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: 242

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
256-242 A Section AL HNVIALODAMD  6214 NEW CINGULAR WIRELESS PCS, LLC - GA 477      
256-242 0 Section AL   604E ONVOY, LLC - AL 477   2019-01-18   
256-242 1 Section AL   604E ONVOY, LLC - AL 477   2019-01-18   
256-242 2 Section AL   604E ONVOY, LLC - AL 477   2021-09-16   
256-242 3 Section AL   6214 NEW CINGULAR WIRELESS PCS, LLC - GA 477      
256-242 4 Section AL   6214 NEW CINGULAR WIRELESS PCS, LLC - GA 477      
256-242 5 Section AL   604E ONVOY, LLC - AL 477   2019-09-05   
256-242 6 Section AL   604E ONVOY, LLC - AL 477   2018-09-23   
256-242 7 Section AL   5255 LEVEL 3 COMMUNICATIONS, LLC - AL 477   2013-10-11   
256-242 8 Section AL   604E ONVOY, LLC - AL 477   2019-03-29   
256-242 9 Section AL   604E ONVOY, LLC - AL 477   2019-03-29   

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

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