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: 748

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
406-748 A Colstrip MT CLSTMTMARS1  9636 QWEST CORPORATION 650      
406-748 0 Colstrip MT BLNGMTAS9MD  453F ONVOY, LLC - MT 650   2023-08-20   
406-748 1 Colstrip MT BLNGMTAS9MD  453F ONVOY, LLC - MT 650   2007-03-19   
406-748 2 Colstrip MT CLSTMTMARS1  9636 QWEST CORPORATION 650      
406-748 3 Colstrip MT CLSTMTMARS1  9636 QWEST CORPORATION 650      
406-748 4 Colstrip MT CLSTMTMARS1  9636 QWEST CORPORATION 650      
406-748 5 Colstrip MT CLSTMTMARS1  9636 QWEST CORPORATION 650      
406-748 6 Colstrip MT BLNGMTMALMD  994E BANDWIDTH.COM CLEC, LLC - MT 650   2009-02-13   
406-748 7 Colstrip MT BLNGMTWE6MD  9415 LEVEL 3 COMMUNICATIONS, LLC - MT 650   2005-02-21   
406-748 8 Colstrip MT BLNGMTWEBMD  771G TELEPORT COMMUNICATIONS AMERICA MT - LLC 650   2019-05-03   
406-748 9 Colstrip MT   6564 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT 650   2024-03-08   

Last updated: Tue, 16 Apr 2024 01:38:01 UTC

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