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: LSBNCA12DS0

Remotes:

Switch Switch name Switch type
CWLDCA12RS0  CROWS LANDING  5ER 
GUSTCA11RS0  GUSTINE  5ER 
NWMNCA12RS0  NEWMAN  5ER 
NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
209-710 6 Los Banos CA 9740 PACIFIC BELL 738   2004-10-01   
209-826 A Los Banos CA 9740 PACIFIC BELL 738      
209-827 A Los Banos CA 9740 PACIFIC BELL 738      
209-829 A Los Banos CA 9740 PACIFIC BELL 738      
209-829 0 Los Banos CA 9740 PACIFIC BELL 738      
209-829 1 Los Banos CA 9740 PACIFIC BELL 738      

Last updated: Thu, 20 Nov 2025 13:34:34 UTC

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