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: 780

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
251-780 A Grove Hill AL   624H ONVOY SPECTRUM, LLC 480   2025-08-24   
251-780 0 Grove Hill AL   145J TERRA NOVA TELECOM INC. 480   2025-08-25   
251-780 2 Grove Hill AL   624H ONVOY SPECTRUM, LLC 480   2025-08-24   

Last updated: Sun, 07 Dec 2025 22:02:11 UTC

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