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: COLACA01DS0

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NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
650-301 A San Francisco: Juniper DA CA 9740 PACIFIC BELL 722      
650-466 A San Francisco: Juniper DA CA 9740 PACIFIC BELL 722      
650-466 1 San Francisco: Juniper DA CA 9740 PACIFIC BELL 722   2003-02-03   
650-466 2 San Francisco: Juniper DA CA 9740 PACIFIC BELL 722   2003-02-03   
650-466 3 San Francisco: Juniper DA CA 9740 PACIFIC BELL 722   2003-02-03   
650-466 4 San Francisco: Juniper DA CA 9740 PACIFIC BELL 722   2003-02-03   
650-466 5 San Francisco: Juniper DA CA 9740 PACIFIC BELL 722   2003-02-03   
650-550 A San Francisco: Juniper DA CA 9740 PACIFIC BELL 722      
650-550 7 San Francisco: Juniper DA CA 9740 PACIFIC BELL 722      
650-746 A San Francisco: Juniper DA CA 9740 PACIFIC BELL 722      
650-746 0 San Francisco: Juniper DA CA 9740 PACIFIC BELL 722      
650-746 1 San Francisco: Juniper DA CA 9740 PACIFIC BELL 722      
650-746 2 San Francisco: Juniper DA CA 9740 PACIFIC BELL 722      
650-746 7 San Francisco: Juniper DA CA 9740 PACIFIC BELL 722      
650-754 A South San Francisco CA 9740 PACIFIC BELL 722      
650-754 0 South San Francisco CA 9740 PACIFIC BELL 722      
650-754 1 South San Francisco CA 9740 PACIFIC BELL 722      
650-754 9 South San Francisco CA 9740 PACIFIC BELL 722      
650-755 A San Francisco: Juniper DA CA 9740 PACIFIC BELL 722      
650-756 A San Francisco: Juniper DA CA 9740 PACIFIC BELL 722      
650-757 A San Francisco: Juniper DA CA 9740 PACIFIC BELL 722      
650-758 A San Francisco: Juniper DA CA 9740 PACIFIC BELL 722      
650-758 1 San Francisco: Juniper DA CA 9740 PACIFIC BELL 722      
650-758 2 San Francisco: Juniper DA CA 9740 PACIFIC BELL 722      
650-758 3 San Francisco: Juniper DA CA 9740 PACIFIC BELL 722      
650-758 4 San Francisco: Juniper DA CA 9740 PACIFIC BELL 722      
650-758 5 San Francisco: Juniper DA CA 9740 PACIFIC BELL 722      
650-758 6 San Francisco: Juniper DA CA 9740 PACIFIC BELL 722      
650-878 A South San Francisco CA 9740 PACIFIC BELL 722      
650-878 0 South San Francisco CA 9740 PACIFIC BELL 722      
650-878 1 South San Francisco CA 9740 PACIFIC BELL 722      
650-878 2 South San Francisco CA 9740 PACIFIC BELL 722      
650-878 3 South San Francisco CA 9740 PACIFIC BELL 722      
650-878 4 South San Francisco CA 9740 PACIFIC BELL 722      
650-878 5 South San Francisco CA 9740 PACIFIC BELL 722      
650-878 8 South San Francisco CA 9740 PACIFIC BELL 722      
650-878 9 South San Francisco CA 9740 PACIFIC BELL 722      
650-985 A San Francisco: Juniper DA CA 9740 PACIFIC BELL 722      
650-985 0 San Francisco: Juniper DA CA 9740 PACIFIC BELL 722      
650-985 1 San Francisco: Juniper DA CA 9740 PACIFIC BELL 722      
650-985 2 San Francisco: Juniper DA CA 9740 PACIFIC BELL 722      
650-985 4 San Francisco: Juniper DA CA 9740 PACIFIC BELL 722      
650-985 5 San Francisco: Juniper DA CA 9740 PACIFIC BELL 722      
650-985 6 San Francisco: Juniper DA CA 9740 PACIFIC BELL 722      
650-985 7 San Francisco: Juniper DA CA 9740 PACIFIC BELL 722      
650-985 8 San Francisco: Juniper DA CA 9740 PACIFIC BELL 722      
650-985 9 San Francisco: Juniper DA CA 9740 PACIFIC BELL 722      
650-991 A San Francisco: Juniper DA CA 9740 PACIFIC BELL 722      
650-992 A San Francisco: Juniper DA CA 9740 PACIFIC BELL 722      
650-994 A San Francisco: Juniper DA CA 9740 PACIFIC BELL 722      

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

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