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: SNFCCA21DS0

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NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
415-817 4 San Francisco: Central DA CA 9740 PACIFIC BELL 722      
415-817 5 San Francisco: Central DA CA 9740 PACIFIC BELL 722      
415-817 6 San Francisco: Central DA CA 9740 PACIFIC BELL 722      
415-817 7 San Francisco: Central DA CA 9740 PACIFIC BELL 722      
415-817 8 San Francisco: Central DA CA 9740 PACIFIC BELL 722      
415-896 A San Francisco: Central DA CA 9740 PACIFIC BELL 722      
415-896 0 San Francisco: Central DA CA 9740 PACIFIC BELL 722      
415-896 1 San Francisco: Central DA CA 9740 PACIFIC BELL 722      
415-896 2 San Francisco: Central DA CA 9740 PACIFIC BELL 722      
415-896 3 San Francisco: Central DA CA 9740 PACIFIC BELL 722      
415-896 5 San Francisco: Central DA CA 9740 PACIFIC BELL 722      
415-896 6 San Francisco: Central DA CA 9740 PACIFIC BELL 722      
415-896 7 San Francisco: Central DA CA 9740 PACIFIC BELL 722      
415-896 8 San Francisco: Central DA CA 9740 PACIFIC BELL 722      
415-896 9 San Francisco: Central DA CA 9740 PACIFIC BELL 722      
415-904 A San Francisco: Central DA CA 9740 PACIFIC BELL 722      
415-905 A San Francisco: Central DA CA 9740 PACIFIC BELL 722      
415-905 1 San Francisco: Central DA CA 9740 PACIFIC BELL 722      
415-905 2 San Francisco: Central DA CA 9740 PACIFIC BELL 722      
415-905 3 San Francisco: Central DA CA 9740 PACIFIC BELL 722      
415-905 4 San Francisco: Central DA CA 9740 PACIFIC BELL 722      
415-905 5 San Francisco: Central DA CA 9740 PACIFIC BELL 722      
415-905 6 San Francisco: Central DA CA 9740 PACIFIC BELL 722      
415-905 7 San Francisco: Central DA CA 9740 PACIFIC BELL 722      
415-905 8 San Francisco: Central DA CA 9740 PACIFIC BELL 722      
415-905 9 San Francisco: Central DA CA 9740 PACIFIC BELL 722      
415-908 A San Francisco: Central DA CA 9740 PACIFIC BELL 722      
415-908 0 San Francisco: Central DA CA 9740 PACIFIC BELL 722      
415-908 2 San Francisco: Central DA CA 9740 PACIFIC BELL 722      
415-908 3 San Francisco: Central DA CA 9740 PACIFIC BELL 722      
415-908 4 San Francisco: Central DA CA 9740 PACIFIC BELL 722      
415-908 6 San Francisco: Central DA CA 9740 PACIFIC BELL 722      
415-908 7 San Francisco: Central DA CA 9740 PACIFIC BELL 722      
415-908 8 San Francisco: Central DA CA 9740 PACIFIC BELL 722      
415-908 9 San Francisco: Central DA CA 9740 PACIFIC BELL 722      
415-932 A San Francisco: Central DA CA 9740 PACIFIC BELL 722      
415-932 1 San Francisco: Central DA CA 9740 PACIFIC BELL 722      
415-932 2 San Francisco: Central DA CA 9740 PACIFIC BELL 722      
415-932 3 San Francisco: Central DA CA 9740 PACIFIC BELL 722      
415-932 4 San Francisco: Central DA CA 9740 PACIFIC BELL 722      
415-932 5 San Francisco: Central DA CA 9740 PACIFIC BELL 722      
415-932 7 San Francisco: Central DA CA 9740 PACIFIC BELL 722      
415-947 A San Francisco: Central DA CA 9740 PACIFIC BELL 722      
415-947 0 San Francisco: Central DA CA 9740 PACIFIC BELL 722      
415-947 1 San Francisco: Central DA CA 9740 PACIFIC BELL 722      
415-947 2 San Francisco: Central DA CA 9740 PACIFIC BELL 722      
415-947 3 San Francisco: Central DA CA 9740 PACIFIC BELL 722      
415-947 4 San Francisco: Central DA CA 9740 PACIFIC BELL 722      
415-947 5 San Francisco: Central DA CA 9740 PACIFIC BELL 722      
415-947 6 San Francisco: Central DA CA 9740 PACIFIC BELL 722      

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Last updated: Thu, 16 Jul 2026 02:21:55 UTC

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