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.
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Last updated: Thu, 17 Apr 2014 10:04:41 UTC

How to use this page

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

NXX: 640

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA Eff date Disc date Map
256-640 A Arab AL 6664 SPRINT SPECTRUM L.P. [link] 476 map
256-640 0 Arab AL 7475 POWERTEL BIRMINGHAM LICENSES, INC. [link] 476 2009-10-24
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 5 Arab AL 6804 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AL [link] 476 2010-07-20
256-640 6 Arab AL 6804 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AL [link] 476 2004-08-30
256-640 7 Arab AL 6804 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AL [link] 476 2004-08-30
256-640 9 Arab AL 6804 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AL [link] 476 2011-11-08



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