Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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NPA: 256 [Rate centres in NPA 256] [Dial plan for NPA 256]

NXX: 305

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
256-305 A Attalla AL BRHMALMT92Z  7475 POWERTEL BIRMINGHAM LICENSES, INC. 476      
256-305 0 Attalla AL   792K CHARTER IP ENABLED SERVICES, LLC 476   2007-10-18   
256-305 1 Attalla AL   604E ONVOY, LLC - AL 476   2016-03-04   
256-305 2 Attalla AL   5255 LEVEL 3 COMMUNICATIONS, LLC - AL 476   2004-11-11   
256-305 3 Attalla AL   7475 POWERTEL BIRMINGHAM LICENSES, INC. 476      
256-305 4 Attalla AL   604E ONVOY, LLC - AL 476   2016-03-04   
256-305 5 Attalla AL   318J COMCAST IP PHONE, LLC 476   2015-09-02   
256-305 6 Attalla AL   604E ONVOY, LLC - AL 476   2017-01-09   
256-305 7 Attalla AL   073H TELNYX LLC 476   2017-09-04   
256-305 8 Attalla AL   145J TERRA NOVA TELECOM INC. 476   2022-11-03   
256-305 9 Attalla AL   145J TERRA NOVA TELECOM INC. 476   2023-11-15   

Last updated: Thu, 29 Jan 2026 14:35:03 UTC

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