Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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NPA: 256 [Rate centres in NPA 256] [Dial plan for NPA 256]

NXX: 297

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
256-297 A Cullman AL HNVIALUNXSY  5562 METROPCS, INC. 477      
256-297 0 Cullman AL   7475 POWERTEL BIRMINGHAM LICENSES, INC. 477      
256-297 1 Cullman AL   072F BANDWIDTH.COM CLEC, LLC - AL 477   2008-11-30   
256-297 2 Cullman AL   5255 LEVEL 3 COMMUNICATIONS, LLC - AL 477   2007-04-25   
256-297 3 Cullman AL   072F BANDWIDTH.COM CLEC, LLC - AL 477   2010-06-17   
256-297 4 Cullman AL   604E ONVOY, LLC - AL 477   2017-07-07   
256-297 5 Cullman AL   5562 METROPCS, INC. 477   2016-06-03   
256-297 6 Cullman AL   516C AT&T CORP. 477   2016-11-03   
256-297 7 Cullman AL   072F BANDWIDTH.COM CLEC, LLC - AL 477   2015-10-18   
256-297 8 Cullman AL   604E ONVOY, LLC - AL 477   2016-12-23   
256-297 9 Cullman AL   6214 NEW CINGULAR WIRELESS PCS, LLC - GA 477   2020-01-17   

Last updated: Thu, 29 Jan 2026 14:35:03 UTC

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