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
408-600	CA	T-MOBILE USA, INC. (T-Mobile US, Inc)	0017078262	RMD0019051	6529	SNJS SOUTH	CNCRCALZ0MD	08/16/2007	Prefix Type: PCS Switch Name: CONCORD Switch Type: N/A LATA: San Francisco CA (722) Tandem: N/A 🔧 Explore Switch(CLLI: CNCRCALZ0MD))
408-600 is split into 1,000-number blocks - detail below
408-600-0XXX	CA	LEVEL 3 COMMUNICATIONS, LLC - CA (Lumen Technologies, Inc)	0015338122	RMD0006112	8826	SNJS SOUTH	NOCLLIKNOWN	09/07/2007	Prefix Type: CLEC Switch Name: N/A Switch Type: N/A LATA: San Francisco CA (722) Tandem: N/A 🔧 Explore Switch(CLLI: NOCLLIKNOWN))
408-600-1XXX	CA	LEVEL 3 COMMUNICATIONS, LLC - CA (Lumen Technologies, Inc)	0015338122	RMD0006112	8826	SNJS SOUTH	NOCLLIKNOWN	09/26/2007	Prefix Type: CLEC Switch Name: N/A Switch Type: N/A LATA: San Francisco CA (722) Tandem: N/A 🔧 Explore Switch(CLLI: NOCLLIKNOWN))
408-600-2XXX	CA	LEVEL 3 COMMUNICATIONS, LLC - CA (Lumen Technologies, Inc)	0015338122	RMD0006112	8826	SNJS SOUTH	NOCLLIKNOWN	11/21/2007	Prefix Type: CLEC Switch Name: N/A Switch Type: N/A LATA: San Francisco CA (722) Tandem: N/A 🔧 Explore Switch(CLLI: NOCLLIKNOWN))
408-600-3XXX	CA	MCIMETRO ACCESS TRANSMISSION SERVICES LLC - CA (Verizon Communications)	0004999405	RMD0002957	7240	SNJS SOUTH	SNJSCARMDS0	02/28/2008	Prefix Type: CLEC Switch Name: SAN JOSE Switch Type: Northern Telecom DMS100 (Digital) Host LATA: San Francisco CA (722) Tandem: N/A 🔧 Explore Switch(CLLI: SNJSCARMDS0))
408-600-4XXX	CA	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA (Verizon Wireless)	0029611852	RMD0003439	6006	SNJS SOUTH	HYWRCAMCDMD	09/14/2007	Prefix Type: WIRELESS Switch Name: N/A Switch Type: N/A LATA: San Francisco CA (722) Tandem: N/A 🔧 Explore Switch(CLLI: HYWRCAMCDMD))
408-600-5XXX	CA	T-MOBILE USA, INC. (T-Mobile US, Inc)	0017078262	RMD0019051	6529	SNJS SOUTH	CNCRCALZ0MD	01/24/2008	Prefix Type: PCS Switch Name: CONCORD Switch Type: N/A LATA: San Francisco CA (722) Tandem: N/A 🔧 Explore Switch(CLLI: CNCRCALZ0MD))
408-600-6XXX	CA	METROPCS, INC. (T-Mobile US, Inc)		N/A	5562	SNJS SOUTH	OKLECAZVGT0	12/27/2007	Prefix Type: PCS Switch Name: N/A Switch Type: N/A LATA: San Francisco CA (722) Tandem: N/A 🔧 Explore Switch(CLLI: OKLECAZVGT0))
408-600-7XXX	CA	METROPCS, INC. (T-Mobile US, Inc)		N/A	5562	SNJS SOUTH	OKLECAZVGT0	12/27/2007	Prefix Type: PCS Switch Name: N/A Switch Type: N/A LATA: San Francisco CA (722) Tandem: N/A 🔧 Explore Switch(CLLI: OKLECAZVGT0))
408-600-8XXX	CA	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA (Verizon Wireless)	0029611852	RMD0003439	6006	SNJS SOUTH	HYWRCAMCDMD	09/14/2007	Prefix Type: WIRELESS Switch Name: N/A Switch Type: N/A LATA: San Francisco CA (722) Tandem: N/A 🔧 Explore Switch(CLLI: HYWRCAMCDMD))
408-600-9XXX	CA	T-MOBILE USA, INC. (T-Mobile US, Inc)	0017078262	RMD0019051	6529	SNJS SOUTH	CNCRCALZ0MD	08/20/2007	Prefix Type: PCS Switch Name: CONCORD Switch Type: N/A LATA: San Francisco CA (722) Tandem: N/A 🔧 Explore Switch(CLLI: CNCRCALZ0MD))