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: 387

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
406-387 A Hungry Horse MT HNHRMTXCRS0  2249 CENTURYTEL OF MONTANA, INC. DBA CENTURYLINK 648      
406-387 0 Hungry Horse MT GRFLMTMAHMD  073H TELNYX LLC 648   2020-08-13   
406-387 1 Hungry Horse MT GRFLMTMA7MD  453F ONVOY, LLC - MT 648   2021-07-05   
406-387 2 Hungry Horse MT MSSLMTMA0MD  9415 LEVEL 3 COMMUNICATIONS, LLC - MT 648   2023-02-27   
406-387 3 Hungry Horse MT HNHRMTXCRS0  2249 CENTURYTEL OF MONTANA, INC. DBA CENTURYLINK 648      
406-387 4 Hungry Horse MT HNHRMTXCRS0  2249 CENTURYTEL OF MONTANA, INC. DBA CENTURYLINK 648      
406-387 5 Hungry Horse MT HNHRMTXCRS0  2249 CENTURYTEL OF MONTANA, INC. DBA CENTURYLINK 648      
406-387 6 Hungry Horse MT MSSLMTMACMD  6529 T-MOBILE USA, INC. 648   2023-12-16   
406-387 7 Hungry Horse MT HLNAMTMAUMD  508J CENTURYLINK COMMUNICATIONS, LLC 648   2014-05-24   
406-387 9 Hungry Horse MT HNHRMTXCRS0  2249 CENTURYTEL OF MONTANA, INC. DBA CENTURYLINK 648      

Last updated: Tue, 16 Apr 2024 01:38:01 UTC

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