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.
  • If you want to search an entire area code regardless of activity, leave both the next and past days fields set to zero.

Switch: SNBBCAXFXVY

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
805-866 A Lompoc CA 649C ONVOY, LLC - CA 740      
805-894 A Santa Ynez CA 649C ONVOY, LLC - CA 740   2024-05-04   
805-960 A Los Alamos CA 649C ONVOY, LLC - CA 740      
820-823 A Santa Ynez CA 649C ONVOY, LLC - CA 740      

Last updated: Tue, 13 Jan 2026 21:50:02 UTC

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