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: 650 [Rate centres in NPA 650] [Dial plan for NPA 650]

NXX: 768

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
650-768 A Los Altos CA   829J PAETEC ITEL, LLC 722   2026-02-01   
650-768 0 Los Altos CA   649C ONVOY, LLC - CA 722   2026-05-09   
650-768 5 Los Altos CA   829J PAETEC ITEL, LLC 722   2026-02-01   

Last updated: Sat, 02 May 2026 12:20:53 UTC

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