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: SCVYCA01DS0

Remotes:

Switch Switch name Switch type
BLCKCA11RS3  BOULDER CREEK  5ER 
BNLMCA11RS2  BEN LOMOND  5ER 
FETNCA11RS1  FELTON  5ER 
NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
831-430 A Santa Cruz CA 9740 PACIFIC BELL 722      
831-430 0 Santa Cruz CA 9740 PACIFIC BELL 722      
831-430 1 Santa Cruz CA 9740 PACIFIC BELL 722      
831-430 2 Santa Cruz CA 9740 PACIFIC BELL 722      
831-430 3 Santa Cruz CA 9740 PACIFIC BELL 722      
831-430 4 Santa Cruz CA 9740 PACIFIC BELL 722      
831-430 5 Santa Cruz CA 9740 PACIFIC BELL 722      
831-430 9 Santa Cruz CA 9740 PACIFIC BELL 722      
831-431 A Santa Cruz CA 9740 PACIFIC BELL 722      
831-431 1 Santa Cruz CA 9740 PACIFIC BELL 722      
831-431 2 Santa Cruz CA 9740 PACIFIC BELL 722      
831-431 4 Santa Cruz CA 9740 PACIFIC BELL 722      
831-431 5 Santa Cruz CA 9740 PACIFIC BELL 722      
831-438 A Santa Cruz CA 9740 PACIFIC BELL 722      
831-439 A Santa Cruz CA 9740 PACIFIC BELL 722      
831-439 0 Santa Cruz CA 9740 PACIFIC BELL 722      
831-439 1 Santa Cruz CA 9740 PACIFIC BELL 722      
831-439 3 Santa Cruz CA 9740 PACIFIC BELL 722      
831-439 5 Santa Cruz CA 9740 PACIFIC BELL 722      
831-439 6 Santa Cruz CA 9740 PACIFIC BELL 722      
831-439 7 Santa Cruz CA 9740 PACIFIC BELL 722      
831-439 8 Santa Cruz CA 9740 PACIFIC BELL 722      
831-439 9 Santa Cruz CA 9740 PACIFIC BELL 722      
831-440 A Santa Cruz CA 9740 PACIFIC BELL 722      
831-440 0 Santa Cruz CA 9740 PACIFIC BELL 722      
831-440 1 Santa Cruz CA 9740 PACIFIC BELL 722      
831-440 2 Santa Cruz CA 9740 PACIFIC BELL 722      
831-440 4 Santa Cruz CA 9740 PACIFIC BELL 722      
831-440 5 Santa Cruz CA 9740 PACIFIC BELL 722      
831-440 9 Santa Cruz CA 9740 PACIFIC BELL 722      
831-461 A Santa Cruz CA 9740 PACIFIC BELL 722      
831-461 0 Santa Cruz CA 9740 PACIFIC BELL 722      
831-461 1 Santa Cruz CA 9740 PACIFIC BELL 722      
831-461 2 Santa Cruz CA 9740 PACIFIC BELL 722      
831-461 6 Santa Cruz CA 9740 PACIFIC BELL 722      
831-461 7 Santa Cruz CA 9740 PACIFIC BELL 722      
831-461 9 Santa Cruz CA 9740 PACIFIC BELL 722      

Last updated: Thu, 16 Oct 2025 03:04:18 UTC

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