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: 442 [Rate centres in NPA 442] [Dial plan for NPA 442]

NXX: 900

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
442-900 A Ocotillo CA SNDGCAJWDS0  649C ONVOY, LLC - CA 732      
442-900 0 Ocotillo CA SNDGCAJWDS0  649C ONVOY, LLC - CA 732   2013-01-07   
442-900 1 Ocotillo CA SNDGCAJWDS0  649C ONVOY, LLC - CA 732   2013-01-08   
442-900 2 Ocotillo CA SNDGCAJWDS0  649C ONVOY, LLC - CA 732   2013-03-21   
442-900 3 Ocotillo CA SNDGCA02XSZ  373F PEERLESS NETWORK OF CALIFORNIA, LLC - CA 732   2013-03-28   
442-900 4 Ocotillo CA SNDGCA02XIZ  981E BANDWIDTH.COM CLEC, LLC - CA 732   2014-11-08   
442-900 5 Ocotillo CA SNDGCA0255Z  073H TELNYX LLC 732   2018-07-11   
442-900 6 Ocotillo CA SNDGCA0239Z  508J CENTURYLINK COMMUNICATIONS LLC 732   2014-07-09   
442-900 7 Ocotillo CA SNDGCAJWDS0  649C ONVOY, LLC - CA 732   2013-11-28   
442-900 8 Ocotillo CA SNDGCAJWDS0  649C ONVOY, LLC - CA 732   2013-11-28   
442-900 9 Ocotillo CA SNDGCA0260Z  624H ONVOY SPECTRUM, LLC 732   2021-11-08   

Last updated: Thu, 04 Aug 2022 23:14:42 UTC

Sponsored by: Callcentric - VoIP Internet phone service

Like this site? We accept donations via PayPal.