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: 309

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
530-309 A Woodland CA SCRMCA01XSY  649C ONVOY, LLC - CA 726      
530-309 0 Woodland CA   649C ONVOY, LLC - CA 726      
530-309 1 Woodland CA   649C ONVOY, LLC - CA 726      
530-309 2 Woodland CA   649C ONVOY, LLC - CA 726      
530-309 3 Woodland CA   649C ONVOY, LLC - CA 726      
530-309 4 Woodland CA   6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 726   2020-04-17   
530-309 5 Woodland CA   6006 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 726   2011-12-23   
530-309 6 Woodland CA   981E BANDWIDTH.COM CLEC, LLC - CA 726   2011-02-19   
530-309 7 Woodland CA   6529 T-MOBILE USA, INC. 726   2020-12-08   
530-309 8 Woodland CA   6010 NEW CINGULAR WIRELESS PCS, LLC 726   2012-02-20   
530-309 9 Woodland CA   6529 T-MOBILE USA, INC. 726   2012-04-19   

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

Sponsored by: Execulink Telecom

Like this site? We accept donations via PayPal.