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: 365

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
406-365 A Glendive MT GLNDMTMADS0  9636 QWEST CORPORATION 650      
406-365 0 Glendive MT BLNGMTAS9MD  453F ONVOY, LLC - MT 650   2021-07-05   
406-365 1 Glendive MT BLNGMTWE6MD  9415 LEVEL 3 COMMUNICATIONS, LLC - MT 650   2005-02-21   
406-365 2 Glendive MT GLNDMTMADS0  9636 QWEST CORPORATION 650      
406-365 3 Glendive MT GLNDMTMADS0  9636 QWEST CORPORATION 650      
406-365 4 Glendive MT GLNDMTMADS0  9636 QWEST CORPORATION 650      
406-365 5 Glendive MT GLNDMTMADS0  9636 QWEST CORPORATION 650      
406-365 6 Glendive MT GLNDMTMADS0  9636 QWEST CORPORATION 650      
406-365 7 Glendive MT GLNDMTMADS0  9636 QWEST CORPORATION 650      
406-365 8 Glendive MT GLNDMTMADS0  9636 QWEST CORPORATION 650      
406-365 9 Glendive MT GLNDMTMADS0  9636 QWEST CORPORATION 650      

Last updated: Thu, 20 Nov 2025 13:34:34 UTC

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