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: 600

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
256-600 A Jacksonville AL BRHMALMT41Z  072F BANDWIDTH.COM CLEC, LLC - AL 476      
256-600 0 Jacksonville AL BRHMALMT41Z  072F BANDWIDTH.COM CLEC, LLC - AL 476   2011-07-04   
256-600 1 Jacksonville AL BRHMALMT41Z  072F BANDWIDTH.COM CLEC, LLC - AL 476   2014-03-22   
256-600 2 Jacksonville AL BRHMALMT41Z  072F BANDWIDTH.COM CLEC, LLC - AL 476   2015-04-27   
256-600 3 Jacksonville AL ANTNAL074MD  5562 METROPCS, INC. 476   2014-11-06   
256-600 4 Jacksonville AL ANTNAL074MD  5562 METROPCS, INC. 476   2014-11-06   
256-600 5 Jacksonville AL ANTNAL074MD  5562 METROPCS, INC. 476   2013-06-15   
256-600 6 Jacksonville AL ANTNAL074MD  5562 METROPCS, INC. 476   2013-07-22   
256-600 7 Jacksonville AL BRHMALMT84Z  508J CENTURYLINK COMMUNICATIONS, LLC 476   2014-03-25   
256-600 8 Jacksonville AL BRHMALMT41Z  072F BANDWIDTH.COM CLEC, LLC - AL 476   2015-10-26   
256-600 9 Jacksonville AL BRHMALMT32Z  604E ONVOY, LLC - AL 476   2016-03-14   

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

Sponsored by: VoIP Much Phone Company

Like this site? We accept donations via PayPal.