Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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NPA: 357 [Rate centres in NPA 357] [Dial plan for NPA 357]

NXX: 777

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
357-777 A Hanford CA   252F WIDE VOICE, LLC - CA 728   2026-11-13   
357-777 7 Hanford CA   252F WIDE VOICE, LLC - CA 728   2026-11-13   
357-777 8 Hanford CA   252F WIDE VOICE, LLC - CA 728   2026-11-13   

Last updated: Tue, 29 Sep 2026 03:00:13 UTC

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