))
708-824-4XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	BLUEISLAND	BLISILBIDS0	N/A	Prefix Type: RBOC Switch Name: BLUE ISLAND Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: JOLTILJO20T 🔧 Explore Switch(CLLI: BLISILBIDS0))
708-824-5XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	BLUEISLAND	BLISILBIDS0	N/A	Prefix Type: RBOC Switch Name: BLUE ISLAND Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: JOLTILJO20T 🔧 Explore Switch(CLLI: BLISILBIDS0))
708-824-9XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	BLUEISLAND	BLISILBIDS0	N/A	Prefix Type: RBOC Switch Name: BLUE ISLAND Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: JOLTILJO20T 🔧 Explore Switch(CLLI: BLISILBIDS0))
708-832	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CALUMET CY	CMCYILCCDS0	00/00/0000	Prefix Type: RBOC Switch Name: CALUMET CITY DS0 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: JOLTILJO20T 🔧 Explore Switch(CLLI: CMCYILCCDS0))
708-832 is split into 1,000-number blocks - detail below
708-832-0XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CALUMET CY	CMCYILCCDS0	N/A	Prefix Type: RBOC Switch Name: CALUMET CITY DS0 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: JOLTILJO20T 🔧 Explore Switch(CLLI: CMCYILCCDS0))
708-832-1XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CALUMET CY	CMCYILCCDS0	N/A	Prefix Type: RBOC Switch Name: CALUMET CITY DS0 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: JOLTILJO20T 🔧 Explore Switch(CLLI: CMCYILCCDS0))
708-832-2XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CALUMET CY	CMCYILCCDS0	N/A	Prefix Type: RBOC Switch Name: CALUMET CITY DS0 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: JOLTILJO20T 🔧 Explore Switch(CLLI: CMCYILCCDS0))
708-832-3XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CALUMET CY	CMCYILCCDS0	N/A	Prefix Type: RBOC Switch Name: CALUMET CITY DS0 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: JOLTILJO20T 🔧 Explore Switch(CLLI: CMCYILCCDS0))
708-832-4XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CALUMET CY	CMCYILCCDS0	N/A	Prefix Type: RBOC Switch Name: CALUMET CITY DS0 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: JOLTILJO20T 🔧 Explore Switch(CLLI: CMCYILCCDS0))
708-832-9XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CALUMET CY	CMCYILCCDS0	N/A	Prefix Type: RBOC Switch Name: CALUMET CITY DS0 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: JOLTILJO20T 🔧 Explore Switch(CLLI: CMCYILCCDS0))
708-836	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	MAYWOOD	HLSDILHDDS0	00/00/0000	Prefix Type: RBOC Switch Name: HILLSIDE Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: JOLTILJO20T 🔧 Explore Switch(CLLI: HLSDILHDDS0))
708-836 is split into 1,000-number blocks - detail below
708-836-1XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	MAYWOOD	HLSDILHDDS0	N/A	Prefix Type: RBOC Switch Name: HILLSIDE Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: JOLTILJO20T 🔧 Explore Switch(CLLI: HLSDILHDDS0))
708-836-2XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	MAYWOOD	HLSDILHDDS0	N/A	Prefix Type: RBOC Switch Name: HILLSIDE Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: JOLTILJO20T 🔧 Explore Switch(CLLI: HLSDILHDDS0))
708-836-3XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	MAYWOOD	HLSDILHDDS0	N/A	Prefix Type: RBOC Switch Name: HILLSIDE Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: JOLTILJO20T 🔧 Explore Switch(CLLI: HLSDILHDDS0))
708-836-4XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	MAYWOOD	HLSDILHDDS0	N/A	Prefix Type: RBOC Switch Name: HILLSIDE Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: JOLTILJO20T 🔧 Explore Switch(CLLI: HLSDILHDDS0))
708-836-5XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	MAYWOOD	HLSDILHDDS0	N/A	Prefix Type: RBOC Switch Name: HILLSIDE Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: JOLTILJO20T 🔧 Explore Switch(CLLI: HLSDILHDDS0))
708-836-7XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	MAYWOOD	HLSDILHDDS0	N/A	Prefix Type: RBOC Switch Name: HILLSIDE Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: JOLTILJO20T 🔧 Explore Switch(CLLI: HLSDILHDDS0))
708-836-8XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	MAYWOOD	HLSDILHDDS0	N/A	Prefix Type: RBOC Switch Name: HILLSIDE Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: JOLTILJO20T 🔧 Explore Switch(CLLI: HLSDILHDDS0))
708-836-9XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	MAYWOOD	HLSDILHDDS0	N/A	Prefix Type: RBOC Switch Name: HILLSIDE Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: JOLTILJO20T 🔧 Explore Switch(CLLI: HLSDILHDDS0))
708-839	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	WILLOW SPG	SMMTILSMDS0	00/00/0000	Prefix Type: RBOC Switch Name: SUMMIT Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: JOLTILJO20T 🔧 Explore Switch(CLLI: SMMTILSMDS0))
708-841	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	RIVERDALE	RVDLILRDDS0	00/00/0000	Prefix Type: RBOC Switch Name: RIVERDALE Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: JOLTILJO20T 🔧 Explore Switch(CLLI: RVDLILRDDS0))
708-845 is split into 1,000-number blocks - detail below
708-845-3XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	TINLEYPARK	TNPKILTPDS0	12/09/2002	Prefix Type: RBOC Switch Name: TINLEY PARK Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: JOLTILJO20T 🔧 Explore Switch(CLLI: TNPKILTPDS0))
708-848	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	OAK PARK	OKPKILOPRP0	00/00/0000	Prefix Type: RBOC Switch Name: OAK PARK Switch Type: N/A LATA: Chicago IL METRO (358) Tandem: N/A 🔧 Explore Switch(CLLI: OKPKILOPRP0))
708-849	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	RIVERDALE	RVDLILRDDS0	00/00/0000	Prefix Type: RBOC Switch Name: RIVERDALE Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: JOLTILJO20T 🔧 Explore Switch(CLLI: RVDLILRDDS0))
708-857	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	OAK LAWN	OKLWILOLDS0	00/00/0000	Prefix Type: RBOC Switch Name: OAK LAWN Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: JOLTILJO20T 🔧 Explore Switch(CLLI: OKLWILOLDS0))
708-857 is split into 1,000-number blocks - detail below
708-857-1XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	OAK LAWN	OKLWILOLDS0	N/A	Prefix Type: RBOC Switch Name: OAK LAWN Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: JOLTILJO20T 🔧 Explore Switch(CLLI: OKLWILOLDS0))
708-857-2XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	OAK LAWN	OKLWILOLDS0	N/A	Prefix Type: RBOC Switch Name: OAK LAWN Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: JOLTILJO20T 🔧 Explore Switch(CLLI: OKLWILOLDS0))
708-857-3XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	OAK LAWN	OKLWILOLDS0	N/A	Prefix Type: RBOC Switch Name: OAK LAWN Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: JOLTILJO20T 🔧 Explore Switch(CLLI: OKLWILOLDS0))
708-857-4XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	OAK LAWN	OKLWILOLDS0	N/A	Prefix Type: RBOC Switch Name: OAK LAWN Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: JOLTILJO20T 🔧 Explore Switch(CLLI: OKLWILOLDS0))
708-857-5XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	OAK LAWN	OKLWILOLDS0	N/A	Prefix Type: RBOC Switch Name: OAK LAWN Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: JOLTILJO20T 🔧 Explore Switch(CLLI: OKLWILOLDS0))
708-857-7XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	OAK LAWN	OKLWILOLDS0	N/A	Prefix Type: RBOC Switch Name: OAK LAWN Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: JOLTILJO20T 🔧 Explore Switch(CLLI: OKLWILOLDS0))
708-857-8XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	OAK LAWN	OKLWILOLDS0	N/A	Prefix Type: RBOC Switch Name: OAK LAWN Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: JOLTILJO20T 🔧 Explore Switch(CLLI: OKLWILOLDS0))
708-857-9XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	OAK LAWN	OKLWILOLDS0	N/A	Prefix Type: RBOC Switch Name: OAK LAWN Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: JOLTILJO20T 🔧 Explore Switch(CLLI: OKLWILOLDS0))
708-862	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CALUMET CY	CMCYILCCDS0	00/00/0000	Prefix Type: RBOC Switch Name: CALUMET CITY DS0 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: JOLTILJO20T 🔧 Explore Switch(CLLI: CMCYILCCDS0))
708-863	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CICERO	CICRILCIDS0	00/00/0000	Prefix Type: RBOC Switch Name: CICERO DS0 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: LBRDILLM20T 🔧 Explore Switch(CLLI: CICRILCIDS0))
708-865	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	MAYWOOD	BLWDILBWDS0	00/00/0000	Prefix Type: RBOC Switch Name: BELLWOOD DS0 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILST55T 🔧 Explore Switch(CLLI: BLWDILBWDS0))
708-867	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN03	CHCGILNEDS0	00/00/0000	Prefix Type: RBOC Switch Name: CHCG NEWCASTLE Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILNE50T 🔧 Explore Switch(CLLI: CHCGILNEDS0))
708-868	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CALUMET CY	CMCYILCCDS0	00/00/0000	Prefix Type: RBOC Switch Name: CALUMET CITY DS0 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: JOLTILJO20T 🔧 Explore Switch(CLLI: CMCYILCCDS0))
708-873	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	ORLAND	ORPKILORDS0	00/00/0000	Prefix Type: RBOC Switch Name: ORLAND PARK Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: JOLTILJO20T 🔧 Explore Switch(CLLI: ORPKILORDS0))
708-877	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	THORNTON	HRVYILHADS0	00/00/0000	Prefix Type: RBOC Switch Name: HARVEY Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: JOLTILJO20T 🔧 Explore Switch(CLLI: HRVYILHADS0))
708-877 is split into 1,000-number blocks - detail below
708-877-1XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	THORNTON	HRVYILHADS0	N/A	Prefix Type: RBOC Switch Name: HARVEY Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: JOLTILJO20T 🔧 Explore Switch(CLLI: HRVYILHADS0))
708-877-2XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	THORNTON	HRVYILHADS0	N/A	Prefix Type: RBOC Switch Name: HARVEY Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: JOLTILJO20T 🔧 Explore Switch(CLLI: HRVYILHADS0))
708-877-3XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	THORNTON	HRVYILHADS0	N/A	Prefix Type: RBOC Switch Name: HARVEY Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: JOLTILJO20T 🔧 Explore Switch(CLLI: HRVYILHADS0))
708-877-4XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	THORNTON	HRVYILHADS0	N/A	Prefix Type: RBOC Switch Name: HARVEY Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: JOLTILJO20T 🔧 Explore Switch(CLLI: HRVYILHADS0))
708-877-5XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	THORNTON	HRVYILHADS0	N/A	Prefix Type: RBOC Switch Name: HARVEY Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: JOLTILJO20T 🔧 Explore Switch(CLLI: HRVYILHADS0))
708-877-6XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	THORNTON	HRVYILHADS0	N/A	Prefix Type: RBOC Switch Name: HARVEY Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: JOLTILJO20T 🔧 Explore Switch(CLLI: HRVYILHADS0))
708-877-7XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	THORNTON	HRVYILHADS0	N/A	Prefix Type: RBOC Switch Name: HARVEY Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: JOLTILJO20T 🔧 Explore Switch(CLLI: HRVYILHADS0))
708-889	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	LANSING	CMCYILCCDS1	00/00/0000	Prefix Type: RBOC Switch Name: CALUMET CITY DS1 Switch Type: EWSD LATA: Chicago IL METRO (358) Tandem: JOLTILJO20T 🔧 Explore Switch(CLLI: CMCYILCCDS1))
708-889 is split into 1,000-number blocks - detail below
708-889-0XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	LANSING	CMCYILCCDS1	N/A	Prefix Type: RBOC Switch Name: CALUMET CITY DS1 Switch Type: EWSD LATA: Chicago IL METRO (358) Tandem: JOLTILJO20T 🔧 Explore Switch(CLLI: CMCYILCCDS1))
708-889-1XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	LANSING	CMCYILCCDS1	N/A	Prefix Type: RBOC Switch Name: CALUMET CITY DS1 Switch Type: EWSD LATA: Chicago IL METRO (358) Tandem: JOLTILJO20T 🔧 Explore Switch(CLLI: CMCYILCCDS1))
708-889-2XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	LANSING	CMCYILCCDS1	N/A	Prefix Type: RBOC Switch Name: CALUMET CITY DS1 Switch Type: EWSD LATA: Chicago IL METRO (358) Tandem: JOLTILJO20T 🔧 Explore Switch(CLLI: CMCYILCCDS1))
708-889-9XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	LANSING	CMCYILCCDS1	N/A	Prefix Type: RBOC Switch Name: CALUMET CITY DS1 Switch Type: EWSD LATA: Chicago IL METRO (358) Tandem: JOLTILJO20T 🔧 Explore Switch(CLLI: CMCYILCCDS1))
708-891	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CALUMET CY	CMCYILCCDS0	00/00/0000	Prefix Type: RBOC Switch Name: CALUMET CITY DS0 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: JOLTILJO20T 🔧 Explore Switch(CLLI: CMCYILCCDS0))
708-895	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	LANSING	CMCYILCCDS0	00/00/0000	Prefix Type: RBOC Switch Name: CALUMET CITY DS0 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: JOLTILJO20T 🔧 Explore Switch(CLLI: CMCYILCCDS0))
708-915	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	HARVEY	HRVYILHADS0	00/00/0000	Prefix Type: RBOC Switch Name: HARVEY Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: JOLTILJO20T 🔧 Explore Switch(CLLI: HRVYILHADS0))
708-915 is split into 1,000-number blocks - detail below
708-915-1XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	HARVEY	HRVYILHADS0	N/A	Prefix Type: RBOC Switch Name: HARVEY Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: JOLTILJO20T 🔧 Explore Switch(CLLI: HRVYILHADS0))
708-915-2XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	HARVEY	HRVYILHADS0	N/A	Prefix Type: RBOC Switch Name: HARVEY Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: JOLTILJO20T 🔧 Explore Switch(CLLI: HRVYILHADS0))
708-915-3XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	HARVEY	HRVYILHADS0	N/A	Prefix Type: RBOC Switch Name: HARVEY Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: JOLTILJO20T 🔧 Explore Switch(CLLI: HRVYILHADS0))
708-915-4XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	HARVEY	HRVYILHADS0	N/A	Prefix Type: RBOC Switch Name: HARVEY Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: JOLTILJO20T 🔧 Explore Switch(CLLI: HRVYILHADS0))
708-915-5XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	HARVEY	HRVYILHADS0	N/A	Prefix Type: RBOC Switch Name: HARVEY Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: JOLTILJO20T 🔧 Explore Switch(CLLI: HRVYILHADS0))
708-915-6XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	HARVEY	HRVYILHADS0	N/A	Prefix Type: RBOC Switch Name: HARVEY Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: JOLTILJO20T 🔧 Explore Switch(CLLI: HRVYILHADS0))
708-915-7XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	HARVEY	HRVYILHADS0	N/A	Prefix Type: RBOC Switch Name: HARVEY Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: JOLTILJO20T 🔧 Explore Switch(CLLI: HRVYILHADS0))
708-915-8XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	HARVEY	HRVYILHADS0	N/A	Prefix Type: RBOC Switch Name: HARVEY Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: JOLTILJO20T 🔧 Explore Switch(CLLI: HRVYILHADS0))
708-922	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	HOMEWOOD	HMWDILHODS0	00/00/0000	Prefix Type: RBOC Switch Name: HOMEWOOD Switch Type: EWSD LATA: Chicago IL METRO (358) Tandem: JOLTILJO20T 🔧 Explore Switch(CLLI: HMWDILHODS0))
708-923	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	PALOS PARK	PLPKILPPDS0	00/00/0000	Prefix Type: RBOC Switch Name: PALOS PARK Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: JOLTILJO20T 🔧 Explore Switch(CLLI: PLPKILPPDS0))
708-924	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	SUMMIT	SMMTILSMDS0	00/00/0000	Prefix Type: RBOC Switch Name: SUMMIT Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: JOLTILJO20T 🔧 Explore Switch(CLLI: SMMTILSMDS0))
708-946	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	BEECHER	BCHRILBCDS0	00/00/0000	Prefix Type: RBOC Switch Name: BEECHER Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: JOLTILJO20T 🔧 Explore Switch(CLLI: BCHRILBCDS0))
708-946 is split into 1,000-number blocks - detail below
708-946-0XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	BEECHER	BCHRILBCDS0	N/A	Prefix Type: RBOC Switch Name: BEECHER Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: JOLTILJO20T 🔧 Explore Switch(CLLI: BCHRILBCDS0))
708-946-1XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	BEECHER	BCHRILBCDS0	N/A	Prefix Type: RBOC Switch Name: BEECHER Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: JOLTILJO20T 🔧 Explore Switch(CLLI: BCHRILBCDS0))
708-946-2XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	BEECHER	BCHRILBCDS0	N/A	Prefix Type: RBOC Switch Name: BEECHER Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: JOLTILJO20T 🔧 Explore Switch(CLLI: BCHRILBCDS0))
708-946-3XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	BEECHER	BCHRILBCDS0	N/A	Prefix Type: RBOC Switch Name: BEECHER Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: JOLTILJO20T 🔧 Explore Switch(CLLI: BCHRILBCDS0))
708-946-4XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	BEECHER	BCHRILBCDS0	N/A	Prefix Type: RBOC Switch Name: BEECHER Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: JOLTILJO20T 🔧 Explore Switch(CLLI: BCHRILBCDS0))
708-946-6XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	BEECHER	BCHRILBCDS0	N/A	Prefix Type: RBOC Switch Name: BEECHER Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: JOLTILJO20T 🔧 Explore Switch(CLLI: BCHRILBCDS0))
708-946-9XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	BEECHER	BCHRILBCDS0	N/A	Prefix Type: RBOC Switch Name: BEECHER Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: JOLTILJO20T 🔧 Explore Switch(CLLI: BCHRILBCDS0))
708-947	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	MAYWOOD	HLSDILHDDS0	00/00/0000	Prefix Type: RBOC Switch Name: HILLSIDE Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: JOLTILJO20T 🔧 Explore Switch(CLLI: HLSDILHDDS0))
708-947 is split into 1,000-number blocks - detail below
708-947-0XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	MAYWOOD	HLSDILHDDS0	N/A	Prefix Type: RBOC Switch Name: HILLSIDE Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: JOLTILJO20T 🔧 Explore Switch(CLLI: HLSDILHDDS0))
708-947-1XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	MAYWOOD	HLSDILHDDS0	N/A	Prefix Type: RBOC Switch Name: HILLSIDE Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: JOLTILJO20T 🔧 Explore Switch(CLLI: HLSDILHDDS0))
708-947-2XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	MAYWOOD	HLSDILHDDS0	N/A	Prefix Type: RBOC Switch Name: HILLSIDE Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: JOLTILJO20T 🔧 Explore Switch(CLLI: HLSDILHDDS0))
708-947-3XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	MAYWOOD	HLSDILHDDS0	N/A	Prefix Type: RBOC Switch Name: HILLSIDE Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: JOLTILJO20T 🔧 Explore Switch(CLLI: HLSDILHDDS0))
708-947-4XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	MAYWOOD	HLSDILHDDS0	N/A	Prefix Type: RBOC Switch Name: HILLSIDE Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: JOLTILJO20T 🔧 Explore Switch(CLLI: HLSDILHDDS0))
708-947-5XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	MAYWOOD	HLSDILHDDS0	N/A	Prefix Type: RBOC Switch Name: HILLSIDE Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: JOLTILJO20T 🔧 Explore Switch(CLLI: HLSDILHDDS0))
708-947-7XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	MAYWOOD	HLSDILHDDS0	N/A	Prefix Type: RBOC Switch Name: HILLSIDE Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: JOLTILJO20T 🔧 Explore Switch(CLLI: HLSDILHDDS0))
708-947-8XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	MAYWOOD	HLSDILHDDS0	N/A	Prefix Type: RBOC Switch Name: HILLSIDE Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: JOLTILJO20T 🔧 Explore Switch(CLLI: HLSDILHDDS0))
708-947-9XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	MAYWOOD	HLSDILHDDS0	N/A	Prefix Type: RBOC Switch Name: HILLSIDE Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: JOLTILJO20T 🔧 Explore Switch(CLLI: HLSDILHDDS0))
708-952	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	OAK LAWN	OKLWILOLDS0	00/00/0000	Prefix Type: RBOC Switch Name: OAK LAWN Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: JOLTILJO20T 🔧 Explore Switch(CLLI: OKLWILOLDS0))
708-952 is split into 1,000-number blocks - detail below
708-952-0XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	OAK LAWN	OKLWILOLDS0	N/A	Prefix Type: RBOC Switch Name: OAK LAWN Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: JOLTILJO20T 🔧 Explore Switch(CLLI: OKLWILOLDS0))
708-952-1XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	OAK LAWN	OKLWILOLDS0	N/A	Prefix Type: RBOC Switch Name: OAK LAWN Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: JOLTILJO20T 🔧 Explore Switch(CLLI: OKLWILOLDS0))
708-952-3XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	OAK LAWN	OKLWILOLDS0	N/A	Prefix Type: RBOC Switch Name: OAK LAWN Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: JOLTILJO20T 🔧 Explore Switch(CLLI: OKLWILOLDS0))
708-952-4XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	OAK LAWN	OKLWILOLDS0	N/A	Prefix Type: RBOC Switch Name: OAK LAWN Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: JOLTILJO20T 🔧 Explore Switch(CLLI: OKLWILOLDS0))
708-952-5XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	OAK LAWN	OKLWILOLDS0	N/A	Prefix Type: RBOC Switch Name: OAK LAWN Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: JOLTILJO20T 🔧 Explore Switch(CLLI: OKLWILOLDS0))
708-952-7XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	OAK LAWN	OKLWILOLDS0	N/A	Prefix Type: RBOC Switch Name: OAK LAWN Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: JOLTILJO20T 🔧 Explore Switch(CLLI: OKLWILOLDS0))
708-952-8XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	OAK LAWN	OKLWILOLDS0	N/A	Prefix Type: RBOC Switch Name: OAK LAWN Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: JOLTILJO20T 🔧 Explore Switch(CLLI: OKLWILOLDS0))
708-952-9XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	OAK LAWN	OKLWILOLDS0	N/A	Prefix Type: RBOC Switch Name: OAK LAWN Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: JOLTILJO20T 🔧 Explore Switch(CLLI: OKLWILOLDS0))
708-957	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	HOMEWOOD	HMWDILHODS0	00/00/0000	Prefix Type: RBOC Switch Name: HOMEWOOD Switch Type: EWSD LATA: Chicago IL METRO (358) Tandem: JOLTILJO20T 🔧 Explore Switch(CLLI: HMWDILHODS0))
708-974	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	PALOS PARK	HCHLILHHDS0	00/00/0000	Prefix Type: RBOC Switch Name: HICKORY HILLS Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: JOLTILJO20T 🔧 Explore Switch(CLLI: HCHLILHHDS0))
773-202	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN03	CHCGILKIDS0	00/00/0000	Prefix Type: RBOC Switch Name: CHCG KILDARE DS0 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILNE20T 🔧 Explore Switch(CLLI: CHCGILKIDS0))
773-202 is split into 1,000-number blocks - detail below
773-202-0XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN03	CHCGILKIDS0	N/A	Prefix Type: RBOC Switch Name: CHCG KILDARE DS0 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILNE20T 🔧 Explore Switch(CLLI: CHCGILKIDS0))
773-202-1XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN03	CHCGILKIDS0	N/A	Prefix Type: RBOC Switch Name: CHCG KILDARE DS0 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILNE20T 🔧 Explore Switch(CLLI: CHCGILKIDS0))
773-202-3XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN03	CHCGILKIDS0	N/A	Prefix Type: RBOC Switch Name: CHCG KILDARE DS0 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILNE20T 🔧 Explore Switch(CLLI: CHCGILKIDS0))
773-202-4XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN03	CHCGILKIDS0	N/A	Prefix Type: RBOC Switch Name: CHCG KILDARE DS0 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILNE20T 🔧 Explore Switch(CLLI: CHCGILKIDS0))
773-202-5XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN03	CHCGILKIDS0	N/A	Prefix Type: RBOC Switch Name: CHCG KILDARE DS0 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILNE20T 🔧 Explore Switch(CLLI: CHCGILKIDS0))
773-202-7XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN03	CHCGILKIDS0	N/A	Prefix Type: RBOC Switch Name: CHCG KILDARE DS0 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILNE20T 🔧 Explore Switch(CLLI: CHCGILKIDS0))
773-202-8XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN03	CHCGILKIDS0	N/A	Prefix Type: RBOC Switch Name: CHCG KILDARE DS0 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILNE20T 🔧 Explore Switch(CLLI: CHCGILKIDS0))
