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
415-778 A San Francisco: Central DA CA 9740 PACIFIC BELL 722      
415-836 A San Francisco: Central DA CA 9740 PACIFIC BELL 722      
415-856 A San Francisco: Central DA CA 9740 PACIFIC BELL 722      
415-856 0 San Francisco: Central DA CA 9740 PACIFIC BELL 722      
415-856 1 San Francisco: Central DA CA 9740 PACIFIC BELL 722      
415-856 2 San Francisco: Central DA CA 9740 PACIFIC BELL 722      
415-856 3 San Francisco: Central DA CA 9740 PACIFIC BELL 722      
415-856 4 San Francisco: Central DA CA 9740 PACIFIC BELL 722      
415-856 5 San Francisco: Central DA CA 9740 PACIFIC BELL 722      
415-856 7 San Francisco: Central DA CA 9740 PACIFIC BELL 722      
415-856 8 San Francisco: Central DA CA 9740 PACIFIC BELL 722      
415-882 A San Francisco: Central DA CA 9740 PACIFIC BELL 722      
415-882 0 San Francisco: Central DA CA 9740 PACIFIC BELL 722      
415-882 1 San Francisco: Central DA CA 9740 PACIFIC BELL 722      
415-882 2 San Francisco: Central DA CA 9740 PACIFIC BELL 722      
415-882 3 San Francisco: Central DA CA 9740 PACIFIC BELL 722      
415-882 4 San Francisco: Central DA CA 9740 PACIFIC BELL 722      
415-882 5 San Francisco: Central DA CA 9740 PACIFIC BELL 722      
415-882 7 San Francisco: Central DA CA 9740 PACIFIC BELL 722      
415-882 8 San Francisco: Central DA CA 9740 PACIFIC BELL 722      
415-882 9 San Francisco: Central DA CA 9740 PACIFIC BELL 722      
415-894 A San Francisco: Central DA CA 9740 PACIFIC BELL 722      
415-894 1 San Francisco: Central DA CA 9740 PACIFIC BELL 722      
415-894 3 San Francisco: Central DA CA 9740 PACIFIC BELL 722      
415-894 4 San Francisco: Central DA CA 9740 PACIFIC BELL 722      
415-894 6 San Francisco: Central DA CA 9740 PACIFIC BELL 722      
415-894 8 San Francisco: Central DA CA 9740 PACIFIC BELL 722      
415-957 A San Francisco: Central DA CA 9740 PACIFIC BELL 722      
415-998 A San Francisco: Central DA CA 9740 PACIFIC BELL 722      
415-998 8 San Francisco: Central DA CA 9740 PACIFIC BELL 722      

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Last updated: Wed, 20 Nov 2024 21:20:06 UTC

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