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: SNMCCA11DS0

Remotes:

Switch Switch name Switch type
PALACA11RS0  PALA  RSC 
SNMCCAAORS1  SAN MARCOS  RSC 
NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
760-471 A San Marcos CA 9740 PACIFIC BELL 732      
760-510 A San Marcos CA 9740 PACIFIC BELL 732      
760-591 A San Marcos CA 9740 PACIFIC BELL 732      
760-593 A San Marcos CA 9740 PACIFIC BELL 732      
760-597 A Vista CA 9740 PACIFIC BELL 732      
760-598 A Vista CA 9740 PACIFIC BELL 732      
760-599 A Vista CA 9740 PACIFIC BELL 732      
760-727 A Vista CA 9740 PACIFIC BELL 732      
760-734 A Vista CA 9740 PACIFIC BELL 732      
760-736 A San Marcos CA 9740 PACIFIC BELL 732      
760-744 A San Marcos CA 9740 PACIFIC BELL 732      
760-752 A San Marcos CA 9740 PACIFIC BELL 732      
760-761 A San Marcos CA 9740 PACIFIC BELL 732      
760-891 A San Marcos CA 9740 PACIFIC BELL 732      

Last updated: Thu, 01 Jan 2026 03:59:49 UTC

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