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: 733

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
530-733 A Gazelle CA CHICCA01SMD  981E BANDWIDTH.COM CLEC, LLC - CA 724      
530-733 0 Gazelle CA CHICCA017MD  8826 LEVEL 3 COMMUNICATIONS, LLC - CA 724      
530-733 1 Gazelle CA CHICCACW2MD  939H COMMIO, LLC 724   2022-10-16   
530-733 2 Gazelle CA CHICCA01SMD  981E BANDWIDTH.COM CLEC, LLC - CA 724   2022-02-10   
530-733 3 Gazelle CA CHICCA01XCX  649C ONVOY, LLC - CA 724   2019-03-11   
530-733 4 Gazelle CA CHICCA01XCX  649C ONVOY, LLC - CA 724      
530-733 5 Gazelle CA CHICCA01XCX  649C ONVOY, LLC - CA 724   2019-03-11   
530-733 6 Gazelle CA CHICCA01SMD  981E BANDWIDTH.COM CLEC, LLC - CA 724   2011-01-09   
530-733 8 Gazelle CA CHICCA01XCX  649C ONVOY, LLC - CA 724   2021-07-18   
530-733 9 Gazelle CA CHICCA01XCX  649C ONVOY, LLC - CA 724   2021-08-09   

Last updated: Sun, 01 Jun 2025 02:18:11 UTC

Sponsored by: VoIP.ms

Like this site? We accept donations via PayPal.