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: 550

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
251-550 A Foley AL MOBLALAZXIZ  6581 CELLULAR SOUTH, INC. 480      

Last updated: Thu, 20 Nov 2025 13:34:34 UTC

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