773-202-9XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN03	CHCGILKIDS0	N/A	Prefix Type: RBOC Switch Name: CHCG KILDARE DS0 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILNE20T 🔧 Explore Switch(CLLI: CHCGILKIDS0))
773-205	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN03	CHCGILKIDS0	00/00/0000	Prefix Type: RBOC Switch Name: CHCG KILDARE DS0 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILNE20T 🔧 Explore Switch(CLLI: CHCGILKIDS0))
773-205 is split into 1,000-number blocks - detail below
773-205-0XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN03	CHCGILKIDS0	N/A	Prefix Type: RBOC Switch Name: CHCG KILDARE DS0 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILNE20T 🔧 Explore Switch(CLLI: CHCGILKIDS0))
773-205-1XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN03	CHCGILKIDS0	N/A	Prefix Type: RBOC Switch Name: CHCG KILDARE DS0 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILNE20T 🔧 Explore Switch(CLLI: CHCGILKIDS0))
773-205-2XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN03	CHCGILKIDS0	N/A	Prefix Type: RBOC Switch Name: CHCG KILDARE DS0 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILNE20T 🔧 Explore Switch(CLLI: CHCGILKIDS0))
773-205-3XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN03	CHCGILKIDS0	N/A	Prefix Type: RBOC Switch Name: CHCG KILDARE DS0 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILNE20T 🔧 Explore Switch(CLLI: CHCGILKIDS0))
773-205-4XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN03	CHCGILKIDS0	N/A	Prefix Type: RBOC Switch Name: CHCG KILDARE DS0 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILNE20T 🔧 Explore Switch(CLLI: CHCGILKIDS0))
773-205-5XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN03	CHCGILKIDS0	N/A	Prefix Type: RBOC Switch Name: CHCG KILDARE DS0 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILNE20T 🔧 Explore Switch(CLLI: CHCGILKIDS0))
773-205-6XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN03	CHCGILKIDS0	N/A	Prefix Type: RBOC Switch Name: CHCG KILDARE DS0 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILNE20T 🔧 Explore Switch(CLLI: CHCGILKIDS0))
773-205-8XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN03	CHCGILKIDS0	N/A	Prefix Type: RBOC Switch Name: CHCG KILDARE DS0 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILNE20T 🔧 Explore Switch(CLLI: CHCGILKIDS0))
773-205-9XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN03	CHCGILKIDS0	N/A	Prefix Type: RBOC Switch Name: CHCG KILDARE DS0 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILNE20T 🔧 Explore Switch(CLLI: CHCGILKIDS0))
773-210	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILWB50T	00/00/0000	Prefix Type: RBOC Switch Name: CHCZ 1 Switch Type: Northern Telecom DMS200 (Digital) Host LATA: Chicago IL METRO (358) Tandem: N/A 🔧 Explore Switch(CLLI: CHCGILWB50T))
773-221	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN09	CHCGILSCDS0	00/00/0000	Prefix Type: RBOC Switch Name: CHCG SOU CHCG DS0 Switch Type: EWSD LATA: Chicago IL METRO (358) Tandem: CHCGILST55T 🔧 Explore Switch(CLLI: CHCGILSCDS0))
773-224	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN07	CHCGILSTDS0	00/00/0000	Prefix Type: RBOC Switch Name: CHCG STEWART DS0 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILST55T 🔧 Explore Switch(CLLI: CHCGILSTDS0))
773-227	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN04	CHCGILHBDS1	00/00/0000	Prefix Type: RBOC Switch Name: CHCG HUMBOLDT DS1 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILWB55T 🔧 Explore Switch(CLLI: CHCGILHBDS1))
773-229	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN08	SMMTILSMDS0	00/00/0000	Prefix Type: RBOC Switch Name: SUMMIT Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: JOLTILJO20T 🔧 Explore Switch(CLLI: SMMTILSMDS0))
773-233	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN10	CHCGILBEDS0	00/00/0000	Prefix Type: RBOC Switch Name: CHCG BEVERLY DS0 Switch Type: EWSD LATA: Chicago IL METRO (358) Tandem: CHCGILST55T 🔧 Explore Switch(CLLI: CHCGILBEDS0))
773-235	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN04	CHCGILHBDS1	00/00/0000	Prefix Type: RBOC Switch Name: CHCG HUMBOLDT DS1 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILWB55T 🔧 Explore Switch(CLLI: CHCGILHBDS1))
773-237	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN05	CHCGILMEDS0	00/00/0000	Prefix Type: RBOC Switch Name: CHCG MERRIMAC Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILWB55T 🔧 Explore Switch(CLLI: CHCGILMEDS0))
773-238	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN10	CHCGILBEDS0	00/00/0000	Prefix Type: RBOC Switch Name: CHCG BEVERLY DS0 Switch Type: EWSD LATA: Chicago IL METRO (358) Tandem: CHCGILST55T 🔧 Explore Switch(CLLI: CHCGILBEDS0))
773-239	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN10	CHCGILBEDS0	00/00/0000	Prefix Type: RBOC Switch Name: CHCG BEVERLY DS0 Switch Type: EWSD LATA: Chicago IL METRO (358) Tandem: CHCGILST55T 🔧 Explore Switch(CLLI: CHCGILBEDS0))
773-241	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN07	CHCGILDODS0	00/00/0000	Prefix Type: RBOC Switch Name: CHCG HYDE DOR Switch Type: EWSD LATA: Chicago IL METRO (358) Tandem: CHCGILST55T 🔧 Explore Switch(CLLI: CHCGILDODS0))
773-241 is split into 1,000-number blocks - detail below
773-241-5XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN07	CHCGILDODS0	N/A	Prefix Type: RBOC Switch Name: CHCG HYDE DOR Switch Type: EWSD LATA: Chicago IL METRO (358) Tandem: CHCGILST55T 🔧 Explore Switch(CLLI: CHCGILDODS0))
773-241-6XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN07	CHCGILDODS0	N/A	Prefix Type: RBOC Switch Name: CHCG HYDE DOR Switch Type: EWSD LATA: Chicago IL METRO (358) Tandem: CHCGILST55T 🔧 Explore Switch(CLLI: CHCGILDODS0))
773-242	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN06	CICRILCIDS0	00/00/0000	Prefix Type: RBOC Switch Name: CICERO DS0 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: LBRDILLM20T 🔧 Explore Switch(CLLI: CICRILCIDS0))
773-242 is split into 1,000-number blocks - detail below
773-242-1XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN06	CICRILCIDS0	N/A	Prefix Type: RBOC Switch Name: CICERO DS0 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: LBRDILLM20T 🔧 Explore Switch(CLLI: CICRILCIDS0))
773-244	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN04	CHCGILLWDS0	00/00/0000	Prefix Type: RBOC Switch Name: CHCG LAKEVIEW DS0 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILWB55T 🔧 Explore Switch(CLLI: CHCGILLWDS0))
773-247	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN06	CHCGILLADS0	00/00/0000	Prefix Type: RBOC Switch Name: CHCG LAFAYETTE DS0 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILST55T 🔧 Explore Switch(CLLI: CHCGILLADS0))
773-248	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN04	CHCGILLWDS1	00/00/0000	Prefix Type: RBOC Switch Name: CHCG LAKEVIEW DS1 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILNE50T 🔧 Explore Switch(CLLI: CHCGILLWDS1))
773-252	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN04	CHCGILHBDS1	00/00/0000	Prefix Type: RBOC Switch Name: CHCG HUMBOLDT DS1 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILWB55T 🔧 Explore Switch(CLLI: CHCGILHBDS1))
773-254	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN06	CHCGILLADS0	00/00/0000	Prefix Type: RBOC Switch Name: CHCG LAFAYETTE DS0 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILST55T 🔧 Explore Switch(CLLI: CHCGILLADS0))
773-256	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN07	CHCGILDODS0	00/00/0000	Prefix Type: RBOC Switch Name: CHCG HYDE DOR Switch Type: EWSD LATA: Chicago IL METRO (358) Tandem: CHCGILST55T 🔧 Explore Switch(CLLI: CHCGILDODS0))
773-256 is split into 1,000-number blocks - detail below
773-256-0XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN07	CHCGILDODS0	N/A	Prefix Type: RBOC Switch Name: CHCG HYDE DOR Switch Type: EWSD LATA: Chicago IL METRO (358) Tandem: CHCGILST55T 🔧 Explore Switch(CLLI: CHCGILDODS0))
773-256-1XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN07	CHCGILDODS0	N/A	Prefix Type: RBOC Switch Name: CHCG HYDE DOR Switch Type: EWSD LATA: Chicago IL METRO (358) Tandem: CHCGILST55T 🔧 Explore Switch(CLLI: CHCGILDODS0))
773-256-2XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN07	CHCGILDODS0	N/A	Prefix Type: RBOC Switch Name: CHCG HYDE DOR Switch Type: EWSD LATA: Chicago IL METRO (358) Tandem: CHCGILST55T 🔧 Explore Switch(CLLI: CHCGILDODS0))
773-256-3XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN07	CHCGILDODS0	N/A	Prefix Type: RBOC Switch Name: CHCG HYDE DOR Switch Type: EWSD LATA: Chicago IL METRO (358) Tandem: CHCGILST55T 🔧 Explore Switch(CLLI: CHCGILDODS0))
773-256-4XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN07	CHCGILDODS0	N/A	Prefix Type: RBOC Switch Name: CHCG HYDE DOR Switch Type: EWSD LATA: Chicago IL METRO (358) Tandem: CHCGILST55T 🔧 Explore Switch(CLLI: CHCGILDODS0))
773-256-5XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN07	CHCGILDODS0	N/A	Prefix Type: RBOC Switch Name: CHCG HYDE DOR Switch Type: EWSD LATA: Chicago IL METRO (358) Tandem: CHCGILST55T 🔧 Explore Switch(CLLI: CHCGILDODS0))
773-256-6XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN07	CHCGILDODS0	N/A	Prefix Type: RBOC Switch Name: CHCG HYDE DOR Switch Type: EWSD LATA: Chicago IL METRO (358) Tandem: CHCGILST55T 🔧 Explore Switch(CLLI: CHCGILDODS0))
773-257	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN06	CHCGILLDDS0	00/00/0000	Prefix Type: RBOC Switch Name: CHCG LAWNDALE Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILNE20T 🔧 Explore Switch(CLLI: CHCGILLDDS0))
773-257 is split into 1,000-number blocks - detail below
773-257-1XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN06	CHCGILLDDS0	N/A	Prefix Type: RBOC Switch Name: CHCG LAWNDALE Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILNE20T 🔧 Explore Switch(CLLI: CHCGILLDDS0))
773-257-2XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN06	CHCGILLDDS0	N/A	Prefix Type: RBOC Switch Name: CHCG LAWNDALE Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILNE20T 🔧 Explore Switch(CLLI: CHCGILLDDS0))
773-257-4XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN06	CHCGILLDDS0	N/A	Prefix Type: RBOC Switch Name: CHCG LAWNDALE Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILNE20T 🔧 Explore Switch(CLLI: CHCGILLDDS0))
773-257-5XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN06	CHCGILLDDS0	N/A	Prefix Type: RBOC Switch Name: CHCG LAWNDALE Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILNE20T 🔧 Explore Switch(CLLI: CHCGILLDDS0))
773-257-6XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN06	CHCGILLDDS0	N/A	Prefix Type: RBOC Switch Name: CHCG LAWNDALE Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILNE20T 🔧 Explore Switch(CLLI: CHCGILLDDS0))
773-257-8XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN06	CHCGILLDDS0	N/A	Prefix Type: RBOC Switch Name: CHCG LAWNDALE Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILNE20T 🔧 Explore Switch(CLLI: CHCGILLDDS0))
773-260	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN10	CHCGILPUDS0	00/00/0000	Prefix Type: RBOC Switch Name: CHCG PULLMAN DS0 Switch Type: EWSD LATA: Chicago IL METRO (358) Tandem: CHCGILST55T 🔧 Explore Switch(CLLI: CHCGILPUDS0))
773-260 is split into 1,000-number blocks - detail below
773-260-3XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN10	CHCGILPUDS0	N/A	Prefix Type: RBOC Switch Name: CHCG PULLMAN DS0 Switch Type: EWSD LATA: Chicago IL METRO (358) Tandem: CHCGILST55T 🔧 Explore Switch(CLLI: CHCGILPUDS0))
773-260-4XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN10	CHCGILPUDS0	N/A	Prefix Type: RBOC Switch Name: CHCG PULLMAN DS0 Switch Type: EWSD LATA: Chicago IL METRO (358) Tandem: CHCGILST55T 🔧 Explore Switch(CLLI: CHCGILPUDS0))
773-260-5XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN10	CHCGILPUDS0	N/A	Prefix Type: RBOC Switch Name: CHCG PULLMAN DS0 Switch Type: EWSD LATA: Chicago IL METRO (358) Tandem: CHCGILST55T 🔧 Explore Switch(CLLI: CHCGILPUDS0))
773-260-6XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN10	CHCGILPUDS0	N/A	Prefix Type: RBOC Switch Name: CHCG PULLMAN DS0 Switch Type: EWSD LATA: Chicago IL METRO (358) Tandem: CHCGILST55T 🔧 Explore Switch(CLLI: CHCGILPUDS0))
773-260-7XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN10	CHCGILPUDS0	N/A	Prefix Type: RBOC Switch Name: CHCG PULLMAN DS0 Switch Type: EWSD LATA: Chicago IL METRO (358) Tandem: CHCGILST55T 🔧 Explore Switch(CLLI: CHCGILPUDS0))
773-260-8XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN10	CHCGILPUDS0	N/A	Prefix Type: RBOC Switch Name: CHCG PULLMAN DS0 Switch Type: EWSD LATA: Chicago IL METRO (358) Tandem: CHCGILST55T 🔧 Explore Switch(CLLI: CHCGILPUDS0))
773-260-9XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN10	CHCGILPUDS0	N/A	Prefix Type: RBOC Switch Name: CHCG PULLMAN DS0 Switch Type: EWSD LATA: Chicago IL METRO (358) Tandem: CHCGILST55T 🔧 Explore Switch(CLLI: CHCGILPUDS0))
773-261	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN05	CHCGILAURP0	00/00/0000	Prefix Type: RBOC Switch Name: CHCZ 5 Switch Type: N/A LATA: Chicago IL METRO (358) Tandem: N/A 🔧 Explore Switch(CLLI: CHCGILAURP0))
773-261 is split into 1,000-number blocks - detail below
773-261-0XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN05	CHCGILAURP0	N/A	Prefix Type: RBOC Switch Name: CHCZ 5 Switch Type: N/A LATA: Chicago IL METRO (358) Tandem: N/A 🔧 Explore Switch(CLLI: CHCGILAURP0))
773-261-1XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN05	CHCGILAURP0	N/A	Prefix Type: RBOC Switch Name: CHCZ 5 Switch Type: N/A LATA: Chicago IL METRO (358) Tandem: N/A 🔧 Explore Switch(CLLI: CHCGILAURP0))
773-261-2XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN05	CHCGILAURP0	N/A	Prefix Type: RBOC Switch Name: CHCZ 5 Switch Type: N/A LATA: Chicago IL METRO (358) Tandem: N/A 🔧 Explore Switch(CLLI: CHCGILAURP0))
773-261-3XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN05	CHCGILAURP0	N/A	Prefix Type: RBOC Switch Name: CHCZ 5 Switch Type: N/A LATA: Chicago IL METRO (358) Tandem: N/A 🔧 Explore Switch(CLLI: CHCGILAURP0))
773-261-4XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN05	CHCGILAURP0	N/A	Prefix Type: RBOC Switch Name: CHCZ 5 Switch Type: N/A LATA: Chicago IL METRO (358) Tandem: N/A 🔧 Explore Switch(CLLI: CHCGILAURP0))
773-261-5XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN05	CHCGILAURP0	N/A	Prefix Type: RBOC Switch Name: CHCZ 5 Switch Type: N/A LATA: Chicago IL METRO (358) Tandem: N/A 🔧 Explore Switch(CLLI: CHCGILAURP0))
773-261-6XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN05	CHCGILAURP0	N/A	Prefix Type: RBOC Switch Name: CHCZ 5 Switch Type: N/A LATA: Chicago IL METRO (358) Tandem: N/A 🔧 Explore Switch(CLLI: CHCGILAURP0))
773-261-7XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN05	CHCGILAURP0	N/A	Prefix Type: RBOC Switch Name: CHCZ 5 Switch Type: N/A LATA: Chicago IL METRO (358) Tandem: N/A 🔧 Explore Switch(CLLI: CHCGILAURP0))
773-262	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN02	CHCGILRPDS0	00/00/0000	Prefix Type: RBOC Switch Name: CHCG ROGERS PARK Switch Type: EWSD LATA: Chicago IL METRO (358) Tandem: CHCGILNE50T 🔧 Explore Switch(CLLI: CHCGILRPDS0))
773-264	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN10	CHCGILPUDS0	00/00/0000	Prefix Type: RBOC Switch Name: CHCG PULLMAN DS0 Switch Type: EWSD LATA: Chicago IL METRO (358) Tandem: CHCGILST55T 🔧 Explore Switch(CLLI: CHCGILPUDS0))
773-265	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN06	CHCGILKEDS0	00/00/0000	Prefix Type: RBOC Switch Name: CHCG KEDZIE DS0 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILWB55T 🔧 Explore Switch(CLLI: CHCGILKEDS0))
773-267	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN02	CHCGILIRDS0	00/00/0000	Prefix Type: RBOC Switch Name: CHCG IRVING Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILNE20T 🔧 Explore Switch(CLLI: CHCGILIRDS0))
773-268	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN07	CHCGILOKDS0	00/00/0000	Prefix Type: RBOC Switch Name: CHCG OAKLAND DS0 Switch Type: EWSD LATA: Chicago IL METRO (358) Tandem: CHCGILST55T 🔧 Explore Switch(CLLI: CHCGILOKDS0))
773-269 is split into 1,000-number blocks - detail below
773-269-2XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN04	CHCGILHBDS1	02/27/2002	Prefix Type: RBOC Switch Name: CHCG HUMBOLDT DS1 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILWB55T 🔧 Explore Switch(CLLI: CHCGILHBDS1))
773-271	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN02	CHCGILEDDS0	00/00/0000	Prefix Type: RBOC Switch Name: EDGEWATER DS0 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILNE50T 🔧 Explore Switch(CLLI: CHCGILEDDS0))
773-273	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN02	EVTNILEVDS0	00/00/0000	Prefix Type: RBOC Switch Name: EVANSTON Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILNE20T 🔧 Explore Switch(CLLI: EVTNILEVDS0))
773-273 is split into 1,000-number blocks - detail below
773-273-2XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN02	EVTNILEVDS0	N/A	Prefix Type: RBOC Switch Name: EVANSTON Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILNE20T 🔧 Explore Switch(CLLI: EVTNILEVDS0))
773-273-3XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN02	EVTNILEVDS0	N/A	Prefix Type: RBOC Switch Name: EVANSTON Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILNE20T 🔧 Explore Switch(CLLI: EVTNILEVDS0))
773-273-4XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN02	EVTNILEVDS0	N/A	Prefix Type: RBOC Switch Name: EVANSTON Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILNE20T 🔧 Explore Switch(CLLI: EVTNILEVDS0))
773-274	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN02	CHCGILRPDS0	00/00/0000	Prefix Type: RBOC Switch Name: CHCG ROGERS PARK Switch Type: EWSD LATA: Chicago IL METRO (358) Tandem: CHCGILNE50T 🔧 Explore Switch(CLLI: CHCGILRPDS0))
773-275	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN02	CHCGILEDDS0	00/00/0000	Prefix Type: RBOC Switch Name: EDGEWATER DS0 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILNE50T 🔧 Explore Switch(CLLI: CHCGILEDDS0))
773-276	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN04	CHCGILHBDS1	00/00/0000	Prefix Type: RBOC Switch Name: CHCG HUMBOLDT DS1 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILWB55T 🔧 Explore Switch(CLLI: CHCGILHBDS1))
773-277	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN06	CHCGILLDDS0	00/00/0000	Prefix Type: RBOC Switch Name: CHCG LAWNDALE Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILNE20T 🔧 Explore Switch(CLLI: CHCGILLDDS0))
773-277 is split into 1,000-number blocks - detail below
773-277-0XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN06	CHCGILLDDS0	N/A	Prefix Type: RBOC Switch Name: CHCG LAWNDALE Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILNE20T 🔧 Explore Switch(CLLI: CHCGILLDDS0))
773-277-1XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN06	CHCGILLDDS0	N/A	Prefix Type: RBOC Switch Name: CHCG LAWNDALE Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILNE20T 🔧 Explore Switch(CLLI: CHCGILLDDS0))
773-277-2XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN06	CHCGILLDDS0	N/A	Prefix Type: RBOC Switch Name: CHCG LAWNDALE Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILNE20T 🔧 Explore Switch(CLLI: CHCGILLDDS0))
773-277-4XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN06	CHCGILLDDS0	N/A	Prefix Type: RBOC Switch Name: CHCG LAWNDALE Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILNE20T 🔧 Explore Switch(CLLI: CHCGILLDDS0))
773-277-5XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN06	CHCGILLDDS0	N/A	Prefix Type: RBOC Switch Name: CHCG LAWNDALE Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILNE20T 🔧 Explore Switch(CLLI: CHCGILLDDS0))
773-277-6XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN06	CHCGILLDDS0	N/A	Prefix Type: RBOC Switch Name: CHCG LAWNDALE Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILNE20T 🔧 Explore Switch(CLLI: CHCGILLDDS0))
773-277-8XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN06	CHCGILLDDS0	N/A	Prefix Type: RBOC Switch Name: CHCG LAWNDALE Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILNE20T 🔧 Explore Switch(CLLI: CHCGILLDDS0))
773-278	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN04	CHCGILHBDS1	00/00/0000	Prefix Type: RBOC Switch Name: CHCG HUMBOLDT DS1 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILWB55T 🔧 Explore Switch(CLLI: CHCGILHBDS1))
773-279	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN02	CHCGILIRDS0	00/00/0000	Prefix Type: RBOC Switch Name: CHCG IRVING Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILNE20T 🔧 Explore Switch(CLLI: CHCGILIRDS0))
773-279 is split into 1,000-number blocks - detail below
773-279-0XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN02	CHCGILIRDS0	N/A	Prefix Type: RBOC Switch Name: CHCG IRVING Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILNE20T 🔧 Explore Switch(CLLI: CHCGILIRDS0))
773-279-1XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN02	CHCGILIRDS0	N/A	Prefix Type: RBOC Switch Name: CHCG IRVING Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILNE20T 🔧 Explore Switch(CLLI: CHCGILIRDS0))
773-279-2XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN02	CHCGILIRDS0	N/A	Prefix Type: RBOC Switch Name: CHCG IRVING Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILNE20T 🔧 Explore Switch(CLLI: CHCGILIRDS0))
773-279-3XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN02	CHCGILIRDS0	N/A	Prefix Type: RBOC Switch Name: CHCG IRVING Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILNE20T 🔧 Explore Switch(CLLI: CHCGILIRDS0))
773-279-4XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN02	CHCGILIRDS0	N/A	Prefix Type: RBOC Switch Name: CHCG IRVING Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILNE20T 🔧 Explore Switch(CLLI: CHCGILIRDS0))
773-279-6XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN02	CHCGILIRDS0	N/A	Prefix Type: RBOC Switch Name: CHCG IRVING Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILNE20T 🔧 Explore Switch(CLLI: CHCGILIRDS0))
773-279-7XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN02	CHCGILIRDS0	N/A	Prefix Type: RBOC Switch Name: CHCG IRVING Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILNE20T 🔧 Explore Switch(CLLI: CHCGILIRDS0))
773-279-8XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN02	CHCGILIRDS0	N/A	Prefix Type: RBOC Switch Name: CHCG IRVING Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILNE20T 🔧 Explore Switch(CLLI: CHCGILIRDS0))
773-279-9XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN02	CHCGILIRDS0	N/A	Prefix Type: RBOC Switch Name: CHCG IRVING Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILNE20T 🔧 Explore Switch(CLLI: CHCGILIRDS0))
773-281	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN04	CHCGILLWDS1	00/00/0000	Prefix Type: RBOC Switch Name: CHCG LAKEVIEW DS1 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILNE50T 🔧 Explore Switch(CLLI: CHCGILLWDS1))
773-282	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN03	CHCGILKIDS0	00/00/0000	Prefix Type: RBOC Switch Name: CHCG KILDARE DS0 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILNE20T 🔧 Explore Switch(CLLI: CHCGILKIDS0))
773-283	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN03	CHCGILKIDS0	00/00/0000	Prefix Type: RBOC Switch Name: CHCG KILDARE DS0 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILNE20T 🔧 Explore Switch(CLLI: CHCGILKIDS0))
773-284	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN08	CHCGILPMDS0	00/00/0000	Prefix Type: RBOC Switch Name: CHCG PORTSMOUTH Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILWB55T 🔧 Explore Switch(CLLI: CHCGILPMDS0))
773-285	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN07	CHCGILOKDS0	00/00/0000	Prefix Type: RBOC Switch Name: CHCG OAKLAND DS0 Switch Type: EWSD LATA: Chicago IL METRO (358) Tandem: CHCGILST55T 🔧 Explore Switch(CLLI: CHCGILOKDS0))
773-285 is split into 1,000-number blocks - detail below
773-285-0XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN07	CHCGILOKDS0	N/A	Prefix Type: RBOC Switch Name: CHCG OAKLAND DS0 Switch Type: EWSD LATA: Chicago IL METRO (358) Tandem: CHCGILST55T 🔧 Explore Switch(CLLI: CHCGILOKDS0))
773-285-1XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN07	CHCGILOKDS0	N/A	Prefix Type: RBOC Switch Name: CHCG OAKLAND DS0 Switch Type: EWSD LATA: Chicago IL METRO (358) Tandem: CHCGILST55T 🔧 Explore Switch(CLLI: CHCGILOKDS0))
773-285-2XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN07	CHCGILOKDS0	N/A	Prefix Type: RBOC Switch Name: CHCG OAKLAND DS0 Switch Type: EWSD LATA: Chicago IL METRO (358) Tandem: CHCGILST55T 🔧 Explore Switch(CLLI: CHCGILOKDS0))
