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: 318

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
406-318 A Billings MT BLNGMTMARMD  357E YMAX COMMUNICATIONS CORP. - MT 650      
406-318 0 Billings MT BLNGMTMARMD  357E YMAX COMMUNICATIONS CORP. - MT 650   2011-04-03   
406-318 1 Billings MT BLNGMTMARMD  357E YMAX COMMUNICATIONS CORP. - MT 650   2011-04-03   
406-318 2 Billings MT BLNGMTWE9MD  073H TELNYX LLC 650   2023-01-09   
406-318 3 Billings MT BLNGMT939MD  145J TERRA NOVA TELECOM INC. 650   2023-06-24   
406-318 5 Billings MT BLNGMTMALMD  994E BANDWIDTH.COM CLEC, LLC - MT 650   2015-01-04   
406-318 6 Billings MT BLNGMTMALMD  994E BANDWIDTH.COM CLEC, LLC - MT 650   2015-01-04   
406-318 7 Billings MT BLNGMTMALMD  994E BANDWIDTH.COM CLEC, LLC - MT 650   2015-01-04   
406-318 8 Billings MT BLNGMTAS9MD  453F ONVOY, LLC - MT 650   2015-12-10   
406-318 9 Billings MT BLNGMTMALMD  994E BANDWIDTH.COM CLEC, LLC - MT 650   2015-06-29   

Last updated: Fri, 22 Mar 2024 03:02:44 UTC

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