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:

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
530-678 A Dunsmuir CA   8826 LEVEL 3 COMMUNICATIONS, LLC - CA 724      
530-678 0 Dunsmuir CA   8826 LEVEL 3 COMMUNICATIONS, LLC - CA 724      
530-678 2 Dunsmuir CA   8826 LEVEL 3 COMMUNICATIONS, LLC - CA 724   2007-06-22   
530-678 3 Dunsmuir CA   981E BANDWIDTH.COM CLEC, LLC - CA 724      
530-678 4 Dunsmuir CA   981E BANDWIDTH.COM CLEC, LLC - CA 724      
530-678 6 Dunsmuir CA   649C ONVOY, LLC - CA 724   2019-03-11   
530-678 7 Dunsmuir CA   649C ONVOY, LLC - CA 724   2019-03-11   
530-678 9 Dunsmuir CA   373F PEERLESS NETWORK OF CALIFORNIA, LLC - CA 724   2018-10-26   

Last updated: Thu, 10 Sep 2020 02:15:24 UTC

Sponsored by: VoIP Much Phone Company

Like this site? We accept donations via PayPal.