773-285-3XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN07	CHCGILOKDS0	N/A	Prefix Type: RBOC Switch Name: CHCG OAKLAND DS0 Switch Type: EWSD LATA: Chicago IL METRO (358) Tandem: CHCGILST55T 🔧 Explore Switch(CLLI: CHCGILOKDS0))
773-285-4XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN07	CHCGILOKDS0	N/A	Prefix Type: RBOC Switch Name: CHCG OAKLAND DS0 Switch Type: EWSD LATA: Chicago IL METRO (358) Tandem: CHCGILST55T 🔧 Explore Switch(CLLI: CHCGILOKDS0))
773-285-5XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN07	CHCGILOKDS0	N/A	Prefix Type: RBOC Switch Name: CHCG OAKLAND DS0 Switch Type: EWSD LATA: Chicago IL METRO (358) Tandem: CHCGILST55T 🔧 Explore Switch(CLLI: CHCGILOKDS0))
773-285-7XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN07	CHCGILOKDS0	N/A	Prefix Type: RBOC Switch Name: CHCG OAKLAND DS0 Switch Type: EWSD LATA: Chicago IL METRO (358) Tandem: CHCGILST55T 🔧 Explore Switch(CLLI: CHCGILOKDS0))
773-285-8XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN07	CHCGILOKDS0	N/A	Prefix Type: RBOC Switch Name: CHCG OAKLAND DS0 Switch Type: EWSD LATA: Chicago IL METRO (358) Tandem: CHCGILST55T 🔧 Explore Switch(CLLI: CHCGILOKDS0))
773-285-9XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN07	CHCGILOKDS0	N/A	Prefix Type: RBOC Switch Name: CHCG OAKLAND DS0 Switch Type: EWSD LATA: Chicago IL METRO (358) Tandem: CHCGILST55T 🔧 Explore Switch(CLLI: CHCGILOKDS0))
773-286	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN03	CHCGILKIDS0	00/00/0000	Prefix Type: RBOC Switch Name: CHCG KILDARE DS0 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILNE20T 🔧 Explore Switch(CLLI: CHCGILKIDS0))
773-287	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN05	CHCGILAURP0	00/00/0000	Prefix Type: RBOC Switch Name: CHCZ 5 Switch Type: N/A LATA: Chicago IL METRO (358) Tandem: N/A 🔧 Explore Switch(CLLI: CHCGILAURP0))
773-288	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN07	CHCGILDODS0	00/00/0000	Prefix Type: RBOC Switch Name: CHCG HYDE DOR Switch Type: EWSD LATA: Chicago IL METRO (358) Tandem: CHCGILST55T 🔧 Explore Switch(CLLI: CHCGILDODS0))
773-288 is split into 1,000-number blocks - detail below
773-288-0XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN07	CHCGILDODS0	N/A	Prefix Type: RBOC Switch Name: CHCG HYDE DOR Switch Type: EWSD LATA: Chicago IL METRO (358) Tandem: CHCGILST55T 🔧 Explore Switch(CLLI: CHCGILDODS0))
773-288-1XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN07	CHCGILDODS0	N/A	Prefix Type: RBOC Switch Name: CHCG HYDE DOR Switch Type: EWSD LATA: Chicago IL METRO (358) Tandem: CHCGILST55T 🔧 Explore Switch(CLLI: CHCGILDODS0))
773-288-2XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN07	CHCGILDODS0	N/A	Prefix Type: RBOC Switch Name: CHCG HYDE DOR Switch Type: EWSD LATA: Chicago IL METRO (358) Tandem: CHCGILST55T 🔧 Explore Switch(CLLI: CHCGILDODS0))
773-288-3XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN07	CHCGILDODS0	N/A	Prefix Type: RBOC Switch Name: CHCG HYDE DOR Switch Type: EWSD LATA: Chicago IL METRO (358) Tandem: CHCGILST55T 🔧 Explore Switch(CLLI: CHCGILDODS0))
773-288-4XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN07	CHCGILDODS0	N/A	Prefix Type: RBOC Switch Name: CHCG HYDE DOR Switch Type: EWSD LATA: Chicago IL METRO (358) Tandem: CHCGILST55T 🔧 Explore Switch(CLLI: CHCGILDODS0))
773-288-5XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN07	CHCGILDODS0	N/A	Prefix Type: RBOC Switch Name: CHCG HYDE DOR Switch Type: EWSD LATA: Chicago IL METRO (358) Tandem: CHCGILST55T 🔧 Explore Switch(CLLI: CHCGILDODS0))
773-288-6XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN07	CHCGILDODS0	N/A	Prefix Type: RBOC Switch Name: CHCG HYDE DOR Switch Type: EWSD LATA: Chicago IL METRO (358) Tandem: CHCGILST55T 🔧 Explore Switch(CLLI: CHCGILDODS0))
773-288-7XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN07	CHCGILDODS0	N/A	Prefix Type: RBOC Switch Name: CHCG HYDE DOR Switch Type: EWSD LATA: Chicago IL METRO (358) Tandem: CHCGILST55T 🔧 Explore Switch(CLLI: CHCGILDODS0))
773-288-8XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN07	CHCGILDODS0	N/A	Prefix Type: RBOC Switch Name: CHCG HYDE DOR Switch Type: EWSD LATA: Chicago IL METRO (358) Tandem: CHCGILST55T 🔧 Explore Switch(CLLI: CHCGILDODS0))
773-289 is split into 1,000-number blocks - detail below
773-289-3XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN04	CHCGILHBDS0	04/19/2001	Prefix Type: RBOC Switch Name: CHCG HUMBOLDT DS0 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILNE50T 🔧 Explore Switch(CLLI: CHCGILHBDS0))
773-289-4XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN04	CHCGILHBDS0	04/19/2001	Prefix Type: RBOC Switch Name: CHCG HUMBOLDT DS0 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILNE50T 🔧 Explore Switch(CLLI: CHCGILHBDS0))
773-291	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN10	CHCGILPUDS0	00/00/0000	Prefix Type: RBOC Switch Name: CHCG PULLMAN DS0 Switch Type: EWSD LATA: Chicago IL METRO (358) Tandem: CHCGILST55T 🔧 Explore Switch(CLLI: CHCGILPUDS0))
773-292	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN04	CHCGILHBDS1	00/00/0000	Prefix Type: RBOC Switch Name: CHCG HUMBOLDT DS1 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILWB55T 🔧 Explore Switch(CLLI: CHCGILHBDS1))
773-293	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN02	CHCGILEDDS0	00/00/0000	Prefix Type: RBOC Switch Name: EDGEWATER DS0 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILNE50T 🔧 Explore Switch(CLLI: CHCGILEDDS0))
773-293 is split into 1,000-number blocks - detail below
773-293-0XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN02	CHCGILEDDS0	N/A	Prefix Type: RBOC Switch Name: EDGEWATER DS0 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILNE50T 🔧 Explore Switch(CLLI: CHCGILEDDS0))
773-293-1XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN02	CHCGILEDDS0	N/A	Prefix Type: RBOC Switch Name: EDGEWATER DS0 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILNE50T 🔧 Explore Switch(CLLI: CHCGILEDDS0))
773-293-2XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN02	CHCGILEDDS0	N/A	Prefix Type: RBOC Switch Name: EDGEWATER DS0 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILNE50T 🔧 Explore Switch(CLLI: CHCGILEDDS0))
773-293-3XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN02	CHCGILEDDS0	N/A	Prefix Type: RBOC Switch Name: EDGEWATER DS0 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILNE50T 🔧 Explore Switch(CLLI: CHCGILEDDS0))
773-293-4XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN02	CHCGILEDDS0	N/A	Prefix Type: RBOC Switch Name: EDGEWATER DS0 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILNE50T 🔧 Explore Switch(CLLI: CHCGILEDDS0))
773-293-5XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN02	CHCGILEDDS0	N/A	Prefix Type: RBOC Switch Name: EDGEWATER DS0 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILNE50T 🔧 Explore Switch(CLLI: CHCGILEDDS0))
773-293-8XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN02	CHCGILEDDS0	N/A	Prefix Type: RBOC Switch Name: EDGEWATER DS0 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILNE50T 🔧 Explore Switch(CLLI: CHCGILEDDS0))
773-296	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN04	CHCGILLWDS0	00/00/0000	Prefix Type: RBOC Switch Name: CHCG LAKEVIEW DS0 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILWB55T 🔧 Explore Switch(CLLI: CHCGILLWDS0))
773-298	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN10	CHCGILBEDS0	00/00/0000	Prefix Type: RBOC Switch Name: CHCG BEVERLY DS0 Switch Type: EWSD LATA: Chicago IL METRO (358) Tandem: CHCGILST55T 🔧 Explore Switch(CLLI: CHCGILBEDS0))
773-324	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN07	CHCGILDODS0	00/00/0000	Prefix Type: RBOC Switch Name: CHCG HYDE DOR Switch Type: EWSD LATA: Chicago IL METRO (358) Tandem: CHCGILST55T 🔧 Explore Switch(CLLI: CHCGILDODS0))
773-325	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN04	CHCGILLWDS0	00/00/0000	Prefix Type: RBOC Switch Name: CHCG LAKEVIEW DS0 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILWB55T 🔧 Explore Switch(CLLI: CHCGILLWDS0))
773-327	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN04	CHCGILLWDS1	00/00/0000	Prefix Type: RBOC Switch Name: CHCG LAKEVIEW DS1 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILNE50T 🔧 Explore Switch(CLLI: CHCGILLWDS1))
773-328 is split into 1,000-number blocks - detail below
773-328-7XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN04	CHCGILHBDS0	07/19/2001	Prefix Type: RBOC Switch Name: CHCG HUMBOLDT DS0 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILNE50T 🔧 Explore Switch(CLLI: CHCGILHBDS0))
773-334	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN02	CHCGILEDDS0	00/00/0000	Prefix Type: RBOC Switch Name: EDGEWATER DS0 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILNE50T 🔧 Explore Switch(CLLI: CHCGILEDDS0))
773-338	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN02	CHCGILRPDS0	00/00/0000	Prefix Type: RBOC Switch Name: CHCG ROGERS PARK Switch Type: EWSD LATA: Chicago IL METRO (358) Tandem: CHCGILNE50T 🔧 Explore Switch(CLLI: CHCGILRPDS0))
773-341 is split into 1,000-number blocks - detail below
773-341-5XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN10	CHCGILBEDS0	11/11/2004	Prefix Type: RBOC Switch Name: CHCG BEVERLY DS0 Switch Type: EWSD LATA: Chicago IL METRO (358) Tandem: CHCGILST55T 🔧 Explore Switch(CLLI: CHCGILBEDS0))
773-342	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN04	CHCGILHBDS1	00/00/0000	Prefix Type: RBOC Switch Name: CHCG HUMBOLDT DS1 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILWB55T 🔧 Explore Switch(CLLI: CHCGILHBDS1))
773-348	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN04	CHCGILLWDS1	00/00/0000	Prefix Type: RBOC Switch Name: CHCG LAKEVIEW DS1 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILNE50T 🔧 Explore Switch(CLLI: CHCGILLWDS1))
773-356	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN09	CHCGILSCDS0	00/00/0000	Prefix Type: RBOC Switch Name: CHCG SOU CHCG DS0 Switch Type: EWSD LATA: Chicago IL METRO (358) Tandem: CHCGILST55T 🔧 Explore Switch(CLLI: CHCGILSCDS0))
773-359 is split into 1,000-number blocks - detail below
773-359-5XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN09	CHCGILSCDS0	05/19/2000	Prefix Type: RBOC Switch Name: CHCG SOU CHCG DS0 Switch Type: EWSD LATA: Chicago IL METRO (358) Tandem: CHCGILST55T 🔧 Explore Switch(CLLI: CHCGILSCDS0))
773-361	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN07	CHCGILSTDS0	00/00/0000	Prefix Type: RBOC Switch Name: CHCG STEWART DS0 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILST55T 🔧 Explore Switch(CLLI: CHCGILSTDS0))
773-363	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN07	CHCGILDODS0	00/00/0000	Prefix Type: RBOC Switch Name: CHCG HYDE DOR Switch Type: EWSD LATA: Chicago IL METRO (358) Tandem: CHCGILST55T 🔧 Explore Switch(CLLI: CHCGILDODS0))
773-371	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN07	CHCGILSTDS0	00/00/0000	Prefix Type: RBOC Switch Name: CHCG STEWART DS0 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILST55T 🔧 Explore Switch(CLLI: CHCGILSTDS0))
773-371 is split into 1,000-number blocks - detail below
773-371-0XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN07	CHCGILSTDS0	N/A	Prefix Type: RBOC Switch Name: CHCG STEWART DS0 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILST55T 🔧 Explore Switch(CLLI: CHCGILSTDS0))
773-371-2XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN07	CHCGILSTDS0	N/A	Prefix Type: RBOC Switch Name: CHCG STEWART DS0 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILST55T 🔧 Explore Switch(CLLI: CHCGILSTDS0))
773-371-3XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN07	CHCGILSTDS0	N/A	Prefix Type: RBOC Switch Name: CHCG STEWART DS0 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILST55T 🔧 Explore Switch(CLLI: CHCGILSTDS0))
773-371-4XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN07	CHCGILSTDS0	N/A	Prefix Type: RBOC Switch Name: CHCG STEWART DS0 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILST55T 🔧 Explore Switch(CLLI: CHCGILSTDS0))
773-371-6XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN07	CHCGILSTDS0	N/A	Prefix Type: RBOC Switch Name: CHCG STEWART DS0 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILST55T 🔧 Explore Switch(CLLI: CHCGILSTDS0))
773-371-7XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN07	CHCGILSTDS0	N/A	Prefix Type: RBOC Switch Name: CHCG STEWART DS0 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILST55T 🔧 Explore Switch(CLLI: CHCGILSTDS0))
773-371-8XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN07	CHCGILSTDS0	N/A	Prefix Type: RBOC Switch Name: CHCG STEWART DS0 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILST55T 🔧 Explore Switch(CLLI: CHCGILSTDS0))
773-373	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN07	CHCGILOKDS0	00/00/0000	Prefix Type: RBOC Switch Name: CHCG OAKLAND DS0 Switch Type: EWSD LATA: Chicago IL METRO (358) Tandem: CHCGILST55T 🔧 Explore Switch(CLLI: CHCGILOKDS0))
773-373 is split into 1,000-number blocks - detail below
773-373-2XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN07	CHCGILOKDS0	N/A	Prefix Type: RBOC Switch Name: CHCG OAKLAND DS0 Switch Type: EWSD LATA: Chicago IL METRO (358) Tandem: CHCGILST55T 🔧 Explore Switch(CLLI: CHCGILOKDS0))
773-373-3XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN07	CHCGILOKDS0	N/A	Prefix Type: RBOC Switch Name: CHCG OAKLAND DS0 Switch Type: EWSD LATA: Chicago IL METRO (358) Tandem: CHCGILST55T 🔧 Explore Switch(CLLI: CHCGILOKDS0))
773-373-4XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN07	CHCGILOKDS0	N/A	Prefix Type: RBOC Switch Name: CHCG OAKLAND DS0 Switch Type: EWSD LATA: Chicago IL METRO (358) Tandem: CHCGILST55T 🔧 Explore Switch(CLLI: CHCGILOKDS0))
773-373-6XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN07	CHCGILOKDS0	N/A	Prefix Type: RBOC Switch Name: CHCG OAKLAND DS0 Switch Type: EWSD LATA: Chicago IL METRO (358) Tandem: CHCGILST55T 🔧 Explore Switch(CLLI: CHCGILOKDS0))
773-373-7XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN07	CHCGILOKDS0	N/A	Prefix Type: RBOC Switch Name: CHCG OAKLAND DS0 Switch Type: EWSD LATA: Chicago IL METRO (358) Tandem: CHCGILST55T 🔧 Explore Switch(CLLI: CHCGILOKDS0))
773-373-8XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN07	CHCGILOKDS0	N/A	Prefix Type: RBOC Switch Name: CHCG OAKLAND DS0 Switch Type: EWSD LATA: Chicago IL METRO (358) Tandem: CHCGILST55T 🔧 Explore Switch(CLLI: CHCGILOKDS0))
773-374	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN09	CHCGILSCDS0	00/00/0000	Prefix Type: RBOC Switch Name: CHCG SOU CHCG DS0 Switch Type: EWSD LATA: Chicago IL METRO (358) Tandem: CHCGILST55T 🔧 Explore Switch(CLLI: CHCGILSCDS0))
773-375	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN09	CHCGILSCDS0	00/00/0000	Prefix Type: RBOC Switch Name: CHCG SOU CHCG DS0 Switch Type: EWSD LATA: Chicago IL METRO (358) Tandem: CHCGILST55T 🔧 Explore Switch(CLLI: CHCGILSCDS0))
773-376	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN06	CHCGILLADS0	00/00/0000	Prefix Type: RBOC Switch Name: CHCG LAFAYETTE DS0 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILST55T 🔧 Explore Switch(CLLI: CHCGILLADS0))
773-378	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN05	CHCGILAURP0	00/00/0000	Prefix Type: RBOC Switch Name: CHCZ 5 Switch Type: N/A LATA: Chicago IL METRO (358) Tandem: N/A 🔧 Explore Switch(CLLI: CHCGILAURP0))
773-378 is split into 1,000-number blocks - detail below
773-378-0XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN05	CHCGILAURP0	N/A	Prefix Type: RBOC Switch Name: CHCZ 5 Switch Type: N/A LATA: Chicago IL METRO (358) Tandem: N/A 🔧 Explore Switch(CLLI: CHCGILAURP0))
773-378-1XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN05	CHCGILAURP0	N/A	Prefix Type: RBOC Switch Name: CHCZ 5 Switch Type: N/A LATA: Chicago IL METRO (358) Tandem: N/A 🔧 Explore Switch(CLLI: CHCGILAURP0))
773-378-2XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN05	CHCGILAURP0	N/A	Prefix Type: RBOC Switch Name: CHCZ 5 Switch Type: N/A LATA: Chicago IL METRO (358) Tandem: N/A 🔧 Explore Switch(CLLI: CHCGILAURP0))
773-378-3XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN05	CHCGILAURP0	N/A	Prefix Type: RBOC Switch Name: CHCZ 5 Switch Type: N/A LATA: Chicago IL METRO (358) Tandem: N/A 🔧 Explore Switch(CLLI: CHCGILAURP0))
773-378-5XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN05	CHCGILAURP0	N/A	Prefix Type: RBOC Switch Name: CHCZ 5 Switch Type: N/A LATA: Chicago IL METRO (358) Tandem: N/A 🔧 Explore Switch(CLLI: CHCGILAURP0))
773-378-6XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN05	CHCGILAURP0	N/A	Prefix Type: RBOC Switch Name: CHCZ 5 Switch Type: N/A LATA: Chicago IL METRO (358) Tandem: N/A 🔧 Explore Switch(CLLI: CHCGILAURP0))
773-378-8XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN05	CHCGILAURP0	N/A	Prefix Type: RBOC Switch Name: CHCZ 5 Switch Type: N/A LATA: Chicago IL METRO (358) Tandem: N/A 🔧 Explore Switch(CLLI: CHCGILAURP0))
773-379	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN05	CHCGILAURP0	00/00/0000	Prefix Type: RBOC Switch Name: CHCZ 5 Switch Type: N/A LATA: Chicago IL METRO (358) Tandem: N/A 🔧 Explore Switch(CLLI: CHCGILAURP0))
773-379 is split into 1,000-number blocks - detail below
773-379-0XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN05	CHCGILAURP0	N/A	Prefix Type: RBOC Switch Name: CHCZ 5 Switch Type: N/A LATA: Chicago IL METRO (358) Tandem: N/A 🔧 Explore Switch(CLLI: CHCGILAURP0))
773-379-1XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN05	CHCGILAURP0	N/A	Prefix Type: RBOC Switch Name: CHCZ 5 Switch Type: N/A LATA: Chicago IL METRO (358) Tandem: N/A 🔧 Explore Switch(CLLI: CHCGILAURP0))
773-379-2XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN05	CHCGILAURP0	N/A	Prefix Type: RBOC Switch Name: CHCZ 5 Switch Type: N/A LATA: Chicago IL METRO (358) Tandem: N/A 🔧 Explore Switch(CLLI: CHCGILAURP0))
773-379-3XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN05	CHCGILAURP0	N/A	Prefix Type: RBOC Switch Name: CHCZ 5 Switch Type: N/A LATA: Chicago IL METRO (358) Tandem: N/A 🔧 Explore Switch(CLLI: CHCGILAURP0))
773-379-4XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN05	CHCGILAURP0	N/A	Prefix Type: RBOC Switch Name: CHCZ 5 Switch Type: N/A LATA: Chicago IL METRO (358) Tandem: N/A 🔧 Explore Switch(CLLI: CHCGILAURP0))
773-379-7XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN05	CHCGILAURP0	N/A	Prefix Type: RBOC Switch Name: CHCZ 5 Switch Type: N/A LATA: Chicago IL METRO (358) Tandem: N/A 🔧 Explore Switch(CLLI: CHCGILAURP0))
773-380	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN03	PRRGILXLDS0	00/00/0000	Prefix Type: RBOC Switch Name: PARK RIDGE DS0 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: LBRDILLM20T 🔧 Explore Switch(CLLI: PRRGILXLDS0))
773-380 is split into 1,000-number blocks - detail below
773-380-0XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN03	PRRGILXLDS0	N/A	Prefix Type: RBOC Switch Name: PARK RIDGE DS0 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: LBRDILLM20T 🔧 Explore Switch(CLLI: PRRGILXLDS0))
773-380-1XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN03	PRRGILXLDS0	N/A	Prefix Type: RBOC Switch Name: PARK RIDGE DS0 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: LBRDILLM20T 🔧 Explore Switch(CLLI: PRRGILXLDS0))
773-380-2XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN03	PRRGILXLDS0	N/A	Prefix Type: RBOC Switch Name: PARK RIDGE DS0 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: LBRDILLM20T 🔧 Explore Switch(CLLI: PRRGILXLDS0))
773-380-3XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN03	PRRGILXLDS0	N/A	Prefix Type: RBOC Switch Name: PARK RIDGE DS0 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: LBRDILLM20T 🔧 Explore Switch(CLLI: PRRGILXLDS0))
773-380-4XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN03	PRRGILXLDS0	N/A	Prefix Type: RBOC Switch Name: PARK RIDGE DS0 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: LBRDILLM20T 🔧 Explore Switch(CLLI: PRRGILXLDS0))
773-380-6XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN03	PRRGILXLDS0	N/A	Prefix Type: RBOC Switch Name: PARK RIDGE DS0 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: LBRDILLM20T 🔧 Explore Switch(CLLI: PRRGILXLDS0))
773-380-7XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN03	PRRGILXLDS0	N/A	Prefix Type: RBOC Switch Name: PARK RIDGE DS0 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: LBRDILLM20T 🔧 Explore Switch(CLLI: PRRGILXLDS0))
773-380-8XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN03	PRRGILXLDS0	N/A	Prefix Type: RBOC Switch Name: PARK RIDGE DS0 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: LBRDILLM20T 🔧 Explore Switch(CLLI: PRRGILXLDS0))
773-381	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN02	CHCGILRPDS0	00/00/0000	Prefix Type: RBOC Switch Name: CHCG ROGERS PARK Switch Type: EWSD LATA: Chicago IL METRO (358) Tandem: CHCGILNE50T 🔧 Explore Switch(CLLI: CHCGILRPDS0))
773-384	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN04	CHCGILHBDS1	00/00/0000	Prefix Type: RBOC Switch Name: CHCG HUMBOLDT DS1 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILWB55T 🔧 Explore Switch(CLLI: CHCGILHBDS1))
773-385	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN05	CHCGILMEDS0	00/00/0000	Prefix Type: RBOC Switch Name: CHCG MERRIMAC Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILWB55T 🔧 Explore Switch(CLLI: CHCGILMEDS0))
773-388	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN04	CHCGILLWDS0	00/00/0000	Prefix Type: RBOC Switch Name: CHCG LAKEVIEW DS0 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILWB55T 🔧 Explore Switch(CLLI: CHCGILLWDS0))
773-394	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN04	CHCGILHBDS1	00/00/0000	Prefix Type: RBOC Switch Name: CHCG HUMBOLDT DS1 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILWB55T 🔧 Explore Switch(CLLI: CHCGILHBDS1))
773-394 is split into 1,000-number blocks - detail below
773-394-5XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN04	CHCGILHBDS1	N/A	Prefix Type: RBOC Switch Name: CHCG HUMBOLDT DS1 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILWB55T 🔧 Explore Switch(CLLI: CHCGILHBDS1))
773-394-6XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN04	CHCGILHBDS1	N/A	Prefix Type: RBOC Switch Name: CHCG HUMBOLDT DS1 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILWB55T 🔧 Explore Switch(CLLI: CHCGILHBDS1))
773-394-7XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN04	CHCGILHBDS1	N/A	Prefix Type: RBOC Switch Name: CHCG HUMBOLDT DS1 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILWB55T 🔧 Explore Switch(CLLI: CHCGILHBDS1))
773-394-8XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN04	CHCGILHBDS1	N/A	Prefix Type: RBOC Switch Name: CHCG HUMBOLDT DS1 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILWB55T 🔧 Explore Switch(CLLI: CHCGILHBDS1))
773-395	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN04	CHCGILHBDS1	00/00/0000	Prefix Type: RBOC Switch Name: CHCG HUMBOLDT DS1 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILWB55T 🔧 Explore Switch(CLLI: CHCGILHBDS1))
773-395 is split into 1,000-number blocks - detail below
773-395-3XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN04	CHCGILHBDS1	N/A	Prefix Type: RBOC Switch Name: CHCG HUMBOLDT DS1 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILWB55T 🔧 Explore Switch(CLLI: CHCGILHBDS1))
773-395-4XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN04	CHCGILHBDS1	N/A	Prefix Type: RBOC Switch Name: CHCG HUMBOLDT DS1 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILWB55T 🔧 Explore Switch(CLLI: CHCGILHBDS1))
773-395-5XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN04	CHCGILHBDS1	N/A	Prefix Type: RBOC Switch Name: CHCG HUMBOLDT DS1 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILWB55T 🔧 Explore Switch(CLLI: CHCGILHBDS1))
773-395-6XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN04	CHCGILHBDS1	N/A	Prefix Type: RBOC Switch Name: CHCG HUMBOLDT DS1 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILWB55T 🔧 Explore Switch(CLLI: CHCGILHBDS1))
773-395-7XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN04	CHCGILHBDS1	N/A	Prefix Type: RBOC Switch Name: CHCG HUMBOLDT DS1 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILWB55T 🔧 Explore Switch(CLLI: CHCGILHBDS1))
773-395-9XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN04	CHCGILHBDS1	N/A	Prefix Type: RBOC Switch Name: CHCG HUMBOLDT DS1 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILWB55T 🔧 Explore Switch(CLLI: CHCGILHBDS1))
