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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Switch: SNLOCA01XOY

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
805-269 A San Luis Obispo CA 671J U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS 740      
805-270 A Arroyo Grande CA 671J U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS 740      
805-321 A Santa Margarita CA 671J U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS 740      
805-369 A Paso Robles CA 671J U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS 740      
805-538 A Atascadero CA 671J U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS 740      
805-722 A Santa Barbara CA 671J U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS 740      
805-792 A Atascadero CA 671J U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS 740      
805-809 A Arroyo Grande CA 671J U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS 740      
805-872 A Paso Robles CA 671J U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS 740      
805-903 A San Luis Obispo CA 671J U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS 740      
820-208 A Atascadero CA 671J U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS 740      

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

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