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
443-375	MD	METROPCS, INC. (T-Mobile US, Inc)		N/A	5562	HAMPSTEAD	BLTMMDCH40Z	00/00/0000	Prefix Type: PCS Switch Name: N/A Switch Type: N/A LATA: Baltimore MD (238) Tandem: N/A 🔧 Explore Switch(CLLI: BLTMMDCH40Z))
443-375 is split into 1,000-number blocks - detail below
443-375-0XXX	MD	METROPCS, INC. (T-Mobile US, Inc)		N/A	5562	HAMPSTEAD	BLTMMDCH40Z	N/A	Prefix Type: PCS Switch Name: N/A Switch Type: N/A LATA: Baltimore MD (238) Tandem: N/A 🔧 Explore Switch(CLLI: BLTMMDCH40Z))
443-375-1XXX	MD	METROPCS, INC. (T-Mobile US, Inc)		N/A	5562	HAMPSTEAD	BLTMMDCH40Z	N/A	Prefix Type: PCS Switch Name: N/A Switch Type: N/A LATA: Baltimore MD (238) Tandem: N/A 🔧 Explore Switch(CLLI: BLTMMDCH40Z))
443-375-2XXX	MD	METROPCS, INC. (T-Mobile US, Inc)		N/A	5562	HAMPSTEAD	BLTMMDCH40Z	N/A	Prefix Type: PCS Switch Name: N/A Switch Type: N/A LATA: Baltimore MD (238) Tandem: N/A 🔧 Explore Switch(CLLI: BLTMMDCH40Z))
443-375-3XXX	MD	BANDWIDTH.COM CLEC, LLC - MD	0017042060	RMD0003709	071F	HAMPSTEAD	NOCLLIKNOWN	08/05/2010	Prefix Type: CLEC Switch Name: N/A Switch Type: N/A LATA: Baltimore MD (238) Tandem: N/A 🔧 Explore Switch(CLLI: NOCLLIKNOWN))
443-375-4XXX	MD	VDL, INC. DBA GLOBAL TELECOM BROKERS - MD	0018511246	RMD0003054	4492	HAMPSTEAD	NOCLLIKNOWN	01/21/2004	Prefix Type: CLEC Switch Name: N/A Switch Type: N/A LATA: Baltimore MD (238) Tandem: N/A 🔧 Explore Switch(CLLI: NOCLLIKNOWN))
443-375-5XXX	MD	ONVOY, LLC - MD (Sinch)	0004323028	RMD0001966	876D	HAMPSTEAD	NOCLLIKNOWN	03/26/2024	Prefix Type: CLEC Switch Name: N/A Switch Type: N/A LATA: Baltimore MD (238) Tandem: N/A 🔧 Explore Switch(CLLI: NOCLLIKNOWN))
443-375-6XXX	MD	METROPCS, INC. (T-Mobile US, Inc)		N/A	5562	HAMPSTEAD	BLTMMDCH40Z	N/A	Prefix Type: PCS Switch Name: N/A Switch Type: N/A LATA: Baltimore MD (238) Tandem: N/A 🔧 Explore Switch(CLLI: BLTMMDCH40Z))
443-375-7XXX	MD	METROPCS, INC. (T-Mobile US, Inc)		N/A	5562	HAMPSTEAD	BLTMMDCH40Z	N/A	Prefix Type: PCS Switch Name: N/A Switch Type: N/A LATA: Baltimore MD (238) Tandem: N/A 🔧 Explore Switch(CLLI: BLTMMDCH40Z))
443-375-8XXX	MD	METROPCS, INC. (T-Mobile US, Inc)		N/A	5562	HAMPSTEAD	BLTMMDCH40Z	N/A	Prefix Type: PCS Switch Name: N/A Switch Type: N/A LATA: Baltimore MD (238) Tandem: N/A 🔧 Explore Switch(CLLI: BLTMMDCH40Z))
443-375-9XXX	MD	OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC (T-Mobile US, Inc)		N/A	6855	HAMPSTEAD	NOCLLIKNOWN	N/A	Prefix Type: PCS Switch Name: N/A Switch Type: N/A LATA: Baltimore MD (238) Tandem: N/A 🔧 Explore Switch(CLLI: NOCLLIKNOWN))