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: SNFCCA01DS0

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
415-248 A San Francisco: Central DA CA 9740 PACIFIC BELL 722      
415-249 A San Francisco: Central DA CA 9740 PACIFIC BELL 722      
415-262 A San Francisco: Central DA CA 9740 PACIFIC BELL 722      
415-263 A San Francisco: Central DA CA 9740 PACIFIC BELL 722      
415-273 A San Francisco: Central DA CA 9740 PACIFIC BELL 722      
415-274 A San Francisco: Central DA CA 9740 PACIFIC BELL 722      
415-291 A San Francisco: Central DA CA 9740 PACIFIC BELL 722      
415-296 A San Francisco: Central DA CA 9740 PACIFIC BELL 722      
415-315 A San Francisco: Central DA CA 9740 PACIFIC BELL 722      
415-318 A San Francisco: Central DA CA 9740 PACIFIC BELL 722      
415-362 A San Francisco: Central DA CA 9740 PACIFIC BELL 722      
415-364 A San Francisco: Central DA CA 9740 PACIFIC BELL 722      
415-374 A San Francisco: Central DA CA 9740 PACIFIC BELL 722      
415-393 A San Francisco: Central DA CA 9740 PACIFIC BELL 722      
415-395 A San Francisco: Central DA CA 9740 PACIFIC BELL 722      
415-622 A San Francisco: Central DA CA 9740 PACIFIC BELL 722      
415-623 A San Francisco: Central DA CA 9740 PACIFIC BELL 722      
415-627 A San Francisco: Central DA CA 9740 PACIFIC BELL 722      
415-636 A San Francisco: Central DA CA 9740 PACIFIC BELL 722      
415-646 A San Francisco: Central DA CA 9740 PACIFIC BELL 722      
415-658 A San Francisco: Central DA CA 9740 PACIFIC BELL 722      
415-670 A San Francisco: Central DA CA 9740 PACIFIC BELL 722      
415-675 A San Francisco: Central DA CA 9740 PACIFIC BELL 722      
415-676 A San Francisco: Central DA CA 9740 PACIFIC BELL 722      
415-678 A San Francisco: Central DA CA 9740 PACIFIC BELL 722      
415-693 A San Francisco: Central DA CA 9740 PACIFIC BELL 722      
415-705 A San Francisco: Central DA CA 9740 PACIFIC BELL 722      
415-773 A San Francisco: Central DA CA 9740 PACIFIC BELL 722      
415-834 A San Francisco: Central DA CA 9740 PACIFIC BELL 722      
415-835 A San Francisco: Central DA CA 9740 PACIFIC BELL 722      
415-837 A San Francisco: Central DA CA 9740 PACIFIC BELL 722      
415-839 A San Francisco: Central DA CA 9740 PACIFIC BELL 722      
415-953 A San Francisco: Central DA CA 9740 PACIFIC BELL 722      
415-954 A San Francisco: Central DA CA 9740 PACIFIC BELL 722      

Last updated: Sun, 31 May 2020 11:59:01 UTC

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