Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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NPA: 251 [Rate centres in NPA 251] [Dial plan for NPA 251]

NXX: 810

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
251-810 A Grand Bay AL MOBLALAZX6Z  604E ONVOY, LLC - AL 480      
251-810 0 Grand Bay AL   604E ONVOY, LLC - AL 480   2020-12-02   
251-810 1 Grand Bay AL   604E ONVOY, LLC - AL 480   2020-12-02   
251-810 2 Grand Bay AL   624H ONVOY SPECTRUM, LLC 480   2023-04-29   
251-810 4 Grand Bay AL   072F BANDWIDTH.COM CLEC, LLC - AL 480   2021-07-15   
251-810 5 Grand Bay AL   604E ONVOY, LLC - AL 480   2021-02-17   
251-810 6 Grand Bay AL   8271 TELEPORT COMMUNICATIONS AMERICA, LLC - AL 480   2020-11-11   
251-810 7 Grand Bay AL   604E ONVOY, LLC - AL 480   2021-02-17   
251-810 8 Grand Bay AL   604E ONVOY, LLC - AL 480   2020-08-14   
251-810 9 Grand Bay AL   604E ONVOY, LLC - AL 480   2020-08-14   

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

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