Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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OCN: 935G TRI TEL, INC. - MT

NPA-NXX BLOCK Rate Centre Region Switch LATA LIR Eff date Disc date
406-445 4 Red Lodge MT BLNGMTMATMD  650   2013-01-28   
406-551 8 Bozeman MT BLNGMTMATMD  650   2017-09-02   
406-606 A Billings MT BLNGMTMATMD  650      
406-606 1 Billings MT BLNGMTMATMD  650   2013-01-28   
406-623 2 Hardin MT BLNGMTMATMD  650   2013-01-28   
406-633 7 Laurel MT BLNGMTMATMD  650   2013-01-28   
406-662 2 Bridger MT BLNGMTMATMD  650   2013-01-28   
406-668 2 Fromberg MT BLNGMTMATMD  650   2013-01-28   
406-905 2 Joliet MT BLNGMTMATMD  650   2013-01-28   

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

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