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npa-nxxStateCompanyFRNRMDOCNRate CenterCLLIAssign DateMisc
256-320ALMETROPCS, INC. (T-Mobile US, Inc)N/A5562SHEFFIELDHNVIAL03X8Y01/29/2001Prefix Type: PCS
Switch Name: N/A
Switch Type: N/A
LATA: N/A
Tandem: N/A
Detailed Switch Info
Thousands block for 256-320
256-320-0ALSOUTHERN COMMUNICATIONS SERVICES, INC.N/A6744SHEFFIELDNOCLLIKNOWN07/13/2004Prefix Type: WIRELESS
Switch Name: N/A
Switch Type: N/A
LATA: N/A
Tandem: N/A
Detailed Switch Info
256-320-1ALLEVEL 3 COMMUNICATIONS, LLC - ALN/A5255SHEFFIELDNOCLLIKNOWN02/21/2007Prefix Type: WIRELESS
Switch Name: N/A
Switch Type: N/A
LATA: N/A
Tandem: N/A
Detailed Switch Info
256-320-2ALLEVEL 3 COMMUNICATIONS, LLC - ALN/A5255SHEFFIELDNOCLLIKNOWN08/26/2003Prefix Type: WIRELESS
Switch Name: N/A
Switch Type: N/A
LATA: N/A
Tandem: N/A
Detailed Switch Info
256-320-3ALMETROPCS, INC.N/A5562SHEFFIELDHNVIAL03X8Y N/APrefix Type: WIRELESS
Switch Name: N/A
Switch Type: N/A
LATA: N/A
Tandem: N/A
Detailed Switch Info
256-320-4ALMCIMETRO ACCESS TRANSMISSION SERVICES LLC - ALN/A7469SHEFFIELDNOCLLIKNOWN03/22/2007Prefix Type: WIRELESS
Switch Name: N/A
Switch Type: N/A
LATA: N/A
Tandem: N/A
Detailed Switch Info
256-320-5ALCOMCAST IP PHONE, LLCN/A318JSHEFFIELDNOCLLIKNOWN02/21/2008Prefix Type: WIRELESS
Switch Name: N/A
Switch Type: N/A
LATA: N/A
Tandem: N/A
Detailed Switch Info
256-320-6ALAT&T - LOCALN/A7421SHEFFIELDNOCLLIKNOWN05/26/2005Prefix Type: WIRELESS
Switch Name: N/A
Switch Type: N/A
LATA: N/A
Tandem: N/A
Detailed Switch Info
256-320-7ALCOMCAST IP PHONE, LLCN/A318JSHEFFIELDNOCLLIKNOWN10/14/2013Prefix Type: WIRELESS
Switch Name: N/A
Switch Type: N/A
LATA: N/A
Tandem: N/A
Detailed Switch Info
256-320-8ALMETROPCS, INC.N/A5562SHEFFIELDHNVIAL03X8Y 09/26/2006Prefix Type: WIRELESS
Switch Name: N/A
Switch Type: N/A
LATA: N/A
Tandem: N/A
Detailed Switch Info
256-320-9ALPOWERTEL BIRMINGHAM LICENSES, INC.N/A7475SHEFFIELDNOCLLIKNOWNN/APrefix Type: WIRELESS
Switch Name: N/A
Switch Type: N/A
LATA: N/A
Tandem: N/A
Detailed Switch Info
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