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: CHICCA01X5X

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
530-256 7 Westwood CA 508J CENTURYLINK COMMUNICATIONS, LLC 724   2017-08-24   
530-281 7 Keddie CA 508J CENTURYLINK COMMUNICATIONS, LLC 724   2017-08-23   
530-294 7 Bieber CA 508J CENTURYLINK COMMUNICATIONS, LLC 724   2017-08-24   
530-500 7 Dunsmuir CA 508J CENTURYLINK COMMUNICATIONS, LLC 724   2017-03-01   
530-596 7 Lake Almanor CA 508J CENTURYLINK COMMUNICATIONS, LLC 724   2017-08-23   
530-825 7 Eagle Lake CA 508J CENTURYLINK COMMUNICATIONS, LLC 724   2017-08-23   
530-924 A Chico CA 508J CENTURYLINK COMMUNICATIONS, LLC 724      
530-924 7 Chico CA 508J CENTURYLINK COMMUNICATIONS, LLC 724   2016-10-29   

Last updated: Fri, 22 Mar 2024 03:02:44 UTC

Sponsored by: VoIP Much Phone Company

Like this site? We accept donations via PayPal.