Local Calling Guide

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Boulder, MT

NPA-NXX BLOCK Switch OCN LATA LIR Eff date Disc date
406-225 A BLDRMTMARS1  9636 QWEST CORPORATION 648      
406-225 0 GRFLMTMA7MD  453F ONVOY, LLC - MT 648   2012-12-10   
406-225 1 GRFLMTMAKMD  624H ONVOY SPECTRUM, LLC 648   2021-11-14   
406-225 3 BLDRMTMARS1  9636 QWEST CORPORATION 648      
406-225 4 BLDRMTMARS1  9636 QWEST CORPORATION 648      
406-225 6 GRFLMTMA7MD  453F ONVOY, LLC - MT 648   2022-10-29   
406-225 7 GRFLMTMA7MD  453F ONVOY, LLC - MT 648   2007-03-19   
406-225 8 GRFLMTMA7MD  453F ONVOY, LLC - MT 648   2022-10-29   
406-225 9 BLDRMTMARS1  9636 QWEST CORPORATION 648      
406-313 A GRFLMTMA7MD  453F ONVOY, LLC - MT 648      
406-313 0 GRFLMTMA7MD  453F ONVOY, LLC - MT 648   2013-01-17   
406-313 1 HLNAMTHH5MD  792K CHARTER IP ENABLED SERVICES, LLC 648   2019-06-14   
406-313 2 GRFLMTMA7MD  453F ONVOY, LLC - MT 648   2020-04-04   
406-313 3 GRFLMTMA7MD  453F ONVOY, LLC - MT 648   2019-10-28   
406-313 4 GRFLMTMA7MD  453F ONVOY, LLC - MT 648   2020-01-03   
406-313 5 GRFLMTMA7MD  453F ONVOY, LLC - MT 648   2020-02-23   
406-313 6 GRFLMTMA7MD  453F ONVOY, LLC - MT 648   2013-01-17   
406-313 7 HLNAMTMAUMD  508J CENTURYLINK COMMUNICATIONS, LLC 648   2014-05-24   
406-313 8 GRFLMTMA7MD  453F ONVOY, LLC - MT 648   2020-04-04   
406-313 9 GRFLMTMAHMD  073H TELNYX LLC 648   2020-08-07   
406-316 A   453F ONVOY, LLC - MT 648      
406-316 0 GRFLMTMAKMD  624H ONVOY SPECTRUM, LLC 648   2021-11-14   
406-316 1 GRFLMTMA7MD  453F ONVOY, LLC - MT 648   2021-04-22   
406-316 2 GRFLMTMAKMD  624H ONVOY SPECTRUM, LLC 648   2021-07-18   
406-316 3 GRFLMTMA7MD  453F ONVOY, LLC - MT 648   2020-06-05   
406-316 4 GRFLMTMA7MD  453F ONVOY, LLC - MT 648   2020-11-08   
406-316 5 GRFLMTMA7MD  453F ONVOY, LLC - MT 648   2021-05-15   
406-316 6 GRFLMTMA7MD  453F ONVOY, LLC - MT 648   2021-08-28   
406-316 7 GRFLMTMA7MD  453F ONVOY, LLC - MT 648   2021-10-11   
406-316 8 GRFLMTMA7MD  453F ONVOY, LLC - MT 648   2021-11-18   
406-512 A MSSLMTMA0MD  9415 LEVEL 3 COMMUNICATIONS, LLC - MT 648      
406-512 0 GRFLMTMAHMD  073H TELNYX LLC 648   2023-07-16   
406-512 1 MSSLMTMA0MD  9415 LEVEL 3 COMMUNICATIONS, LLC - MT 648   2023-04-25   
406-512 2 GRFLMTMA7MD  453F ONVOY, LLC - MT 648   2023-04-26   
406-512 8 GRFLMTMA7MD  453F ONVOY, LLC - MT 648   2023-08-20   

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

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