773-399	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN03	PRRGILXLDS0	00/00/0000	Prefix Type: RBOC Switch Name: PARK RIDGE DS0 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: LBRDILLM20T 🔧 Explore Switch(CLLI: PRRGILXLDS0))
773-399 is split into 1,000-number blocks - detail below
773-399-1XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN03	PRRGILXLDS0	N/A	Prefix Type: RBOC Switch Name: PARK RIDGE DS0 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: LBRDILLM20T 🔧 Explore Switch(CLLI: PRRGILXLDS0))
773-399-2XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN03	PRRGILXLDS0	N/A	Prefix Type: RBOC Switch Name: PARK RIDGE DS0 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: LBRDILLM20T 🔧 Explore Switch(CLLI: PRRGILXLDS0))
773-399-3XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN03	PRRGILXLDS0	N/A	Prefix Type: RBOC Switch Name: PARK RIDGE DS0 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: LBRDILLM20T 🔧 Explore Switch(CLLI: PRRGILXLDS0))
773-399-4XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN03	PRRGILXLDS0	N/A	Prefix Type: RBOC Switch Name: PARK RIDGE DS0 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: LBRDILLM20T 🔧 Explore Switch(CLLI: PRRGILXLDS0))
773-399-5XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN03	PRRGILXLDS0	N/A	Prefix Type: RBOC Switch Name: PARK RIDGE DS0 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: LBRDILLM20T 🔧 Explore Switch(CLLI: PRRGILXLDS0))
773-399-6XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN03	PRRGILXLDS0	N/A	Prefix Type: RBOC Switch Name: PARK RIDGE DS0 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: LBRDILLM20T 🔧 Explore Switch(CLLI: PRRGILXLDS0))
773-399-7XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN03	PRRGILXLDS0	N/A	Prefix Type: RBOC Switch Name: PARK RIDGE DS0 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: LBRDILLM20T 🔧 Explore Switch(CLLI: PRRGILXLDS0))
773-399-8XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN03	PRRGILXLDS0	N/A	Prefix Type: RBOC Switch Name: PARK RIDGE DS0 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: LBRDILLM20T 🔧 Explore Switch(CLLI: PRRGILXLDS0))
773-404	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN04	CHCGILLWDS0	00/00/0000	Prefix Type: RBOC Switch Name: CHCG LAKEVIEW DS0 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILWB55T 🔧 Explore Switch(CLLI: CHCGILLWDS0))
773-427	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN03	CHCGILKIDS0	00/00/0000	Prefix Type: RBOC Switch Name: CHCG KILDARE DS0 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILNE20T 🔧 Explore Switch(CLLI: CHCGILKIDS0))
773-427 is split into 1,000-number blocks - detail below
773-427-0XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN03	CHCGILKIDS0	N/A	Prefix Type: RBOC Switch Name: CHCG KILDARE DS0 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILNE20T 🔧 Explore Switch(CLLI: CHCGILKIDS0))
773-427-1XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN03	CHCGILKIDS0	N/A	Prefix Type: RBOC Switch Name: CHCG KILDARE DS0 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILNE20T 🔧 Explore Switch(CLLI: CHCGILKIDS0))
773-427-2XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN03	CHCGILKIDS0	N/A	Prefix Type: RBOC Switch Name: CHCG KILDARE DS0 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILNE20T 🔧 Explore Switch(CLLI: CHCGILKIDS0))
773-427-3XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN03	CHCGILKIDS0	N/A	Prefix Type: RBOC Switch Name: CHCG KILDARE DS0 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILNE20T 🔧 Explore Switch(CLLI: CHCGILKIDS0))
773-427-4XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN03	CHCGILKIDS0	N/A	Prefix Type: RBOC Switch Name: CHCG KILDARE DS0 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILNE20T 🔧 Explore Switch(CLLI: CHCGILKIDS0))
773-427-5XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN03	CHCGILKIDS0	N/A	Prefix Type: RBOC Switch Name: CHCG KILDARE DS0 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILNE20T 🔧 Explore Switch(CLLI: CHCGILKIDS0))
773-427-6XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN03	CHCGILKIDS0	N/A	Prefix Type: RBOC Switch Name: CHCG KILDARE DS0 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILNE20T 🔧 Explore Switch(CLLI: CHCGILKIDS0))
773-427-7XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN03	CHCGILKIDS0	N/A	Prefix Type: RBOC Switch Name: CHCG KILDARE DS0 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILNE20T 🔧 Explore Switch(CLLI: CHCGILKIDS0))
773-427-9XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN03	CHCGILKIDS0	N/A	Prefix Type: RBOC Switch Name: CHCG KILDARE DS0 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILNE20T 🔧 Explore Switch(CLLI: CHCGILKIDS0))
773-429	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN10	CHCGILBEDS0	00/00/0000	Prefix Type: RBOC Switch Name: CHCG BEVERLY DS0 Switch Type: EWSD LATA: Chicago IL METRO (358) Tandem: CHCGILST55T 🔧 Explore Switch(CLLI: CHCGILBEDS0))
773-434	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN08	CHCGILPRDS0	00/00/0000	Prefix Type: RBOC Switch Name: CHCG PROSPECT Switch Type: EWSD LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILPRDS0))
773-436	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN08	CHCGILPRDS0	00/00/0000	Prefix Type: RBOC Switch Name: CHCG PROSPECT Switch Type: EWSD LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILPRDS0))
773-442 is split into 1,000-number blocks - detail below
773-442-4XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN02	CHCGILIRDS0	04/07/2000	Prefix Type: RBOC Switch Name: CHCG IRVING Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILNE20T 🔧 Explore Switch(CLLI: CHCGILIRDS0))
773-442-5XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN02	CHCGILIRDS0	04/07/2000	Prefix Type: RBOC Switch Name: CHCG IRVING Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILNE20T 🔧 Explore Switch(CLLI: CHCGILIRDS0))
773-442-6XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN02	CHCGILIRDS0	04/07/2000	Prefix Type: RBOC Switch Name: CHCG IRVING Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILNE20T 🔧 Explore Switch(CLLI: CHCGILIRDS0))
773-442-8XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN02	CHCGILIRDS0	04/19/2001	Prefix Type: RBOC Switch Name: CHCG IRVING Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILNE20T 🔧 Explore Switch(CLLI: CHCGILIRDS0))
773-444	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN03	PRRGILXLDS1	00/00/0000	Prefix Type: RBOC Switch Name: PARK RIDGE DS1 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: LBRDILLM20T 🔧 Explore Switch(CLLI: PRRGILXLDS1))
773-444 is split into 1,000-number blocks - detail below
773-444-0XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN03	PRRGILXLDS1	N/A	Prefix Type: RBOC Switch Name: PARK RIDGE DS1 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: LBRDILLM20T 🔧 Explore Switch(CLLI: PRRGILXLDS1))
773-444-1XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN03	PRRGILXLDS1	N/A	Prefix Type: RBOC Switch Name: PARK RIDGE DS1 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: LBRDILLM20T 🔧 Explore Switch(CLLI: PRRGILXLDS1))
773-444-2XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN03	PRRGILXLDS1	N/A	Prefix Type: RBOC Switch Name: PARK RIDGE DS1 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: LBRDILLM20T 🔧 Explore Switch(CLLI: PRRGILXLDS1))
773-444-3XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN03	PRRGILXLDS1	N/A	Prefix Type: RBOC Switch Name: PARK RIDGE DS1 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: LBRDILLM20T 🔧 Explore Switch(CLLI: PRRGILXLDS1))
773-444-4XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN03	PRRGILXLDS1	N/A	Prefix Type: RBOC Switch Name: PARK RIDGE DS1 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: LBRDILLM20T 🔧 Explore Switch(CLLI: PRRGILXLDS1))
773-444-5XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN03	PRRGILXLDS1	N/A	Prefix Type: RBOC Switch Name: PARK RIDGE DS1 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: LBRDILLM20T 🔧 Explore Switch(CLLI: PRRGILXLDS1))
773-444-6XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN03	PRRGILXLDS1	N/A	Prefix Type: RBOC Switch Name: PARK RIDGE DS1 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: LBRDILLM20T 🔧 Explore Switch(CLLI: PRRGILXLDS1))
773-445	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN10	CHCGILBEDS0	00/00/0000	Prefix Type: RBOC Switch Name: CHCG BEVERLY DS0 Switch Type: EWSD LATA: Chicago IL METRO (358) Tandem: CHCGILST55T 🔧 Explore Switch(CLLI: CHCGILBEDS0))
773-451	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN07	CHCGILOKDS0	00/00/0000	Prefix Type: RBOC Switch Name: CHCG OAKLAND DS0 Switch Type: EWSD LATA: Chicago IL METRO (358) Tandem: CHCGILST55T 🔧 Explore Switch(CLLI: CHCGILOKDS0))
773-451 is split into 1,000-number blocks - detail below
773-451-0XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN07	CHCGILOKDS0	N/A	Prefix Type: RBOC Switch Name: CHCG OAKLAND DS0 Switch Type: EWSD LATA: Chicago IL METRO (358) Tandem: CHCGILST55T 🔧 Explore Switch(CLLI: CHCGILOKDS0))
773-451-1XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN07	CHCGILOKDS0	N/A	Prefix Type: RBOC Switch Name: CHCG OAKLAND DS0 Switch Type: EWSD LATA: Chicago IL METRO (358) Tandem: CHCGILST55T 🔧 Explore Switch(CLLI: CHCGILOKDS0))
773-451-2XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN07	CHCGILOKDS0	N/A	Prefix Type: RBOC Switch Name: CHCG OAKLAND DS0 Switch Type: EWSD LATA: Chicago IL METRO (358) Tandem: CHCGILST55T 🔧 Explore Switch(CLLI: CHCGILOKDS0))
773-451-3XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN07	CHCGILOKDS0	N/A	Prefix Type: RBOC Switch Name: CHCG OAKLAND DS0 Switch Type: EWSD LATA: Chicago IL METRO (358) Tandem: CHCGILST55T 🔧 Explore Switch(CLLI: CHCGILOKDS0))
773-451-4XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN07	CHCGILOKDS0	N/A	Prefix Type: RBOC Switch Name: CHCG OAKLAND DS0 Switch Type: EWSD LATA: Chicago IL METRO (358) Tandem: CHCGILST55T 🔧 Explore Switch(CLLI: CHCGILOKDS0))
773-462	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN11	CHCGILOHDS0	00/00/0000	Prefix Type: RBOC Switch Name: CHCG OHARE Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILWB55T 🔧 Explore Switch(CLLI: CHCGILOHDS0))
773-462 is split into 1,000-number blocks - detail below
773-462-0XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN11	CHCGILOHDS0	N/A	Prefix Type: RBOC Switch Name: CHCG OHARE Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILWB55T 🔧 Explore Switch(CLLI: CHCGILOHDS0))
773-462-1XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN11	CHCGILOHDS0	N/A	Prefix Type: RBOC Switch Name: CHCG OHARE Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILWB55T 🔧 Explore Switch(CLLI: CHCGILOHDS0))
773-462-2XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN11	CHCGILOHDS0	N/A	Prefix Type: RBOC Switch Name: CHCG OHARE Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILWB55T 🔧 Explore Switch(CLLI: CHCGILOHDS0))
773-462-3XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN11	CHCGILOHDS0	N/A	Prefix Type: RBOC Switch Name: CHCG OHARE Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILWB55T 🔧 Explore Switch(CLLI: CHCGILOHDS0))
773-462-5XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN11	CHCGILOHDS0	N/A	Prefix Type: RBOC Switch Name: CHCG OHARE Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILWB55T 🔧 Explore Switch(CLLI: CHCGILOHDS0))
773-462-6XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN11	CHCGILOHDS0	N/A	Prefix Type: RBOC Switch Name: CHCG OHARE Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILWB55T 🔧 Explore Switch(CLLI: CHCGILOHDS0))
773-462-7XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN11	CHCGILOHDS0	N/A	Prefix Type: RBOC Switch Name: CHCG OHARE Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILWB55T 🔧 Explore Switch(CLLI: CHCGILOHDS0))
773-462-8XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN11	CHCGILOHDS0	N/A	Prefix Type: RBOC Switch Name: CHCG OHARE Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILWB55T 🔧 Explore Switch(CLLI: CHCGILOHDS0))
773-462-9XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN11	CHCGILOHDS0	N/A	Prefix Type: RBOC Switch Name: CHCG OHARE Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILWB55T 🔧 Explore Switch(CLLI: CHCGILOHDS0))
773-463	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN02	CHCGILIRDS0	00/00/0000	Prefix Type: RBOC Switch Name: CHCG IRVING Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILNE20T 🔧 Explore Switch(CLLI: CHCGILIRDS0))
773-465	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN02	CHCGILRPDS0	00/00/0000	Prefix Type: RBOC Switch Name: CHCG ROGERS PARK Switch Type: EWSD LATA: Chicago IL METRO (358) Tandem: CHCGILNE50T 🔧 Explore Switch(CLLI: CHCGILRPDS0))
773-467	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN03	CHCGILNEDS0	00/00/0000	Prefix Type: RBOC Switch Name: CHCG NEWCASTLE Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILNE50T 🔧 Explore Switch(CLLI: CHCGILNEDS0))
773-467 is split into 1,000-number blocks - detail below
773-467-0XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN03	CHCGILNEDS0	N/A	Prefix Type: RBOC Switch Name: CHCG NEWCASTLE Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILNE50T 🔧 Explore Switch(CLLI: CHCGILNEDS0))
773-467-1XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN03	CHCGILNEDS0	N/A	Prefix Type: RBOC Switch Name: CHCG NEWCASTLE Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILNE50T 🔧 Explore Switch(CLLI: CHCGILNEDS0))
773-467-2XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN03	CHCGILNEDS0	N/A	Prefix Type: RBOC Switch Name: CHCG NEWCASTLE Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILNE50T 🔧 Explore Switch(CLLI: CHCGILNEDS0))
773-467-3XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN03	CHCGILNEDS0	N/A	Prefix Type: RBOC Switch Name: CHCG NEWCASTLE Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILNE50T 🔧 Explore Switch(CLLI: CHCGILNEDS0))
773-467-4XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN03	CHCGILNEDS0	N/A	Prefix Type: RBOC Switch Name: CHCG NEWCASTLE Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILNE50T 🔧 Explore Switch(CLLI: CHCGILNEDS0))
773-467-5XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN03	CHCGILNEDS0	N/A	Prefix Type: RBOC Switch Name: CHCG NEWCASTLE Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILNE50T 🔧 Explore Switch(CLLI: CHCGILNEDS0))
773-467-8XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN03	CHCGILNEDS0	N/A	Prefix Type: RBOC Switch Name: CHCG NEWCASTLE Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILNE50T 🔧 Explore Switch(CLLI: CHCGILNEDS0))
773-467-9XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN03	CHCGILNEDS0	N/A	Prefix Type: RBOC Switch Name: CHCG NEWCASTLE Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILNE50T 🔧 Explore Switch(CLLI: CHCGILNEDS0))
773-468	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN10	CHCGILPUDS0	00/00/0000	Prefix Type: RBOC Switch Name: CHCG PULLMAN DS0 Switch Type: EWSD LATA: Chicago IL METRO (358) Tandem: CHCGILST55T 🔧 Explore Switch(CLLI: CHCGILPUDS0))
773-471	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN08	CHCGILPRDS0	00/00/0000	Prefix Type: RBOC Switch Name: CHCG PROSPECT Switch Type: EWSD LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILPRDS0))
773-472	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN04	CHCGILLWDS1	00/00/0000	Prefix Type: RBOC Switch Name: CHCG LAKEVIEW DS1 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILNE50T 🔧 Explore Switch(CLLI: CHCGILLWDS1))
773-473	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN05	CHCGILAURP0	00/00/0000	Prefix Type: RBOC Switch Name: CHCZ 5 Switch Type: N/A LATA: Chicago IL METRO (358) Tandem: N/A 🔧 Explore Switch(CLLI: CHCGILAURP0))
773-476	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN08	CHCGILPRDS0	00/00/0000	Prefix Type: RBOC Switch Name: CHCG PROSPECT Switch Type: EWSD LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILPRDS0))
773-477	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN04	CHCGILLWDS0	00/00/0000	Prefix Type: RBOC Switch Name: CHCG LAKEVIEW DS0 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILWB55T 🔧 Explore Switch(CLLI: CHCGILLWDS0))
773-478	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN02	CHCGILIRDS0	00/00/0000	Prefix Type: RBOC Switch Name: CHCG IRVING Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILNE20T 🔧 Explore Switch(CLLI: CHCGILIRDS0))
773-479	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN05	CHCGILMEDS0	00/00/0000	Prefix Type: RBOC Switch Name: CHCG MERRIMAC Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILWB55T 🔧 Explore Switch(CLLI: CHCGILMEDS0))
773-481	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN03	CHCGILKIDS0	00/00/0000	Prefix Type: RBOC Switch Name: CHCG KILDARE DS0 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILNE20T 🔧 Explore Switch(CLLI: CHCGILKIDS0))
773-483	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN07	CHCGILSTDS0	00/00/0000	Prefix Type: RBOC Switch Name: CHCG STEWART DS0 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILST55T 🔧 Explore Switch(CLLI: CHCGILSTDS0))
773-483 is split into 1,000-number blocks - detail below
773-483-0XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN07	CHCGILSTDS0	N/A	Prefix Type: RBOC Switch Name: CHCG STEWART DS0 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILST55T 🔧 Explore Switch(CLLI: CHCGILSTDS0))
773-483-1XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN07	CHCGILSTDS0	N/A	Prefix Type: RBOC Switch Name: CHCG STEWART DS0 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILST55T 🔧 Explore Switch(CLLI: CHCGILSTDS0))
773-483-2XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN07	CHCGILSTDS0	N/A	Prefix Type: RBOC Switch Name: CHCG STEWART DS0 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILST55T 🔧 Explore Switch(CLLI: CHCGILSTDS0))
773-483-5XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN07	CHCGILSTDS0	N/A	Prefix Type: RBOC Switch Name: CHCG STEWART DS0 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILST55T 🔧 Explore Switch(CLLI: CHCGILSTDS0))
773-483-6XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN07	CHCGILSTDS0	N/A	Prefix Type: RBOC Switch Name: CHCG STEWART DS0 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILST55T 🔧 Explore Switch(CLLI: CHCGILSTDS0))
773-483-7XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN07	CHCGILSTDS0	N/A	Prefix Type: RBOC Switch Name: CHCG STEWART DS0 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILST55T 🔧 Explore Switch(CLLI: CHCGILSTDS0))
773-483-9XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN07	CHCGILSTDS0	N/A	Prefix Type: RBOC Switch Name: CHCG STEWART DS0 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILST55T 🔧 Explore Switch(CLLI: CHCGILSTDS0))
773-486	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN04	CHCGILHBDS1	00/00/0000	Prefix Type: RBOC Switch Name: CHCG HUMBOLDT DS1 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILWB55T 🔧 Explore Switch(CLLI: CHCGILHBDS1))
773-487	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN07	CHCGILSTDS0	00/00/0000	Prefix Type: RBOC Switch Name: CHCG STEWART DS0 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILST55T 🔧 Explore Switch(CLLI: CHCGILSTDS0))
773-487 is split into 1,000-number blocks - detail below
773-487-0XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN07	CHCGILSTDS0	N/A	Prefix Type: RBOC Switch Name: CHCG STEWART DS0 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILST55T 🔧 Explore Switch(CLLI: CHCGILSTDS0))
773-487-1XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN07	CHCGILSTDS0	N/A	Prefix Type: RBOC Switch Name: CHCG STEWART DS0 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILST55T 🔧 Explore Switch(CLLI: CHCGILSTDS0))
773-487-3XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN07	CHCGILSTDS0	N/A	Prefix Type: RBOC Switch Name: CHCG STEWART DS0 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILST55T 🔧 Explore Switch(CLLI: CHCGILSTDS0))
773-487-4XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN07	CHCGILSTDS0	N/A	Prefix Type: RBOC Switch Name: CHCG STEWART DS0 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILST55T 🔧 Explore Switch(CLLI: CHCGILSTDS0))
773-487-5XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN07	CHCGILSTDS0	N/A	Prefix Type: RBOC Switch Name: CHCG STEWART DS0 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILST55T 🔧 Explore Switch(CLLI: CHCGILSTDS0))
773-487-6XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN07	CHCGILSTDS0	N/A	Prefix Type: RBOC Switch Name: CHCG STEWART DS0 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILST55T 🔧 Explore Switch(CLLI: CHCGILSTDS0))
773-487-9XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN07	CHCGILSTDS0	N/A	Prefix Type: RBOC Switch Name: CHCG STEWART DS0 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILST55T 🔧 Explore Switch(CLLI: CHCGILSTDS0))
773-488	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN07	CHCGILSTDS1	00/00/0000	Prefix Type: RBOC Switch Name: CHCG STEWART DS1 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILSTDS1))
773-489	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN04	CHCGILHBDS1	00/00/0000	Prefix Type: RBOC Switch Name: CHCG HUMBOLDT DS1 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILWB55T 🔧 Explore Switch(CLLI: CHCGILHBDS1))
773-493	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN07	CHCGILDODS0	00/00/0000	Prefix Type: RBOC Switch Name: CHCG HYDE DOR Switch Type: EWSD LATA: Chicago IL METRO (358) Tandem: CHCGILST55T 🔧 Explore Switch(CLLI: CHCGILDODS0))
773-493 is split into 1,000-number blocks - detail below
773-493-0XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN07	CHCGILDODS0	N/A	Prefix Type: RBOC Switch Name: CHCG HYDE DOR Switch Type: EWSD LATA: Chicago IL METRO (358) Tandem: CHCGILST55T 🔧 Explore Switch(CLLI: CHCGILDODS0))
773-493-1XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN07	CHCGILDODS0	N/A	Prefix Type: RBOC Switch Name: CHCG HYDE DOR Switch Type: EWSD LATA: Chicago IL METRO (358) Tandem: CHCGILST55T 🔧 Explore Switch(CLLI: CHCGILDODS0))
773-493-2XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN07	CHCGILDODS0	N/A	Prefix Type: RBOC Switch Name: CHCG HYDE DOR Switch Type: EWSD LATA: Chicago IL METRO (358) Tandem: CHCGILST55T 🔧 Explore Switch(CLLI: CHCGILDODS0))
773-493-3XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN07	CHCGILDODS0	N/A	Prefix Type: RBOC Switch Name: CHCG HYDE DOR Switch Type: EWSD LATA: Chicago IL METRO (358) Tandem: CHCGILST55T 🔧 Explore Switch(CLLI: CHCGILDODS0))
773-493-5XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN07	CHCGILDODS0	N/A	Prefix Type: RBOC Switch Name: CHCG HYDE DOR Switch Type: EWSD LATA: Chicago IL METRO (358) Tandem: CHCGILST55T 🔧 Explore Switch(CLLI: CHCGILDODS0))
773-493-6XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN07	CHCGILDODS0	N/A	Prefix Type: RBOC Switch Name: CHCG HYDE DOR Switch Type: EWSD LATA: Chicago IL METRO (358) Tandem: CHCGILST55T 🔧 Explore Switch(CLLI: CHCGILDODS0))
773-493-8XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN07	CHCGILDODS0	N/A	Prefix Type: RBOC Switch Name: CHCG HYDE DOR Switch Type: EWSD LATA: Chicago IL METRO (358) Tandem: CHCGILST55T 🔧 Explore Switch(CLLI: CHCGILDODS0))
773-493-9XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN07	CHCGILDODS0	N/A	Prefix Type: RBOC Switch Name: CHCG HYDE DOR Switch Type: EWSD LATA: Chicago IL METRO (358) Tandem: CHCGILST55T 🔧 Explore Switch(CLLI: CHCGILDODS0))
773-506	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN02	CHCGILEDDS0	00/00/0000	Prefix Type: RBOC Switch Name: EDGEWATER DS0 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILNE50T 🔧 Explore Switch(CLLI: CHCGILEDDS0))
773-508	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN02	CHCGILRPDS0	00/00/0000	Prefix Type: RBOC Switch Name: CHCG ROGERS PARK Switch Type: EWSD LATA: Chicago IL METRO (358) Tandem: CHCGILNE50T 🔧 Explore Switch(CLLI: CHCGILRPDS0))
773-509	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN02	CHCGILIRDS0	00/00/0000	Prefix Type: RBOC Switch Name: CHCG IRVING Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILNE20T 🔧 Explore Switch(CLLI: CHCGILIRDS0))
773-521	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN06	CHCGILLDDS0	00/00/0000	Prefix Type: RBOC Switch Name: CHCG LAWNDALE Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILNE20T 🔧 Explore Switch(CLLI: CHCGILLDDS0))
773-521 is split into 1,000-number blocks - detail below
773-521-0XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN06	CHCGILLDDS0	N/A	Prefix Type: RBOC Switch Name: CHCG LAWNDALE Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILNE20T 🔧 Explore Switch(CLLI: CHCGILLDDS0))
