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: 317

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
406-317 A Missoula MT GRFLMTMAHMD  073H TELNYX LLC 648      
406-317 0 Missoula MT MSSLMTMAYMD  771G TELEPORT COMMUNICATIONS AMERICA MT - LLC 648   2019-09-10   
406-317 1 Missoula MT MSSLMTEHPS0  008E BRESNAN BROADBAND OF MONTANA, LLC - MT [CHARTER] 648   2012-05-06   
406-317 2 Missoula MT HLNAMTMAX1X  6564 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT 648   2013-03-12   
406-317 3 Missoula MT HLNAMTMAX1X  6564 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT 648   2013-03-12   
406-317 4 Missoula MT GRFLMTMAHMD  073H TELNYX LLC 648   2020-01-16   
406-317 5 Missoula MT GRFLMTMA7MD  453F ONVOY, LLC - MT 648   2021-02-19   
406-317 6 Missoula MT GRFLMTMA7MD  453F ONVOY, LLC - MT 648   2021-02-19   
406-317 7 Missoula MT MSSLMTMA0MD  9415 LEVEL 3 COMMUNICATIONS, LLC - MT 648   2020-09-19   
406-317 8 Missoula MT GRFLMTMA7MD  453F ONVOY, LLC - MT 648   2021-02-19   
406-317 9 Missoula MT GRFLMTMA7MD  453F ONVOY, LLC - MT 648   2021-02-19   

Last updated: Fri, 22 Mar 2024 03:02:44 UTC

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