Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
  • Effective date searches are available only for US area codes. Our sources for non-US NPA-NXX data do not provide this information.
  • If you want to search an entire area code regardless of activity, leave both the next and past days fields set to zero.

NPA: 256 [Rate centres in NPA 256] [Dial plan for NPA 256]

NXX: 312

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
256-312 A Gadsden AL   7475 POWERTEL BIRMINGHAM LICENSES, INC. 476      
256-312 0 Gadsden AL BRHMALMT94Z  7475 POWERTEL BIRMINGHAM LICENSES, INC. 476      
256-312 1 Gadsden AL BRHMALMT94Z  7475 POWERTEL BIRMINGHAM LICENSES, INC. 476      
256-312 2 Gadsden AL BRHMALMT94Z  7475 POWERTEL BIRMINGHAM LICENSES, INC. 476      
256-312 3 Gadsden AL BRHMALMT94Z  7475 POWERTEL BIRMINGHAM LICENSES, INC. 476      
256-312 4 Gadsden AL BRHMALMT94Z  7475 POWERTEL BIRMINGHAM LICENSES, INC. 476      
256-312 5 Gadsden AL GDSDAL04CM1  5562 METROPCS, INC. 476      
256-312 6 Gadsden AL   7475 POWERTEL BIRMINGHAM LICENSES, INC. 476      
256-312 7 Gadsden AL GDSDAL04CM1  5562 METROPCS, INC. 476      
256-312 8 Gadsden AL BRHMALHWXNX  318J COMCAST IP PHONE, LLC 476      
256-312 9 Gadsden AL   7475 POWERTEL BIRMINGHAM LICENSES, INC. 476      

Last updated: Wed, 20 Nov 2024 21:20:06 UTC

Sponsored by: Execulink Telecom

Like this site? We accept donations via PayPal.