406 Area Code has 656 prefixes

PrefixPrimary CityCarrier
406-200BillingsTeleport Communications America - Mt - Llc
406-201BillingsNew Cingular Wireless Pcs, Llc
406-202MissoulaNew Cingular Wireless Pcs, Llc
406-203MissoulaLevel 3 Communications, Llc - Mt
406-204MissoulaLevel 3 Communications, Llc - Mt
406-205MissoulaLevel 3 Communications, Llc - Mt
406-206BillingsLevel 3 Communications, Llc - Mt
406-207MissoulaNew Cingular Wireless Pcs, Llc
406-208BillingsNew Cingular Wireless Pcs, Llc
406-209BillingsNew Cingular Wireless Pcs, Llc
406-210HelenaCellco Partnership Dba Verizon Wireless - Mt
406-212MissoulaNew Cingular Wireless Pcs, Llc
406-213BillingsLevel 3 Communications, Llc - Mt
406-214HelenaCellco Partnership Dba Verizon Wireless - Mt
406-215Great FallsEltopia Communications, Llc - Mt
406-216Great Falls3 Rivers Telephone Cooperative, Inc. - Mt
406-217HelenaAt&t Local
406-218HelenaSprint Spectrum L.p.- Mt
406-219BillingsAt&t Local
406-220BillingsNew Cingular Wireless Pcs, Llc
406-221Great FallsAt&t Local
406-222LivingstonQwest Corporation
406-223BillingsCellco Partnership Dba Verizon Wireless - Mt
406-224BillingsCellco Partnership Dba Verizon Wireless - Mt
406-225BoulderQwest Corporation
406-226East Glacier ParkQwest Corporation
406-227East HelenaQwest Corporation
406-228GlasgowNemont Telephone Cooperative, Inc.
406-229MissoulaNew Cingular Wireless Pcs, Llc
406-230BillingsCellco Partnership Dba Verizon Wireless - Mt
406-231MissoulaNew Cingular Wireless Pcs, Llc
406-232Miles CityQwest Corporation
406-233Miles CityQwest Corporation
406-234Miles CityMid-rivers Telephone Cooperative, Inc.
406-235Wolf CreekQwest Corporation
406-236Fairfield3 Rivers Telephone Cooperative, Inc.
406-237BillingsQwest Corporation
406-238BillingsQwest Corporation
406-239MissoulaNew Cingular Wireless Pcs, Llc
406-240MissoulaNew Cingular Wireless Pcs, Llc
406-241HelenaNew Cingular Wireless Pcs, Llc
406-242MissoulaNew Cingular Wireless Pcs, Llc
406-243MissoulaQwest Corporation
406-244ClintonBlackfoot Telephone Cooperative, Inc.
406-245BillingsQwest Corporation
406-246ClintonBlackfoot Telephone Cooperative, Inc.
406-247BillingsQwest Corporation
406-248BillingsQwest Corporation
406-249HelenaCellco Partnership Dba Verizon Wireless - Mt
406-250HelenaCellco Partnership Dba Verizon Wireless - Mt
406-251MissoulaQwest Corporation
406-252BillingsQwest Corporation
406-253MissoulaNew Cingular Wireless Pcs, Llc
406-254BillingsQwest Corporation
406-255BillingsQwest Corporation
406-256BillingsQwest Corporation
406-257KalispellCenturytel Of Montana, Inc. Dba Centurylink
406-258MissoulaQwest Corporation
406-259BillingsQwest Corporation
406-260HelenaNew Cingular Wireless Pcs, Llc
406-261MissoulaNew Cingular Wireless Pcs, Llc
406-262HavreQwest Corporation
406-263GlasgowSagebrush Cellular, Inc.
406-264Fairfield3 Rivers Telephone Cooperative, Inc.
406-265HavreQwest Corporation
406-266TownsendQwest Corporation
406-267WisdomSouthern Montana Telephone Co.
406-268Great FallsQwest Corporation
406-269MissoulaNew Cingular Wireless Pcs, Llc
406-270HelenaCellco Partnership Dba Verizon Wireless - Mt
406-271Baxter3 Rivers Telephone Cooperative, Inc. - Mt
406-272BillingsOnvoy, Llc - Mt
406-273LoloQwest Corporation
406-274HelenaAt&t Local
406-275RonanRonan Telephone Co.
406-276Fairfield3 Rivers Telephone Cooperative, Inc.
406-277Fairfield3 Rivers Telephone Cooperative, Inc.
406-278ConradQwest Corporation
406-279Fairfield3 Rivers Telephone Cooperative, Inc.
406-280MissoulaNew Cingular Wireless Pcs, Llc
406-281BillingsAt&t Local
406-282ManhattanQwest Corporation
406-283LibbyMontana Sky West Llc - Mt
406-284ManhattanQwest Corporation
406-285Three ForksQwest Corporation
406-286ReserveNemont Telephone Cooperative, Inc.
406-287WhitehallQwest Corporation
406-288AlbertonBlackfoot Telephone Cooperative, Inc.
406-289MissoulaNew Cingular Wireless Pcs, Llc
406-290BillingsOnvoy, Llc - Mt
406-291LibbyCellco Partnership Dba Verizon Wireless - Mt
406-292HavreTriangle Telephone Cooperative Assn., Inc.
406-293LibbyCitizens Telecom Co Of Mt-frontier Comm Of Mt
406-294BillingsOne Eighty Communications, Inc. - Mt
406-295TroyCitizens Telecom Co Of Mt-frontier Comm Of Mt
406-296EurekaCitizens Telecom Co Of Mt-frontier Comm Of Mt
406-297EurekaInterbel Telephone Cooperative, Inc. - Mt
406-298BillingsCellco Partnership Dba Verizon Wireless - Mt
406-299MissoulaLevel 3 Communications, Llc - Mt
406-300Great FallsBresnan Broadband Of Montana, Llc - Mt (charter)