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: SNFCCA04DS1

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
415-252 A San Francisco: Central DA CA 9740 PACIFIC BELL 722      
415-255 A San Francisco: Central DA CA 9740 PACIFIC BELL 722      
415-255 0 San Francisco: Central DA CA 9740 PACIFIC BELL 722      
415-255 1 San Francisco: Central DA CA 9740 PACIFIC BELL 722      
415-255 2 San Francisco: Central DA CA 9740 PACIFIC BELL 722      
415-255 3 San Francisco: Central DA CA 9740 PACIFIC BELL 722      
415-255 4 San Francisco: Central DA CA 9740 PACIFIC BELL 722      
415-255 6 San Francisco: Central DA CA 9740 PACIFIC BELL 722      
415-255 7 San Francisco: Central DA CA 9740 PACIFIC BELL 722      
415-255 8 San Francisco: Central DA CA 9740 PACIFIC BELL 722      
415-255 9 San Francisco: Central DA CA 9740 PACIFIC BELL 722      
415-503 A San Francisco: Central DA CA 9740 PACIFIC BELL 722      
415-503 0 San Francisco: Central DA CA 9740 PACIFIC BELL 722      
415-503 1 San Francisco: Central DA CA 9740 PACIFIC BELL 722      
415-503 2 San Francisco: Central DA CA 9740 PACIFIC BELL 722      
415-503 3 San Francisco: Central DA CA 9740 PACIFIC BELL 722      
415-503 4 San Francisco: Central DA CA 9740 PACIFIC BELL 722      
415-503 5 San Francisco: Central DA CA 9740 PACIFIC BELL 722      
415-503 6 San Francisco: Central DA CA 9740 PACIFIC BELL 722      
415-552 A San Francisco: Central DA CA 9740 PACIFIC BELL 722      
415-553 A San Francisco: Central DA CA 9740 PACIFIC BELL 722      
415-553 1 San Francisco: Central DA CA 9740 PACIFIC BELL 722      
415-553 2 San Francisco: Central DA CA 9740 PACIFIC BELL 722      
415-553 3 San Francisco: Central DA CA 9740 PACIFIC BELL 722      
415-553 4 San Francisco: Central DA CA 9740 PACIFIC BELL 722      
415-553 5 San Francisco: Central DA CA 9740 PACIFIC BELL 722      
415-553 6 San Francisco: Central DA CA 9740 PACIFIC BELL 722      
415-553 7 San Francisco: Central DA CA 9740 PACIFIC BELL 722      
415-553 8 San Francisco: Central DA CA 9740 PACIFIC BELL 722      
415-553 9 San Francisco: Central DA CA 9740 PACIFIC BELL 722      
415-558 A San Francisco: Central DA CA 9740 PACIFIC BELL 722      
415-575 A San Francisco: Central DA CA 9740 PACIFIC BELL 722      
415-621 A San Francisco: Central DA CA 9740 PACIFIC BELL 722      
415-621 0 San Francisco: Central DA CA 9740 PACIFIC BELL 722      
415-621 1 San Francisco: Central DA CA 9740 PACIFIC BELL 722      
415-621 2 San Francisco: Central DA CA 9740 PACIFIC BELL 722      
415-621 3 San Francisco: Central DA CA 9740 PACIFIC BELL 722      
415-621 4 San Francisco: Central DA CA 9740 PACIFIC BELL 722      
415-621 5 San Francisco: Central DA CA 9740 PACIFIC BELL 722      
415-621 6 San Francisco: Central DA CA 9740 PACIFIC BELL 722      
415-621 7 San Francisco: Central DA CA 9740 PACIFIC BELL 722      
415-621 8 San Francisco: Central DA CA 9740 PACIFIC BELL 722      
415-626 A San Francisco: Central DA CA 9740 PACIFIC BELL 722      
415-734 A San Francisco: Central DA CA 9740 PACIFIC BELL 722      
415-734 2 San Francisco: Central DA CA 9740 PACIFIC BELL 722      
415-734 3 San Francisco: Central DA CA 9740 PACIFIC BELL 722      
415-734 4 San Francisco: Central DA CA 9740 PACIFIC BELL 722      
415-734 5 San Francisco: Central DA CA 9740 PACIFIC BELL 722      
415-734 9 San Francisco: Central DA CA 9740 PACIFIC BELL 722      
415-832 A San Francisco: Central DA CA 9740 PACIFIC BELL 722      
415-832 1 San Francisco: Central DA CA 9740 PACIFIC BELL 722      
415-832 2 San Francisco: Central DA CA 9740 PACIFIC BELL 722      
415-832 3 San Francisco: Central DA CA 9740 PACIFIC BELL 722      
415-832 4 San Francisco: Central DA CA 9740 PACIFIC BELL 722      
415-832 5 San Francisco: Central DA CA 9740 PACIFIC BELL 722      
415-832 6 San Francisco: Central DA CA 9740 PACIFIC BELL 722      
415-832 7 San Francisco: Central DA CA 9740 PACIFIC BELL 722      
415-832 8 San Francisco: Central DA CA 9740 PACIFIC BELL 722      
415-837 6 San Francisco: Central DA CA 9740 PACIFIC BELL 722      
415-837 7 San Francisco: Central DA CA 9740 PACIFIC BELL 722      
415-861 A San Francisco: Central DA CA 9740 PACIFIC BELL 722      
415-861 0 San Francisco: Central DA CA 9740 PACIFIC BELL 722      
415-861 1 San Francisco: Central DA CA 9740 PACIFIC BELL 722      
415-861 2 San Francisco: Central DA CA 9740 PACIFIC BELL 722      
415-861 3 San Francisco: Central DA CA 9740 PACIFIC BELL 722      
415-861 4 San Francisco: Central DA CA 9740 PACIFIC BELL 722      
415-861 5 San Francisco: Central DA CA 9740 PACIFIC BELL 722      
415-861 6 San Francisco: Central DA CA 9740 PACIFIC BELL 722      
415-861 7 San Francisco: Central DA CA 9740 PACIFIC BELL 722      
415-861 8 San Francisco: Central DA CA 9740 PACIFIC BELL 722      
415-863 A San Francisco: Central DA CA 9740 PACIFIC BELL 722      
415-864 A San Francisco: Central DA CA 9740 PACIFIC BELL 722      
415-864 0 San Francisco: Central DA CA 9740 PACIFIC BELL 722      
415-864 1 San Francisco: Central DA CA 9740 PACIFIC BELL 722      
415-864 2 San Francisco: Central DA CA 9740 PACIFIC BELL 722      
415-864 3 San Francisco: Central DA CA 9740 PACIFIC BELL 722      
415-864 4 San Francisco: Central DA CA 9740 PACIFIC BELL 722      
415-864 5 San Francisco: Central DA CA 9740 PACIFIC BELL 722      
415-864 6 San Francisco: Central DA CA 9740 PACIFIC BELL 722      
415-864 7 San Francisco: Central DA CA 9740 PACIFIC BELL 722      
415-864 8 San Francisco: Central DA CA 9740 PACIFIC BELL 722      
415-865 A San Francisco: Central DA CA 9740 PACIFIC BELL 722      
628-242 A San Francisco: Central DA CA 9740 PACIFIC BELL 722      
628-242 6 San Francisco: Central DA CA 9740 PACIFIC BELL 722      
628-242 7 San Francisco: Central DA CA 9740 PACIFIC BELL 722      

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

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