773-521-1XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN06	CHCGILLDDS0	N/A	Prefix Type: RBOC Switch Name: CHCG LAWNDALE Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILNE20T 🔧 Explore Switch(CLLI: CHCGILLDDS0))
773-521-2XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN06	CHCGILLDDS0	N/A	Prefix Type: RBOC Switch Name: CHCG LAWNDALE Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILNE20T 🔧 Explore Switch(CLLI: CHCGILLDDS0))
773-521-4XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN06	CHCGILLDDS0	N/A	Prefix Type: RBOC Switch Name: CHCG LAWNDALE Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILNE20T 🔧 Explore Switch(CLLI: CHCGILLDDS0))
773-521-6XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN06	CHCGILLDDS0	N/A	Prefix Type: RBOC Switch Name: CHCG LAWNDALE Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILNE20T 🔧 Explore Switch(CLLI: CHCGILLDDS0))
773-521-7XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN06	CHCGILLDDS0	N/A	Prefix Type: RBOC Switch Name: CHCG LAWNDALE Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILNE20T 🔧 Explore Switch(CLLI: CHCGILLDDS0))
773-521-8XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN06	CHCGILLDDS0	N/A	Prefix Type: RBOC Switch Name: CHCG LAWNDALE Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILNE20T 🔧 Explore Switch(CLLI: CHCGILLDDS0))
773-521-9XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN06	CHCGILLDDS0	N/A	Prefix Type: RBOC Switch Name: CHCG LAWNDALE Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILNE20T 🔧 Explore Switch(CLLI: CHCGILLDDS0))
773-522	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN06	CHCGILLDDS0	00/00/0000	Prefix Type: RBOC Switch Name: CHCG LAWNDALE Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILNE20T 🔧 Explore Switch(CLLI: CHCGILLDDS0))
773-523	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN06	CHCGILLADS0	00/00/0000	Prefix Type: RBOC Switch Name: CHCG LAFAYETTE DS0 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILST55T 🔧 Explore Switch(CLLI: CHCGILLADS0))
773-525	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN04	CHCGILLWDS1	00/00/0000	Prefix Type: RBOC Switch Name: CHCG LAKEVIEW DS1 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILNE50T 🔧 Explore Switch(CLLI: CHCGILLWDS1))
773-528	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN04	CHCGILLWDS0	00/00/0000	Prefix Type: RBOC Switch Name: CHCG LAKEVIEW DS0 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILWB55T 🔧 Explore Switch(CLLI: CHCGILLWDS0))
773-529	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN04	CHCGILLWDS0	00/00/0000	Prefix Type: RBOC Switch Name: CHCG LAKEVIEW DS0 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILWB55T 🔧 Explore Switch(CLLI: CHCGILLWDS0))
773-533	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN06	CHCGILKEDS0	00/00/0000	Prefix Type: RBOC Switch Name: CHCG KEDZIE DS0 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILWB55T 🔧 Explore Switch(CLLI: CHCGILKEDS0))
773-534	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN06	CHCGILLADS0	00/00/0000	Prefix Type: RBOC Switch Name: CHCG LAFAYETTE DS0 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILST55T 🔧 Explore Switch(CLLI: CHCGILLADS0))
773-535	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN06	CHCGILLADS0	00/00/0000	Prefix Type: RBOC Switch Name: CHCG LAFAYETTE DS0 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILST55T 🔧 Explore Switch(CLLI: CHCGILLADS0))
773-536	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN07	CHCGILOKDS0	00/00/0000	Prefix Type: RBOC Switch Name: CHCG OAKLAND DS0 Switch Type: EWSD LATA: Chicago IL METRO (358) Tandem: CHCGILST55T 🔧 Explore Switch(CLLI: CHCGILOKDS0))
773-536 is split into 1,000-number blocks - detail below
773-536-0XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN07	CHCGILOKDS0	N/A	Prefix Type: RBOC Switch Name: CHCG OAKLAND DS0 Switch Type: EWSD LATA: Chicago IL METRO (358) Tandem: CHCGILST55T 🔧 Explore Switch(CLLI: CHCGILOKDS0))
773-536-2XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN07	CHCGILOKDS0	N/A	Prefix Type: RBOC Switch Name: CHCG OAKLAND DS0 Switch Type: EWSD LATA: Chicago IL METRO (358) Tandem: CHCGILST55T 🔧 Explore Switch(CLLI: CHCGILOKDS0))
773-536-3XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN07	CHCGILOKDS0	N/A	Prefix Type: RBOC Switch Name: CHCG OAKLAND DS0 Switch Type: EWSD LATA: Chicago IL METRO (358) Tandem: CHCGILST55T 🔧 Explore Switch(CLLI: CHCGILOKDS0))
773-536-5XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN07	CHCGILOKDS0	N/A	Prefix Type: RBOC Switch Name: CHCG OAKLAND DS0 Switch Type: EWSD LATA: Chicago IL METRO (358) Tandem: CHCGILST55T 🔧 Explore Switch(CLLI: CHCGILOKDS0))
773-536-8XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN07	CHCGILOKDS0	N/A	Prefix Type: RBOC Switch Name: CHCG OAKLAND DS0 Switch Type: EWSD LATA: Chicago IL METRO (358) Tandem: CHCGILST55T 🔧 Explore Switch(CLLI: CHCGILOKDS0))
773-538	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN07	CHCGILOKDS0	00/00/0000	Prefix Type: RBOC Switch Name: CHCG OAKLAND DS0 Switch Type: EWSD LATA: Chicago IL METRO (358) Tandem: CHCGILST55T 🔧 Explore Switch(CLLI: CHCGILOKDS0))
773-538 is split into 1,000-number blocks - detail below
773-538-0XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN07	CHCGILOKDS0	N/A	Prefix Type: RBOC Switch Name: CHCG OAKLAND DS0 Switch Type: EWSD LATA: Chicago IL METRO (358) Tandem: CHCGILST55T 🔧 Explore Switch(CLLI: CHCGILOKDS0))
773-538-1XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN07	CHCGILOKDS0	N/A	Prefix Type: RBOC Switch Name: CHCG OAKLAND DS0 Switch Type: EWSD LATA: Chicago IL METRO (358) Tandem: CHCGILST55T 🔧 Explore Switch(CLLI: CHCGILOKDS0))
773-538-2XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN07	CHCGILOKDS0	N/A	Prefix Type: RBOC Switch Name: CHCG OAKLAND DS0 Switch Type: EWSD LATA: Chicago IL METRO (358) Tandem: CHCGILST55T 🔧 Explore Switch(CLLI: CHCGILOKDS0))
773-538-4XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN07	CHCGILOKDS0	N/A	Prefix Type: RBOC Switch Name: CHCG OAKLAND DS0 Switch Type: EWSD LATA: Chicago IL METRO (358) Tandem: CHCGILST55T 🔧 Explore Switch(CLLI: CHCGILOKDS0))
773-538-5XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN07	CHCGILOKDS0	N/A	Prefix Type: RBOC Switch Name: CHCG OAKLAND DS0 Switch Type: EWSD LATA: Chicago IL METRO (358) Tandem: CHCGILST55T 🔧 Explore Switch(CLLI: CHCGILOKDS0))
773-538-8XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN07	CHCGILOKDS0	N/A	Prefix Type: RBOC Switch Name: CHCG OAKLAND DS0 Switch Type: EWSD LATA: Chicago IL METRO (358) Tandem: CHCGILST55T 🔧 Explore Switch(CLLI: CHCGILOKDS0))
773-538-9XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN07	CHCGILOKDS0	N/A	Prefix Type: RBOC Switch Name: CHCG OAKLAND DS0 Switch Type: EWSD LATA: Chicago IL METRO (358) Tandem: CHCGILST55T 🔧 Explore Switch(CLLI: CHCGILOKDS0))
773-539	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN02	CHCGILIRDS0	00/00/0000	Prefix Type: RBOC Switch Name: CHCG IRVING Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILNE20T 🔧 Explore Switch(CLLI: CHCGILIRDS0))
773-542	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN06	CHCGILLDDS0	00/00/0000	Prefix Type: RBOC Switch Name: CHCG LAWNDALE Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILNE20T 🔧 Explore Switch(CLLI: CHCGILLDDS0))
773-542 is split into 1,000-number blocks - detail below
773-542-0XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN06	CHCGILLDDS0	N/A	Prefix Type: RBOC Switch Name: CHCG LAWNDALE Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILNE20T 🔧 Explore Switch(CLLI: CHCGILLDDS0))
773-542-1XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN06	CHCGILLDDS0	N/A	Prefix Type: RBOC Switch Name: CHCG LAWNDALE Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILNE20T 🔧 Explore Switch(CLLI: CHCGILLDDS0))
773-542-2XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN06	CHCGILLDDS0	N/A	Prefix Type: RBOC Switch Name: CHCG LAWNDALE Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILNE20T 🔧 Explore Switch(CLLI: CHCGILLDDS0))
773-542-5XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN06	CHCGILLDDS0	N/A	Prefix Type: RBOC Switch Name: CHCG LAWNDALE Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILNE20T 🔧 Explore Switch(CLLI: CHCGILLDDS0))
773-542-6XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN06	CHCGILLDDS0	N/A	Prefix Type: RBOC Switch Name: CHCG LAWNDALE Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILNE20T 🔧 Explore Switch(CLLI: CHCGILLDDS0))
773-542-7XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN06	CHCGILLDDS0	N/A	Prefix Type: RBOC Switch Name: CHCG LAWNDALE Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILNE20T 🔧 Explore Switch(CLLI: CHCGILLDDS0))
773-542-9XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN06	CHCGILLDDS0	N/A	Prefix Type: RBOC Switch Name: CHCG LAWNDALE Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILNE20T 🔧 Explore Switch(CLLI: CHCGILLDDS0))
773-545	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN03	CHCGILKIDS0	00/00/0000	Prefix Type: RBOC Switch Name: CHCG KILDARE DS0 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILNE20T 🔧 Explore Switch(CLLI: CHCGILKIDS0))
773-546	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN10	CHCGILPUDS0	00/00/0000	Prefix Type: RBOC Switch Name: CHCG PULLMAN DS0 Switch Type: EWSD LATA: Chicago IL METRO (358) Tandem: CHCGILST55T 🔧 Explore Switch(CLLI: CHCGILPUDS0))
773-546 is split into 1,000-number blocks - detail below
773-546-0XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN10	CHCGILPUDS0	N/A	Prefix Type: RBOC Switch Name: CHCG PULLMAN DS0 Switch Type: EWSD LATA: Chicago IL METRO (358) Tandem: CHCGILST55T 🔧 Explore Switch(CLLI: CHCGILPUDS0))
773-546-1XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN10	CHCGILPUDS0	N/A	Prefix Type: RBOC Switch Name: CHCG PULLMAN DS0 Switch Type: EWSD LATA: Chicago IL METRO (358) Tandem: CHCGILST55T 🔧 Explore Switch(CLLI: CHCGILPUDS0))
773-546-2XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN10	CHCGILPUDS0	N/A	Prefix Type: RBOC Switch Name: CHCG PULLMAN DS0 Switch Type: EWSD LATA: Chicago IL METRO (358) Tandem: CHCGILST55T 🔧 Explore Switch(CLLI: CHCGILPUDS0))
773-546-3XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN10	CHCGILPUDS0	N/A	Prefix Type: RBOC Switch Name: CHCG PULLMAN DS0 Switch Type: EWSD LATA: Chicago IL METRO (358) Tandem: CHCGILST55T 🔧 Explore Switch(CLLI: CHCGILPUDS0))
773-546-4XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN10	CHCGILPUDS0	N/A	Prefix Type: RBOC Switch Name: CHCG PULLMAN DS0 Switch Type: EWSD LATA: Chicago IL METRO (358) Tandem: CHCGILST55T 🔧 Explore Switch(CLLI: CHCGILPUDS0))
773-546-5XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN10	CHCGILPUDS0	N/A	Prefix Type: RBOC Switch Name: CHCG PULLMAN DS0 Switch Type: EWSD LATA: Chicago IL METRO (358) Tandem: CHCGILST55T 🔧 Explore Switch(CLLI: CHCGILPUDS0))
773-546-6XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN10	CHCGILPUDS0	N/A	Prefix Type: RBOC Switch Name: CHCG PULLMAN DS0 Switch Type: EWSD LATA: Chicago IL METRO (358) Tandem: CHCGILST55T 🔧 Explore Switch(CLLI: CHCGILPUDS0))
773-546-7XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN10	CHCGILPUDS0	N/A	Prefix Type: RBOC Switch Name: CHCG PULLMAN DS0 Switch Type: EWSD LATA: Chicago IL METRO (358) Tandem: CHCGILST55T 🔧 Explore Switch(CLLI: CHCGILPUDS0))
773-548	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN07	CHCGILOKDS0	00/00/0000	Prefix Type: RBOC Switch Name: CHCG OAKLAND DS0 Switch Type: EWSD LATA: Chicago IL METRO (358) Tandem: CHCGILST55T 🔧 Explore Switch(CLLI: CHCGILOKDS0))
773-548 is split into 1,000-number blocks - detail below
773-548-1XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN07	CHCGILOKDS0	N/A	Prefix Type: RBOC Switch Name: CHCG OAKLAND DS0 Switch Type: EWSD LATA: Chicago IL METRO (358) Tandem: CHCGILST55T 🔧 Explore Switch(CLLI: CHCGILOKDS0))
773-548-3XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN07	CHCGILOKDS0	N/A	Prefix Type: RBOC Switch Name: CHCG OAKLAND DS0 Switch Type: EWSD LATA: Chicago IL METRO (358) Tandem: CHCGILST55T 🔧 Explore Switch(CLLI: CHCGILOKDS0))
773-548-4XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN07	CHCGILOKDS0	N/A	Prefix Type: RBOC Switch Name: CHCG OAKLAND DS0 Switch Type: EWSD LATA: Chicago IL METRO (358) Tandem: CHCGILST55T 🔧 Explore Switch(CLLI: CHCGILOKDS0))
773-548-5XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN07	CHCGILOKDS0	N/A	Prefix Type: RBOC Switch Name: CHCG OAKLAND DS0 Switch Type: EWSD LATA: Chicago IL METRO (358) Tandem: CHCGILST55T 🔧 Explore Switch(CLLI: CHCGILOKDS0))
773-548-6XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN07	CHCGILOKDS0	N/A	Prefix Type: RBOC Switch Name: CHCG OAKLAND DS0 Switch Type: EWSD LATA: Chicago IL METRO (358) Tandem: CHCGILST55T 🔧 Explore Switch(CLLI: CHCGILOKDS0))
773-548-7XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN07	CHCGILOKDS0	N/A	Prefix Type: RBOC Switch Name: CHCG OAKLAND DS0 Switch Type: EWSD LATA: Chicago IL METRO (358) Tandem: CHCGILST55T 🔧 Explore Switch(CLLI: CHCGILOKDS0))
773-548-8XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN07	CHCGILOKDS0	N/A	Prefix Type: RBOC Switch Name: CHCG OAKLAND DS0 Switch Type: EWSD LATA: Chicago IL METRO (358) Tandem: CHCGILST55T 🔧 Explore Switch(CLLI: CHCGILOKDS0))
773-549	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN04	CHCGILLWDS1	00/00/0000	Prefix Type: RBOC Switch Name: CHCG LAKEVIEW DS1 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILNE50T 🔧 Explore Switch(CLLI: CHCGILLWDS1))
773-553	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN06	CHCGILLADS0	00/00/0000	Prefix Type: RBOC Switch Name: CHCG LAFAYETTE DS0 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILST55T 🔧 Explore Switch(CLLI: CHCGILLADS0))
773-553 is split into 1,000-number blocks - detail below
773-553-1XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN06	CHCGILLADS0	N/A	Prefix Type: RBOC Switch Name: CHCG LAFAYETTE DS0 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILST55T 🔧 Explore Switch(CLLI: CHCGILLADS0))
773-553-2XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN06	CHCGILLADS0	N/A	Prefix Type: RBOC Switch Name: CHCG LAFAYETTE DS0 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILST55T 🔧 Explore Switch(CLLI: CHCGILLADS0))
773-553-3XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN06	CHCGILLADS0	N/A	Prefix Type: RBOC Switch Name: CHCG LAFAYETTE DS0 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILST55T 🔧 Explore Switch(CLLI: CHCGILLADS0))
773-553-4XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN06	CHCGILLADS0	N/A	Prefix Type: RBOC Switch Name: CHCG LAFAYETTE DS0 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILST55T 🔧 Explore Switch(CLLI: CHCGILLADS0))
773-553-5XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN06	CHCGILLADS0	N/A	Prefix Type: RBOC Switch Name: CHCG LAFAYETTE DS0 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILST55T 🔧 Explore Switch(CLLI: CHCGILLADS0))
773-553-6XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN06	CHCGILLADS0	N/A	Prefix Type: RBOC Switch Name: CHCG LAFAYETTE DS0 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILST55T 🔧 Explore Switch(CLLI: CHCGILLADS0))
773-553-7XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN06	CHCGILLADS0	N/A	Prefix Type: RBOC Switch Name: CHCG LAFAYETTE DS0 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILST55T 🔧 Explore Switch(CLLI: CHCGILLADS0))
773-553-8XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN06	CHCGILLADS0	N/A	Prefix Type: RBOC Switch Name: CHCG LAFAYETTE DS0 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILST55T 🔧 Explore Switch(CLLI: CHCGILLADS0))
773-557 is split into 1,000-number blocks - detail below
773-557-4XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN03	PRRGILXLDS0	05/24/2000	Prefix Type: RBOC Switch Name: PARK RIDGE DS0 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: LBRDILLM20T 🔧 Explore Switch(CLLI: PRRGILXLDS0))
773-561	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN02	CHCGILEDDS0	00/00/0000	Prefix Type: RBOC Switch Name: EDGEWATER DS0 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILNE50T 🔧 Explore Switch(CLLI: CHCGILEDDS0))
773-568	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN10	CHCGILPUDS0	00/00/0000	Prefix Type: RBOC Switch Name: CHCG PULLMAN DS0 Switch Type: EWSD LATA: Chicago IL METRO (358) Tandem: CHCGILST55T 🔧 Explore Switch(CLLI: CHCGILPUDS0))
773-569	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN03	EGVGILEGDS1	00/00/0000	Prefix Type: RBOC Switch Name: ELK GROVE EG DS1 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: NCHCILNC20T 🔧 Explore Switch(CLLI: EGVGILEGDS1))
773-579	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN06	CHCGILLADS0	00/00/0000	Prefix Type: RBOC Switch Name: CHCG LAFAYETTE DS0 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILST55T 🔧 Explore Switch(CLLI: CHCGILLADS0))
773-581	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN08	CHCGILPMDS0	00/00/0000	Prefix Type: RBOC Switch Name: CHCG PORTSMOUTH Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILWB55T 🔧 Explore Switch(CLLI: CHCGILPMDS0))
773-582	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN08	CHCGILPMDS0	00/00/0000	Prefix Type: RBOC Switch Name: CHCG PORTSMOUTH Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILWB55T 🔧 Explore Switch(CLLI: CHCGILPMDS0))
773-583	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN02	CHCGILIRDS0	00/00/0000	Prefix Type: RBOC Switch Name: CHCG IRVING Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILNE20T 🔧 Explore Switch(CLLI: CHCGILIRDS0))
773-585	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN08	CHCGILPMDS0	00/00/0000	Prefix Type: RBOC Switch Name: CHCG PORTSMOUTH Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILWB55T 🔧 Explore Switch(CLLI: CHCGILPMDS0))
773-586	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN08	SMMTILSMDS0	00/00/0000	Prefix Type: RBOC Switch Name: SUMMIT Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: JOLTILJO20T 🔧 Explore Switch(CLLI: SMMTILSMDS0))
773-588	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN02	CHCGILIRDS0	00/00/0000	Prefix Type: RBOC Switch Name: CHCG IRVING Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILNE20T 🔧 Explore Switch(CLLI: CHCGILIRDS0))
773-589	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN05	RVGVILRGDS0	00/00/0000	Prefix Type: RBOC Switch Name: RIVER GROVE Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: LBRDILLM20T 🔧 Explore Switch(CLLI: RVGVILRGDS0))
773-589 is split into 1,000-number blocks - detail below
773-589-0XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN05	RVGVILRGDS0	N/A	Prefix Type: RBOC Switch Name: RIVER GROVE Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: LBRDILLM20T 🔧 Explore Switch(CLLI: RVGVILRGDS0))
773-589-1XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN05	RVGVILRGDS0	N/A	Prefix Type: RBOC Switch Name: RIVER GROVE Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: LBRDILLM20T 🔧 Explore Switch(CLLI: RVGVILRGDS0))
773-589-2XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN05	RVGVILRGDS0	N/A	Prefix Type: RBOC Switch Name: RIVER GROVE Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: LBRDILLM20T 🔧 Explore Switch(CLLI: RVGVILRGDS0))
773-589-3XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN05	RVGVILRGDS0	N/A	Prefix Type: RBOC Switch Name: RIVER GROVE Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: LBRDILLM20T 🔧 Explore Switch(CLLI: RVGVILRGDS0))
773-589-5XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN05	RVGVILRGDS0	N/A	Prefix Type: RBOC Switch Name: RIVER GROVE Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: LBRDILLM20T 🔧 Explore Switch(CLLI: RVGVILRGDS0))
773-589-6XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN05	RVGVILRGDS0	N/A	Prefix Type: RBOC Switch Name: RIVER GROVE Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: LBRDILLM20T 🔧 Explore Switch(CLLI: RVGVILRGDS0))
773-589-7XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN05	RVGVILRGDS0	N/A	Prefix Type: RBOC Switch Name: RIVER GROVE Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: LBRDILLM20T 🔧 Explore Switch(CLLI: RVGVILRGDS0))
773-589-8XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN05	RVGVILRGDS0	N/A	Prefix Type: RBOC Switch Name: RIVER GROVE Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: LBRDILLM20T 🔧 Explore Switch(CLLI: RVGVILRGDS0))
773-589-9XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN05	RVGVILRGDS0	N/A	Prefix Type: RBOC Switch Name: RIVER GROVE Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: LBRDILLM20T 🔧 Explore Switch(CLLI: RVGVILRGDS0))
773-591	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN01	CHCGILWB55T	00/00/0000	Prefix Type: RBOC Switch Name: CHCZ 1 Switch Type: N/A LATA: Chicago IL METRO (358) Tandem: N/A 🔧 Explore Switch(CLLI: CHCGILWB55T))
773-594	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN03	CHCGILNEDS0	00/00/0000	Prefix Type: RBOC Switch Name: CHCG NEWCASTLE Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILNE50T 🔧 Explore Switch(CLLI: CHCGILNEDS0))
773-601	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN11	CHCGILOHDS0	00/00/0000	Prefix Type: RBOC Switch Name: CHCG OHARE Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILWB55T 🔧 Explore Switch(CLLI: CHCGILOHDS0))
773-602	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN07	CHCGILSTDS1	00/00/0000	Prefix Type: RBOC Switch Name: CHCG STEWART DS1 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILSTDS1))
773-602 is split into 1,000-number blocks - detail below
773-602-0XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN07	CHCGILSTDS1	N/A	Prefix Type: RBOC Switch Name: CHCG STEWART DS1 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILSTDS1))
773-602-1XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN07	CHCGILSTDS1	N/A	Prefix Type: RBOC Switch Name: CHCG STEWART DS1 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILSTDS1))
773-602-2XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN07	CHCGILSTDS1	N/A	Prefix Type: RBOC Switch Name: CHCG STEWART DS1 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILSTDS1))
773-602-3XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN07	CHCGILSTDS1	N/A	Prefix Type: RBOC Switch Name: CHCG STEWART DS1 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILSTDS1))
773-602-4XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN07	CHCGILSTDS1	N/A	Prefix Type: RBOC Switch Name: CHCG STEWART DS1 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILSTDS1))
773-602-5XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN07	CHCGILSTDS1	N/A	Prefix Type: RBOC Switch Name: CHCG STEWART DS1 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILSTDS1))
773-602-7XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN07	CHCGILSTDS1	N/A	Prefix Type: RBOC Switch Name: CHCG STEWART DS1 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILSTDS1))
773-602-8XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN07	CHCGILSTDS1	N/A	Prefix Type: RBOC Switch Name: CHCG STEWART DS1 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILSTDS1))
773-602-9XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN07	CHCGILSTDS1	N/A	Prefix Type: RBOC Switch Name: CHCG STEWART DS1 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILSTDS1))
773-604	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN02	CHCGILIRDS0	00/00/0000	Prefix Type: RBOC Switch Name: CHCG IRVING Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILNE20T 🔧 Explore Switch(CLLI: CHCGILIRDS0))
773-622	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN05	CHCGILMEDS0	00/00/0000	Prefix Type: RBOC Switch Name: CHCG MERRIMAC Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILWB55T 🔧 Explore Switch(CLLI: CHCGILMEDS0))
773-624	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN07	CHCGILOKDS0	00/00/0000	Prefix Type: RBOC Switch Name: CHCG OAKLAND DS0 Switch Type: EWSD LATA: Chicago IL METRO (358) Tandem: CHCGILST55T 🔧 Explore Switch(CLLI: CHCGILOKDS0))
773-625	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN05	RVGVILRGDS0	00/00/0000	Prefix Type: RBOC Switch Name: RIVER GROVE Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: LBRDILLM20T 🔧 Explore Switch(CLLI: RVGVILRGDS0))
773-626	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN05	CHCGILAURP0	00/00/0000	Prefix Type: RBOC Switch Name: CHCZ 5 Switch Type: N/A LATA: Chicago IL METRO (358) Tandem: N/A 🔧 Explore Switch(CLLI: CHCGILAURP0))
