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: 239

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
350-239 A Los Banos CA   649C ONVOY, LLC - CA 738   2025-05-04   
350-239 0 Los Banos CA   649C ONVOY, LLC - CA 738   2025-05-04   
350-239 1 Los Banos CA   649C ONVOY, LLC - CA 738   2026-04-05   
350-239 2 Los Banos CA   6529 T-MOBILE USA, INC. 738   2025-05-08   
350-239 3 Los Banos CA   649C ONVOY, LLC - CA 738   2026-05-30   
350-239 4 Los Banos CA   981E BANDWIDTH.COM CLEC, LLC - CA 738   2026-06-08   
350-239 8 Los Banos CA   649C ONVOY, LLC - CA 738   2026-08-01   
350-239 9 Los Banos CA   649C ONVOY, LLC - CA 738   2026-08-01   

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

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