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: 506

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
251-506 A Fairhope AL MOBLALMTX0Y  478J NUSO, LLC 480   2025-06-13   
251-506 0 Fairhope AL   515J IP HORIZON LLC 480   2026-06-28   
251-506 1 Fairhope AL MOBLALMTX0Y  478J NUSO, LLC 480   2025-06-13   
251-506 2 Fairhope AL   604E ONVOY, LLC - AL 480   2026-10-03   
251-506 8 Fairhope AL   604E ONVOY, LLC - AL 480   2026-08-23   

Last updated: Sat, 10 Oct 2026 15:24:20 UTC

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