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: 400

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
256-400 A Albertville AL GDSDAL043MD  7475 POWERTEL BIRMINGHAM LICENSES, INC. 476      
256-400 0 Albertville AL BRHMALMT41Z  072F BANDWIDTH.COM CLEC, LLC - AL 476   2015-06-26   
256-400 1 Albertville AL BRHMAL16X8X  5255 LEVEL 3 COMMUNICATIONS, LLC - AL 476   2007-03-15   
256-400 2 Albertville AL BRHMAL16X8X  5255 LEVEL 3 COMMUNICATIONS, LLC - AL 476   2011-04-02   
256-400 3 Albertville AL BRHMALMT41Z  072F BANDWIDTH.COM CLEC, LLC - AL 476   2014-06-14   
256-400 4 Albertville AL BRHMALMT41Z  072F BANDWIDTH.COM CLEC, LLC - AL 476   2015-02-19   
256-400 5 Albertville AL BRHMALMT41Z  072F BANDWIDTH.COM CLEC, LLC - AL 476   2016-07-14   
256-400 6 Albertville AL   7475 POWERTEL BIRMINGHAM LICENSES, INC. 476   2024-01-18   
256-400 7 Albertville AL   7475 POWERTEL BIRMINGHAM LICENSES, INC. 476   2024-01-18   
256-400 8 Albertville AL   7475 POWERTEL BIRMINGHAM LICENSES, INC. 476   2006-10-30   
256-400 9 Albertville AL GDSDAL043MD  7475 POWERTEL BIRMINGHAM LICENSES, INC. 476   2005-03-09   

Last updated: Tue, 16 Apr 2024 01:38:01 UTC

Sponsored by: FiberConX Communications Ltd.

Like this site? We accept donations via PayPal.