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: 807

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
406-807 A East Glacier Park MT GRFLMTMA7MD  453F ONVOY, LLC - MT 648      
406-807 0 East Glacier Park MT GRFLMTMAHMD  073H TELNYX LLC 648   2021-06-25   
406-807 1 East Glacier Park MT GRFLMTMAKMD  624H ONVOY SPECTRUM, LLC 648   2024-12-27   
406-807 7 East Glacier Park MT GRFLMTMA7MD  453F ONVOY, LLC - MT 648   2021-08-28   
406-807 8 East Glacier Park MT GRFLMTMA7MD  453F ONVOY, LLC - MT 648   2021-06-24   

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

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