Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
  • Effective date searches are available only for US area codes. Our sources for non-US NPA-NXX data do not provide this information.
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NPA: 350 [Rate centres in NPA 350] [Dial plan for NPA 350]

NXX: 223

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
350-223 A Merced CA SKTNCA01XFY  649C ONVOY, LLC - CA 738   2024-07-05   
350-223 0 Merced CA SKTNCA01XFY  649C ONVOY, LLC - CA 738   2024-07-05   
350-223 1 Merced CA SKTNCA01XFY  649C ONVOY, LLC - CA 738   2024-07-15   
350-223 3 Merced CA SKTNCACZ7MD  145J TERRA NOVA TELECOM INC. 738   2024-07-06   
350-223 8 Merced CA   6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 738   2025-02-06   
350-223 9 Merced CA   6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 738   2025-02-16   

Last updated: Sun, 26 Jan 2025 15:59:20 UTC

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