Local Calling Guide

Area code/prefix search

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NPA: 661 [Rate centres in NPA 661] [Dial plan for NPA 661]

NXX: 443

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
661-443 A Walker Basin CA BKFDCA11GMD  649C ONVOY, LLC - CA 734      
661-443 0 Walker Basin CA   649C ONVOY, LLC - CA 734      
661-443 1 Walker Basin CA   981E BANDWIDTH.COM CLEC, LLC - CA 734   2017-07-20   
661-443 2 Walker Basin CA   649C ONVOY, LLC - CA 734   2019-02-22   
661-443 3 Walker Basin CA   649C ONVOY, LLC - CA 734   2014-01-07   
661-443 4 Walker Basin CA   649C ONVOY, LLC - CA 734   2019-02-22   
661-443 5 Walker Basin CA   649C ONVOY, LLC - CA 734   2020-05-04   
661-443 6 Walker Basin CA   649C ONVOY, LLC - CA 734   2020-05-04   
661-443 7 Walker Basin CA   508J CENTURYLINK COMMUNICATIONS, LLC 734   2015-05-05   
661-443 8 Walker Basin CA   649C ONVOY, LLC - CA 734   2021-03-05   
661-443 9 Walker Basin CA   649C ONVOY, LLC - CA 734   2021-03-05   

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

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