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: 359

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
406-359 A Glendive MT GLNDMTMADS0  9636 QWEST CORPORATION 650      
406-359 0 Glendive MT   073H TELNYX LLC 650   2018-07-25   
406-359 1 Glendive MT   994E BANDWIDTH.COM CLEC, LLC - MT 650   2009-02-13   
406-359 2 Glendive MT   9636 QWEST CORPORATION 650      
406-359 3 Glendive MT   9636 QWEST CORPORATION 650      
406-359 4 Glendive MT   9636 QWEST CORPORATION 650      
406-359 5 Glendive MT   939H COMMIO, LLC 650   2022-11-13   
406-359 6 Glendive MT   453F ONVOY, LLC - MT 650   2006-10-20   
406-359 7 Glendive MT   9636 QWEST CORPORATION 650      
406-359 8 Glendive MT   588H AIRUS, INC. - MT 650   2020-03-16   
406-359 9 Glendive MT   6564 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT 650   2018-12-17   

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

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