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: 251

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
350-251 A Oakdale CA SKTNCAGSGT0  6010 NEW CINGULAR WIRELESS PCS, LLC 738   2025-11-01   
350-251 0 Oakdale CA SKTNCA01XFY  649C ONVOY, LLC - CA 738   2026-04-05   
350-251 1 Oakdale CA SKTNCA01XFY  649C ONVOY, LLC - CA 738   2026-06-25   
350-251 8 Oakdale CA   6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 738   2026-08-04   
350-251 9 Oakdale CA SKTNCAGSGT0  6010 NEW CINGULAR WIRELESS PCS, LLC 738   2025-11-01   

Last updated: Sat, 01 Aug 2026 03:19:33 UTC

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