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.

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NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
805-977 A San Miguel CA 965H FRACTEL, LLC 740      
820-336 A Guadalupe CA 965H FRACTEL, LLC 740      
820-346 A Arroyo Grande CA 965H FRACTEL, LLC 740      
820-500 A Gaviota CA 965H FRACTEL, LLC 740      
820-587 A Santa Barbara CA 965H FRACTEL, LLC 740      
820-600 A Pismo Beach CA 965H FRACTEL, LLC 740      
820-666 A San Luis Obispo CA 965H FRACTEL, LLC 740      
820-758 A Santa Barbara CA 965H FRACTEL, LLC 740      
820-786 A Atascadero CA 965H FRACTEL, LLC 740      
820-800 A Cayucos CA 965H FRACTEL, LLC 740      
820-899 A Santa Maria CA 965H FRACTEL, LLC 740      
820-900 A Bradley CA 965H FRACTEL, LLC 740      
820-946 A Santa Maria CA 965H FRACTEL, LLC 740      

Last updated: Thu, 29 Jan 2026 14:35:03 UTC

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