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: SNFCCA21DS1

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NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
415-542 9 San Francisco: Central DA CA 9740 PACIFIC BELL 722      
415-545 A San Francisco: Central DA CA 9740 PACIFIC BELL 722      
415-545 0 San Francisco: Central DA CA 9740 PACIFIC BELL 722      
415-545 1 San Francisco: Central DA CA 9740 PACIFIC BELL 722      
415-545 2 San Francisco: Central DA CA 9740 PACIFIC BELL 722      
415-545 3 San Francisco: Central DA CA 9740 PACIFIC BELL 722      
415-545 4 San Francisco: Central DA CA 9740 PACIFIC BELL 722      
415-545 5 San Francisco: Central DA CA 9740 PACIFIC BELL 722      
415-545 6 San Francisco: Central DA CA 9740 PACIFIC BELL 722      
415-545 7 San Francisco: Central DA CA 9740 PACIFIC BELL 722      
415-545 9 San Francisco: Central DA CA 9740 PACIFIC BELL 722      
415-546 A San Francisco: Central DA CA 9740 PACIFIC BELL 722      
415-547 A San Francisco: Central DA CA 9740 PACIFIC BELL 722      
415-547 1 San Francisco: Central DA CA 9740 PACIFIC BELL 722      
415-547 2 San Francisco: Central DA CA 9740 PACIFIC BELL 722      
415-547 3 San Francisco: Central DA CA 9740 PACIFIC BELL 722      
415-547 4 San Francisco: Central DA CA 9740 PACIFIC BELL 722      
415-547 5 San Francisco: Central DA CA 9740 PACIFIC BELL 722      
415-547 6 San Francisco: Central DA CA 9740 PACIFIC BELL 722      
415-547 7 San Francisco: Central DA CA 9740 PACIFIC BELL 722      
415-547 8 San Francisco: Central DA CA 9740 PACIFIC BELL 722      
415-615 A San Francisco: Central DA CA 9740 PACIFIC BELL 722      
415-615 0 San Francisco: Central DA CA 9740 PACIFIC BELL 722      
415-615 1 San Francisco: Central DA CA 9740 PACIFIC BELL 722      
415-615 3 San Francisco: Central DA CA 9740 PACIFIC BELL 722      
415-615 4 San Francisco: Central DA CA 9740 PACIFIC BELL 722      
415-615 5 San Francisco: Central DA CA 9740 PACIFIC BELL 722      
415-615 6 San Francisco: Central DA CA 9740 PACIFIC BELL 722      
415-615 9 San Francisco: Central DA CA 9740 PACIFIC BELL 722      
415-624 A San Francisco: Central DA CA 9740 PACIFIC BELL 722      
415-624 0 San Francisco: Central DA CA 9740 PACIFIC BELL 722      
415-624 1 San Francisco: Central DA CA 9740 PACIFIC BELL 722      
415-624 2 San Francisco: Central DA CA 9740 PACIFIC BELL 722      
415-644 A San Francisco: Central DA CA 9740 PACIFIC BELL 722      
415-644 0 San Francisco: Central DA CA 9740 PACIFIC BELL 722      
415-644 1 San Francisco: Central DA CA 9740 PACIFIC BELL 722      
415-644 2 San Francisco: Central DA CA 9740 PACIFIC BELL 722      
415-644 3 San Francisco: Central DA CA 9740 PACIFIC BELL 722      
415-644 6 San Francisco: Central DA CA 9740 PACIFIC BELL 722      
415-644 7 San Francisco: Central DA CA 9740 PACIFIC BELL 722      
415-644 9 San Francisco: Central DA CA 9740 PACIFIC BELL 722      
415-764 A San Francisco: Central DA CA 9740 PACIFIC BELL 722      
415-764 0 San Francisco: Central DA CA 9740 PACIFIC BELL 722      
415-764 1 San Francisco: Central DA CA 9740 PACIFIC BELL 722      
415-764 2 San Francisco: Central DA CA 9740 PACIFIC BELL 722      
415-764 3 San Francisco: Central DA CA 9740 PACIFIC BELL 722      
415-764 4 San Francisco: Central DA CA 9740 PACIFIC BELL 722      
415-764 9 San Francisco: Central DA CA 9740 PACIFIC BELL 722      
415-768 A San Francisco: Central DA CA 9740 PACIFIC BELL 722      
415-777 A San Francisco: Central DA CA 9740 PACIFIC BELL 722      

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Last updated: Tue, 16 Apr 2024 01:38:01 UTC

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