Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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NPA: 350 [Rate centres in NPA 350] [Dial plan for NPA 350]

NXX: 258

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
350-258 A Atwater CA   649C ONVOY, LLC - CA 738   2026-08-21   
350-258 0 Atwater CA   649C ONVOY, LLC - CA 738   2026-08-21   
350-258 1 Atwater CA   649C ONVOY, LLC - CA 738   2026-08-21   

Last updated: Fri, 10 Jul 2026 02:55:48 UTC

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