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 2 Los Banos CA   6529 T-MOBILE USA, INC. 738   2025-05-08   
350-239 8 Los Banos CA   6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 738   2025-11-14   
350-239 9 Los Banos CA   6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 738   2025-11-28   

Last updated: Thu, 20 Nov 2025 13:34:34 UTC

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