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: 851

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
251-851 A Clear Springs AL   604E ONVOY, LLC - AL 44813   2025-06-23   
251-851 3 Clear Springs AL   593K MCC TELEPHONY LLC 44813   2025-07-27   
251-851 7 Clear Springs AL   604E ONVOY, LLC - AL 44813   2025-06-23   
251-851 8 Clear Springs AL   604E ONVOY, LLC - AL 44813   2025-06-23   
251-851 9 Clear Springs AL   604E ONVOY, LLC - AL 44813   2025-06-23   

Last updated: Fri, 25 Jul 2025 03:21:23 UTC

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