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: 333

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
256-333 A Red Bay AL HNVIALUNX0X  5255 LEVEL 3 COMMUNICATIONS, LLC - AL 477      
256-333 0 Red Bay AL HNVIALUNXIX  072F BANDWIDTH.COM CLEC, LLC - AL 477   2008-11-30   
256-333 1 Red Bay AL HNVIALUNXIX  072F BANDWIDTH.COM CLEC, LLC - AL 477   2011-01-09   
256-333 2 Red Bay AL HNVIALUNXIX  072F BANDWIDTH.COM CLEC, LLC - AL 477   2011-04-04   
256-333 3 Red Bay AL HNVIALUNX0X  5255 LEVEL 3 COMMUNICATIONS, LLC - AL 477   2013-10-25   
256-333 4 Red Bay AL HNVIALUNX0X  5255 LEVEL 3 COMMUNICATIONS, LLC - AL 477   2004-12-20   
256-333 5 Red Bay AL HNVIALUNXIX  072F BANDWIDTH.COM CLEC, LLC - AL 477   2014-03-22   
256-333 6 Red Bay AL HNVIALUNXIX  072F BANDWIDTH.COM CLEC, LLC - AL 477   2015-06-26   
256-333 7 Red Bay AL HNVIALUNXJY  508J CENTURYLINK COMMUNICATIONS, LLC 477   2014-07-16   
256-333 8 Red Bay AL HNVIAL969MD  073H TELNYX LLC 477   2018-12-27   
256-333 9 Red Bay AL HNVIALUNX6X  604E ONVOY, LLC - AL 477   2019-03-11   

Last updated: Sun, 26 Jan 2025 15:59:20 UTC

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