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: 309

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
406-309 A Kalispell MT KLSLMTAZDS0  008E BRESNAN BROADBAND OF MONTANA, LLC - MT [CHARTER] 648      
406-309 0 Kalispell MT HLNAMTMAX1X  6564 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT 648   2013-03-12   
406-309 1 Kalispell MT HLNAMTMAX1X  6564 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT 648   2013-03-12   
406-309 2 Kalispell MT KLSLMTAZDS0  008E BRESNAN BROADBAND OF MONTANA, LLC - MT [CHARTER] 648   2011-12-01   
406-309 3 Kalispell MT HLNAMTMAMMD  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 648   2019-02-14   
406-309 4 Kalispell MT HLNAMTMAX1X  6564 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT 648   2012-09-10   
406-309 5 Kalispell MT HLNAMTMAX1X  6564 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT 648   2012-10-06   
406-309 6 Kalispell MT MSSLMTMA0MD  9415 LEVEL 3 COMMUNICATIONS, LLC - MT 648   2018-08-26   
406-309 7 Kalispell MT GRFLMTMAHMD  073H TELNYX LLC 648   2020-08-13   
406-309 8 Kalispell MT GRFLMTMA7MD  453F ONVOY, LLC - MT 648   2019-02-19   
406-309 9 Kalispell MT GRFLMTMA7MD  453F ONVOY, LLC - MT 648   2019-02-19   

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

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