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: 316

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
530-316 A Blairsden CA CHICCA01SMD  981E BANDWIDTH.COM CLEC, LLC - CA 724      
530-316 0 Blairsden CA   8826 LEVEL 3 COMMUNICATIONS, LLC - CA 724   2007-05-17   
530-316 1 Blairsden CA   981E BANDWIDTH.COM CLEC, LLC - CA 724   2015-05-03   
530-316 2 Blairsden CA   649C ONVOY, LLC - CA 724   2016-03-05   
530-316 3 Blairsden CA   649C ONVOY, LLC - CA 724   2023-12-17   
530-316 4 Blairsden CA   981E BANDWIDTH.COM CLEC, LLC - CA 724   2009-02-23   
530-316 5 Blairsden CA   649C ONVOY, LLC - CA 724   2017-04-28   
530-316 6 Blairsden CA   649C ONVOY, LLC - CA 724   2021-07-18   
530-316 7 Blairsden CA   939H COMMIO, LLC 724   2024-01-21   
530-316 8 Blairsden CA   649C ONVOY, LLC - CA 724   2021-08-09   
530-316 9 Blairsden CA   649C ONVOY, LLC - CA 724   2022-02-24   

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

Sponsored by: ISP Telecom

Like this site? We accept donations via PayPal.