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npa-nxx	State/Province	Company	FRN	RMD	OCN	Rate Center	CLLI	Assign Date	Misc
847-463	IL	MCIMETRO ACCESS TRANSMISSION SERVICES LLC - IL (Verizon Communications)	0004999405	RMD0002957	7196	ARLIGTNHTS	EGVGILIFDS0	00/00/0000	Prefix Type: CLEC Switch Name: ELK GROVE Switch Type: Northern Telecom DMS100 (Digital) Host LATA: Chicago IL METRO (358) Tandem: N/A 🔧 Explore Switch(CLLI: EGVGILIFDS0))
847-463 is split into 1,000-number blocks - detail below
847-463-0XXX	IL	T-MOBILE USA, INC. (T-Mobile US, Inc)	0006945950	RMD0004209	6529	ARLIGTNHTS	CHCGILMF2MD	02/01/2007	Prefix Type: PCS Switch Name: N/A Switch Type: N/A LATA: Chicago IL METRO (358) Tandem: N/A 🔧 Explore Switch(CLLI: CHCGILMF2MD))
847-463-1XXX	IL	MCIMETRO ACCESS TRANSMISSION SERVICES LLC - IL (Verizon Communications)	0004999405	RMD0002957	7196	ARLIGTNHTS	EGVGILIFDS0	N/A	Prefix Type: CLEC Switch Name: ELK GROVE Switch Type: Northern Telecom DMS100 (Digital) Host LATA: Chicago IL METRO (358) Tandem: N/A 🔧 Explore Switch(CLLI: EGVGILIFDS0))
847-463-2XXX	IL	FIRST COMMUNICATIONS, LLC	0003764487	RMD0014015	460K	ARLIGTNHTS	CHCGILWUX6X	04/30/2002	Prefix Type: UNKNOWN Switch Name: N/A Switch Type: N/A LATA: Chicago IL METRO (358) Tandem: N/A 🔧 Explore Switch(CLLI: CHCGILWUX6X))
847-463-3XXX	IL	LEVEL 3 COMMUNICATIONS, LLC - IL (Lumen Technologies, Inc)		N/A	6115	ARLIGTNHTS	NOCLLIKNOWN	08/27/2002	Prefix Type: CLEC Switch Name: N/A Switch Type: N/A LATA: Chicago IL METRO (358) Tandem: N/A 🔧 Explore Switch(CLLI: NOCLLIKNOWN))
847-463-4XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	ARLIGTNHTS	ARLHILAHDS1	04/29/1999	Prefix Type: RBOC Switch Name: ARLINGTON HEIGHTS DS1 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILNE20T 🔧 Explore Switch(CLLI: ARLHILAHDS1))
847-463-5XXX	IL	MCIMETRO ACCESS TRANSMISSION SERVICES LLC - IL (Verizon Communications)	0004999405	RMD0002957	7196	ARLIGTNHTS	EGVGILIFDS0	N/A	Prefix Type: CLEC Switch Name: ELK GROVE Switch Type: Northern Telecom DMS100 (Digital) Host LATA: Chicago IL METRO (358) Tandem: N/A 🔧 Explore Switch(CLLI: EGVGILIFDS0))
847-463-6XXX	IL	RCN TELECOM SERVICES OF ILLINIOS, INC. - IL		N/A	8702	ARLIGTNHTS	NOCLLIKNOWN	12/21/2000	Prefix Type: CLEC Switch Name: N/A Switch Type: N/A LATA: Chicago IL METRO (358) Tandem: N/A 🔧 Explore Switch(CLLI: NOCLLIKNOWN))
847-463-7XXX	IL	FIRST COMMUNICATIONS, LLC	0003764487	RMD0014015	460K	ARLIGTNHTS	CHCGILWUX6X	11/27/2001	Prefix Type: UNKNOWN Switch Name: N/A Switch Type: N/A LATA: Chicago IL METRO (358) Tandem: N/A 🔧 Explore Switch(CLLI: CHCGILWUX6X))
847-463-8XXX	IL	ILLINOIS BELL TEL CO (AT&T)		N/A	9329	ARLIGTNHTS	ARLHILAHDS1	04/29/1999	Prefix Type: RBOC Switch Name: ARLINGTON HEIGHTS DS1 Switch Type: DMS100 LATA: Chicago IL METRO (358) Tandem: CHCGILNE20T 🔧 Explore Switch(CLLI: ARLHILAHDS1))
847-463-9XXX	IL	MCIMETRO ACCESS TRANSMISSION SERVICES LLC - IL (Verizon Communications)	0004999405	RMD0002957	7196	ARLIGTNHTS	EGVGILIFDS0	N/A	Prefix Type: CLEC Switch Name: ELK GROVE Switch Type: Northern Telecom DMS100 (Digital) Host LATA: Chicago IL METRO (358) Tandem: N/A 🔧 Explore Switch(CLLI: EGVGILIFDS0))