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: 341 [Rate centres in NPA 341] [Dial plan for NPA 341]

NXX: 268

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
341-268 A Fremont-Newark: Oliver DA CA   649C ONVOY, LLC - CA 722   2026-09-18   
341-268 0 Fremont-Newark: Oliver DA CA   649C ONVOY, LLC - CA 722   2026-09-18   
341-268 1 Fremont-Newark: Oliver DA CA   649C ONVOY, LLC - CA 722   2026-09-18   
341-268 7 Fremont-Newark: Oliver DA CA   114J EXIANT COMMUNICATIONS LLC 722   2026-09-21   
341-268 8 Fremont-Newark: Oliver DA CA   114J EXIANT COMMUNICATIONS LLC 722   2026-09-21   
341-268 9 Fremont-Newark: Oliver DA CA   114J EXIANT COMMUNICATIONS LLC 722   2026-09-21   

Last updated: Tue, 01 Sep 2026 00:40:05 UTC

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