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: 252

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
350-252 A Turlock CA   6010 NEW CINGULAR WIRELESS PCS, LLC 738   2025-12-05   
350-252 8 Turlock CA   6010 NEW CINGULAR WIRELESS PCS, LLC 738   2025-12-05   
350-252 9 Turlock CA   6010 NEW CINGULAR WIRELESS PCS, LLC 738   2025-12-05   

Last updated: Thu, 16 Oct 2025 03:04:18 UTC

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