Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
406-743 5 Laurel MT 453F ONVOY, LLC - MT 650   2020-11-10   
406-747 0 Fairview MT 453F ONVOY, LLC - MT 650   2020-01-05   
406-747 2 Fairview MT 453F ONVOY, LLC - MT 650   2020-01-05   
406-747 4 Fairview MT 453F ONVOY, LLC - MT 650   2019-10-28   
406-747 6 Fairview MT 453F ONVOY, LLC - MT 650   2020-11-10   
406-747 7 Fairview MT 453F ONVOY, LLC - MT 650   2013-09-14   
406-747 8 Fairview MT 453F ONVOY, LLC - MT 650   2007-03-19   
406-748 0 Colstrip MT 453F ONVOY, LLC - MT 650   2023-08-20   
406-748 1 Colstrip MT 453F ONVOY, LLC - MT 650   2007-03-19   
406-763 7 Gallatin Gateway MT 453F ONVOY, LLC - MT 650   2007-04-14   
406-780 3 Columbus MT 453F ONVOY, LLC - MT 650   2019-09-15   
406-780 4 Columbus MT 453F ONVOY, LLC - MT 650   2019-09-15   
406-780 5 Columbus MT 453F ONVOY, LLC - MT 650   2020-01-05   
406-780 7 Columbus MT 453F ONVOY, LLC - MT 650   2011-10-21   
406-780 8 Columbus MT 453F ONVOY, LLC - MT 650   2019-10-28   
406-780 9 Columbus MT 453F ONVOY, LLC - MT 650   2020-01-05   
406-794 A Billings MT 453F ONVOY, LLC - MT 650      
406-794 0 Billings MT 453F ONVOY, LLC - MT 650   2006-05-08   
406-795 5 Wibaux MT 453F ONVOY, LLC - MT 650   2011-07-17   
406-795 6 Wibaux MT 453F ONVOY, LLC - MT 650   2020-11-10   
406-795 7 Wibaux MT 453F ONVOY, LLC - MT 650   2007-03-19   
406-795 8 Wibaux MT 453F ONVOY, LLC - MT 650   2021-03-07   
406-796 0 Wibaux MT 453F ONVOY, LLC - MT 650   2021-03-07   
406-796 1 Wibaux MT 453F ONVOY, LLC - MT 650   2019-09-15   
406-796 3 Wibaux MT 453F ONVOY, LLC - MT 650   2019-09-15   
406-796 4 Wibaux MT 453F ONVOY, LLC - MT 650   2021-07-08   
406-800 A Bridger MT 453F ONVOY, LLC - MT 650      
406-800 0 Bridger MT 453F ONVOY, LLC - MT 650   2014-01-10   
406-800 2 Bridger MT 453F ONVOY, LLC - MT 650   2021-03-07   
406-800 4 Bridger MT 453F ONVOY, LLC - MT 650   2020-11-10   
406-800 5 Bridger MT 453F ONVOY, LLC - MT 650   2020-11-10   
406-800 8 Bridger MT 453F ONVOY, LLC - MT 650   2014-01-10   
406-804 A Gardiner MT 453F ONVOY, LLC - MT 650      
406-804 1 Gardiner MT 453F ONVOY, LLC - MT 650   2021-07-05   
406-804 3 Gardiner MT 453F ONVOY, LLC - MT 650   2021-03-07   
406-804 4 Gardiner MT 453F ONVOY, LLC - MT 650   2019-10-20   
406-804 5 Gardiner MT 453F ONVOY, LLC - MT 650   2019-10-20   
406-804 6 Gardiner MT 453F ONVOY, LLC - MT 650   2020-01-05   
406-804 7 Gardiner MT 453F ONVOY, LLC - MT 650   2020-01-05   
406-804 8 Gardiner MT 453F ONVOY, LLC - MT 650   2021-03-07   
406-812 A Laurel MT 453F ONVOY, LLC - MT 650      
406-812 4 Laurel MT 453F ONVOY, LLC - MT 650   2019-09-15   
406-812 5 Laurel MT 453F ONVOY, LLC - MT 650   2019-10-28   
406-812 7 Laurel MT 453F ONVOY, LLC - MT 650   2011-11-28   
406-812 8 Laurel MT 453F ONVOY, LLC - MT 650   2020-01-05   
406-813 5 Belgrade MT 453F ONVOY, LLC - MT 650   2012-12-17   
406-813 6 Belgrade MT 453F ONVOY, LLC - MT 650   2012-12-17   
406-813 7 Belgrade MT 453F ONVOY, LLC - MT 650   2012-12-17   
406-815 0 Red Lodge MT 453F ONVOY, LLC - MT 650   2023-08-20   
406-815 4 Red Lodge MT 453F ONVOY, LLC - MT 650   2020-11-10   

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Last updated: Sun, 17 May 2026 03:26:51 UTC

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