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: RAMNCA11DS0

Remotes:

Switch Switch name Switch type
BRSPCA11RS2  BORREGO SPRINGS  5ER 
JULNCA12RS1  JULIAN  5ER 
WNSPCA12RS0  WARNER SPRINGS  5ER 
NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
760-787 A Ramona CA 9740 PACIFIC BELL 732      
760-788 A Ramona CA 9740 PACIFIC BELL 732      
760-789 A Ramona CA 9740 PACIFIC BELL 732      

Last updated: Tue, 13 Jan 2026 21:50:02 UTC

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