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: 662

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
406-662 A Bridger MT BRDGMT01RS1  9636 QWEST CORPORATION 650      
406-662 0 Bridger MT   9415 LEVEL 3 COMMUNICATIONS, LLC - MT 650   2004-11-13   
406-662 1 Bridger MT   994E BANDWIDTH.COM CLEC, LLC - MT 650   2008-11-26   
406-662 2 Bridger MT   935G TRI TEL, INC. - MT 650   2013-01-28   
406-662 3 Bridger MT   9636 QWEST CORPORATION 650      
406-662 4 Bridger MT   453F ONVOY, LLC - MT 650   2011-04-29   
406-662 5 Bridger MT   9636 QWEST CORPORATION 650      
406-662 6 Bridger MT   624H ONVOY SPECTRUM, LLC 650   2024-03-22   
406-662 7 Bridger MT   453F ONVOY, LLC - MT 650   2007-04-14   
406-662 8 Bridger MT   994E BANDWIDTH.COM CLEC, LLC - MT 650   2013-06-23   
406-662 9 Bridger MT   9636 QWEST CORPORATION 650      

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

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