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: SNFCCA12DS0

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
415-292 A San Francisco: Central DA CA 9740 PACIFIC BELL 722      
415-345 A San Francisco: Central DA CA 9740 PACIFIC BELL 722      
415-346 A San Francisco: Central DA CA 9740 PACIFIC BELL 722      
415-353 A San Francisco: Central DA CA 9740 PACIFIC BELL 722      
415-359 A San Francisco: Central DA CA 9740 PACIFIC BELL 722      
415-409 A San Francisco: Central DA CA 9740 PACIFIC BELL 722      
415-440 A San Francisco: Central DA CA 9740 PACIFIC BELL 722      
415-441 A San Francisco: Central DA CA 9740 PACIFIC BELL 722      
415-447 A San Francisco: Central DA CA 9740 PACIFIC BELL 722      
415-561 A San Francisco: Central DA CA 9740 PACIFIC BELL 722      
415-563 A San Francisco: Central DA CA 9740 PACIFIC BELL 722      
415-567 A San Francisco: Central DA CA 9740 PACIFIC BELL 722      
415-673 A San Francisco: Central DA CA 9740 PACIFIC BELL 722      
415-674 A San Francisco: Central DA CA 9740 PACIFIC BELL 722      
415-931 A San Francisco: Central DA CA 9740 PACIFIC BELL 722      

Last updated: Sun, 10 Nov 2019 13:49:34 UTC

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