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: 612

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
406-612 A Swan Lake MT GRFLMTMA7MD  453F ONVOY, LLC - MT 648      
406-612 1 Swan Lake MT GRFLMTMA7MD  453F ONVOY, LLC - MT 648   2012-12-15   
406-612 2 Swan Lake MT GRFLMTMA7MD  453F ONVOY, LLC - MT 648   2012-12-15   
406-612 3 Swan Lake MT GRFLMTMA7MD  453F ONVOY, LLC - MT 648   2012-12-15   
406-612 4 Swan Lake MT GRFLMTMA7MD  453F ONVOY, LLC - MT 648   2017-11-20   
406-612 5 Swan Lake MT GRFLMTMA7MD  453F ONVOY, LLC - MT 648   2020-11-08   
406-612 6 Swan Lake MT GRFLMTMA7MD  453F ONVOY, LLC - MT 648   2019-09-15   
406-612 7 Swan Lake MT GRFLMTMA7MD  453F ONVOY, LLC - MT 648   2007-12-06   
406-612 8 Swan Lake MT GRFLMTMA7MD  453F ONVOY, LLC - MT 648   2011-03-05   
406-612 9 Swan Lake MT GRFLMTMAHMD  073H TELNYX LLC 648   2020-08-13   

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

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