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: 446

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
406-446 A Red Lodge MT RDLGMTMARS1  9636 QWEST CORPORATION 650      
406-446 0 Red Lodge MT RDLGMTMARS1  9636 QWEST CORPORATION 650      
406-446 1 Red Lodge MT RDLGMTMARS1  9636 QWEST CORPORATION 650      
406-446 2 Red Lodge MT RDLGMTMARS1  9636 QWEST CORPORATION 650      
406-446 3 Red Lodge MT RDLGMTMARS1  9636 QWEST CORPORATION 650      
406-446 4 Red Lodge MT RDLGMTMARS1  9636 QWEST CORPORATION 650      
406-446 6 Red Lodge MT BLNGMTAS9MD  453F ONVOY, LLC - MT 650   2019-09-15   
406-446 7 Red Lodge MT BLNGMTAS9MD  453F ONVOY, LLC - MT 650   2011-10-24   
406-446 8 Red Lodge MT BLNGMTAS9MD  453F ONVOY, LLC - MT 650   2019-10-28   
406-446 9 Red Lodge MT RDLGMTMARS1  9636 QWEST CORPORATION 650      

Last updated: Thu, 16 Oct 2025 03:04:18 UTC

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