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: 805 [Rate centres in NPA 805] [Dial plan for NPA 805]

NXX: 303

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
805-303 A Saticoy CA SHOKCA02IMD  7139 TELEPORT COMMUNICATIONS AMERICA, LLC - CA 730      
805-303 0 Saticoy CA   6010 NEW CINGULAR WIRELESS PCS, LLC 730   2026-02-13   
805-303 1 Saticoy CA LSANCA039MD  981E BANDWIDTH.COM CLEC, LLC - CA 730   2014-09-01   
805-303 2 Saticoy CA LSANCARCD3S  649C ONVOY, LLC - CA 730   2012-12-30   
805-303 3 Saticoy CA LSANCARCD3S  649C ONVOY, LLC - CA 730   2012-12-30   
805-303 4 Saticoy CA LSANCARCD3S  649C ONVOY, LLC - CA 730   2012-12-30   
805-303 5 Saticoy CA LSANCARCD3S  649C ONVOY, LLC - CA 730   2013-03-09   
805-303 6 Saticoy CA SHOKCA02IMD  7139 TELEPORT COMMUNICATIONS AMERICA, LLC - CA 730   2010-05-07   
805-303 7 Saticoy CA LSANCARCD3S  649C ONVOY, LLC - CA 730   2013-12-02   
805-303 8 Saticoy CA LSANCARCD3S  649C ONVOY, LLC - CA 730   2013-12-02   

Last updated: Thu, 05 Feb 2026 23:41:55 UTC

Sponsored by: ISP Telecom

Like this site? We accept donations via PayPal.