773-631	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN03	CHCGILNEDS0	00/00/0000	Prefix Type: RBOC Switch Name: CHCG NEWCASTLE Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILNE50T 🔧 Explore Switch(CLLI: CHCGILNEDS0))
773-637	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN05	CHCGILMEDS0	00/00/0000	Prefix Type: RBOC Switch Name: CHCG MERRIMAC Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILWB55T 🔧 Explore Switch(CLLI: CHCGILMEDS0))
773-638	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN06	CHCGILKEDS0	00/00/0000	Prefix Type: RBOC Switch Name: CHCG KEDZIE DS0 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILWB55T 🔧 Explore Switch(CLLI: CHCGILKEDS0))
773-638 is split into 1,000-number blocks - detail below
773-638-0XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN06	CHCGILKEDS0	N/A	Prefix Type: RBOC Switch Name: CHCG KEDZIE DS0 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILWB55T 🔧 Explore Switch(CLLI: CHCGILKEDS0))
773-638-1XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN06	CHCGILKEDS0	N/A	Prefix Type: RBOC Switch Name: CHCG KEDZIE DS0 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILWB55T 🔧 Explore Switch(CLLI: CHCGILKEDS0))
773-638-2XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN06	CHCGILKEDS0	N/A	Prefix Type: RBOC Switch Name: CHCG KEDZIE DS0 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILWB55T 🔧 Explore Switch(CLLI: CHCGILKEDS0))
773-638-3XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN06	CHCGILKEDS0	N/A	Prefix Type: RBOC Switch Name: CHCG KEDZIE DS0 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILWB55T 🔧 Explore Switch(CLLI: CHCGILKEDS0))
773-638-5XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN06	CHCGILKEDS0	N/A	Prefix Type: RBOC Switch Name: CHCG KEDZIE DS0 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILWB55T 🔧 Explore Switch(CLLI: CHCGILKEDS0))
773-638-6XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN06	CHCGILKEDS0	N/A	Prefix Type: RBOC Switch Name: CHCG KEDZIE DS0 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILWB55T 🔧 Explore Switch(CLLI: CHCGILKEDS0))
773-638-8XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN06	CHCGILKEDS0	N/A	Prefix Type: RBOC Switch Name: CHCG KEDZIE DS0 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILWB55T 🔧 Explore Switch(CLLI: CHCGILKEDS0))
773-643	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN07	CHCGILDODS0	00/00/0000	Prefix Type: RBOC Switch Name: CHCG HYDE DOR Switch Type: EWSD LATA: Chicago IL METRO (358) Tandem: CHCGILST55T 🔧 Explore Switch(CLLI: CHCGILDODS0))
773-643 is split into 1,000-number blocks - detail below
773-643-0XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN07	CHCGILDODS0	N/A	Prefix Type: RBOC Switch Name: CHCG HYDE DOR Switch Type: EWSD LATA: Chicago IL METRO (358) Tandem: CHCGILST55T 🔧 Explore Switch(CLLI: CHCGILDODS0))
773-643-1XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN07	CHCGILDODS0	N/A	Prefix Type: RBOC Switch Name: CHCG HYDE DOR Switch Type: EWSD LATA: Chicago IL METRO (358) Tandem: CHCGILST55T 🔧 Explore Switch(CLLI: CHCGILDODS0))
773-643-2XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN07	CHCGILDODS0	N/A	Prefix Type: RBOC Switch Name: CHCG HYDE DOR Switch Type: EWSD LATA: Chicago IL METRO (358) Tandem: CHCGILST55T 🔧 Explore Switch(CLLI: CHCGILDODS0))
773-643-4XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN07	CHCGILDODS0	N/A	Prefix Type: RBOC Switch Name: CHCG HYDE DOR Switch Type: EWSD LATA: Chicago IL METRO (358) Tandem: CHCGILST55T 🔧 Explore Switch(CLLI: CHCGILDODS0))
773-643-6XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN07	CHCGILDODS0	N/A	Prefix Type: RBOC Switch Name: CHCG HYDE DOR Switch Type: EWSD LATA: Chicago IL METRO (358) Tandem: CHCGILST55T 🔧 Explore Switch(CLLI: CHCGILDODS0))
773-643-7XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN07	CHCGILDODS0	N/A	Prefix Type: RBOC Switch Name: CHCG HYDE DOR Switch Type: EWSD LATA: Chicago IL METRO (358) Tandem: CHCGILST55T 🔧 Explore Switch(CLLI: CHCGILDODS0))
773-643-8XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN07	CHCGILDODS0	N/A	Prefix Type: RBOC Switch Name: CHCG HYDE DOR Switch Type: EWSD LATA: Chicago IL METRO (358) Tandem: CHCGILST55T 🔧 Explore Switch(CLLI: CHCGILDODS0))
773-643-9XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN07	CHCGILDODS0	N/A	Prefix Type: RBOC Switch Name: CHCG HYDE DOR Switch Type: EWSD LATA: Chicago IL METRO (358) Tandem: CHCGILST55T 🔧 Explore Switch(CLLI: CHCGILDODS0))
773-645	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN04	CHCGILHBDS1	00/00/0000	Prefix Type: RBOC Switch Name: CHCG HUMBOLDT DS1 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILWB55T 🔧 Explore Switch(CLLI: CHCGILHBDS1))
773-645 is split into 1,000-number blocks - detail below
773-645-2XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN04	CHCGILHBDS1	N/A	Prefix Type: RBOC Switch Name: CHCG HUMBOLDT DS1 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILWB55T 🔧 Explore Switch(CLLI: CHCGILHBDS1))
773-645-5XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN04	CHCGILHBDS1	N/A	Prefix Type: RBOC Switch Name: CHCG HUMBOLDT DS1 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILWB55T 🔧 Explore Switch(CLLI: CHCGILHBDS1))
773-645-7XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN04	CHCGILHBDS1	N/A	Prefix Type: RBOC Switch Name: CHCG HUMBOLDT DS1 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILWB55T 🔧 Explore Switch(CLLI: CHCGILHBDS1))
773-645-8XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN04	CHCGILHBDS1	N/A	Prefix Type: RBOC Switch Name: CHCG HUMBOLDT DS1 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILWB55T 🔧 Explore Switch(CLLI: CHCGILHBDS1))
773-646	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN09	CHCGILMHRS0	00/00/0000	Prefix Type: RBOC Switch Name: CHCG MITCHELL Switch Type: N/A LATA: Chicago IL METRO (358) Tandem: CHCGILST55T 🔧 Explore Switch(CLLI: CHCGILMHRS0))
773-648 is split into 1,000-number blocks - detail below
773-648-4XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN06	CHCGILLADS0	05/24/2000	Prefix Type: RBOC Switch Name: CHCG LAFAYETTE DS0 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILST55T 🔧 Explore Switch(CLLI: CHCGILLADS0))
773-650	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN06	CHCGILLADS0	00/00/0000	Prefix Type: RBOC Switch Name: CHCG LAFAYETTE DS0 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILST55T 🔧 Explore Switch(CLLI: CHCGILLADS0))
773-651	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN07	CHCGILSTDS1	00/00/0000	Prefix Type: RBOC Switch Name: CHCG STEWART DS1 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILSTDS1))
773-660	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN10	CHCGILPUDS0	00/00/0000	Prefix Type: RBOC Switch Name: CHCG PULLMAN DS0 Switch Type: EWSD LATA: Chicago IL METRO (358) Tandem: CHCGILST55T 🔧 Explore Switch(CLLI: CHCGILPUDS0))
773-665	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN04	CHCGILLWDS0	00/00/0000	Prefix Type: RBOC Switch Name: CHCG LAKEVIEW DS0 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILWB55T 🔧 Explore Switch(CLLI: CHCGILLWDS0))
773-667	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN07	CHCGILDODS0	00/00/0000	Prefix Type: RBOC Switch Name: CHCG HYDE DOR Switch Type: EWSD LATA: Chicago IL METRO (358) Tandem: CHCGILST55T 🔧 Explore Switch(CLLI: CHCGILDODS0))
773-667 is split into 1,000-number blocks - detail below
773-667-0XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN07	CHCGILDODS0	N/A	Prefix Type: RBOC Switch Name: CHCG HYDE DOR Switch Type: EWSD LATA: Chicago IL METRO (358) Tandem: CHCGILST55T 🔧 Explore Switch(CLLI: CHCGILDODS0))
773-667-1XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN07	CHCGILDODS0	N/A	Prefix Type: RBOC Switch Name: CHCG HYDE DOR Switch Type: EWSD LATA: Chicago IL METRO (358) Tandem: CHCGILST55T 🔧 Explore Switch(CLLI: CHCGILDODS0))
773-667-2XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN07	CHCGILDODS0	N/A	Prefix Type: RBOC Switch Name: CHCG HYDE DOR Switch Type: EWSD LATA: Chicago IL METRO (358) Tandem: CHCGILST55T 🔧 Explore Switch(CLLI: CHCGILDODS0))
773-667-4XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN07	CHCGILDODS0	N/A	Prefix Type: RBOC Switch Name: CHCG HYDE DOR Switch Type: EWSD LATA: Chicago IL METRO (358) Tandem: CHCGILST55T 🔧 Explore Switch(CLLI: CHCGILDODS0))
773-667-5XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN07	CHCGILDODS0	N/A	Prefix Type: RBOC Switch Name: CHCG HYDE DOR Switch Type: EWSD LATA: Chicago IL METRO (358) Tandem: CHCGILST55T 🔧 Explore Switch(CLLI: CHCGILDODS0))
773-667-6XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN07	CHCGILDODS0	N/A	Prefix Type: RBOC Switch Name: CHCG HYDE DOR Switch Type: EWSD LATA: Chicago IL METRO (358) Tandem: CHCGILST55T 🔧 Explore Switch(CLLI: CHCGILDODS0))
773-667-7XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN07	CHCGILDODS0	N/A	Prefix Type: RBOC Switch Name: CHCG HYDE DOR Switch Type: EWSD LATA: Chicago IL METRO (358) Tandem: CHCGILST55T 🔧 Explore Switch(CLLI: CHCGILDODS0))
773-667-8XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN07	CHCGILDODS0	N/A	Prefix Type: RBOC Switch Name: CHCG HYDE DOR Switch Type: EWSD LATA: Chicago IL METRO (358) Tandem: CHCGILST55T 🔧 Explore Switch(CLLI: CHCGILDODS0))
773-667-9XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN07	CHCGILDODS0	N/A	Prefix Type: RBOC Switch Name: CHCG HYDE DOR Switch Type: EWSD LATA: Chicago IL METRO (358) Tandem: CHCGILST55T 🔧 Explore Switch(CLLI: CHCGILDODS0))
773-674	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN06	CHCGILLADS0	05/15/2008	Prefix Type: RBOC Switch Name: CHCG LAFAYETTE DS0 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILST55T 🔧 Explore Switch(CLLI: CHCGILLADS0))
773-674 is split into 1,000-number blocks - detail below
773-674-0XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN06	CHCGILLADS0	05/19/2008	Prefix Type: RBOC Switch Name: CHCG LAFAYETTE DS0 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILST55T 🔧 Explore Switch(CLLI: CHCGILLADS0))
773-674-1XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN06	CHCGILLADS0	05/19/2008	Prefix Type: RBOC Switch Name: CHCG LAFAYETTE DS0 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILST55T 🔧 Explore Switch(CLLI: CHCGILLADS0))
773-674-2XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN06	CHCGILLADS0	05/19/2008	Prefix Type: RBOC Switch Name: CHCG LAFAYETTE DS0 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILST55T 🔧 Explore Switch(CLLI: CHCGILLADS0))
773-674-3XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN06	CHCGILLADS0	05/19/2008	Prefix Type: RBOC Switch Name: CHCG LAFAYETTE DS0 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILST55T 🔧 Explore Switch(CLLI: CHCGILLADS0))
773-674-4XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN06	CHCGILLADS0	05/19/2008	Prefix Type: RBOC Switch Name: CHCG LAFAYETTE DS0 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILST55T 🔧 Explore Switch(CLLI: CHCGILLADS0))
773-674-5XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN06	CHCGILLADS0	05/19/2008	Prefix Type: RBOC Switch Name: CHCG LAFAYETTE DS0 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILST55T 🔧 Explore Switch(CLLI: CHCGILLADS0))
773-674-6XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN06	CHCGILLADS0	05/19/2008	Prefix Type: RBOC Switch Name: CHCG LAFAYETTE DS0 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILST55T 🔧 Explore Switch(CLLI: CHCGILLADS0))
773-674-7XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN06	CHCGILLADS0	05/19/2008	Prefix Type: RBOC Switch Name: CHCG LAFAYETTE DS0 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILST55T 🔧 Explore Switch(CLLI: CHCGILLADS0))
773-674-8XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN06	CHCGILLADS0	05/19/2008	Prefix Type: RBOC Switch Name: CHCG LAFAYETTE DS0 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILST55T 🔧 Explore Switch(CLLI: CHCGILLADS0))
773-674-9XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN06	CHCGILLADS0	05/19/2008	Prefix Type: RBOC Switch Name: CHCG LAFAYETTE DS0 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILST55T 🔧 Explore Switch(CLLI: CHCGILLADS0))
773-684	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN07	CHCGILDODS0	00/00/0000	Prefix Type: RBOC Switch Name: CHCG HYDE DOR Switch Type: EWSD LATA: Chicago IL METRO (358) Tandem: CHCGILST55T 🔧 Explore Switch(CLLI: CHCGILDODS0))
773-684 is split into 1,000-number blocks - detail below
773-684-0XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN07	CHCGILDODS0	N/A	Prefix Type: RBOC Switch Name: CHCG HYDE DOR Switch Type: EWSD LATA: Chicago IL METRO (358) Tandem: CHCGILST55T 🔧 Explore Switch(CLLI: CHCGILDODS0))
773-684-1XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN07	CHCGILDODS0	N/A	Prefix Type: RBOC Switch Name: CHCG HYDE DOR Switch Type: EWSD LATA: Chicago IL METRO (358) Tandem: CHCGILST55T 🔧 Explore Switch(CLLI: CHCGILDODS0))
773-684-2XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN07	CHCGILDODS0	N/A	Prefix Type: RBOC Switch Name: CHCG HYDE DOR Switch Type: EWSD LATA: Chicago IL METRO (358) Tandem: CHCGILST55T 🔧 Explore Switch(CLLI: CHCGILDODS0))
773-684-3XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN07	CHCGILDODS0	N/A	Prefix Type: RBOC Switch Name: CHCG HYDE DOR Switch Type: EWSD LATA: Chicago IL METRO (358) Tandem: CHCGILST55T 🔧 Explore Switch(CLLI: CHCGILDODS0))
773-684-5XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN07	CHCGILDODS0	N/A	Prefix Type: RBOC Switch Name: CHCG HYDE DOR Switch Type: EWSD LATA: Chicago IL METRO (358) Tandem: CHCGILST55T 🔧 Explore Switch(CLLI: CHCGILDODS0))
773-684-8XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN07	CHCGILDODS0	N/A	Prefix Type: RBOC Switch Name: CHCG HYDE DOR Switch Type: EWSD LATA: Chicago IL METRO (358) Tandem: CHCGILST55T 🔧 Explore Switch(CLLI: CHCGILDODS0))
773-684-9XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN07	CHCGILDODS0	N/A	Prefix Type: RBOC Switch Name: CHCG HYDE DOR Switch Type: EWSD LATA: Chicago IL METRO (358) Tandem: CHCGILST55T 🔧 Explore Switch(CLLI: CHCGILDODS0))
773-685	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN03	CHCGILKIDS0	00/00/0000	Prefix Type: RBOC Switch Name: CHCG KILDARE DS0 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILNE20T 🔧 Explore Switch(CLLI: CHCGILKIDS0))
773-686	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN11	CHCGILOHDS0	00/00/0000	Prefix Type: RBOC Switch Name: CHCG OHARE Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILWB55T 🔧 Explore Switch(CLLI: CHCGILOHDS0))
773-693	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN03	PRRGILXLDS1	00/00/0000	Prefix Type: RBOC Switch Name: PARK RIDGE DS1 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: LBRDILLM20T 🔧 Explore Switch(CLLI: PRRGILXLDS1))
773-693 is split into 1,000-number blocks - detail below
773-693-0XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN03	PRRGILXLDS1	N/A	Prefix Type: RBOC Switch Name: PARK RIDGE DS1 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: LBRDILLM20T 🔧 Explore Switch(CLLI: PRRGILXLDS1))
773-693-1XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN03	PRRGILXLDS1	N/A	Prefix Type: RBOC Switch Name: PARK RIDGE DS1 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: LBRDILLM20T 🔧 Explore Switch(CLLI: PRRGILXLDS1))
773-693-3XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN03	PRRGILXLDS1	N/A	Prefix Type: RBOC Switch Name: PARK RIDGE DS1 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: LBRDILLM20T 🔧 Explore Switch(CLLI: PRRGILXLDS1))
773-693-4XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN03	PRRGILXLDS1	N/A	Prefix Type: RBOC Switch Name: PARK RIDGE DS1 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: LBRDILLM20T 🔧 Explore Switch(CLLI: PRRGILXLDS1))
773-693-6XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN03	PRRGILXLDS1	N/A	Prefix Type: RBOC Switch Name: PARK RIDGE DS1 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: LBRDILLM20T 🔧 Explore Switch(CLLI: PRRGILXLDS1))
773-693-7XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN03	PRRGILXLDS1	N/A	Prefix Type: RBOC Switch Name: PARK RIDGE DS1 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: LBRDILLM20T 🔧 Explore Switch(CLLI: PRRGILXLDS1))
773-693-8XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN03	PRRGILXLDS1	N/A	Prefix Type: RBOC Switch Name: PARK RIDGE DS1 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: LBRDILLM20T 🔧 Explore Switch(CLLI: PRRGILXLDS1))
773-693-9XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN03	PRRGILXLDS1	N/A	Prefix Type: RBOC Switch Name: PARK RIDGE DS1 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: LBRDILLM20T 🔧 Explore Switch(CLLI: PRRGILXLDS1))
773-694	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN11	DSPLILXLDS0	00/00/0000	Prefix Type: RBOC Switch Name: DES PLAINES DS0 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: LBRDILLM20T 🔧 Explore Switch(CLLI: DSPLILXLDS0))
773-694 is split into 1,000-number blocks - detail below
773-694-0XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN11	DSPLILXLDS0	N/A	Prefix Type: RBOC Switch Name: DES PLAINES DS0 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: LBRDILLM20T 🔧 Explore Switch(CLLI: DSPLILXLDS0))
773-694-6XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN11	DSPLILXLDS0	N/A	Prefix Type: RBOC Switch Name: DES PLAINES DS0 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: LBRDILLM20T 🔧 Explore Switch(CLLI: DSPLILXLDS0))
773-695	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN03	PRRGILXLDS1	00/00/0000	Prefix Type: RBOC Switch Name: PARK RIDGE DS1 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: LBRDILLM20T 🔧 Explore Switch(CLLI: PRRGILXLDS1))
773-695 is split into 1,000-number blocks - detail below
773-695-0XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN03	PRRGILXLDS1	N/A	Prefix Type: RBOC Switch Name: PARK RIDGE DS1 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: LBRDILLM20T 🔧 Explore Switch(CLLI: PRRGILXLDS1))
773-695-1XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN03	PRRGILXLDS1	N/A	Prefix Type: RBOC Switch Name: PARK RIDGE DS1 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: LBRDILLM20T 🔧 Explore Switch(CLLI: PRRGILXLDS1))
773-695-3XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN03	PRRGILXLDS1	N/A	Prefix Type: RBOC Switch Name: PARK RIDGE DS1 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: LBRDILLM20T 🔧 Explore Switch(CLLI: PRRGILXLDS1))
773-695-4XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN03	PRRGILXLDS1	N/A	Prefix Type: RBOC Switch Name: PARK RIDGE DS1 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: LBRDILLM20T 🔧 Explore Switch(CLLI: PRRGILXLDS1))
773-695-5XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN03	PRRGILXLDS1	N/A	Prefix Type: RBOC Switch Name: PARK RIDGE DS1 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: LBRDILLM20T 🔧 Explore Switch(CLLI: PRRGILXLDS1))
773-695-6XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN03	PRRGILXLDS1	N/A	Prefix Type: RBOC Switch Name: PARK RIDGE DS1 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: LBRDILLM20T 🔧 Explore Switch(CLLI: PRRGILXLDS1))
773-695-7XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN03	PRRGILXLDS1	N/A	Prefix Type: RBOC Switch Name: PARK RIDGE DS1 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: LBRDILLM20T 🔧 Explore Switch(CLLI: PRRGILXLDS1))
773-697 is split into 1,000-number blocks - detail below
773-697-2XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN04	CHCGILLWDS0	06/20/2000	Prefix Type: RBOC Switch Name: CHCG LAKEVIEW DS0 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILWB55T 🔧 Explore Switch(CLLI: CHCGILLWDS0))
773-697-6XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN04	CHCGILLWDS0	06/20/2000	Prefix Type: RBOC Switch Name: CHCG LAKEVIEW DS0 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILWB55T 🔧 Explore Switch(CLLI: CHCGILLWDS0))
773-702	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN07	CHCGILDODS0	00/00/0000	Prefix Type: RBOC Switch Name: CHCG HYDE DOR Switch Type: EWSD LATA: Chicago IL METRO (358) Tandem: CHCGILST55T 🔧 Explore Switch(CLLI: CHCGILDODS0))
773-714	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN03	PRRGILXLDS1	00/00/0000	Prefix Type: RBOC Switch Name: PARK RIDGE DS1 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: LBRDILLM20T 🔧 Explore Switch(CLLI: PRRGILXLDS1))
773-721	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN09	CHCGILSCDS0	00/00/0000	Prefix Type: RBOC Switch Name: CHCG SOU CHCG DS0 Switch Type: EWSD LATA: Chicago IL METRO (358) Tandem: CHCGILST55T 🔧 Explore Switch(CLLI: CHCGILSCDS0))
773-722	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN06	CHCGILKEDS0	00/00/0000	Prefix Type: RBOC Switch Name: CHCG KEDZIE DS0 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILWB55T 🔧 Explore Switch(CLLI: CHCGILKEDS0))
773-723	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN07	CHCGILSTDS1	00/00/0000	Prefix Type: RBOC Switch Name: CHCG STEWART DS1 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILSTDS1))
773-725	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN03	CHCGILKIDS0	00/00/0000	Prefix Type: RBOC Switch Name: CHCG KILDARE DS0 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILNE20T 🔧 Explore Switch(CLLI: CHCGILKIDS0))
773-728	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN02	CHCGILEDDS0	00/00/0000	Prefix Type: RBOC Switch Name: EDGEWATER DS0 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILNE50T 🔧 Explore Switch(CLLI: CHCGILEDDS0))
773-730	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN02	CHCGILIRDS0	00/00/0000	Prefix Type: RBOC Switch Name: CHCG IRVING Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILNE20T 🔧 Explore Switch(CLLI: CHCGILIRDS0))
773-731	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN09	CHCGILSCDS0	00/00/0000	Prefix Type: RBOC Switch Name: CHCG SOU CHCG DS0 Switch Type: EWSD LATA: Chicago IL METRO (358) Tandem: CHCGILST55T 🔧 Explore Switch(CLLI: CHCGILSCDS0))
773-734	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN09	CHCGILSCDS0	00/00/0000	Prefix Type: RBOC Switch Name: CHCG SOU CHCG DS0 Switch Type: EWSD LATA: Chicago IL METRO (358) Tandem: CHCGILST55T 🔧 Explore Switch(CLLI: CHCGILSCDS0))
773-735	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN08	CHCGILPMDS0	00/00/0000	Prefix Type: RBOC Switch Name: CHCG PORTSMOUTH Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILWB55T 🔧 Explore Switch(CLLI: CHCGILPMDS0))
773-736	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN03	CHCGILKIDS0	00/00/0000	Prefix Type: RBOC Switch Name: CHCG KILDARE DS0 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILNE20T 🔧 Explore Switch(CLLI: CHCGILKIDS0))
773-737	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN08	CHCGILPRDS0	00/00/0000	Prefix Type: RBOC Switch Name: CHCG PROSPECT Switch Type: EWSD LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILPRDS0))
773-741	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN11	DSPLILXLDS0	00/00/0000	Prefix Type: RBOC Switch Name: DES PLAINES DS0 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: LBRDILLM20T 🔧 Explore Switch(CLLI: DSPLILXLDS0))
773-741 is split into 1,000-number blocks - detail below
773-741-8XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN11	DSPLILXLDS0	N/A	Prefix Type: RBOC Switch Name: DES PLAINES DS0 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: LBRDILLM20T 🔧 Explore Switch(CLLI: DSPLILXLDS0))
773-743	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN02	CHCGILRPDS0	00/00/0000	Prefix Type: RBOC Switch Name: CHCG ROGERS PARK Switch Type: EWSD LATA: Chicago IL METRO (358) Tandem: CHCGILNE50T 🔧 Explore Switch(CLLI: CHCGILRPDS0))
773-745	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN05	CHCGILMEDS0	00/00/0000	Prefix Type: RBOC Switch Name: CHCG MERRIMAC Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILWB55T 🔧 Explore Switch(CLLI: CHCGILMEDS0))
773-752	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN07	CHCGILDODS0	00/00/0000	Prefix Type: RBOC Switch Name: CHCG HYDE DOR Switch Type: EWSD LATA: Chicago IL METRO (358) Tandem: CHCGILST55T 🔧 Explore Switch(CLLI: CHCGILDODS0))
773-753	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN07	CHCGILDODS0	00/00/0000	Prefix Type: RBOC Switch Name: CHCG HYDE DOR Switch Type: EWSD LATA: Chicago IL METRO (358) Tandem: CHCGILST55T 🔧 Explore Switch(CLLI: CHCGILDODS0))
773-755	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN04	CHCGILLWDS0	00/00/0000	Prefix Type: RBOC Switch Name: CHCG LAKEVIEW DS0 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILWB55T 🔧 Explore Switch(CLLI: CHCGILLWDS0))
