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: SNFCCA05DS0

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NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
415-920 9 San Francisco: Central DA CA 9740 PACIFIC BELL 722      
415-970 A San Francisco: Central DA CA 9740 PACIFIC BELL 722      
415-970 0 San Francisco: Central DA CA 9740 PACIFIC BELL 722      
415-970 1 San Francisco: Central DA CA 9740 PACIFIC BELL 722      
415-970 2 San Francisco: Central DA CA 9740 PACIFIC BELL 722      
415-970 3 San Francisco: Central DA CA 9740 PACIFIC BELL 722      
415-970 4 San Francisco: Central DA CA 9740 PACIFIC BELL 722      
415-970 7 San Francisco: Central DA CA 9740 PACIFIC BELL 722      
415-970 8 San Francisco: Central DA CA 9740 PACIFIC BELL 722      
415-970 9 San Francisco: Central DA CA 9740 PACIFIC BELL 722      
628-206 A San Francisco: Central DA CA 9740 PACIFIC BELL 722      
628-206 0 San Francisco: Central DA CA 9740 PACIFIC BELL 722   2015-07-02   
628-206 1 San Francisco: Central DA CA 9740 PACIFIC BELL 722   2015-07-02   
628-206 2 San Francisco: Central DA CA 9740 PACIFIC BELL 722   2015-07-02   
628-206 3 San Francisco: Central DA CA 9740 PACIFIC BELL 722   2015-07-02   
628-206 4 San Francisco: Central DA CA 9740 PACIFIC BELL 722   2015-07-02   
628-206 5 San Francisco: Central DA CA 9740 PACIFIC BELL 722   2015-07-02   
628-206 6 San Francisco: Central DA CA 9740 PACIFIC BELL 722   2015-07-02   
628-206 7 San Francisco: Central DA CA 9740 PACIFIC BELL 722   2015-07-02   
628-206 8 San Francisco: Central DA CA 9740 PACIFIC BELL 722   2015-07-02   
628-206 9 San Francisco: Central DA CA 9740 PACIFIC BELL 722   2015-07-02   

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

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