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.

NPA: 530 [Rate centres in NPA 530] [Dial plan for NPA 530]

NXX: 924

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
530-924 A Chico CA   508J CENTURYLINK COMMUNICATIONS LLC 724      
530-924 0 Chico CA CHICCA017MD  8826 LEVEL 3 COMMUNICATIONS, LLC - CA 724   2009-09-07   
530-924 2 Chico CA CHICCAEY3MD  7453 U.S. TELEPACIFIC CORP. - CA 724   2009-05-31   
530-924 3 Chico CA CHICCA017MD  8826 LEVEL 3 COMMUNICATIONS, LLC - CA 724   2011-06-27   
530-924 4 Chico CA CHICCA017MD  8826 LEVEL 3 COMMUNICATIONS, LLC - CA 724   2005-07-25   
530-924 5 Chico CA CHICCA017MD  8826 LEVEL 3 COMMUNICATIONS, LLC - CA 724   2013-09-19   
530-924 6 Chico CA CHICCA017MD  8826 LEVEL 3 COMMUNICATIONS, LLC - CA 724   2014-10-19   
530-924 7 Chico CA   508J CENTURYLINK COMMUNICATIONS LLC 724   2016-10-29   

Last updated: Tue, 04 May 2021 15:04:27 UTC

Sponsored by: VoIP Much Phone Company

Like this site? We accept donations via PayPal.