Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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OCN: 771G TELEPORT COMMUNICATIONS AMERICA MT - LLC

NPA-NXX BLOCK Rate Centre Region Switch LATA LIR Eff date Disc date
406-200 A Billings MT BLNGMTWEBMD  650      
406-200 6 Billings MT   650   2012-06-14   
406-283 9 Libby MT   960   2020-07-13   
406-299 6 Butte MT   648   2014-10-20   
406-300 6 Kalispell MT   648   2014-06-06   
406-303 A Missoula MT MSSLMTMAYMD  648      
406-303 6 Missoula MT   648   2012-06-14   
406-317 0 Missoula MT   648   2019-09-10   
406-333 5 Livingston MT   650   2018-04-23   
406-413 6 Billings MT   650   2017-08-21   
406-417 6 Helena MT   648   2014-11-20   
406-501 7 Whitehall MT   648   2020-08-24   
406-577 5 Bozeman MT   650   2014-08-06   
406-602 6 Bozeman MT   650   2017-06-27   
406-616 5 Three Forks MT   650   2020-08-24   
406-638 6 Hardin MT   650   2020-08-07   
406-743 4 Laurel MT   650   2016-04-08   
406-748 8 Colstrip MT   650   2019-05-03   
406-765 6 Plentywood MT   650   2021-05-04   
406-770 6 Great Falls MT   648   2013-03-18   
406-792 0 Butte MT   648   2019-05-27   
406-808 3 Havre MT   648   2016-03-21   
406-831 4 Billings MT   650   2017-04-14   
406-863 5 Whitefish MT   648   2015-05-22   
406-884 7 Polson MT   648   2015-06-15   
406-925 6 Dillon MT   648   2019-05-10   
406-943 5 Sidney MT   650   2015-02-25   
406-944 6 Miles City MT   650   2019-04-12   
406-968 6 Lewistown MT   648   2019-05-03   

Last updated: Fri, 01 Jul 2022 02:53:40 UTC

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