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.

Lee Vining, CA

NPA-NXX BLOCK Switch OCN LATA LIR Eff date Disc date
442-201 A VTVLCAXAX5Y  649C ONVOY, LLC - CA 730   2024-01-23   
442-201 0   649C ONVOY, LLC - CA 730   2016-04-22   
442-201 1   649C ONVOY, LLC - CA 730   2016-04-22   
442-201 3   373F PEERLESS NETWORK OF CALIFORNIA, LLC - CA 730   2016-12-09   
442-201 4   707H INTEGRATED PATH COMMUNICATIONS, LLC - CA 730   2018-05-08   
442-201 5   373F PEERLESS NETWORK OF CALIFORNIA, LLC - CA 730   2018-12-13   
442-201 6   649C ONVOY, LLC - CA 730   2019-03-01   
442-201 7   649C ONVOY, LLC - CA 730   2019-03-01   
442-201 8   073H TELNYX LLC 730   2019-07-22   
442-201 9   073H TELNYX LLC 730   2018-05-11   
442-318 A VTVLCAXAX5Y  649C ONVOY, LLC - CA 730   2024-01-23   
442-318 0   073H TELNYX LLC 730   2020-11-26   
442-318 1   373F PEERLESS NETWORK OF CALIFORNIA, LLC - CA 730   2020-12-07   
442-318 4   649C ONVOY, LLC - CA 730   2021-08-09   
442-318 8   624H ONVOY SPECTRUM, LLC 730   2021-11-07   
760-206 A LSANCA54DS7  8826 LEVEL 3 COMMUNICATIONS, LLC - CA 730      
760-206 0   624H ONVOY SPECTRUM, LLC 730   2021-11-07   
760-206 2   624H ONVOY SPECTRUM, LLC 730   2021-07-20   
760-206 3   981E BANDWIDTH.COM CLEC, LLC - CA 730   2014-10-06   
760-206 4   8826 LEVEL 3 COMMUNICATIONS, LLC - CA 730   2005-07-30   
760-206 5   508J CENTURYLINK COMMUNICATIONS, LLC 730   2014-06-27   
760-206 6   981E BANDWIDTH.COM CLEC, LLC - CA 730   2012-07-07   
760-206 7   373F PEERLESS NETWORK OF CALIFORNIA, LLC - CA 730   2013-03-28   
760-206 8   981E BANDWIDTH.COM CLEC, LLC - CA 730   2012-12-29   
760-206 9   145J TERRA NOVA TELECOM INC. 730   2022-07-07   
760-647 A LVNGCAXFRS5  4420 FRONTIER CALIFORNIA INC. 730      
760-647 0   981E BANDWIDTH.COM CLEC, LLC - CA 730   2015-07-17   
760-647 1   515J IP HORIZON LLC 730   2015-09-19   
760-647 2   649C ONVOY, LLC - CA 730   2007-01-11   
760-647 3   649C ONVOY, LLC - CA 730   2013-11-29   
760-647 4   649C ONVOY, LLC - CA 730   2002-12-18   
760-647 5   649C ONVOY, LLC - CA 730   2008-08-29   
760-647 6   4420 FRONTIER CALIFORNIA INC. 730      
760-647 7   649C ONVOY, LLC - CA 730   2012-12-31   
760-647 8   649C ONVOY, LLC - CA 730   2013-03-08   
760-647 9   649C ONVOY, LLC - CA 730   2013-11-29   

Last updated: Thu, 01 Jan 2026 03:59:49 UTC

Sponsored by: Execulink Telecom

Like this site? We accept donations via PayPal.