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

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NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
415-477 9 San Francisco: Central DA CA 9740 PACIFIC BELL 722      
415-501 A San Francisco: Central DA CA 9740 PACIFIC BELL 722      
415-501 1 San Francisco: Central DA CA 9740 PACIFIC BELL 722      
415-501 2 San Francisco: Central DA CA 9740 PACIFIC BELL 722      
415-501 3 San Francisco: Central DA CA 9740 PACIFIC BELL 722      
415-501 4 San Francisco: Central DA CA 9740 PACIFIC BELL 722      
415-501 5 San Francisco: Central DA CA 9740 PACIFIC BELL 722      
415-501 6 San Francisco: Central DA CA 9740 PACIFIC BELL 722      
415-501 7 San Francisco: Central DA CA 9740 PACIFIC BELL 722      
415-501 8 San Francisco: Central DA CA 9740 PACIFIC BELL 722      
415-544 A San Francisco: Central DA CA 9740 PACIFIC BELL 722      
415-544 0 San Francisco: Central DA CA 9740 PACIFIC BELL 722      
415-544 1 San Francisco: Central DA CA 9740 PACIFIC BELL 722      
415-544 2 San Francisco: Central DA CA 9740 PACIFIC BELL 722      
415-544 3 San Francisco: Central DA CA 9740 PACIFIC BELL 722      
415-544 4 San Francisco: Central DA CA 9740 PACIFIC BELL 722      
415-544 6 San Francisco: Central DA CA 9740 PACIFIC BELL 722      
415-544 8 San Francisco: Central DA CA 9740 PACIFIC BELL 722      
415-544 9 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      
415-617 0 San Francisco: Central DA CA 9740 PACIFIC BELL 722      
415-617 1 San Francisco: Central DA CA 9740 PACIFIC BELL 722      
415-617 2 San Francisco: Central DA CA 9740 PACIFIC BELL 722      
415-617 3 San Francisco: Central DA CA 9740 PACIFIC BELL 722      
415-617 4 San Francisco: Central DA CA 9740 PACIFIC BELL 722      
415-617 6 San Francisco: Central DA CA 9740 PACIFIC BELL 722      
415-617 7 San Francisco: Central DA CA 9740 PACIFIC BELL 722      
415-617 8 San Francisco: Central DA CA 9740 PACIFIC BELL 722      
415-732 A San Francisco: Central DA CA 9740 PACIFIC BELL 722      
415-732 0 San Francisco: Central DA CA 9740 PACIFIC BELL 722      
415-732 1 San Francisco: Central DA CA 9740 PACIFIC BELL 722      
415-732 2 San Francisco: Central DA CA 9740 PACIFIC BELL 722      
415-732 3 San Francisco: Central DA CA 9740 PACIFIC BELL 722      
415-732 4 San Francisco: Central DA CA 9740 PACIFIC BELL 722      
415-732 5 San Francisco: Central DA CA 9740 PACIFIC BELL 722      
415-732 6 San Francisco: Central DA CA 9740 PACIFIC BELL 722      
415-732 7 San Francisco: Central DA CA 9740 PACIFIC BELL 722      
415-732 8 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      
415-743 1 San Francisco: Central DA CA 9740 PACIFIC BELL 722      
415-743 2 San Francisco: Central DA CA 9740 PACIFIC BELL 722      
415-743 3 San Francisco: Central DA CA 9740 PACIFIC BELL 722      
415-743 4 San Francisco: Central DA CA 9740 PACIFIC BELL 722      
415-743 5 San Francisco: Central DA CA 9740 PACIFIC BELL 722      
415-743 6 San Francisco: Central DA CA 9740 PACIFIC BELL 722      
415-743 7 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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