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: 572

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
251-572 A Frisco City AL ATMRALXAXMD  604E ONVOY, LLC - AL 480      
251-572 0 Frisco City AL   604E ONVOY, LLC - AL 480   2019-09-05   
251-572 1 Frisco City AL   604E ONVOY, LLC - AL 480   2018-12-16   
251-572 2 Frisco City AL   604E ONVOY, LLC - AL 480   2018-12-16   
251-572 3 Frisco City AL   624H ONVOY SPECTRUM, LLC 480   2020-09-04   
251-572 4 Frisco City AL   604E ONVOY, LLC - AL 480   2020-11-28   
251-572 5 Frisco City AL   604E ONVOY, LLC - AL 480   2020-11-28   
251-572 6 Frisco City AL   604E ONVOY, LLC - AL 480   2023-06-09   
251-572 7 Frisco City AL   604E ONVOY, LLC - AL 480   2020-07-10   
251-572 8 Frisco City AL   073H TELNYX LLC 480   2020-05-01   
251-572 9 Frisco City AL   604E ONVOY, LLC - AL 480   2020-07-10   

Last updated: Thu, 01 Jan 2026 03:59:49 UTC

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