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: SNFCCA01DS2

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
415-392 A San Francisco: Central DA CA 9740 PACIFIC BELL 722      
415-394 A San Francisco: Central DA CA 9740 PACIFIC BELL 722      
415-397 A San Francisco: Central DA CA 9740 PACIFIC BELL 722      
415-403 A San Francisco: Central DA CA 9740 PACIFIC BELL 722      
415-421 A San Francisco: Central DA CA 9740 PACIFIC BELL 722      
415-433 A San Francisco: Central DA CA 9740 PACIFIC BELL 722      
415-434 A San Francisco: Central DA CA 9740 PACIFIC BELL 722      
415-438 A San Francisco: Central DA CA 9740 PACIFIC BELL 722      
415-477 A San Francisco: Central DA CA 9740 PACIFIC BELL 722      
415-501 A San Francisco: Central DA CA 9740 PACIFIC BELL 722      
415-544 A San Francisco: Central DA CA 9740 PACIFIC BELL 722      
415-576 A San Francisco: Central DA CA 9740 PACIFIC BELL 722      
415-591 A San Francisco: Central DA CA 9740 PACIFIC BELL 722      
415-616 A San Francisco: Central DA CA 9740 PACIFIC BELL 722      
415-617 A San Francisco: Central DA CA 9740 PACIFIC BELL 722      
415-732 A San Francisco: Central DA CA 9740 PACIFIC BELL 722      
415-733 A San Francisco: Central DA CA 9740 PACIFIC BELL 722      
415-743 A San Francisco: Central DA CA 9740 PACIFIC BELL 722      
415-774 A San Francisco: Central DA CA 9740 PACIFIC BELL 722      
415-781 A San Francisco: Central DA CA 9740 PACIFIC BELL 722      
415-782 A San Francisco: Central DA CA 9740 PACIFIC BELL 722      
415-788 A San Francisco: Central DA CA 9740 PACIFIC BELL 722      
415-912 A San Francisco: Central DA CA 9740 PACIFIC BELL 722      
415-951 A San Francisco: Central DA CA 9740 PACIFIC BELL 722      
415-955 A San Francisco: Central DA CA 9740 PACIFIC BELL 722      
415-981 A San Francisco: Central DA CA 9740 PACIFIC BELL 722      
415-982 A San Francisco: Central DA CA 9740 PACIFIC BELL 722      
415-983 A San Francisco: Central DA CA 9740 PACIFIC BELL 722      
415-984 A San Francisco: Central DA CA 9740 PACIFIC BELL 722      
415-989 A San Francisco: Central DA CA 9740 PACIFIC BELL 722      

Last updated: Sun, 10 Nov 2019 13:49:34 UTC

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