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-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
415-324 A Sausalito CA 7718 LEVEL 3 TELECOM OF CALIFORNIA, LP - CA 722      
415-325 A San Francisco: Juniper DA CA 7718 LEVEL 3 TELECOM OF CALIFORNIA, LP - CA 722      
415-418 A San Francisco: Montrose-Evergreen DA CA 7718 LEVEL 3 TELECOM OF CALIFORNIA, LP - CA 722      
415-489 A San Francisco: Central DA CA 7718 LEVEL 3 TELECOM OF CALIFORNIA, LP - CA 722      
415-493 A Novato CA 7718 LEVEL 3 TELECOM OF CALIFORNIA, LP - CA 722      
415-496 A Corte Madera CA 7718 LEVEL 3 TELECOM OF CALIFORNIA, LP - CA 722      
415-524 A San Rafael CA 7718 LEVEL 3 TELECOM OF CALIFORNIA, LP - CA 722      
415-691 A Belvedere CA 7718 LEVEL 3 TELECOM OF CALIFORNIA, LP - CA 722      
415-787 A Point Reyes CA 7718 LEVEL 3 TELECOM OF CALIFORNIA, LP - CA 722      
415-997 A Nicasio CA 7718 LEVEL 3 TELECOM OF CALIFORNIA, LP - CA 722      
650-204 A Millbrae CA 7718 LEVEL 3 TELECOM OF CALIFORNIA, LP - CA 722      
650-276 A Half Moon Bay CA 7718 LEVEL 3 TELECOM OF CALIFORNIA, LP - CA 722      
650-297 A Pescadero CA 7718 LEVEL 3 TELECOM OF CALIFORNIA, LP - CA 722      
650-391 A Palo Alto CA 7718 LEVEL 3 TELECOM OF CALIFORNIA, LP - CA 722      
650-392 A South San Francisco CA 7718 LEVEL 3 TELECOM OF CALIFORNIA, LP - CA 722      
650-393 A San Mateo CA 7718 LEVEL 3 TELECOM OF CALIFORNIA, LP - CA 722      
650-394 A San Carlos-Belmont CA 7718 LEVEL 3 TELECOM OF CALIFORNIA, LP - CA 722      
650-395 A Redwood City CA 7718 LEVEL 3 TELECOM OF CALIFORNIA, LP - CA 722      
831-703 A Boulder Creek CA 7718 LEVEL 3 TELECOM OF CALIFORNIA, LP - CA 722      
831-706 A Santa Cruz CA 7718 LEVEL 3 TELECOM OF CALIFORNIA, LP - CA 722      
831-707 A Watsonville CA 7718 LEVEL 3 TELECOM OF CALIFORNIA, LP - CA 722      

Last updated: Wed, 05 Feb 2020 02:15:44 UTC

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