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: 642

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
256-642 A Decatur AL HNVIALUNXSY  7475 POWERTEL BIRMINGHAM LICENSES, INC. 477      
256-642 0 Decatur AL HNVIAL18X4X  6804 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AL 477   2022-11-03   
256-642 1 Decatur AL HNVIALUNXSY  7475 POWERTEL BIRMINGHAM LICENSES, INC. 477      
256-642 2 Decatur AL HNVIALUNXIX  072F BANDWIDTH.COM CLEC, LLC - AL 477   2011-10-09   
256-642 3 Decatur AL HNVIALUNXSY  7475 POWERTEL BIRMINGHAM LICENSES, INC. 477   2007-05-13   
256-642 4 Decatur AL HNVIALODAMD  6214 NEW CINGULAR WIRELESS PCS, LLC - GA 477   2022-12-31   
256-642 5 Decatur AL HNVIALODAMD  6214 NEW CINGULAR WIRELESS PCS, LLC - GA 477   2011-12-10   
256-642 6 Decatur AL HNVIALUNXSY  7475 POWERTEL BIRMINGHAM LICENSES, INC. 477   2004-06-30   
256-642 7 Decatur AL HNVIALUNXIX  072F BANDWIDTH.COM CLEC, LLC - AL 477   2012-03-16   
256-642 8 Decatur AL HNVIALUNXSY  5562 METROPCS, INC. 477   2006-07-03   
256-642 9 Decatur AL HNVIALUNXSY  7475 POWERTEL BIRMINGHAM LICENSES, INC. 477      

Last updated: Sat, 05 Apr 2025 03:03:23 UTC

Sponsored by: Execulink Telecom

Like this site? We accept donations via PayPal.