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: 510

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
256-510 A Childersburg AL BRHMALHR4MD  6664 SPRINT SPECTRUM, L.P. 476      
256-510 0 Childersburg AL BRHMALHR4MD  5562 METROPCS, INC. 476   2005-05-26   
256-510 1 Childersburg AL BRHMALMT41Z  072F BANDWIDTH.COM CLEC, LLC - AL 476   2014-03-21   
256-510 2 Childersburg AL BRHMALHR4MD  5562 METROPCS, INC. 476      
256-510 3 Childersburg AL BRHMALMT32Z  604E ONVOY, LLC - AL 476   2016-06-27   
256-510 4 Childersburg AL BRHMALHR4MD  5562 METROPCS, INC. 476   2005-03-06   
256-510 5 Childersburg AL BRHMALMT41Z  072F BANDWIDTH.COM CLEC, LLC - AL 476   2015-05-07   
256-510 6 Childersburg AL BRHMALHR4MD  5562 METROPCS, INC. 476      
256-510 7 Childersburg AL BRHMALMT32Z  604E ONVOY, LLC - AL 476   2017-07-07   
256-510 8 Childersburg AL BRHMALMT41Z  072F BANDWIDTH.COM CLEC, LLC - AL 476   2015-11-01   
256-510 9 Childersburg AL BRHMALMT32Z  604E ONVOY, LLC - AL 476   2016-06-27   

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

Sponsored by: Callcentric - VoIP Internet phone service

Like this site? We accept donations via PayPal.