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
415-243 A San Francisco: Central DA CA 9740 PACIFIC BELL 722      
415-243 0 San Francisco: Central DA CA 9740 PACIFIC BELL 722      
415-243 1 San Francisco: Central DA CA 9740 PACIFIC BELL 722      
415-243 2 San Francisco: Central DA CA 9740 PACIFIC BELL 722      
415-243 3 San Francisco: Central DA CA 9740 PACIFIC BELL 722      
415-243 4 San Francisco: Central DA CA 9740 PACIFIC BELL 722      
415-243 5 San Francisco: Central DA CA 9740 PACIFIC BELL 722      
415-243 8 San Francisco: Central DA CA 9740 PACIFIC BELL 722      
415-243 9 San Francisco: Central DA CA 9740 PACIFIC BELL 722      
415-281 A San Francisco: Central DA CA 9740 PACIFIC BELL 722      
415-284 A San Francisco: Central DA CA 9740 PACIFIC BELL 722      
415-369 A San Francisco: Central DA CA 9740 PACIFIC BELL 722      
415-369 0 San Francisco: Central DA CA 9740 PACIFIC BELL 722      
415-369 1 San Francisco: Central DA CA 9740 PACIFIC BELL 722      
415-369 2 San Francisco: Central DA CA 9740 PACIFIC BELL 722      
415-369 3 San Francisco: Central DA CA 9740 PACIFIC BELL 722      
415-369 4 San Francisco: Central DA CA 9740 PACIFIC BELL 722      
415-369 5 San Francisco: Central DA CA 9740 PACIFIC BELL 722      
415-369 6 San Francisco: Central DA CA 9740 PACIFIC BELL 722      
415-369 8 San Francisco: Central DA CA 9740 PACIFIC BELL 722      
415-369 9 San Francisco: Central DA CA 9740 PACIFIC BELL 722      
415-371 A San Francisco: Central DA CA 9740 PACIFIC BELL 722      
415-371 0 San Francisco: Central DA CA 9740 PACIFIC BELL 722      
415-371 1 San Francisco: Central DA CA 9740 PACIFIC BELL 722      
415-371 2 San Francisco: Central DA CA 9740 PACIFIC BELL 722      
415-371 3 San Francisco: Central DA CA 9740 PACIFIC BELL 722      
415-371 4 San Francisco: Central DA CA 9740 PACIFIC BELL 722      
415-371 5 San Francisco: Central DA CA 9740 PACIFIC BELL 722      
415-371 6 San Francisco: Central DA CA 9740 PACIFIC BELL 722      
415-371 7 San Francisco: Central DA CA 9740 PACIFIC BELL 722      
415-442 A San Francisco: Central DA CA 9740 PACIFIC BELL 722      
415-512 A San Francisco: Central DA CA 9740 PACIFIC BELL 722      
415-536 A San Francisco: Central DA CA 9740 PACIFIC BELL 722      
415-537 A San Francisco: Central DA CA 9740 PACIFIC BELL 722      
415-537 1 San Francisco: Central DA CA 9740 PACIFIC BELL 722      
415-537 2 San Francisco: Central DA CA 9740 PACIFIC BELL 722      
415-537 3 San Francisco: Central DA CA 9740 PACIFIC BELL 722      
415-537 4 San Francisco: Central DA CA 9740 PACIFIC BELL 722      
415-537 5 San Francisco: Central DA CA 9740 PACIFIC BELL 722      
415-537 6 San Francisco: Central DA CA 9740 PACIFIC BELL 722      
415-537 7 San Francisco: Central DA CA 9740 PACIFIC BELL 722      
415-537 8 San Francisco: Central DA CA 9740 PACIFIC BELL 722      
415-542 A San Francisco: Central DA CA 9740 PACIFIC BELL 722      
415-542 0 San Francisco: Central DA CA 9740 PACIFIC BELL 722      
415-542 1 San Francisco: Central DA CA 9740 PACIFIC BELL 722      
415-542 2 San Francisco: Central DA CA 9740 PACIFIC BELL 722      
415-542 3 San Francisco: Central DA CA 9740 PACIFIC BELL 722      
415-542 4 San Francisco: Central DA CA 9740 PACIFIC BELL 722      
415-542 5 San Francisco: Central DA CA 9740 PACIFIC BELL 722      
415-542 7 San Francisco: Central DA CA 9740 PACIFIC BELL 722      

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Last updated: Fri, 22 Mar 2024 03:02:44 UTC

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