406 Area Code in Montana, United States
Description
Area code 406 is the sole area code for the entire state of Montana, making it one of the most iconic and easily recognizable area codes in the United States. Established in 1947, it has never been split or overlaid, serving all cities including Billings, Missoula, Bozeman, Helena, and Great Falls. The 406 area code represents Montana’s vast landscapes, low population density, and strong state identity. It’s widely used in branding for local businesses, tourism, and cultural events, symbolizing the rugged independence and natural beauty of Big Sky Country. 406 remains a source of pride for Montanans and a standout among area codes for its uniqueness and statewide reach.
Time & Time Zone
Time zone:
Mountain (GMT -07:00) Current time:
Map
Major Cities
| City | Prefixes |
|---|---|
| | |
| | |
| | |
| | |
| | |
Counties
| County | Prefixes |
|---|---|
| Yellowstone | |
| Missoula | |
| Gallatin | |
| Cascade | |
| Flathead | |
| Lewis And Clark | |
| Lake | |
| Silver Bow | |
| Rosebud | |
| Custer | |
| Hill | |
| Roosevelt | |
| Fergus | |
| Richland | |
| Valley | |
| Dawson | |
| Carbon | |
| Ravalli | |
| Pondera | |
| Big Horn | |
| Park | |
| Beaverhead | |
| Toole | |
| Jefferson | |
| Chouteau | |
| Sheridan | |
| Stillwater | |
| Glacier | |
| Phillips | |
| Musselshell | |
| Lincoln | |
| Teton | |
| Fallon | |
| Deer Lodge | |
| Mineral | |
| Judith Basin | |
| Carter | |
| Madison | |
| Powell | |
| Powder River | |
| Sanders | |
| Prairie | |
| Blaine | |
| Mccone | |
| Wibaux | |
| Sweet Grass | |
| Daniels | |
| Broadwater | |
| Liberty | |
| Golden Valley | |
| Garfield | |
| Wheatland | |
| Meagher | |
| Granite | |
| Treasure | |
| Harding | |
| Petroleum |
Telephone Carriers
| Carrier | Type | Prefixes (%) |
|---|---|---|
| Qwest Corporation | Landline | 24% |
| New Cingular Wireless Pcs Llc | Wireless | 10% |
| Cellco Partnership Dba Verizon Wireless Mt | Wireless | 10% |
| Mid Rivers Telephone Cooperative Inc | Landline | 7% |
| Nemont Telephone Cooperative Inc | Landline | 5% |
| 3 Rivers Telephone Cooperative Inc | Landline | 5% |
| Mtpcs Llc | Wireless | 4% |
| Triangle Telephone Cooperative Assn Inc | Landline | 4% |
| Blackfoot Telephone Cooperative Inc | Landline | 3% |
| Bresnan Broadband Of Montana Llc Mt | Landline | 3% |
| Level 3 Communications Llc Mt | Landline | 3% |
| Centurytel Of Montana Inc Dba Centurylink | Landline | 3% |
| Central Montana Communications Inc | Landline | 2% |
| 360 Networks Usa Inc Mt | Landline | 2% |
| Cable Communications Corporation | Wireless | 2% |
| Project Telephone Co Inc | Landline | 2% |
| Range Telephone Cooperative Inc | Landline | 2% |
| Northern Telephone Cooperative Inc | Landline | 1% |
| Sprint Spectrum L P Mt | Wireless | 1% |
| 3 Rivers Telephone Cooperative Inc Mt | Landline | 1% |
| Blackfoot Communications Inc Mt | Landline | 1% |
| One Eighty Communications Inc Mt | Landline | 1% |
| Citizens Telecom Co Of Mt Frontier Comm Of Mt | Landline | 1% |
| At T Local | Landline | 1% |
| Ronan Telephone Co | Landline | 1% |
| Southern Montana Telephone Co | Landline | 1% |
| Hot Springs Telephone Co | Landline | < 1% |
| Midstate Communications Inc | Landline | < 1% |
| Interbel Telephone Cooperative Inc | Landline | < 1% |
| Lincoln Telephone Company Inc | Landline | < 1% |
| Western Montana Communitytel Inc Mt | Landline | < 1% |
| Range Telephone Cooperative Inc Mt | Landline | < 1% |
| Smart Call Llc | Landline | < 1% |
| Eltopia Communications Llc Mt | Landline | < 1% |
| 365 Wireless Llc | Wireless | < 1% |
| West River Cooperative Telephone Company | Landline | < 1% |
| Pacific Telecom Communications Group Mt | Landline | < 1% |
| Bandwidth Com Clec Llc Mt | Landline | < 1% |
| Mcimetro Access Transmission Services Llc | Landline | < 1% |
| Sagebrush Cellular Inc | Wireless | < 1% |
| Interbel Telephone Cooperative Inc Mt | Landline | < 1% |
| Tc Systems Inc Mt | Landline | < 1% |
| Tct West Inc | Landline | < 1% |
| Polson Communitytel Inc Mt | Landline | < 1% |
| Ymax Communications Corp Mt | Landline | < 1% |
| Tri Tel Inc Mt | Landline | < 1% |
| Montana Opticom Llc Mt | Landline | < 1% |
| Nexus Communications Inc | Wireless | < 1% |
| Reservation Telephone Cooperative | Landline | < 1% |
| Rt Communications | Landline | < 1% |
| Contact Communications Inc Wyoming | Landline | < 1% |
Prefixes
| Prefix | City | Carrier | Type |
|---|---|---|---|
| Butte | Qwest Corporation | Landline | |
| Box Elder | Triangle Telephone Cooperative Assn., Inc. | Landline | |
| Missoula | Qwest Corporation | Landline | |
| Wolf Point | Mid-rivers Telephone Cooperative, Inc. | Landline | |
| Eureka | Interbel Telephone Cooperative, Inc. | Landline | |
| Shelby | Mtpcs, Llc | Wireless | |
| Bozeman | Qwest Corporation | Landline | |
| East Helena | Qwest Corporation | Landline | |
| Bridger | Qwest Corporation | Landline | |
| Columbus | Cellco Partnership Dba Verizon Wireless - Mt | Wireless | |
| Power | 3 Rivers Telephone Cooperative, Inc. | Landline | |
| Dillon | Cellco Partnership Dba Verizon Wireless - Mt | Wireless | |
| Helena | 3 Rivers Telephone Cooperative, Inc. - Mt | Landline | |
| Polson | Bresnan Broadband of Montana, Llc - Mt | Landline | |
| Elmo | Centurytel of Montana, Inc. Dba Centurylink | Landline | |
| Three Forks | New Cingular Wireless Pcs, Llc | Wireless | |
| Red Lodge | Cellco Partnership Dba Verizon Wireless - Mt | Wireless | |
| Big Timber | Triangle Telephone Cooperative Assn., Inc. | Landline | |
| Red Lodge | Cellco Partnership Dba Verizon Wireless - Mt | Wireless | |
| Great Falls | Bresnan Broadband of Montana, Llc - Mt | Landline | |
| Lolo | New Cingular Wireless Pcs, Llc | Wireless | |
| Box Elder | Cellco Partnership Dba Verizon Wireless - Mt | Wireless | |
| Great Falls | 360networks (usa) Inc. - Mt | Landline | |
| Molt | Triangle Telephone Cooperative Assn., Inc. | Landline | |
| Bozeman | 360networks (usa) Inc. - Mt | Landline | |
| Charlo | Ronan Telephone Co. | Landline | |
| Frannie | Tct West, Inc. | Landline | |
| Alzada | Cable & Communications Corporation | Wireless | |
| Wibaux | Mid-rivers Telephone Cooperative, Inc. | Landline | |
| Ennis | 3 Rivers Telephone Cooperative, Inc. | Landline | |
| Polson | Bresnan Broadband of Montana, Llc - Mt | Landline | |
| Helena | Ymax Communications Corp. - Mt | Landline | |
| Superior | Blackfoot Telephone Cooperative, Inc. | Landline | |
| Billings | Mtpcs, Llc | Wireless | |
| Glendive | Qwest Corporation | Landline | |
| Hammond | Range Telephone Cooperative, Inc. | Landline | |
| Chester | Triangle Telephone Cooperative Assn., Inc. | Landline | |
| Ethridge | Northern Telephone Cooperative, Inc. | Landline | |
| Bozeman | Sprint Spectrum L.p.- Mt | Wireless | |
| Havre | Triangle Telephone Cooperative Assn., Inc. | Landline | |
| Polaris | Southern Montana Telephone Co. | Landline | |
| Laurel | Level 3 Communications, Llc - Mt | Landline | |
| Denton | Central Montana Communications, Inc. | Landline | |
| Whitlash | Northern Telephone Cooperative, Inc. | Landline | |
| Butte | Level 3 Communications, Llc - Mt | Landline | |
| Huntley | Project Telephone Co., Inc. | Landline | |
| Helena | Qwest Corporation | Landline | |
| Missoula | Mtpcs, Llc | Wireless | |
| Lambert | Cable & Communications Corporation | Wireless | |
| Helena | New Cingular Wireless Pcs, Llc | Wireless | |
| Sidney | Mid-rivers Telephone Cooperative, Inc. | Landline | |
| Miles City | New Cingular Wireless Pcs, Llc | Wireless | |
| Ronan | Ronan Telephone Co. | Landline | |
| Townsend | New Cingular Wireless Pcs, Llc | Wireless | |
| Lodge Grass | Project Telephone Co., Inc. | Landline | |
| Wibaux | Mid-rivers Telephone Cooperative, Inc. | Landline | |
| Bearcreek | Qwest Corporation | Landline | |
| Havre | Cellco Partnership Dba Verizon Wireless - Mt | Wireless | |
| Elliston | Blackfoot Telephone Cooperative, Inc. | Landline | |
| Missoula | Cellco Partnership Dba Verizon Wireless - Mt | Wireless | |
| Gallatin Gateway | 3 Rivers Telephone Cooperative, Inc. | Landline | |
| Missoula | Cellco Partnership Dba Verizon Wireless - Mt | Wireless | |
| Ronan | Ronan Telephone Co. | Landline | |
| Richey | Mid-rivers Telephone Cooperative, Inc. | Landline | |
| Missoula | Tc Systems, Inc. - Mt | Landline | |
| Butte | Qwest Corporation | Landline | |
| Conrad | New Cingular Wireless Pcs, Llc | Wireless | |
| Miles City | Qwest Corporation | Landline | |
| Three Forks | 360networks (usa) Inc. - Mt | Landline | |
| Terry | Mid-rivers Telephone Cooperative, Inc. | Landline | |
| Laurel | 360networks (usa) Inc. - Mt | Landline | |
| Homestead | Nemont Telephone Cooperative, Inc. | Landline | |
| Gallatin Gateway | Cellco Partnership Dba Verizon Wireless - Mt | Wireless | |
| Fort Shaw | New Cingular Wireless Pcs, Llc | Wireless | |
| Sunburst | Northern Telephone Cooperative, Inc. | Landline | |
| Marion | Centurytel of Montana, Inc. Dba Centurylink | Landline | |
| Bozeman | Qwest Corporation | Landline | |
| Ulm | Qwest Corporation | Landline | |
| Anaconda | Qwest Corporation | Landline | |
| Brady | 3 Rivers Telephone Cooperative, Inc. | Landline | |
| Emigrant | Qwest Corporation | Landline | |
| Silver Star | 3 Rivers Telephone Cooperative, Inc. | Landline | |
| Helena | Bresnan Broadband of Montana, Llc - Mt | Landline | |
| Roundup | Mid-rivers Telephone Cooperative, Inc. | Landline | |
| Great Falls | 3 Rivers Telephone Cooperative, Inc. - Mt | Landline | |
| Dagmar | Nemont Telephone Cooperative, Inc. | Landline | |
| Helena | Level 3 Communications, Llc - Mt | Landline | |
| Fairview | Mid-rivers Telephone Cooperative, Inc. | Landline | |
| Billings | Tri Tel, Inc. - Mt | Landline | |
| Plentywood | Nemont Telephone Cooperative, Inc. | Landline | |
| Shelby | Qwest Corporation | Landline | |
| Melrose | 3 Rivers Telephone Cooperative, Inc. | Landline | |
| Missoula | Level 3 Communications, Llc - Mt | Landline | |
| Biddle | Range Telephone Cooperative, Inc. | Landline | |
| Condon | Blackfoot Telephone Cooperative, Inc. | Landline | |
| Butte | Qwest Corporation | Landline | |
| Chinook | Triangle Telephone Cooperative Assn., Inc. | Landline | |
| Dodson | Triangle Telephone Cooperative Assn., Inc. | Landline | |
| Fishtail | Project Telephone Co., Inc. | Landline | |
| Dell | 3 Rivers Telephone Cooperative, Inc. | Landline | |
| Bozeman | Cellco Partnership Dba Verizon Wireless - Mt | Wireless | |
| Shelby | New Cingular Wireless Pcs, Llc | Wireless | |
| Billings | Qwest Corporation | Landline | |
| Red Lodge | Cellco Partnership Dba Verizon Wireless - Mt | Wireless | |
| Saco | Nemont Telephone Cooperative, Inc. | Landline | |
| Missoula | Bresnan Broadband of Montana, Llc - Mt | Landline | |
| Cohagen | Mid-rivers Telephone Cooperative, Inc. | Landline | |
| Great Falls | Qwest Corporation | Landline | |
| Fairview | Qwest Corporation | Landline | |
| Bozeman | Qwest Corporation | Landline | |
| Ismay | Mid-rivers Telephone Cooperative, Inc. | Landline | |
| Ekalaka | West River Cooperative Telephone Company | Landline | |
| Havre | Triangle Telephone Cooperative Assn., Inc. | Landline | |
| Kalispell | Centurytel of Montana, Inc. Dba Centurylink | Landline | |
| Bozeman | Qwest Corporation | Landline | |
| Sun River | 3 Rivers Telephone Cooperative, Inc. | Landline | |
| Hilger | Central Montana Communications, Inc. | Landline | |
| Grass Range | Cable & Communications Corporation | Wireless | |
| Belfry | 360networks (usa) Inc. - Mt | Landline | |
| Browning | 3 Rivers Telephone Cooperative, Inc. | Landline | |
| Eureka | Citizens Telecom Co of Mt-frontier Comm of Mt | Landline | |
| Culbertson | Mid-rivers Telephone Cooperative, Inc. | Landline | |
| Pompeys Pillar | Project Telephone Co., Inc. | Landline | |
| Wolf Point | Cable & Communications Corporation | Wireless | |
| Saltese | Blackfoot Telephone Cooperative, Inc. | Landline | |
| Seeley Lake | Cellco Partnership Dba Verizon Wireless - Mt | Wireless | |
| Billings | At&t Local | Landline | |
| Shelby | Cellco Partnership Dba Verizon Wireless - Mt | Wireless | |
| Deer Lodge | Qwest Corporation | Landline | |
| Highwood | 3 Rivers Telephone Cooperative, Inc. | Landline | |
| Hingham | Triangle Telephone Cooperative Assn., Inc. | Landline | |
| Lavina | Triangle Telephone Cooperative Assn., Inc. | Landline | |
| Alzada | Rt Communications | Landline | |
| Conrad | New Cingular Wireless Pcs, Llc | Wireless | |
| Belt | 3 Rivers Telephone Cooperative, Inc. | Landline | |
| Dixon | Blackfoot Telephone Cooperative, Inc. | Landline | |
| Bigfork | New Cingular Wireless Pcs, Llc | Wireless | |
| Libby | Cellco Partnership Dba Verizon Wireless - Mt | Wireless | |
| Rapelje | Triangle Telephone Cooperative Assn., Inc. | Landline | |
| Missoula | Qwest Corporation | Landline | |
| Frenchtown | Level 3 Communications, Llc - Mt | Landline | |
| Hays | Triangle Telephone Cooperative Assn., Inc. | Landline | |
| Forsyth | Range Telephone Cooperative, Inc. - Mt | Landline | |
| Fort Smith | Project Telephone Co., Inc. | Landline | |
| Bonner | Blackfoot Telephone Cooperative, Inc. | Landline | |
| Worden | Project Telephone Co., Inc. | Landline | |
| Hardin | New Cingular Wireless Pcs, Llc | Wireless | |
| Lodge Grass | 360networks (usa) Inc. - Mt | Landline | |
| Great Falls | New Cingular Wireless Pcs, Llc | Wireless | |
| Billings | New Cingular Wireless Pcs, Llc | Wireless | |
| Essex | Qwest Corporation | Landline | |
| Havre | Cellco Partnership Dba Verizon Wireless - Mt | Wireless | |
| Boulder | 360networks (usa) Inc. - Mt | Landline | |
| Wilsall | Qwest Corporation | Landline | |
| Glendive | Cellco Partnership Dba Verizon Wireless - Mt | Wireless | |
| Helena | Qwest Corporation | Landline | |
| Sumatra | Mid-rivers Telephone Cooperative, Inc. | Landline | |
| Glendive | Cable & Communications Corporation | Wireless | |
| Norris | 3 Rivers Telephone Cooperative, Inc. | Landline | |
| Choteau | 3 Rivers Telephone Cooperative, Inc. | Landline | |
| Kalispell | New Cingular Wireless Pcs, Llc | Wireless | |
| Poplar | Mid-rivers Telephone Cooperative, Inc. | Landline | |
| Roundup | Mid-rivers Telephone Cooperative, Inc. | Landline | |
| Joliet | Qwest Corporation | Landline | |
| Sun River | Mtpcs, Llc | Wireless | |
| Rosebud | New Cingular Wireless Pcs, Llc | Wireless | |
| Hamilton | Cellco Partnership Dba Verizon Wireless - Mt | Wireless | |
| Lewistown | Mid-rivers Telephone Cooperative, Inc. | Landline | |
| Dutton | 3 Rivers Telephone Cooperative, Inc. | Landline | |
| Missoula | Cellco Partnership Dba Verizon Wireless - Mt | Wireless | |
| Bigfork | Bresnan Broadband of Montana, Llc - Mt | Landline | |
| Dillon | Qwest Corporation | Landline | |
| Missoula | Qwest Corporation | Landline | |
| Flaxville | Nemont Telephone Cooperative, Inc. | Landline | |
| Larslan | Nemont Telephone Cooperative, Inc. | Landline | |
| West Yellowstone | Cellco Partnership Dba Verizon Wireless - Mt | Wireless | |
| Carter | 3 Rivers Telephone Cooperative, Inc. | Landline | |
| Baker | Mid-rivers Telephone Cooperative, Inc. | Landline | |
| Scobey | Nemont Telephone Cooperative, Inc. | Landline | |
| Helmville | Blackfoot Telephone Cooperative, Inc. | Landline | |
| Billings | Eltopia Communications, Llc - Mt | Landline | |
| Plains | Blackfoot Telephone Cooperative, Inc. | Landline | |
| Bigfork | Centurytel of Montana, Inc. Dba Centurylink | Landline | |
| Polson | Centurytel of Montana, Inc. Dba Centurylink | Landline | |
| Roundup | Cable & Communications Corporation | Wireless | |
| Big Timber | Cellco Partnership Dba Verizon Wireless - Mt | Wireless | |
| Bighorn | Mid-rivers Telephone Cooperative, Inc. | Landline | |
| Billings | Bresnan Broadband of Montana, Llc - Mt | Landline | |
| Great Falls | 3 Rivers Telephone Cooperative, Inc. | Landline | |
| Kila | Centurytel of Montana, Inc. Dba Centurylink | Landline | |
| Malmstrom Afb | Qwest Corporation | Landline | |
| Lolo | New Cingular Wireless Pcs, Llc | Wireless | |
| Ashland | Range Telephone Cooperative, Inc. | Landline | |
| Toston | Qwest Corporation | Landline | |
| Billings | 360networks (usa) Inc. - Mt | Landline | |
| Billings | New Cingular Wireless Pcs, Llc | Wireless | |
| Great Falls | New Cingular Wireless Pcs, Llc | Wireless | |
| Columbus | New Cingular Wireless Pcs, Llc | Wireless | |
| Hardin | Cellco Partnership Dba Verizon Wireless - Mt | Wireless | |
| East Helena | Qwest Corporation | Landline | |
| Helena | Mtpcs, Llc | Wireless | |
| Fort Peck | Nemont Telephone Cooperative, Inc. | Landline | |
| Winnett | Mid-rivers Telephone Cooperative, Inc. | Landline | |
| Sheridan | 3 Rivers Telephone Cooperative, Inc. | Landline | |
| Busby | Range Telephone Cooperative, Inc. | Landline | |
| Chinook | Triangle Telephone Cooperative Assn., Inc. | Landline | |
| Great Falls | Qwest Corporation | Landline | |
| Gardiner | Qwest Corporation | Landline | |
| Greycliff | Mtpcs, Llc | Wireless | |
| Helena | Qwest Corporation | Landline | |
| Corvallis | Qwest Corporation | Landline | |
| Brady | 3 Rivers Telephone Cooperative, Inc. | Landline | |
| Helena | Bresnan Broadband of Montana, Llc - Mt | Landline | |
| Sheridan | 3 Rivers Telephone Cooperative, Inc. | Landline | |
| Missoula | Qwest Corporation | Landline | |
| Cardwell | Qwest Corporation | Landline | |
| Billings | Mtpcs, Llc | Wireless | |
| Gallatin Gateway | Qwest Corporation | Landline | |
| Whitefish | Centurytel of Montana, Inc. Dba Centurylink | Landline | |
| Martinsdale | Central Montana Communications, Inc. | Landline | |
| Laurel | Cellco Partnership Dba Verizon Wireless - Mt | Wireless | |
| Glendive | Mid-rivers Telephone Cooperative, Inc. | Landline | |
| Polson | Blackfoot Telephone Cooperative, Inc. | Landline | |
| Sidney | Cable & Communications Corporation | Wireless | |
| Belt | 3 Rivers Telephone Cooperative, Inc. | Landline | |
| Ingomar | Mid-rivers Telephone Cooperative, Inc. | Landline | |
| Helena | Cellco Partnership Dba Verizon Wireless - Mt | Wireless | |
| Dell | Southern Montana Telephone Co. | Landline | |
| Whitefish | Bresnan Broadband of Montana, Llc - Mt | Landline | |
| Ashland | Cable & Communications Corporation | Wireless | |
| Plevna | Cable & Communications Corporation | Wireless | |
| Helena | Qwest Corporation | Landline | |
| Bozeman | Bresnan Broadband of Montana, Llc - Mt | Landline | |
| Kalispell | Centurytel of Montana, Inc. Dba Centurylink | Landline | |
| Bozeman | Cellco Partnership Dba Verizon Wireless - Mt | Wireless | |
| Kalispell | Mtpcs, Llc | Wireless | |
| Ethridge | Northern Telephone Cooperative, Inc. | Landline | |
| Butte | Cellco Partnership Dba Verizon Wireless - Mt | Wireless | |
| Brockton | Nemont Telephone Cooperative, Inc. | Landline | |
| Noxon | Blackfoot Telephone Cooperative, Inc. | Landline | |
| Bozeman | Mtpcs, Llc | Wireless | |
| Belfry | Qwest Corporation | Landline | |
| Sidney | Reservation Telephone Cooperative | Landline | |
| Missoula | Bresnan Broadband of Montana, Llc - Mt | Landline | |
| Dillon | Cellco Partnership Dba Verizon Wireless - Mt | Wireless | |
| Bozeman | Montana Opticom, Llc - Mt | Landline | |
| Billings | Cellco Partnership Dba Verizon Wireless - Mt | Wireless | |
| Billings | New Cingular Wireless Pcs, Llc | Wireless | |
| Glendive | Cellco Partnership Dba Verizon Wireless - Mt | Wireless | |
| Fort Benton | Central Montana Communications, Inc. | Landline | |
| Bonner | Qwest Corporation | Landline | |
| Billings | Mcimetro Access Transmission Services Llc | Landline | |
| Great Falls | Level 3 Communications, Llc - Mt | Landline | |
| Basin | Qwest Corporation | Landline | |
| Gardiner | Cellco Partnership Dba Verizon Wireless - Mt | Wireless | |
| Inverness | Triangle Telephone Cooperative Assn., Inc. | Landline | |
| Dodson | Central Montana Communications, Inc. | Landline | |
| Belfry | Tct West, Inc. | Landline | |
| Kalispell | Cellco Partnership Dba Verizon Wireless - Mt | Wireless | |
| Big Timber | Triangle Telephone Cooperative Assn., Inc. | Landline | |
| Billings | Bandwidth.com Clec, Llc - Mt | Landline | |
| Scobey | Nemont Telephone Cooperative, Inc. | Landline | |
| Wibaux | Midstate Communications, Inc. | Landline | |
| Bozeman | New Cingular Wireless Pcs, Llc | Wireless | |
| Broadus | Range Telephone Cooperative, Inc. | Landline | |
| Hardin | Project Telephone Co., Inc. | Landline | |
| Denton | Triangle Telephone Cooperative Assn., Inc. | Landline | |
| Townsend | Cellco Partnership Dba Verizon Wireless - Mt | Wireless | |
| Belgrade | Qwest Corporation | Landline | |
| Glendive | New Cingular Wireless Pcs, Llc | Wireless | |
| Superior | New Cingular Wireless Pcs, Llc | Wireless | |
| Plentywood | Nemont Telephone Cooperative, Inc. | Landline | |
| Clancy | Qwest Corporation | Landline | |
| Great Falls | 3 Rivers Telephone Cooperative, Inc. - Mt | Landline | |
| Great Falls | Level 3 Communications, Llc - Mt | Landline | |
| Hamilton | Qwest Corporation | Landline | |
| Somers | Bresnan Broadband of Montana, Llc - Mt | Landline | |
| Kalispell | Centurytel of Montana, Inc. Dba Centurylink | Landline | |
| Hot Springs | Hot Springs Telephone Co. | Landline | |
| Ronan | Cellco Partnership Dba Verizon Wireless - Mt | Wireless | |
| Helena | Qwest Corporation | Landline | |
| Billings | Cellco Partnership Dba Verizon Wireless - Mt | Wireless | |
| Glendive | Qwest Corporation | Landline | |
| West Yellowstone | Qwest Corporation | Landline | |
| Ronan | Cellco Partnership Dba Verizon Wireless - Mt | Wireless | |
| Kalispell | Centurytel of Montana, Inc. Dba Centurylink | Landline | |
| Billings | Level 3 Communications, Llc - Mt | Landline | |
| Clancy | Qwest Corporation | Landline | |
| Helena | New Cingular Wireless Pcs, Llc | Wireless | |
| Eureka | Interbel Telephone Cooperative, Inc. - Mt | Landline | |
| Saint Regis | Blackfoot Telephone Cooperative, Inc. | Landline | |
| Great Falls | Qwest Corporation | Landline | |
| Billings | Mid-rivers Telephone Cooperative, Inc. | Landline | |
| Missoula | Blackfoot Communications, Inc. - Mt | Landline | |
| Philipsburg | Blackfoot Telephone Cooperative, Inc. | Landline | |
| Frenchtown | Qwest Corporation | Landline | |
| Bozeman | Bresnan Broadband of Montana, Llc - Mt | Landline | |
| Billings | One Eighty Communications, Inc. - Mt | Landline | |
| Lakeside | Bresnan Broadband of Montana, Llc - Mt | Landline | |
| Clinton | Blackfoot Telephone Cooperative, Inc. | Landline | |
| Rudyard | Triangle Telephone Cooperative Assn., Inc. | Landline | |
| Helena | New Cingular Wireless Pcs, Llc | Landline | |
| Forest Grove | Mid-rivers Telephone Cooperative, Inc. | Landline | |
| Inverness | Triangle Telephone Cooperative Assn., Inc. | Landline | |
| Glasgow | Nemont Telephone Cooperative, Inc. | Landline | |
| Fort Peck | Nemont Telephone Cooperative, Inc. | Landline | |
| Antelope | Nemont Telephone Cooperative, Inc. | Landline | |
| Absarokee | Mtpcs, Llc | Wireless | |
| Charlo | Blackfoot Telephone Cooperative, Inc. | Landline | |
| Plentywood | Nemont Telephone Cooperative, Inc. | Landline | |
| Billings | Qwest Corporation | Landline | |
| Frazer | Nemont Telephone Cooperative, Inc. | Landline | |
| Roundup | Mid-rivers Telephone Cooperative, Inc. | Landline | |
| Glasgow | Mtpcs, Llc | Wireless | |
| Missoula | Sprint Spectrum L.p.- Mt | Wireless | |
| Billings | Tc Systems, Inc. - Mt | Landline | |
| Olive | Range Telephone Cooperative, Inc. | Landline | |
| Brockton | Nemont Telephone Cooperative, Inc. | Landline | |
| Park City | Qwest Corporation | Landline | |
| Ennis | 3 Rivers Telephone Cooperative, Inc. | Landline | |
| Seeley Lake | New Cingular Wireless Pcs, Llc | Wireless | |
| Whitefish | 360networks (usa) Inc. - Mt | Landline | |
| Kalispell | New Cingular Wireless Pcs, Llc | Wireless | |
| Helena | Qwest Corporation | Landline | |
| Sidney | Cellco Partnership Dba Verizon Wireless - Mt | Wireless | |
| Billings | Qwest Corporation | Landline | |
| Loring | Triangle Telephone Cooperative Assn., Inc. | Landline | |
| Lewistown | Mtpcs, Llc | Wireless | |
| Sidney | Qwest Corporation | Landline | |
| Billings | Eltopia Communications, Llc - Mt | Landline | |
| Hardin | Qwest Corporation | Landline | |
| Clancy | Qwest Corporation | Landline | |
| Havre | Central Montana Communications, Inc. | Landline | |
| Darby | Blackfoot Telephone Cooperative, Inc. | Landline | |
| Circle | Cable & Communications Corporation | Wireless | |
| Wilsall | Qwest Corporation | Landline | |
| Billings | One Eighty Communications, Inc. - Mt | Landline | |
| Billings | One Eighty Communications, Inc. - Mt | Landline | |
| Cut Bank | Qwest Corporation | Landline | |
| Glendive | Mid-rivers Telephone Cooperative, Inc. | Landline | |
| Jordan | Cable & Communications Corporation | Wireless | |
| Augusta | 3 Rivers Telephone Cooperative, Inc. | Landline | |
| Miles City | Qwest Corporation | Landline | |
| Missoula | Cellco Partnership Dba Verizon Wireless - Mt | Wireless | |
| Helena | Cellco Partnership Dba Verizon Wireless - Mt | Wireless | |
| Harlowton | Central Montana Communications, Inc. | Landline | |
| Saint Ignatius | Blackfoot Telephone Cooperative, Inc. | Landline | |
| Conner | Qwest Corporation | Landline | |
| Missoula | Qwest Corporation | Landline | |
| Troy | Citizens Telecom Co of Mt-frontier Comm of Mt | Landline | |
| Stanford | Central Montana Communications, Inc. | Landline | |
| Billings | New Cingular Wireless Pcs, Llc | Wireless | |
| Conrad | 3 Rivers Telephone Cooperative, Inc. - Mt | Landline | |
| Buffalo | Central Montana Communications, Inc. | Landline | |
| Great Falls | Sprint Spectrum L.p.- Mt | Wireless | |
| Valier | Qwest Corporation | Landline | |
| Divide | Southern Montana Telephone Co. | Landline | |
| Sidney | Mid-rivers Telephone Cooperative, Inc. | Landline | |
| Bigfork | 360networks (usa) Inc. - Mt | Landline | |
| Sand Springs | Mid-rivers Telephone Cooperative, Inc. | Landline | |
| Laurel | Qwest Corporation | Landline | |
| Rosebud | New Cingular Wireless Pcs, Llc | Landline | |
| Missoula | At&t Local | Landline | |
| Billings | Qwest Corporation | Landline | |
| Judith Gap | Central Montana Communications, Inc. | Landline | |
| Forsyth | Mtpcs, Llc | Wireless | |
| East Glacier Park | Qwest Corporation | Landline | |
| Saint Marie | Nemont Telephone Cooperative, Inc. | Landline | |
| Billings | Cellco Partnership Dba Verizon Wireless - Mt | Wireless | |
| Corvallis | Qwest Corporation | Landline | |
| Columbia Falls | Centurytel of Montana, Inc. Dba Centurylink | Landline | |
| Thompson Falls | New Cingular Wireless Pcs, Llc | Wireless | |
| Charlo | Western Montana Communitytel Inc. - Mt | Landline | |
| Geyser | Qwest Corporation | Landline | |
| Whitefish | 360networks (usa) Inc. - Mt | Landline | |
| Bozeman | One Eighty Communications, Inc. - Mt | Landline | |
| Missoula | Level 3 Communications, Llc - Mt | Landline | |
| Lakeside | Centurytel of Montana, Inc. Dba Centurylink | Landline | |
| Rosebud | Range Telephone Cooperative, Inc. | Landline | |
| Bozeman | New Cingular Wireless Pcs, Llc | Wireless | |
| Billings | Qwest Corporation | Landline | |
| Ronan | Ymax Communications Corp. - Mt | Landline | |
| Belt | 3 Rivers Telephone Cooperative, Inc. | Landline | |
| Three Forks | Qwest Corporation | Landline | |
| Glentana | Nemont Telephone Cooperative, Inc. | Landline | |
| Miles City | Mtpcs, Llc | Wireless | |
| Hogeland | Triangle Telephone Cooperative Assn., Inc. | Landline | |
| Wyola | Qwest Corporation | Landline | |
| Malta | Sagebrush Cellular, Inc. | Wireless | |
| Wise River | Southern Montana Telephone Co. | Landline | |
| Red Lodge | Mtpcs, Llc | Wireless | |
| Billings | Qwest Corporation | Landline | |
| Great Falls | Qwest Corporation | Landline | |
| Opheim | Nemont Telephone Cooperative, Inc. | Landline | |
| Gold Creek | Blackfoot Telephone Cooperative, Inc. | Landline | |
| Glendive | Level 3 Communications, Llc - Mt | Landline | |
| Billings | Cellco Partnership Dba Verizon Wireless - Mt | Wireless | |
| Billings | Qwest Corporation | Landline | |
| Powderville | Range Telephone Cooperative, Inc. | Landline | |
| Scobey | Nemont Telephone Cooperative, Inc. | Landline | |
| Frazer | Nemont Telephone Cooperative, Inc. | Landline | |
| Bozeman | Smart Call, Llc | Landline | |
| Kila | Centurytel of Montana, Inc. Dba Centurylink | Landline | |
| Raymond | Nemont Telephone Cooperative, Inc. | Landline | |
| Great Falls | Qwest Corporation | Landline | |
| Wyola | Project Telephone Co., Inc. | Landline | |
| Roy | Cable & Communications Corporation | Wireless | |
| Kalispell | New Cingular Wireless Pcs, Llc | Wireless | |
| Missoula | Qwest Corporation | Landline | |
| Billings | Qwest Corporation | Landline | |
| Billings | 360networks (usa) Inc. - Mt | Landline | |
| Billings | Qwest Corporation | Landline | |
| Choteau | 3 Rivers Telephone Cooperative, Inc. | Landline | |
| Fort Benton | Mtpcs, Llc | Wireless | |
| Laurel | Qwest Corporation | Landline | |
| Miles City | Level 3 Communications, Llc - Mt | Landline | |
| Glasgow | Sagebrush Cellular, Inc. | Landline | |
| Raynesford | 3 Rivers Telephone Cooperative, Inc. | Landline | |
| Missoula | New Cingular Wireless Pcs, Llc | Wireless | |
| Coram | Centurytel of Montana, Inc. Dba Centurylink | Landline | |
| Helena | Qwest Corporation | Landline | |
| Miles City | Cable & Communications Corporation | Wireless | |
| Butte | Bresnan Broadband of Montana, Llc - Mt | Landline | |
| Bozeman | 360networks (usa) Inc. - Mt | Landline | |
| Lewistown | Level 3 Communications, Llc - Mt | Landline | |
| Billings | Sagebrush Cellular, Inc. | Wireless | |
| Roundup | Cellco Partnership Dba Verizon Wireless - Mt | Wireless | |
| Belgrade | Mcimetro Access Transmission Services Llc | Landline | |
| Miles City | Cellco Partnership Dba Verizon Wireless - Mt | Wireless | |
| Great Falls | Qwest Corporation | Landline | |
| Eureka | Interbel Telephone Cooperative, Inc. | Landline | |
| Glendive | Cellco Partnership Dba Verizon Wireless - Mt | Wireless | |
| Butte | Level 3 Communications, Llc - Mt | Landline | |
| Billings | Qwest Corporation | Landline | |
| Terry | Qwest Corporation | Landline | |
| Butte | New Cingular Wireless Pcs, Llc | Wireless | |
| Missoula | Sprint Spectrum L.p.- Mt | Wireless | |
| Columbus | 360networks (usa) Inc. - Mt | Landline | |
| Whitefish | Centurytel of Montana, Inc. Dba Centurylink | Landline | |
| Missoula | Bresnan Broadband of Montana, Llc - Mt | Landline | |
| Stevensville | New Cingular Wireless Pcs, Llc | Wireless | |
| Great Falls | Qwest Corporation | Landline | |
| Browning | Mtpcs, Llc | Wireless | |
| Glasgow | Cellco Partnership Dba Verizon Wireless - Mt | Wireless | |
| Kalispell | Bresnan Broadband of Montana, Llc - Mt | Wireless | |
| Cut Bank | Northern Telephone Cooperative, Inc. | Landline | |
| Polson | Centurytel of Montana, Inc. Dba Centurylink | Landline | |
| Lewistown | Cellco Partnership Dba Verizon Wireless - Mt | Wireless | |
| Bozeman | At&t Local | Landline | |
| Billings | 365 Wireless, Llc | Wireless | |
| Marion | 360networks (usa) Inc. - Mt | Landline | |
| Missoula | Blackfoot Telephone Cooperative, Inc. | Landline | |
| Glendive | Mid-rivers Telephone Cooperative, Inc. | Landline | |
| Kremlin | Triangle Telephone Cooperative Assn., Inc. | Landline | |
| Hilger | Mid-rivers Telephone Cooperative, Inc. | Landline | |
| Heart Butte | 3 Rivers Telephone Cooperative, Inc. | Landline | |
| Miles City | Cellco Partnership Dba Verizon Wireless - Mt | Wireless | |
| Malta | Cellco Partnership Dba Verizon Wireless - Mt | Wireless | |
| Sidney | Level 3 Communications, Llc - Mt | Landline | |
| Polson | Centurytel of Montana, Inc. Dba Centurylink | Landline | |
| Great Falls | Qwest Corporation | Landline | |
| Colstrip | Cellco Partnership Dba Verizon Wireless - Mt | Wireless | |
| Kalispell | Bresnan Broadband of Montana, Llc - Mt | Landline | |
| Anaconda | Cellco Partnership Dba Verizon Wireless - Mt | Wireless | |
| Sidney | New Cingular Wireless Pcs, Llc | Wireless | |
| Dillon | Level 3 Communications, Llc - Mt | Landline | |
| Missoula | Qwest Corporation | Landline | |
| Baker | Cable & Communications Corporation | Wireless | |
| Dillon | New Cingular Wireless Pcs, Llc | Wireless | |
| Billings | One Eighty Communications, Inc. - Mt | Landline | |
| Libby | Citizens Telecom Co of Mt-frontier Comm of Mt | Landline | |
| Helena | Bresnan Broadband of Montana, Llc - Mt | Landline | |
| