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: SNRFCA01DS0

Remotes:

Switch Switch name Switch type
INVRCA11RS0  INVERNESS  RSC 
NICSCA11RS0  NICASIO  RSC 
NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
415-256 A San Rafael CA 9740 PACIFIC BELL 722      
415-256 0 San Rafael CA 9740 PACIFIC BELL 722      
415-256 1 San Rafael CA 9740 PACIFIC BELL 722      
415-256 2 San Rafael CA 9740 PACIFIC BELL 722      
415-256 3 San Rafael CA 9740 PACIFIC BELL 722      
415-256 5 San Rafael CA 9740 PACIFIC BELL 722      
415-256 7 San Rafael CA 9740 PACIFIC BELL 722      
415-256 8 San Rafael CA 9740 PACIFIC BELL 722      
415-256 9 San Rafael CA 9740 PACIFIC BELL 722      
415-257 A San Rafael CA 9740 PACIFIC BELL 722      
415-258 A San Rafael CA 9740 PACIFIC BELL 722      
415-259 A San Rafael CA 9740 PACIFIC BELL 722      
415-259 0 San Rafael CA 9740 PACIFIC BELL 722      
415-259 2 San Rafael CA 9740 PACIFIC BELL 722      
415-259 3 San Rafael CA 9740 PACIFIC BELL 722      
415-451 A San Rafael CA 9740 PACIFIC BELL 722      
415-453 A San Rafael CA 9740 PACIFIC BELL 722      
415-454 A San Rafael CA 9740 PACIFIC BELL 722      
415-455 A San Rafael CA 9740 PACIFIC BELL 722      
415-455 0 San Rafael CA 9740 PACIFIC BELL 722      
415-455 1 San Rafael CA 9740 PACIFIC BELL 722      
415-455 2 San Rafael CA 9740 PACIFIC BELL 722      
415-455 4 San Rafael CA 9740 PACIFIC BELL 722      
415-455 5 San Rafael CA 9740 PACIFIC BELL 722      
415-455 7 San Rafael CA 9740 PACIFIC BELL 722      
415-455 8 San Rafael CA 9740 PACIFIC BELL 722      
415-455 9 San Rafael CA 9740 PACIFIC BELL 722      
415-456 A San Rafael CA 9740 PACIFIC BELL 722      
415-457 A San Rafael CA 9740 PACIFIC BELL 722      
415-458 A San Rafael CA 9740 PACIFIC BELL 722      
415-458 0 San Rafael CA 9740 PACIFIC BELL 722      
415-458 1 San Rafael CA 9740 PACIFIC BELL 722      
415-458 2 San Rafael CA 9740 PACIFIC BELL 722      
415-458 3 San Rafael CA 9740 PACIFIC BELL 722      
415-458 4 San Rafael CA 9740 PACIFIC BELL 722      
415-458 5 San Rafael CA 9740 PACIFIC BELL 722      
415-458 7 San Rafael CA 9740 PACIFIC BELL 722      
415-458 8 San Rafael CA 9740 PACIFIC BELL 722      
415-459 A San Rafael CA 9740 PACIFIC BELL 722      
415-460 A San Rafael CA 9740 PACIFIC BELL 722      
415-460 0 San Rafael CA 9740 PACIFIC BELL 722      
415-460 1 San Rafael CA 9740 PACIFIC BELL 722      
415-460 2 San Rafael CA 9740 PACIFIC BELL 722      
415-460 4 San Rafael CA 9740 PACIFIC BELL 722      
415-460 5 San Rafael CA 9740 PACIFIC BELL 722      
415-460 6 San Rafael CA 9740 PACIFIC BELL 722      
415-460 8 San Rafael CA 9740 PACIFIC BELL 722      
415-460 9 San Rafael CA 9740 PACIFIC BELL 722      
415-482 A San Rafael CA 9740 PACIFIC BELL 722      
415-482 0 San Rafael CA 9740 PACIFIC BELL 722      
415-482 1 San Rafael CA 9740 PACIFIC BELL 722      
415-482 2 San Rafael CA 9740 PACIFIC BELL 722      
415-482 3 San Rafael CA 9740 PACIFIC BELL 722      
415-482 4 San Rafael CA 9740 PACIFIC BELL 722      
415-482 6 San Rafael CA 9740 PACIFIC BELL 722      
415-482 7 San Rafael CA 9740 PACIFIC BELL 722      
415-482 8 San Rafael CA 9740 PACIFIC BELL 722      
415-482 9 San Rafael CA 9740 PACIFIC BELL 722      
415-485 A San Rafael CA 9740 PACIFIC BELL 722      
415-721 A San Rafael CA 9740 PACIFIC BELL 722      

Last updated: Tue, 31 Mar 2026 13:56:49 UTC

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