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: 528

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
251-528 A Mobile AL   6214 NEW CINGULAR WIRELESS PCS, LLC - GA 480   2025-07-27   
251-528 3 Mobile AL   321J HD CARRIER LLC 480   2025-07-28   
251-528 4 Mobile AL   321J HD CARRIER LLC 480   2025-07-28   
251-528 5 Mobile AL   321J HD CARRIER LLC 480   2025-07-28   
251-528 7 Mobile AL   6214 NEW CINGULAR WIRELESS PCS, LLC - GA 480   2025-07-27   
251-528 8 Mobile AL   6214 NEW CINGULAR WIRELESS PCS, LLC - GA 480   2025-07-27   
251-528 9 Mobile AL   6214 NEW CINGULAR WIRELESS PCS, LLC - GA 480   2025-07-27   

Last updated: Thu, 16 Oct 2025 03:04:18 UTC

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