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npa-nxx	State/Province	Company	FRN	RMD	OCN	Rate Center	CLLI	Assign Date	Misc
847-300	IL	TELEPORT COMMUNICATIONS AMERICA, LLC - IL (AT&T)	0004274114	RMD0003897	7136	WAUKEGAN	OKBRILOAXEX	08/30/2023	Prefix Type: CLEC Switch Name: OAK BROOK Switch Type: N/A LATA: Chicago IL METRO (358) Tandem: N/A 🔧 Explore Switch(CLLI: OKBRILOAXEX))
847-300 is split into 1,000-number blocks - detail below
847-300-0XXX	IL	TELEPORT COMMUNICATIONS AMERICA, LLC - IL (AT&T)	0004274114	RMD0003897	7136	WAUKEGAN	OKBRILOAXEX	08/30/2023	Prefix Type: CLEC Switch Name: OAK BROOK Switch Type: N/A LATA: Chicago IL METRO (358) Tandem: N/A 🔧 Explore Switch(CLLI: OKBRILOAXEX))
847-300-1XXX	IL	TELEPORT COMMUNICATIONS AMERICA, LLC - IL (AT&T)	0004274114	RMD0003897	7136	WAUKEGAN	OKBRILOAXEX	08/30/2023	Prefix Type: CLEC Switch Name: OAK BROOK Switch Type: N/A LATA: Chicago IL METRO (358) Tandem: N/A 🔧 Explore Switch(CLLI: OKBRILOAXEX))
847-300-2XXX	IL	TELEPORT COMMUNICATIONS AMERICA, LLC - IL (AT&T)	0004274114	RMD0003897	7136	WAUKEGAN	OKBRILOAXEX	08/30/2023	Prefix Type: CLEC Switch Name: OAK BROOK Switch Type: N/A LATA: Chicago IL METRO (358) Tandem: N/A 🔧 Explore Switch(CLLI: OKBRILOAXEX))
847-300-3XXX	IL	TELEPORT COMMUNICATIONS AMERICA, LLC - IL (AT&T)	0004274114	RMD0003897	7136	WAUKEGAN	OKBRILOAXEX	08/30/2023	Prefix Type: CLEC Switch Name: OAK BROOK Switch Type: N/A LATA: Chicago IL METRO (358) Tandem: N/A 🔧 Explore Switch(CLLI: OKBRILOAXEX))
847-300-4XXX	IL	TELEPORT COMMUNICATIONS AMERICA, LLC - IL (AT&T)	0004274114	RMD0003897	7136	WAUKEGAN	OKBRILOAXEX	08/30/2023	Prefix Type: CLEC Switch Name: OAK BROOK Switch Type: N/A LATA: Chicago IL METRO (358) Tandem: N/A 🔧 Explore Switch(CLLI: OKBRILOAXEX))
847-300-5XXX	IL	TELEPORT COMMUNICATIONS AMERICA, LLC - IL (AT&T)	0004274114	RMD0003897	7136	WAUKEGAN	OKBRILOAXEX	08/30/2023	Prefix Type: CLEC Switch Name: OAK BROOK Switch Type: N/A LATA: Chicago IL METRO (358) Tandem: N/A 🔧 Explore Switch(CLLI: OKBRILOAXEX))
847-300-6XXX	IL	TELEPORT COMMUNICATIONS AMERICA, LLC - IL (AT&T)	0004274114	RMD0003897	7136	WAUKEGAN	OKBRILOAXEX	08/30/2023	Prefix Type: CLEC Switch Name: OAK BROOK Switch Type: N/A LATA: Chicago IL METRO (358) Tandem: N/A 🔧 Explore Switch(CLLI: OKBRILOAXEX))
847-300-7XXX	IL	TELEPORT COMMUNICATIONS AMERICA, LLC - IL (AT&T)	0004274114	RMD0003897	7136	WAUKEGAN	OKBRILOAXEX	08/30/2023	Prefix Type: CLEC Switch Name: OAK BROOK Switch Type: N/A LATA: Chicago IL METRO (358) Tandem: N/A 🔧 Explore Switch(CLLI: OKBRILOAXEX))
847-300-8XXX	IL	TELEPORT COMMUNICATIONS AMERICA, LLC - IL (AT&T)	0004274114	RMD0003897	7136	WAUKEGAN	OKBRILOAXEX	08/30/2023	Prefix Type: CLEC Switch Name: OAK BROOK Switch Type: N/A LATA: Chicago IL METRO (358) Tandem: N/A 🔧 Explore Switch(CLLI: OKBRILOAXEX))
847-300-9XXX	IL	TELEPORT COMMUNICATIONS AMERICA, LLC - IL (AT&T)	0004274114	RMD0003897	7136	WAUKEGAN	OKBRILOAXEX	08/30/2023	Prefix Type: CLEC Switch Name: OAK BROOK Switch Type: N/A LATA: Chicago IL METRO (358) Tandem: N/A 🔧 Explore Switch(CLLI: OKBRILOAXEX))