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: ORVLCA11DS0

Remotes:

Switch Switch name Switch type
BGGSCA11RS0  BIGGS  5BR 
BNGRCA11RS0  BANGOR  5BR 
BTCYCA11RS1  BUTTE CITY  5BR 
CHLNCA11RS0  CHALLENGE  5ER 
ORVLCA12RS0  OROVILLE  5BR 
RCVACA11RS1  RICHVALE  5BR 
NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
530-532 A Oroville CA 9740 PACIFIC BELL 724      
530-533 A Oroville CA 9740 PACIFIC BELL 724      
530-534 A Oroville CA 9740 PACIFIC BELL 724      
530-538 A Oroville CA 9740 PACIFIC BELL 724      

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

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