Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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NPA: 707 [Rate centres in NPA 707] [Dial plan for NPA 707]

NXX: 983

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
707-983 A Covelo CA CVELCAXFDS0  4420 FRONTIER CALIFORNIA INC. 722      
707-983 1 Covelo CA   649C ONVOY, LLC - CA 722   2016-04-14   
707-983 2 Covelo CA   8826 LEVEL 3 COMMUNICATIONS, LLC - CA 722   2015-04-28   
707-983 3 Covelo CA   649C ONVOY, LLC - CA 722   2016-04-14   
707-983 4 Covelo CA   373F PEERLESS NETWORK OF CALIFORNIA, LLC - CA 722   2020-04-08   
707-983 5 Covelo CA   508J CENTURYLINK COMMUNICATIONS, LLC 722   2014-05-27   
707-983 6 Covelo CA   4420 FRONTIER CALIFORNIA INC. 722      
707-983 7 Covelo CA   649C ONVOY, LLC - CA 722   2010-08-15   
707-983 8 Covelo CA   4420 FRONTIER CALIFORNIA INC. 722      
707-983 9 Covelo CA   145J TERRA NOVA TELECOM INC. 722   2021-01-06   

Last updated: Thu, 29 Jan 2026 14:35:03 UTC

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