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: 724

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
530-724 A Dunnigan CA DNGNCA12RS0  9740 PACIFIC BELL 726      
530-724 0 Dunnigan CA DNGNCA12RS0  9740 PACIFIC BELL 726      
530-724 1 Dunnigan CA DNGNCA12RS0  9740 PACIFIC BELL 726      
530-724 2 Dunnigan CA SCRMCA01XSY  649C ONVOY, LLC - CA 726   2012-12-30   
530-724 3 Dunnigan CA DNGNCA12RS0  9740 PACIFIC BELL 726      
530-724 4 Dunnigan CA DNGNCA12RS0  9740 PACIFIC BELL 726      
530-724 5 Dunnigan CA SCRMCA01XEZ  516C AT&T CORP. 726   2011-05-27   
530-724 6 Dunnigan CA SCRMCA01XSY  649C ONVOY, LLC - CA 726   2013-12-02   
530-724 7 Dunnigan CA SCRMCA01XSY  649C ONVOY, LLC - CA 726   2007-06-02   
530-724 8 Dunnigan CA SCRMCA01XSY  649C ONVOY, LLC - CA 726   2010-07-17   
530-724 9 Dunnigan CA SCRMCA01XSZ  073H TELNYX LLC 726   2019-10-10   

Last updated: Tue, 16 Apr 2024 01:38:01 UTC

Sponsored by: Execulink Telecom

Like this site? We accept donations via PayPal.