TelcoData.US: Search by Area Code / Exchange

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npa-nxx	State/Province	Company	FRN	RMD	OCN	Rate Center	CLLI	Assign Date	Misc
312-292	IL	BANDWIDTH.COM CLEC, LLC - IL	0017042060	RMD0003709	984E	CHICGOZN01	CHCGILWBXDZ	09/02/2011	Prefix Type: CLEC Switch Name: N/A Switch Type: N/A LATA: Chicago IL METRO (358) Tandem: N/A 🔧 Explore Switch(CLLI: CHCGILWBXDZ))
312-292 is split into 1,000-number blocks - detail below
312-292-0XXX	IL	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL (Verizon Wireless)	0002846962	RMD0003369	6333	CHICGOZN01	RVDLILBDAMD	06/18/2012	Prefix Type: WIRELESS Switch Name: N/A Switch Type: N/A LATA: Chicago IL METRO (358) Tandem: N/A 🔧 Explore Switch(CLLI: RVDLILBDAMD))
312-292-1XXX	IL	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL (Verizon Wireless)	0002846962	RMD0003369	6333	CHICGOZN01	RVDLILBDAMD	06/18/2012	Prefix Type: WIRELESS Switch Name: N/A Switch Type: N/A LATA: Chicago IL METRO (358) Tandem: N/A 🔧 Explore Switch(CLLI: RVDLILBDAMD))
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))
312-292-5XXX	IL	PAETEC ITEL, LLC	0015247810	RMD0038378	829J	CHICGOZN01	CHCGILWUDS0	10/06/2011	Prefix Type: IPES Switch Name: CHICAGO Switch Type: WECO 5ESS (Digital) LATA: Chicago IL METRO (358) Tandem: N/A 🔧 Explore Switch(CLLI: CHCGILWUDS0))
312-292-6XXX	IL	T-MOBILE USA, INC. (T-Mobile US, Inc)	0017078262	RMD0019051	6529	CHICGOZN01	CHCGILMF6MD	10/10/2011	Prefix Type: PCS Switch Name: N/A Switch Type: N/A LATA: Chicago IL METRO (358) Tandem: N/A 🔧 Explore Switch(CLLI: CHCGILMF6MD))
312-292-7XXX	IL	T-MOBILE USA, INC. (T-Mobile US, Inc)	0017078262	RMD0019051	6529	CHICGOZN01	CHCGILMF6MD	10/10/2011	Prefix Type: PCS Switch Name: N/A Switch Type: N/A LATA: Chicago IL METRO (358) Tandem: N/A 🔧 Explore Switch(CLLI: CHCGILMF6MD))
312-292-8XXX	IL	T-MOBILE USA, INC. (T-Mobile US, Inc)	0017078262	RMD0019051	6529	CHICGOZN01	CHCGILMF6MD	10/10/2011	Prefix Type: PCS Switch Name: N/A Switch Type: N/A LATA: Chicago IL METRO (358) Tandem: N/A 🔧 Explore Switch(CLLI: CHCGILMF6MD))
312-292-9XXX	IL	BANDWIDTH.COM CLEC, LLC - IL	0017042060	RMD0003709	984E	CHICGOZN01	CHCGILWBXDZ	11/15/2011	Prefix Type: CLEC Switch Name: N/A Switch Type: N/A LATA: Chicago IL METRO (358) Tandem: N/A 🔧 Explore Switch(CLLI: CHCGILWBXDZ))