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: 865

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
406-865 A Dillon MT HLNAMTMAX1X  6564 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT 648      
406-865 0 Dillon MT HLNAMTMAX1X  6564 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT 648      
406-865 1 Dillon MT HLNAMTMAZMD  624H ONVOY SPECTRUM, LLC 648   2025-01-02   
406-865 2 Dillon MT GRFLMTMA7MD  453F ONVOY, LLC - MT 648   2021-07-05   
406-865 3 Dillon MT HLNAMTMAMMD  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 648   2010-10-01   
406-865 4 Dillon MT GRFLMTMA7MD  453F ONVOY, LLC - MT 648   2021-07-05   
406-865 7 Dillon MT GRFLMTMA7MD  453F ONVOY, LLC - MT 648   2011-07-01   
406-865 8 Dillon MT GRFLMTMAHMD  073H TELNYX LLC 648   2020-08-07   

Last updated: Sun, 26 Jan 2025 15:59:20 UTC

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