Local Calling Guide

Area code/prefix search

Search by area code/prefix (NPA/NXX) or OCN

  • 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.

Last updated: Sun, 16 Jun 2013 02:49:06 UTC

How to use this page

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

NXX: 640

NPA-NXX-X Rate Centre Region Switch OCN LATA Eff date Disc date Map
256-640 Arab AL ARABALAP0MD 6232 NEXTEL COMMUNICATIONS, INC. [link] 476 2004-08-30 map
256-640-0 Arab AL 7475 POWERTEL BIRMINGHAM LICENSES, INC. [link] 476 2009-10-24 map
256-640-1 Arab AL 6804 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AL [link] 476 2009-06-26
256-640-2 Arab AL 7475 POWERTEL BIRMINGHAM LICENSES, INC. [link] 476 2009-10-24
256-640-3 Arab AL 6804 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AL [link] 476 2010-11-20
256-640-4 Arab AL 6804 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AL [link] 476 2013-02-10
256-640-5 Arab AL 6804 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AL [link] 476 2010-07-20
256-640-6 Arab AL 6232 NEXTEL COMMUNICATIONS, INC. [link] 476 2004-08-30
256-640-7 Arab AL 6232 NEXTEL COMMUNICATIONS, INC. [link] 476 2004-08-30
256-640-9 Arab AL 6804 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AL [link] 476 2011-11-08


Sponsored by: LES.NET