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: SNFCCA13DS0

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
415-221 A San Francisco: Montrose-Evergreen DA CA 9740 PACIFIC BELL 722      
415-379 A San Francisco: Montrose-Evergreen DA CA 9740 PACIFIC BELL 722      
415-386 A San Francisco: Montrose-Evergreen DA CA 9740 PACIFIC BELL 722      
415-387 A San Francisco: Montrose-Evergreen DA CA 9740 PACIFIC BELL 722      
415-422 A San Francisco: Montrose-Evergreen DA CA 9740 PACIFIC BELL 722      
415-666 A San Francisco: Montrose-Evergreen DA CA 9740 PACIFIC BELL 722      
415-668 A San Francisco: Montrose-Evergreen DA CA 9740 PACIFIC BELL 722      
415-750 A San Francisco: Montrose-Evergreen DA CA 9740 PACIFIC BELL 722      
415-751 A San Francisco: Montrose-Evergreen DA CA 9740 PACIFIC BELL 722      
415-752 A San Francisco: Montrose-Evergreen DA CA 9740 PACIFIC BELL 722      
415-831 A San Francisco: Montrose-Evergreen DA CA 9740 PACIFIC BELL 722      
415-876 A San Francisco: Montrose-Evergreen DA CA 9740 PACIFIC BELL 722      
415-933 A San Francisco: Montrose-Evergreen DA CA 9740 PACIFIC BELL 722      

Last updated: Sun, 29 Sep 2019 14:17:11 UTC

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