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
240-386	MD	VERIZON MARYLAND, INC. (Verizon Communications)	0002166825	RMD0002941	9212	WSNGTNZN10	GTBGMDGBPS0	00/00/0000	Prefix Type: RBOC Switch Name: GAITHERSBURG Switch Type: N/A LATA: N/A Tandem: N/A 🔧 Explore Switch(CLLI: GTBGMDGBPS0))
240-386 is split into 1,000-number blocks - detail below
240-386-0XXX	MD	OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC (T-Mobile US, Inc)		N/A	6855	WSNGTNZN10	BTVLMD12CM9	12/04/2020	Prefix Type: PCS Switch Name: N/A Switch Type: N/A LATA: N/A Tandem: N/A 🔧 Explore Switch(CLLI: BTVLMD12CM9))
240-386-1XXX	MD	PAETEC ITEL, LLC	0015247810	RMD0038378	829J	WSNGTNZN10	CHCHMDBE6MD	02/18/2015	Prefix Type: IPES Switch Name: MONTGOMERY Switch Type: N/A LATA: N/A Tandem: N/A 🔧 Explore Switch(CLLI: CHCHMDBE6MD))
240-386-2XXX	MD	VERIZON MARYLAND, INC. (Verizon Communications)	0002166825	RMD0002941	9212	WSNGTNZN10	GTBGMDGBPS0	N/A	Prefix Type: RBOC Switch Name: GAITHERSBURG Switch Type: N/A LATA: N/A Tandem: N/A 🔧 Explore Switch(CLLI: GTBGMDGBPS0))
240-386-3XXX	MD	VERIZON MARYLAND, INC. (Verizon Communications)	0002166825	RMD0002941	9212	WSNGTNZN10	GTBGMDGBPS0	N/A	Prefix Type: RBOC Switch Name: GAITHERSBURG Switch Type: N/A LATA: N/A Tandem: N/A 🔧 Explore Switch(CLLI: GTBGMDGBPS0))
240-386-4XXX	MD	VERIZON MARYLAND, INC. (Verizon Communications)	0002166825	RMD0002941	9212	WSNGTNZN10	GTBGMDGBPS0	N/A	Prefix Type: RBOC Switch Name: GAITHERSBURG Switch Type: N/A LATA: N/A Tandem: N/A 🔧 Explore Switch(CLLI: GTBGMDGBPS0))
240-386-5XXX	MD	VERIZON MARYLAND, INC. (Verizon Communications)	0002166825	RMD0002941	9212	WSNGTNZN10	GTBGMDGBPS0	N/A	Prefix Type: RBOC Switch Name: GAITHERSBURG Switch Type: N/A LATA: N/A Tandem: N/A 🔧 Explore Switch(CLLI: GTBGMDGBPS0))
240-386-6XXX	MD	VERIZON MARYLAND, INC. (Verizon Communications)	0002166825	RMD0002941	9212	WSNGTNZN10	GTBGMDGBPS0	N/A	Prefix Type: RBOC Switch Name: GAITHERSBURG Switch Type: N/A LATA: N/A Tandem: N/A 🔧 Explore Switch(CLLI: GTBGMDGBPS0))
240-386-7XXX	MD	OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC (T-Mobile US, Inc)		N/A	6855	WSNGTNZN10	BTVLMD12CM9	04/04/2006	Prefix Type: PCS Switch Name: N/A Switch Type: N/A LATA: N/A Tandem: N/A 🔧 Explore Switch(CLLI: BTVLMD12CM9))
240-386-8XXX	MD	COMCAST IP PHONE, LLC (Comcast)	0008497687	RMD0003552	318J	WSNGTNZN10	NOCLLIKNOWN	05/15/2009	Prefix Type: IPES Switch Name: N/A Switch Type: N/A LATA: N/A Tandem: N/A 🔧 Explore Switch(CLLI: NOCLLIKNOWN))
240-386-9XXX	MD	OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC (T-Mobile US, Inc)		N/A	6855	WSNGTNZN10	BTVLMD12CM9	08/14/2007	Prefix Type: PCS Switch Name: N/A Switch Type: N/A LATA: N/A Tandem: N/A 🔧 Explore Switch(CLLI: BTVLMD12CM9))