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: 729

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
406-729 A Wilsall MT BLNGMTWE8MD  508J CENTURYLINK COMMUNICATIONS, LLC 650      
406-729 0 Wilsall MT BLNGMT933MD  073H TELNYX LLC 650   2018-07-25   
406-729 1 Wilsall MT BLNGMTAS9MD  453F ONVOY, LLC - MT 650   2021-07-08   
406-729 2 Wilsall MT BLNGMTAS9MD  453F ONVOY, LLC - MT 650   2020-11-10   
406-729 3 Wilsall MT BLNGMTMAMMD  6010 NEW CINGULAR WIRELESS PCS, LLC 650   2023-09-21   
406-729 4 Wilsall MT BLNGMTAS9MD  453F ONVOY, LLC - MT 650   2019-09-15   
406-729 5 Wilsall MT BLNGMTAS9MD  453F ONVOY, LLC - MT 650   2021-03-19   
406-729 6 Wilsall MT BLNGMTAS9MD  453F ONVOY, LLC - MT 650   2019-09-15   
406-729 7 Wilsall MT BLNGMTWE8MD  508J CENTURYLINK COMMUNICATIONS, LLC 650   2016-11-11   
406-729 8 Wilsall MT BLNGMTAS9MD  453F ONVOY, LLC - MT 650   2021-03-19   
406-729 9 Wilsall MT BLNGMTAS9MD  453F ONVOY, LLC - MT 650   2023-08-20   

Last updated: Sat, 05 Apr 2025 03:03:23 UTC

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