Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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NPA: 406 [Rate centres in NPA 406] [Dial plan for NPA 406]

NXX: 800

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
406-800 A Bridger MT BLNGMTAS9MD  453F ONVOY, LLC - MT 650      
406-800 0 Bridger MT BLNGMTAS9MD  453F ONVOY, LLC - MT 650   2014-01-10   
406-800 1 Bridger MT BLNGMTMALMD  994E BANDWIDTH.COM CLEC, LLC - MT 650   2015-03-21   
406-800 2 Bridger MT BLNGMTAS9MD  453F ONVOY, LLC - MT 650   2021-03-07   
406-800 4 Bridger MT BLNGMTAS9MD  453F ONVOY, LLC - MT 650   2020-11-10   
406-800 5 Bridger MT BLNGMTAS9MD  453F ONVOY, LLC - MT 650   2020-11-10   
406-800 6 Bridger MT BLNGMTMALMD  994E BANDWIDTH.COM CLEC, LLC - MT 650   2021-06-12   
406-800 7 Bridger MT BLNGMTWE8MD  508J CENTURYLINK COMMUNICATIONS, LLC 650   2016-08-10   
406-800 8 Bridger MT BLNGMTAS9MD  453F ONVOY, LLC - MT 650   2014-01-10   
406-800 9 Bridger MT BLNGMT933MD  073H TELNYX LLC 650   2018-07-25   

Last updated: Sun, 27 Apr 2025 12:48:38 UTC

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