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: 884

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
406-884 A Polson MT PLSNMTXCRS0  2249 CENTURYTEL OF MONTANA, INC. DBA CENTURYLINK 648      
406-884 1 Polson MT MSSLMTMACMD  5562 METROPCS, INC. 648   2023-09-08   
406-884 2 Polson MT MSSLMTMA0MD  9415 LEVEL 3 COMMUNICATIONS, LLC - MT 648   2015-10-23   
406-884 4 Polson MT GRFLMTMA7MD  453F ONVOY, LLC - MT 648   2019-10-28   
406-884 6 Polson MT PLSNMTXCRS0  2249 CENTURYTEL OF MONTANA, INC. DBA CENTURYLINK 648      
406-884 7 Polson MT MSSLMTMAYMD  771G TELEPORT COMMUNICATIONS AMERICA MT - LLC 648   2015-06-15   

Last updated: Sun, 26 Jan 2025 15:59:20 UTC

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