773-761	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN02	CHCGILRPDS0	00/00/0000	Prefix Type: RBOC Switch Name: CHCG ROGERS PARK Switch Type: EWSD LATA: Chicago IL METRO (358) Tandem: CHCGILNE50T 🔧 Explore Switch(CLLI: CHCGILRPDS0))
773-762	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN06	CHCGILLDDS0	00/00/0000	Prefix Type: RBOC Switch Name: CHCG LAWNDALE Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILNE20T 🔧 Explore Switch(CLLI: CHCGILLDDS0))
773-762 is split into 1,000-number blocks - detail below
773-762-0XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN06	CHCGILLDDS0	N/A	Prefix Type: RBOC Switch Name: CHCG LAWNDALE Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILNE20T 🔧 Explore Switch(CLLI: CHCGILLDDS0))
773-762-1XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN06	CHCGILLDDS0	N/A	Prefix Type: RBOC Switch Name: CHCG LAWNDALE Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILNE20T 🔧 Explore Switch(CLLI: CHCGILLDDS0))
773-762-2XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN06	CHCGILLDDS0	N/A	Prefix Type: RBOC Switch Name: CHCG LAWNDALE Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILNE20T 🔧 Explore Switch(CLLI: CHCGILLDDS0))
773-762-3XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN06	CHCGILLDDS0	N/A	Prefix Type: RBOC Switch Name: CHCG LAWNDALE Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILNE20T 🔧 Explore Switch(CLLI: CHCGILLDDS0))
773-762-4XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN06	CHCGILLDDS0	N/A	Prefix Type: RBOC Switch Name: CHCG LAWNDALE Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILNE20T 🔧 Explore Switch(CLLI: CHCGILLDDS0))
773-762-5XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN06	CHCGILLDDS0	N/A	Prefix Type: RBOC Switch Name: CHCG LAWNDALE Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILNE20T 🔧 Explore Switch(CLLI: CHCGILLDDS0))
773-762-7XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN06	CHCGILLDDS0	N/A	Prefix Type: RBOC Switch Name: CHCG LAWNDALE Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILNE20T 🔧 Explore Switch(CLLI: CHCGILLDDS0))
773-762-8XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN06	CHCGILLDDS0	N/A	Prefix Type: RBOC Switch Name: CHCG LAWNDALE Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILNE20T 🔧 Explore Switch(CLLI: CHCGILLDDS0))
773-763	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN03	CHCGILNEDS0	00/00/0000	Prefix Type: RBOC Switch Name: CHCG NEWCASTLE Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILNE50T 🔧 Explore Switch(CLLI: CHCGILNEDS0))
773-764	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN02	CHCGILRPDS0	00/00/0000	Prefix Type: RBOC Switch Name: CHCG ROGERS PARK Switch Type: EWSD LATA: Chicago IL METRO (358) Tandem: CHCGILNE50T 🔧 Explore Switch(CLLI: CHCGILRPDS0))
773-767	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN08	CHCGILPMDS0	00/00/0000	Prefix Type: RBOC Switch Name: CHCG PORTSMOUTH Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILWB55T 🔧 Explore Switch(CLLI: CHCGILPMDS0))
773-768	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN09	CHCGILSCDS0	00/00/0000	Prefix Type: RBOC Switch Name: CHCG SOU CHCG DS0 Switch Type: EWSD LATA: Chicago IL METRO (358) Tandem: CHCGILST55T 🔧 Explore Switch(CLLI: CHCGILSCDS0))
773-769	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN02	CHCGILEDDS0	00/00/0000	Prefix Type: RBOC Switch Name: EDGEWATER DS0 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILNE50T 🔧 Explore Switch(CLLI: CHCGILEDDS0))
773-769 is split into 1,000-number blocks - detail below
773-769-0XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN02	CHCGILEDDS0	N/A	Prefix Type: RBOC Switch Name: EDGEWATER DS0 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILNE50T 🔧 Explore Switch(CLLI: CHCGILEDDS0))
773-769-1XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN02	CHCGILEDDS0	N/A	Prefix Type: RBOC Switch Name: EDGEWATER DS0 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILNE50T 🔧 Explore Switch(CLLI: CHCGILEDDS0))
773-769-2XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN02	CHCGILEDDS0	N/A	Prefix Type: RBOC Switch Name: EDGEWATER DS0 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILNE50T 🔧 Explore Switch(CLLI: CHCGILEDDS0))
773-769-3XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN02	CHCGILEDDS0	N/A	Prefix Type: RBOC Switch Name: EDGEWATER DS0 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILNE50T 🔧 Explore Switch(CLLI: CHCGILEDDS0))
773-769-4XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN02	CHCGILEDDS0	N/A	Prefix Type: RBOC Switch Name: EDGEWATER DS0 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILNE50T 🔧 Explore Switch(CLLI: CHCGILEDDS0))
773-769-5XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN02	CHCGILEDDS0	N/A	Prefix Type: RBOC Switch Name: EDGEWATER DS0 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILNE50T 🔧 Explore Switch(CLLI: CHCGILEDDS0))
773-769-6XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN02	CHCGILEDDS0	N/A	Prefix Type: RBOC Switch Name: EDGEWATER DS0 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILNE50T 🔧 Explore Switch(CLLI: CHCGILEDDS0))
773-769-8XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN02	CHCGILEDDS0	N/A	Prefix Type: RBOC Switch Name: EDGEWATER DS0 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILNE50T 🔧 Explore Switch(CLLI: CHCGILEDDS0))
773-769-9XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN02	CHCGILEDDS0	N/A	Prefix Type: RBOC Switch Name: EDGEWATER DS0 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILNE50T 🔧 Explore Switch(CLLI: CHCGILEDDS0))
773-770 is split into 1,000-number blocks - detail below
773-770-7XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN04	CHCGILLWDS0	01/30/2002	Prefix Type: RBOC Switch Name: CHCG LAKEVIEW DS0 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILWB55T 🔧 Explore Switch(CLLI: CHCGILLWDS0))
773-772	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN04	CHCGILHBDS1	00/00/0000	Prefix Type: RBOC Switch Name: CHCG HUMBOLDT DS1 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILWB55T 🔧 Explore Switch(CLLI: CHCGILHBDS1))
773-774	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN03	CHCGILNEDS0	00/00/0000	Prefix Type: RBOC Switch Name: CHCG NEWCASTLE Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILNE50T 🔧 Explore Switch(CLLI: CHCGILNEDS0))
773-775	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN03	CHCGILNEDS0	00/00/0000	Prefix Type: RBOC Switch Name: CHCG NEWCASTLE Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILNE50T 🔧 Explore Switch(CLLI: CHCGILNEDS0))
773-776	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN08	CHCGILPRDS0	00/00/0000	Prefix Type: RBOC Switch Name: CHCG PROSPECT Switch Type: EWSD LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILPRDS0))
773-777	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN03	CHCGILKIDS0	00/00/0000	Prefix Type: RBOC Switch Name: CHCG KILDARE DS0 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILNE20T 🔧 Explore Switch(CLLI: CHCGILKIDS0))
773-778	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN08	CHCGILPRDS0	00/00/0000	Prefix Type: RBOC Switch Name: CHCG PROSPECT Switch Type: EWSD LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILPRDS0))
773-779	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN10	CHCGILBEDS0	00/00/0000	Prefix Type: RBOC Switch Name: CHCG BEVERLY DS0 Switch Type: EWSD LATA: Chicago IL METRO (358) Tandem: CHCGILST55T 🔧 Explore Switch(CLLI: CHCGILBEDS0))
773-782	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN04	CHCGILHBDS1	00/00/0000	Prefix Type: RBOC Switch Name: CHCG HUMBOLDT DS1 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILWB55T 🔧 Explore Switch(CLLI: CHCGILHBDS1))
773-782 is split into 1,000-number blocks - detail below
773-782-2XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN04	CHCGILHBDS1	N/A	Prefix Type: RBOC Switch Name: CHCG HUMBOLDT DS1 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILWB55T 🔧 Explore Switch(CLLI: CHCGILHBDS1))
773-782-3XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN04	CHCGILHBDS1	N/A	Prefix Type: RBOC Switch Name: CHCG HUMBOLDT DS1 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILWB55T 🔧 Explore Switch(CLLI: CHCGILHBDS1))
773-782-4XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN04	CHCGILHBDS1	N/A	Prefix Type: RBOC Switch Name: CHCG HUMBOLDT DS1 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILWB55T 🔧 Explore Switch(CLLI: CHCGILHBDS1))
773-782-8XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN04	CHCGILHBDS1	N/A	Prefix Type: RBOC Switch Name: CHCG HUMBOLDT DS1 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILWB55T 🔧 Explore Switch(CLLI: CHCGILHBDS1))
773-783	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN07	CHCGILSTDS1	00/00/0000	Prefix Type: RBOC Switch Name: CHCG STEWART DS1 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILSTDS1))
773-784	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN02	CHCGILEDDS0	00/00/0000	Prefix Type: RBOC Switch Name: EDGEWATER DS0 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILNE50T 🔧 Explore Switch(CLLI: CHCGILEDDS0))
773-785	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN10	CHCGILPUDS0	00/00/0000	Prefix Type: RBOC Switch Name: CHCG PULLMAN DS0 Switch Type: EWSD LATA: Chicago IL METRO (358) Tandem: CHCGILST55T 🔧 Explore Switch(CLLI: CHCGILPUDS0))
773-788	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN08	SMMTILSMDS0	00/00/0000	Prefix Type: RBOC Switch Name: SUMMIT Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: JOLTILJO20T 🔧 Explore Switch(CLLI: SMMTILSMDS0))
773-788 is split into 1,000-number blocks - detail below
773-788-0XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN08	SMMTILSMDS0	N/A	Prefix Type: RBOC Switch Name: SUMMIT Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: JOLTILJO20T 🔧 Explore Switch(CLLI: SMMTILSMDS0))
773-788-1XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN08	SMMTILSMDS0	N/A	Prefix Type: RBOC Switch Name: SUMMIT Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: JOLTILJO20T 🔧 Explore Switch(CLLI: SMMTILSMDS0))
773-788-7XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN08	SMMTILSMDS0	N/A	Prefix Type: RBOC Switch Name: SUMMIT Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: JOLTILJO20T 🔧 Explore Switch(CLLI: SMMTILSMDS0))
773-788-9XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN08	SMMTILSMDS0	N/A	Prefix Type: RBOC Switch Name: SUMMIT Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: JOLTILJO20T 🔧 Explore Switch(CLLI: SMMTILSMDS0))
773-792	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN03	CHCGILNEDS0	00/00/0000	Prefix Type: RBOC Switch Name: CHCG NEWCASTLE Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILNE50T 🔧 Explore Switch(CLLI: CHCGILNEDS0))
773-794	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN03	CHCGILKIDS0	00/00/0000	Prefix Type: RBOC Switch Name: CHCG KILDARE DS0 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILNE20T 🔧 Explore Switch(CLLI: CHCGILKIDS0))
773-794 is split into 1,000-number blocks - detail below
773-794-0XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN03	CHCGILKIDS0	N/A	Prefix Type: RBOC Switch Name: CHCG KILDARE DS0 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILNE20T 🔧 Explore Switch(CLLI: CHCGILKIDS0))
773-794-1XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN03	CHCGILKIDS0	N/A	Prefix Type: RBOC Switch Name: CHCG KILDARE DS0 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILNE20T 🔧 Explore Switch(CLLI: CHCGILKIDS0))
773-794-3XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN03	CHCGILKIDS0	N/A	Prefix Type: RBOC Switch Name: CHCG KILDARE DS0 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILNE20T 🔧 Explore Switch(CLLI: CHCGILKIDS0))
773-794-4XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN03	CHCGILKIDS0	N/A	Prefix Type: RBOC Switch Name: CHCG KILDARE DS0 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILNE20T 🔧 Explore Switch(CLLI: CHCGILKIDS0))
773-794-5XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN03	CHCGILKIDS0	N/A	Prefix Type: RBOC Switch Name: CHCG KILDARE DS0 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILNE20T 🔧 Explore Switch(CLLI: CHCGILKIDS0))
773-794-6XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN03	CHCGILKIDS0	N/A	Prefix Type: RBOC Switch Name: CHCG KILDARE DS0 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILNE20T 🔧 Explore Switch(CLLI: CHCGILKIDS0))
773-794-7XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN03	CHCGILKIDS0	N/A	Prefix Type: RBOC Switch Name: CHCG KILDARE DS0 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILNE20T 🔧 Explore Switch(CLLI: CHCGILKIDS0))
773-794-8XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN03	CHCGILKIDS0	N/A	Prefix Type: RBOC Switch Name: CHCG KILDARE DS0 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILNE20T 🔧 Explore Switch(CLLI: CHCGILKIDS0))
773-794-9XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN03	CHCGILKIDS0	N/A	Prefix Type: RBOC Switch Name: CHCG KILDARE DS0 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILNE20T 🔧 Explore Switch(CLLI: CHCGILKIDS0))
773-795	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN07	CHCGILDODS0	00/00/0000	Prefix Type: RBOC Switch Name: CHCG HYDE DOR Switch Type: EWSD LATA: Chicago IL METRO (358) Tandem: CHCGILST55T 🔧 Explore Switch(CLLI: CHCGILDODS0))
773-801	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN06	CHCGILLADS0	05/19/2006	Prefix Type: RBOC Switch Name: CHCG LAFAYETTE DS0 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILST55T 🔧 Explore Switch(CLLI: CHCGILLADS0))
773-801 is split into 1,000-number blocks - detail below
773-801-2XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN06	CHCGILLADS0	05/22/2006	Prefix Type: RBOC Switch Name: CHCG LAFAYETTE DS0 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILST55T 🔧 Explore Switch(CLLI: CHCGILLADS0))
773-804	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN05	CHCGILMEDS0	00/00/0000	Prefix Type: RBOC Switch Name: CHCG MERRIMAC Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILWB55T 🔧 Explore Switch(CLLI: CHCGILMEDS0))
773-804 is split into 1,000-number blocks - detail below
773-804-0XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN05	CHCGILMEDS0	N/A	Prefix Type: RBOC Switch Name: CHCG MERRIMAC Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILWB55T 🔧 Explore Switch(CLLI: CHCGILMEDS0))
773-804-1XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN05	CHCGILMEDS0	N/A	Prefix Type: RBOC Switch Name: CHCG MERRIMAC Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILWB55T 🔧 Explore Switch(CLLI: CHCGILMEDS0))
773-804-2XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN05	CHCGILMEDS0	N/A	Prefix Type: RBOC Switch Name: CHCG MERRIMAC Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILWB55T 🔧 Explore Switch(CLLI: CHCGILMEDS0))
773-804-3XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN05	CHCGILMEDS0	N/A	Prefix Type: RBOC Switch Name: CHCG MERRIMAC Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILWB55T 🔧 Explore Switch(CLLI: CHCGILMEDS0))
773-804-4XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN05	CHCGILMEDS0	N/A	Prefix Type: RBOC Switch Name: CHCG MERRIMAC Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILWB55T 🔧 Explore Switch(CLLI: CHCGILMEDS0))
773-804-5XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN05	CHCGILMEDS0	N/A	Prefix Type: RBOC Switch Name: CHCG MERRIMAC Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILWB55T 🔧 Explore Switch(CLLI: CHCGILMEDS0))
773-804-6XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN05	CHCGILMEDS0	N/A	Prefix Type: RBOC Switch Name: CHCG MERRIMAC Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILWB55T 🔧 Explore Switch(CLLI: CHCGILMEDS0))
773-804-7XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN05	CHCGILMEDS0	N/A	Prefix Type: RBOC Switch Name: CHCG MERRIMAC Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILWB55T 🔧 Explore Switch(CLLI: CHCGILMEDS0))
773-804-9XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN05	CHCGILMEDS0	N/A	Prefix Type: RBOC Switch Name: CHCG MERRIMAC Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILWB55T 🔧 Explore Switch(CLLI: CHCGILMEDS0))
773-821	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN10	CHCGILPUDS0	00/00/0000	Prefix Type: RBOC Switch Name: CHCG PULLMAN DS0 Switch Type: EWSD LATA: Chicago IL METRO (358) Tandem: CHCGILST55T 🔧 Explore Switch(CLLI: CHCGILPUDS0))
773-825	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN11	DSPLILXLDS1	00/00/0000	Prefix Type: RBOC Switch Name: DES PLAINES DS1 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: LBRDILLM20T 🔧 Explore Switch(CLLI: DSPLILXLDS1))
773-825 is split into 1,000-number blocks - detail below
773-825-1XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN11	DSPLILXLDS1	N/A	Prefix Type: RBOC Switch Name: DES PLAINES DS1 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: LBRDILLM20T 🔧 Explore Switch(CLLI: DSPLILXLDS1))
773-825-4XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN11	DSPLILXLDS1	N/A	Prefix Type: RBOC Switch Name: DES PLAINES DS1 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: LBRDILLM20T 🔧 Explore Switch(CLLI: DSPLILXLDS1))
773-825-7XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN11	DSPLILXLDS1	N/A	Prefix Type: RBOC Switch Name: DES PLAINES DS1 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: LBRDILLM20T 🔧 Explore Switch(CLLI: DSPLILXLDS1))
773-826	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN06	CHCGILKEDS0	00/00/0000	Prefix Type: RBOC Switch Name: CHCG KEDZIE DS0 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILWB55T 🔧 Explore Switch(CLLI: CHCGILKEDS0))
773-832	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN04	CHCGILLWDS0	00/00/0000	Prefix Type: RBOC Switch Name: CHCG LAKEVIEW DS0 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILWB55T 🔧 Explore Switch(CLLI: CHCGILLWDS0))
773-832 is split into 1,000-number blocks - detail below
773-832-0XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN04	CHCGILLWDS0	N/A	Prefix Type: RBOC Switch Name: CHCG LAKEVIEW DS0 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILWB55T 🔧 Explore Switch(CLLI: CHCGILLWDS0))
773-832-1XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN04	CHCGILLWDS0	N/A	Prefix Type: RBOC Switch Name: CHCG LAKEVIEW DS0 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILWB55T 🔧 Explore Switch(CLLI: CHCGILLWDS0))
773-832-2XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN04	CHCGILLWDS0	N/A	Prefix Type: RBOC Switch Name: CHCG LAKEVIEW DS0 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILWB55T 🔧 Explore Switch(CLLI: CHCGILLWDS0))
773-832-3XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN04	CHCGILLWDS0	N/A	Prefix Type: RBOC Switch Name: CHCG LAKEVIEW DS0 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILWB55T 🔧 Explore Switch(CLLI: CHCGILLWDS0))
773-832-4XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN04	CHCGILLWDS0	N/A	Prefix Type: RBOC Switch Name: CHCG LAKEVIEW DS0 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILWB55T 🔧 Explore Switch(CLLI: CHCGILLWDS0))
773-832-6XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN04	CHCGILLWDS0	N/A	Prefix Type: RBOC Switch Name: CHCG LAKEVIEW DS0 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILWB55T 🔧 Explore Switch(CLLI: CHCGILLWDS0))
773-832-9XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN04	CHCGILLWDS0	N/A	Prefix Type: RBOC Switch Name: CHCG LAKEVIEW DS0 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILWB55T 🔧 Explore Switch(CLLI: CHCGILLWDS0))
773-834	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN07	CHCGILSTDS0	00/00/0000	Prefix Type: RBOC Switch Name: CHCG STEWART DS0 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILST55T 🔧 Explore Switch(CLLI: CHCGILSTDS0))
773-836	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN05	CHCGILMEDS0	00/00/0000	Prefix Type: RBOC Switch Name: CHCG MERRIMAC Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILWB55T 🔧 Explore Switch(CLLI: CHCGILMEDS0))
773-836 is split into 1,000-number blocks - detail below
773-836-1XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN05	CHCGILMEDS0	N/A	Prefix Type: RBOC Switch Name: CHCG MERRIMAC Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILWB55T 🔧 Explore Switch(CLLI: CHCGILMEDS0))
773-836-3XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN05	CHCGILMEDS0	N/A	Prefix Type: RBOC Switch Name: CHCG MERRIMAC Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILWB55T 🔧 Explore Switch(CLLI: CHCGILMEDS0))
773-836-5XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN05	CHCGILMEDS0	N/A	Prefix Type: RBOC Switch Name: CHCG MERRIMAC Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILWB55T 🔧 Explore Switch(CLLI: CHCGILMEDS0))
773-836-7XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN05	CHCGILMEDS0	N/A	Prefix Type: RBOC Switch Name: CHCG MERRIMAC Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILWB55T 🔧 Explore Switch(CLLI: CHCGILMEDS0))
773-836-8XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN05	CHCGILMEDS0	N/A	Prefix Type: RBOC Switch Name: CHCG MERRIMAC Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILWB55T 🔧 Explore Switch(CLLI: CHCGILMEDS0))
773-836-9XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN05	CHCGILMEDS0	N/A	Prefix Type: RBOC Switch Name: CHCG MERRIMAC Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILWB55T 🔧 Explore Switch(CLLI: CHCGILMEDS0))
773-838	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN08	CHCGILPMDS0	00/00/0000	Prefix Type: RBOC Switch Name: CHCG PORTSMOUTH Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILWB55T 🔧 Explore Switch(CLLI: CHCGILPMDS0))
773-843	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN06	CHCGILLADS0	00/00/0000	Prefix Type: RBOC Switch Name: CHCG LAFAYETTE DS0 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILST55T 🔧 Explore Switch(CLLI: CHCGILLADS0))
773-846	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN07	CHCGILSTCG0	00/00/0000	Prefix Type: RBOC Switch Name: N/A Switch Type: WECO 1AESS LATA: Chicago IL METRO (358) Tandem: N/A 🔧 Explore Switch(CLLI: CHCGILSTCG0))
773-847	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN06	CHCGILLADS0	00/00/0000	Prefix Type: RBOC Switch Name: CHCG LAFAYETTE DS0 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILST55T 🔧 Explore Switch(CLLI: CHCGILLADS0))
773-854	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN05	CHCGILAURP0	00/00/0000	Prefix Type: RBOC Switch Name: CHCZ 5 Switch Type: N/A LATA: Chicago IL METRO (358) Tandem: N/A 🔧 Explore Switch(CLLI: CHCGILAURP0))
773-854 is split into 1,000-number blocks - detail below
773-854-0XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN05	CHCGILAURP0	N/A	Prefix Type: RBOC Switch Name: CHCZ 5 Switch Type: N/A LATA: Chicago IL METRO (358) Tandem: N/A 🔧 Explore Switch(CLLI: CHCGILAURP0))
773-854-1XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN05	CHCGILAURP0	N/A	Prefix Type: RBOC Switch Name: CHCZ 5 Switch Type: N/A LATA: Chicago IL METRO (358) Tandem: N/A 🔧 Explore Switch(CLLI: CHCGILAURP0))
773-854-2XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN05	CHCGILAURP0	N/A	Prefix Type: RBOC Switch Name: CHCZ 5 Switch Type: N/A LATA: Chicago IL METRO (358) Tandem: N/A 🔧 Explore Switch(CLLI: CHCGILAURP0))
773-854-3XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN05	CHCGILAURP0	N/A	Prefix Type: RBOC Switch Name: CHCZ 5 Switch Type: N/A LATA: Chicago IL METRO (358) Tandem: N/A 🔧 Explore Switch(CLLI: CHCGILAURP0))
773-854-4XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN05	CHCGILAURP0	N/A	Prefix Type: RBOC Switch Name: CHCZ 5 Switch Type: N/A LATA: Chicago IL METRO (358) Tandem: N/A 🔧 Explore Switch(CLLI: CHCGILAURP0))
773-854-5XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN05	CHCGILAURP0	N/A	Prefix Type: RBOC Switch Name: CHCZ 5 Switch Type: N/A LATA: Chicago IL METRO (358) Tandem: N/A 🔧 Explore Switch(CLLI: CHCGILAURP0))
773-854-6XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN05	CHCGILAURP0	N/A	Prefix Type: RBOC Switch Name: CHCZ 5 Switch Type: N/A LATA: Chicago IL METRO (358) Tandem: N/A 🔧 Explore Switch(CLLI: CHCGILAURP0))
773-854-8XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN05	CHCGILAURP0	N/A	Prefix Type: RBOC Switch Name: CHCZ 5 Switch Type: N/A LATA: Chicago IL METRO (358) Tandem: N/A 🔧 Explore Switch(CLLI: CHCGILAURP0))
773-862	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN04	CHCGILHBDS1	00/00/0000	Prefix Type: RBOC Switch Name: CHCG HUMBOLDT DS1 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILWB55T 🔧 Explore Switch(CLLI: CHCGILHBDS1))
773-862 is split into 1,000-number blocks - detail below
773-862-1XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN04	CHCGILHBDS1	N/A	Prefix Type: RBOC Switch Name: CHCG HUMBOLDT DS1 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILWB55T 🔧 Explore Switch(CLLI: CHCGILHBDS1))
773-862-3XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN04	CHCGILHBDS1	N/A	Prefix Type: RBOC Switch Name: CHCG HUMBOLDT DS1 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILWB55T 🔧 Explore Switch(CLLI: CHCGILHBDS1))
773-862-4XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN04	CHCGILHBDS1	N/A	Prefix Type: RBOC Switch Name: CHCG HUMBOLDT DS1 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILWB55T 🔧 Explore Switch(CLLI: CHCGILHBDS1))
773-862-6XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN04	CHCGILHBDS1	N/A	Prefix Type: RBOC Switch Name: CHCG HUMBOLDT DS1 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILWB55T 🔧 Explore Switch(CLLI: CHCGILHBDS1))
773-862-9XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN04	CHCGILHBDS1	N/A	Prefix Type: RBOC Switch Name: CHCG HUMBOLDT DS1 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILWB55T 🔧 Explore Switch(CLLI: CHCGILHBDS1))
773-863	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN08	CHCGILPRDS0	00/00/0000	Prefix Type: RBOC Switch Name: CHCG PROSPECT Switch Type: EWSD LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILPRDS0))
773-863 is split into 1,000-number blocks - detail below
773-863-0XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN08	CHCGILPRDS0	N/A	Prefix Type: RBOC Switch Name: CHCG PROSPECT Switch Type: EWSD LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILPRDS0))
773-863-1XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN08	CHCGILPRDS0	N/A	Prefix Type: RBOC Switch Name: CHCG PROSPECT Switch Type: EWSD LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILPRDS0))
773-863-4XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN08	CHCGILPRDS0	N/A	Prefix Type: RBOC Switch Name: CHCG PROSPECT Switch Type: EWSD LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILPRDS0))
773-863-5XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN08	CHCGILPRDS0	N/A	Prefix Type: RBOC Switch Name: CHCG PROSPECT Switch Type: EWSD LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILPRDS0))
773-863-6XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN08	CHCGILPRDS0	N/A	Prefix Type: RBOC Switch Name: CHCG PROSPECT Switch Type: EWSD LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILPRDS0))
773-863-7XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN08	CHCGILPRDS0	N/A	Prefix Type: RBOC Switch Name: CHCG PROSPECT Switch Type: EWSD LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILPRDS0))
773-863-8XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN08	CHCGILPRDS0	N/A	Prefix Type: RBOC Switch Name: CHCG PROSPECT Switch Type: EWSD LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILPRDS0))
773-863-9XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN08	CHCGILPRDS0	N/A	Prefix Type: RBOC Switch Name: CHCG PROSPECT Switch Type: EWSD LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILPRDS0))
773-864	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN03	PRRGILXLDS0	00/00/0000	Prefix Type: RBOC Switch Name: PARK RIDGE DS0 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: LBRDILLM20T 🔧 Explore Switch(CLLI: PRRGILXLDS0))
773-864 is split into 1,000-number blocks - detail below
773-864-1XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN03	PRRGILXLDS0	N/A	Prefix Type: RBOC Switch Name: PARK RIDGE DS0 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: LBRDILLM20T 🔧 Explore Switch(CLLI: PRRGILXLDS0))
773-864-2XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN03	PRRGILXLDS0	N/A	Prefix Type: RBOC Switch Name: PARK RIDGE DS0 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: LBRDILLM20T 🔧 Explore Switch(CLLI: PRRGILXLDS0))
773-864-3XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN03	PRRGILXLDS0	N/A	Prefix Type: RBOC Switch Name: PARK RIDGE DS0 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: LBRDILLM20T 🔧 Explore Switch(CLLI: PRRGILXLDS0))
773-864-4XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN03	PRRGILXLDS0	N/A	Prefix Type: RBOC Switch Name: PARK RIDGE DS0 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: LBRDILLM20T 🔧 Explore Switch(CLLI: PRRGILXLDS0))
773-864-5XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN03	PRRGILXLDS0	N/A	Prefix Type: RBOC Switch Name: PARK RIDGE DS0 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: LBRDILLM20T 🔧 Explore Switch(CLLI: PRRGILXLDS0))
773-864-6XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN03	PRRGILXLDS0	N/A	Prefix Type: RBOC Switch Name: PARK RIDGE DS0 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: LBRDILLM20T 🔧 Explore Switch(CLLI: PRRGILXLDS0))
773-864-7XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN03	PRRGILXLDS0	N/A	Prefix Type: RBOC Switch Name: PARK RIDGE DS0 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: LBRDILLM20T 🔧 Explore Switch(CLLI: PRRGILXLDS0))
773-864-8XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN03	PRRGILXLDS0	N/A	Prefix Type: RBOC Switch Name: PARK RIDGE DS0 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: LBRDILLM20T 🔧 Explore Switch(CLLI: PRRGILXLDS0))
773-866	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN02	CHCGILIRDS0	00/00/0000	Prefix Type: RBOC Switch Name: CHCG IRVING Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILNE20T 🔧 Explore Switch(CLLI: CHCGILIRDS0))
773-866 is split into 1,000-number blocks - detail below
773-866-0XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN02	CHCGILIRDS0	N/A	Prefix Type: RBOC Switch Name: CHCG IRVING Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILNE20T 🔧 Explore Switch(CLLI: CHCGILIRDS0))
773-866-1XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN02	CHCGILIRDS0	N/A	Prefix Type: RBOC Switch Name: CHCG IRVING Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILNE20T 🔧 Explore Switch(CLLI: CHCGILIRDS0))
773-866-2XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN02	CHCGILIRDS0	N/A	Prefix Type: RBOC Switch Name: CHCG IRVING Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILNE20T 🔧 Explore Switch(CLLI: CHCGILIRDS0))
773-866-3XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN02	CHCGILIRDS0	N/A	Prefix Type: RBOC Switch Name: CHCG IRVING Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILNE20T 🔧 Explore Switch(CLLI: CHCGILIRDS0))
773-866-4XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN02	CHCGILIRDS0	N/A	Prefix Type: RBOC Switch Name: CHCG IRVING Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILNE20T 🔧 Explore Switch(CLLI: CHCGILIRDS0))
773-866-5XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN02	CHCGILIRDS0	N/A	Prefix Type: RBOC Switch Name: CHCG IRVING Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILNE20T 🔧 Explore Switch(CLLI: CHCGILIRDS0))
773-866-6XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN02	CHCGILIRDS0	N/A	Prefix Type: RBOC Switch Name: CHCG IRVING Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILNE20T 🔧 Explore Switch(CLLI: CHCGILIRDS0))
773-866-7XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN02	CHCGILIRDS0	N/A	Prefix Type: RBOC Switch Name: CHCG IRVING Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILNE20T 🔧 Explore Switch(CLLI: CHCGILIRDS0))
773-866-8XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN02	CHCGILIRDS0	N/A	Prefix Type: RBOC Switch Name: CHCG IRVING Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILNE20T 🔧 Explore Switch(CLLI: CHCGILIRDS0))
773-867	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN03	PRRGILXLDS0	00/00/0000	Prefix Type: RBOC Switch Name: PARK RIDGE DS0 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: LBRDILLM20T 🔧 Explore Switch(CLLI: PRRGILXLDS0))
773-867 is split into 1,000-number blocks - detail below
773-867-2XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN03	PRRGILXLDS0	N/A	Prefix Type: RBOC Switch Name: PARK RIDGE DS0 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: LBRDILLM20T 🔧 Explore Switch(CLLI: PRRGILXLDS0))
773-867-4XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN03	PRRGILXLDS0	N/A	Prefix Type: RBOC Switch Name: PARK RIDGE DS0 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: LBRDILLM20T 🔧 Explore Switch(CLLI: PRRGILXLDS0))
773-867-7XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN03	PRRGILXLDS0	N/A	Prefix Type: RBOC Switch Name: PARK RIDGE DS0 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: LBRDILLM20T 🔧 Explore Switch(CLLI: PRRGILXLDS0))
773-867-8XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN03	PRRGILXLDS0	N/A	Prefix Type: RBOC Switch Name: PARK RIDGE DS0 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: LBRDILLM20T 🔧 Explore Switch(CLLI: PRRGILXLDS0))
773-868	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN04	CHCGILLWDS1	00/00/0000	Prefix Type: RBOC Switch Name: CHCG LAKEVIEW DS1 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILNE50T 🔧 Explore Switch(CLLI: CHCGILLWDS1))
773-868 is split into 1,000-number blocks - detail below
773-868-0XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN04	CHCGILLWDS1	N/A	Prefix Type: RBOC Switch Name: CHCG LAKEVIEW DS1 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILNE50T 🔧 Explore Switch(CLLI: CHCGILLWDS1))
773-868-1XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN04	CHCGILLWDS1	N/A	Prefix Type: RBOC Switch Name: CHCG LAKEVIEW DS1 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILNE50T 🔧 Explore Switch(CLLI: CHCGILLWDS1))
773-868-2XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN04	CHCGILLWDS1	N/A	Prefix Type: RBOC Switch Name: CHCG LAKEVIEW DS1 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILNE50T 🔧 Explore Switch(CLLI: CHCGILLWDS1))
773-868-3XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN04	CHCGILLWDS1	N/A	Prefix Type: RBOC Switch Name: CHCG LAKEVIEW DS1 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILNE50T 🔧 Explore Switch(CLLI: CHCGILLWDS1))
773-868-4XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN04	CHCGILLWDS1	N/A	Prefix Type: RBOC Switch Name: CHCG LAKEVIEW DS1 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILNE50T 🔧 Explore Switch(CLLI: CHCGILLWDS1))
773-868-5XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN04	CHCGILLWDS1	N/A	Prefix Type: RBOC Switch Name: CHCG LAKEVIEW DS1 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILNE50T 🔧 Explore Switch(CLLI: CHCGILLWDS1))
773-868-6XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN04	CHCGILLWDS1	N/A	Prefix Type: RBOC Switch Name: CHCG LAKEVIEW DS1 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILNE50T 🔧 Explore Switch(CLLI: CHCGILLWDS1))
773-868-8XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN04	CHCGILLWDS1	N/A	Prefix Type: RBOC Switch Name: CHCG LAKEVIEW DS1 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILNE50T 🔧 Explore Switch(CLLI: CHCGILLWDS1))
773-868-9XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN04	CHCGILLWDS1	N/A	Prefix Type: RBOC Switch Name: CHCG LAKEVIEW DS1 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILNE50T 🔧 Explore Switch(CLLI: CHCGILLWDS1))
773-869	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN06	CHCGILLADS0	00/00/0000	Prefix Type: RBOC Switch Name: CHCG LAFAYETTE DS0 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILST55T 🔧 Explore Switch(CLLI: CHCGILLADS0))
773-869 is split into 1,000-number blocks - detail below
773-869-1XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN06	CHCGILLADS0	N/A	Prefix Type: RBOC Switch Name: CHCG LAFAYETTE DS0 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILST55T 🔧 Explore Switch(CLLI: CHCGILLADS0))
773-869-8XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN06	CHCGILLADS0	N/A	Prefix Type: RBOC Switch Name: CHCG LAFAYETTE DS0 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILST55T 🔧 Explore Switch(CLLI: CHCGILLADS0))
773-869-9XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN06	CHCGILLADS0	N/A	Prefix Type: RBOC Switch Name: CHCG LAFAYETTE DS0 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILST55T 🔧 Explore Switch(CLLI: CHCGILLADS0))
773-871	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN04	CHCGILLWDS0	00/00/0000	Prefix Type: RBOC Switch Name: CHCG LAKEVIEW DS0 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILWB55T 🔧 Explore Switch(CLLI: CHCGILLWDS0))
773-873	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN07	CHCGILSTDS0	00/00/0000	Prefix Type: RBOC Switch Name: CHCG STEWART DS0 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILST55T 🔧 Explore Switch(CLLI: CHCGILSTDS0))
773-873 is split into 1,000-number blocks - detail below
773-873-0XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN07	CHCGILSTDS0	N/A	Prefix Type: RBOC Switch Name: CHCG STEWART DS0 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILST55T 🔧 Explore Switch(CLLI: CHCGILSTDS0))
773-873-1XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN07	CHCGILSTDS0	N/A	Prefix Type: RBOC Switch Name: CHCG STEWART DS0 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILST55T 🔧 Explore Switch(CLLI: CHCGILSTDS0))
773-873-3XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN07	CHCGILSTDS0	N/A	Prefix Type: RBOC Switch Name: CHCG STEWART DS0 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILST55T 🔧 Explore Switch(CLLI: CHCGILSTDS0))
773-873-4XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN07	CHCGILSTDS0	N/A	Prefix Type: RBOC Switch Name: CHCG STEWART DS0 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILST55T 🔧 Explore Switch(CLLI: CHCGILSTDS0))
773-873-8XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN07	CHCGILSTDS0	N/A	Prefix Type: RBOC Switch Name: CHCG STEWART DS0 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILST55T 🔧 Explore Switch(CLLI: CHCGILSTDS0))
773-873-9XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN07	CHCGILSTDS0	N/A	Prefix Type: RBOC Switch Name: CHCG STEWART DS0 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILST55T 🔧 Explore Switch(CLLI: CHCGILSTDS0))
773-874	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN07	CHCGILSTDS1	00/00/0000	Prefix Type: RBOC Switch Name: CHCG STEWART DS1 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILSTDS1))
773-878	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN02	CHCGILEDDS0	00/00/0000	Prefix Type: RBOC Switch Name: EDGEWATER DS0 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILNE50T 🔧 Explore Switch(CLLI: CHCGILEDDS0))
773-880	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN04	CHCGILLWDS1	00/00/0000	Prefix Type: RBOC Switch Name: CHCG LAKEVIEW DS1 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILNE50T 🔧 Explore Switch(CLLI: CHCGILLWDS1))
773-881	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN10	CHCGILBEDS0	00/00/0000	Prefix Type: RBOC Switch Name: CHCG BEVERLY DS0 Switch Type: EWSD LATA: Chicago IL METRO (358) Tandem: CHCGILST55T 🔧 Explore Switch(CLLI: CHCGILBEDS0))
773-883	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN04	CHCGILLWDS1	00/00/0000	Prefix Type: RBOC Switch Name: CHCG LAKEVIEW DS1 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILNE50T 🔧 Explore Switch(CLLI: CHCGILLWDS1))
773-884	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN08	CHCGILPMDS0	00/00/0000	Prefix Type: RBOC Switch Name: CHCG PORTSMOUTH Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILWB55T 🔧 Explore Switch(CLLI: CHCGILPMDS0))
773-889	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN05	CHCGILMEDS0	00/00/0000	Prefix Type: RBOC Switch Name: CHCG MERRIMAC Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILWB55T 🔧 Explore Switch(CLLI: CHCGILMEDS0))
773-890	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN06	CHCGILLADS0	00/00/0000	Prefix Type: RBOC Switch Name: CHCG LAFAYETTE DS0 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILST55T 🔧 Explore Switch(CLLI: CHCGILLADS0))
773-892	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN07	CHCGILSTDS0	00/00/0000	Prefix Type: RBOC Switch Name: CHCG STEWART DS0 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILST55T 🔧 Explore Switch(CLLI: CHCGILSTDS0))
773-892 is split into 1,000-number blocks - detail below
773-892-0XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN07	CHCGILSTDS0	N/A	Prefix Type: RBOC Switch Name: CHCG STEWART DS0 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILST55T 🔧 Explore Switch(CLLI: CHCGILSTDS0))
773-892-3XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN07	CHCGILSTDS0	N/A	Prefix Type: RBOC Switch Name: CHCG STEWART DS0 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILST55T 🔧 Explore Switch(CLLI: CHCGILSTDS0))
773-894	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN11	CHCGILOHDS0	00/00/0000	Prefix Type: RBOC Switch Name: CHCG OHARE Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILWB55T 🔧 Explore Switch(CLLI: CHCGILOHDS0))
773-907	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN02	CHCGILEDDS0	00/00/0000	Prefix Type: RBOC Switch Name: EDGEWATER DS0 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILNE50T 🔧 Explore Switch(CLLI: CHCGILEDDS0))
773-918	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN08	CHCGILPRDS0	00/00/0000	Prefix Type: RBOC Switch Name: CHCG PROSPECT Switch Type: EWSD LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILPRDS0))
773-918 is split into 1,000-number blocks - detail below
773-918-0XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN08	CHCGILPRDS0	N/A	Prefix Type: RBOC Switch Name: CHCG PROSPECT Switch Type: EWSD LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILPRDS0))
773-918-1XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN08	CHCGILPRDS0	N/A	Prefix Type: RBOC Switch Name: CHCG PROSPECT Switch Type: EWSD LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILPRDS0))
773-918-3XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN08	CHCGILPRDS0	N/A	Prefix Type: RBOC Switch Name: CHCG PROSPECT Switch Type: EWSD LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILPRDS0))
773-918-4XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN08	CHCGILPRDS0	N/A	Prefix Type: RBOC Switch Name: CHCG PROSPECT Switch Type: EWSD LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILPRDS0))
773-918-6XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN08	CHCGILPRDS0	N/A	Prefix Type: RBOC Switch Name: CHCG PROSPECT Switch Type: EWSD LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILPRDS0))
773-918-7XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN08	CHCGILPRDS0	N/A	Prefix Type: RBOC Switch Name: CHCG PROSPECT Switch Type: EWSD LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILPRDS0))
773-918-8XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN08	CHCGILPRDS0	N/A	Prefix Type: RBOC Switch Name: CHCG PROSPECT Switch Type: EWSD LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILPRDS0))
773-921	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN05	CHCGILAURP0	00/00/0000	Prefix Type: RBOC Switch Name: CHCZ 5 Switch Type: N/A LATA: Chicago IL METRO (358) Tandem: N/A 🔧 Explore Switch(CLLI: CHCGILAURP0))
773-921 is split into 1,000-number blocks - detail below
773-921-0XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN05	CHCGILAURP0	N/A	Prefix Type: RBOC Switch Name: CHCZ 5 Switch Type: N/A LATA: Chicago IL METRO (358) Tandem: N/A 🔧 Explore Switch(CLLI: CHCGILAURP0))
773-921-1XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN05	CHCGILAURP0	N/A	Prefix Type: RBOC Switch Name: CHCZ 5 Switch Type: N/A LATA: Chicago IL METRO (358) Tandem: N/A 🔧 Explore Switch(CLLI: CHCGILAURP0))
773-921-3XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN05	CHCGILAURP0	N/A	Prefix Type: RBOC Switch Name: CHCZ 5 Switch Type: N/A LATA: Chicago IL METRO (358) Tandem: N/A 🔧 Explore Switch(CLLI: CHCGILAURP0))
773-921-4XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN05	CHCGILAURP0	N/A	Prefix Type: RBOC Switch Name: CHCZ 5 Switch Type: N/A LATA: Chicago IL METRO (358) Tandem: N/A 🔧 Explore Switch(CLLI: CHCGILAURP0))
773-921-6XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN05	CHCGILAURP0	N/A	Prefix Type: RBOC Switch Name: CHCZ 5 Switch Type: N/A LATA: Chicago IL METRO (358) Tandem: N/A 🔧 Explore Switch(CLLI: CHCGILAURP0))
773-921-8XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN05	CHCGILAURP0	N/A	Prefix Type: RBOC Switch Name: CHCZ 5 Switch Type: N/A LATA: Chicago IL METRO (358) Tandem: N/A 🔧 Explore Switch(CLLI: CHCGILAURP0))
773-921-9XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN05	CHCGILAURP0	N/A	Prefix Type: RBOC Switch Name: CHCZ 5 Switch Type: N/A LATA: Chicago IL METRO (358) Tandem: N/A 🔧 Explore Switch(CLLI: CHCGILAURP0))
773-924	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN07	CHCGILOKDS0	00/00/0000	Prefix Type: RBOC Switch Name: CHCG OAKLAND DS0 Switch Type: EWSD LATA: Chicago IL METRO (358) Tandem: CHCGILST55T 🔧 Explore Switch(CLLI: CHCGILOKDS0))
773-925	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN08	CHCGILPRDS0	00/00/0000	Prefix Type: RBOC Switch Name: CHCG PROSPECT Switch Type: EWSD LATA: Chicago IL METRO (358) Tandem: CHCGILID71T 🔧 Explore Switch(CLLI: CHCGILPRDS0))
773-926	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN07	CHCGILDODS0	00/00/0000	Prefix Type: RBOC Switch Name: CHCG HYDE DOR Switch Type: EWSD LATA: Chicago IL METRO (358) Tandem: CHCGILST55T 🔧 Explore Switch(CLLI: CHCGILDODS0))
773-927	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN06	CHCGILLADS0	00/00/0000	Prefix Type: RBOC Switch Name: CHCG LAFAYETTE DS0 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILST55T 🔧 Explore Switch(CLLI: CHCGILLADS0))
773-928	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN10	CHCGILPUDS0	00/00/0000	Prefix Type: RBOC Switch Name: CHCG PULLMAN DS0 Switch Type: EWSD LATA: Chicago IL METRO (358) Tandem: CHCGILST55T 🔧 Explore Switch(CLLI: CHCGILPUDS0))
773-929	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN04	CHCGILLWDS0	00/00/0000	Prefix Type: RBOC Switch Name: CHCG LAKEVIEW DS0 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILWB55T 🔧 Explore Switch(CLLI: CHCGILLWDS0))
773-933	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN09	CHCGILSCDS0	00/00/0000	Prefix Type: RBOC Switch Name: CHCG SOU CHCG DS0 Switch Type: EWSD LATA: Chicago IL METRO (358) Tandem: CHCGILST55T 🔧 Explore Switch(CLLI: CHCGILSCDS0))
773-935	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN04	CHCGILLWDS1	00/00/0000	Prefix Type: RBOC Switch Name: CHCG LAKEVIEW DS1 Switch Type: 5ESS LATA: Chicago IL METRO (358) Tandem: CHCGILNE50T 🔧 Explore Switch(CLLI: CHCGILLWDS1))
773-947	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN07	CHCGILDODS0	00/00/0000	Prefix Type: RBOC Switch Name: CHCG HYDE DOR Switch Type: EWSD LATA: Chicago IL METRO (358) Tandem: CHCGILST55T 🔧 Explore Switch(CLLI: CHCGILDODS0))
773-947 is split into 1,000-number blocks - detail below
773-947-0XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN07	CHCGILDODS0	N/A	Prefix Type: RBOC Switch Name: CHCG HYDE DOR Switch Type: EWSD LATA: Chicago IL METRO (358) Tandem: CHCGILST55T 🔧 Explore Switch(CLLI: CHCGILDODS0))
773-947-1XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN07	CHCGILDODS0	N/A	Prefix Type: RBOC Switch Name: CHCG HYDE DOR Switch Type: EWSD LATA: Chicago IL METRO (358) Tandem: CHCGILST55T 🔧 Explore Switch(CLLI: CHCGILDODS0))
773-947-2XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN07	CHCGILDODS0	N/A	Prefix Type: RBOC Switch Name: CHCG HYDE DOR Switch Type: EWSD LATA: Chicago IL METRO (358) Tandem: CHCGILST55T 🔧 Explore Switch(CLLI: CHCGILDODS0))
773-947-3XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN07	CHCGILDODS0	N/A	Prefix Type: RBOC Switch Name: CHCG HYDE DOR Switch Type: EWSD LATA: Chicago IL METRO (358) Tandem: CHCGILST55T 🔧 Explore Switch(CLLI: CHCGILDODS0))
773-947-5XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN07	CHCGILDODS0	N/A	Prefix Type: RBOC Switch Name: CHCG HYDE DOR Switch Type: EWSD LATA: Chicago IL METRO (358) Tandem: CHCGILST55T 🔧 Explore Switch(CLLI: CHCGILDODS0))
773-947-6XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN07	CHCGILDODS0	N/A	Prefix Type: RBOC Switch Name: CHCG HYDE DOR Switch Type: EWSD LATA: Chicago IL METRO (358) Tandem: CHCGILST55T 🔧 Explore Switch(CLLI: CHCGILDODS0))
773-947-7XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	CHICGOZN07	CHCGILDODS0	N/A	Prefix Type: RBOC Switch Name: CHCG HYDE DOR Switch Type: EWSD LATA: Chicago IL METRO (358) Tandem: CHCGILST55T 🔧 Explore Switch(CLLI: CHCGILDODS0))
773-947-8XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329