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: 416

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
406-416 A Forsyth MT BLNGMTAS9MD  453F ONVOY, LLC - MT 650      
406-416 0 Forsyth MT   453F ONVOY, LLC - MT 650   2021-07-05   
406-416 1 Forsyth MT   6564 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT 650   2021-12-23   
406-416 2 Forsyth MT   453F ONVOY, LLC - MT 650   2021-03-07   
406-416 3 Forsyth MT   6564 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT 650   2023-06-01   
406-416 4 Forsyth MT   453F ONVOY, LLC - MT 650   2020-08-08   
406-416 5 Forsyth MT   453F ONVOY, LLC - MT 650   2020-08-08   
406-416 6 Forsyth MT   453F ONVOY, LLC - MT 650   2020-11-10   
406-416 7 Forsyth MT   453F ONVOY, LLC - MT 650   2020-11-10   
406-416 8 Forsyth MT   939H COMMIO, LLC 650   2022-06-06   
406-416 9 Forsyth MT   6564 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT 650   2022-12-13   

Last updated: Tue, 13 Jan 2026 21:50:02 UTC

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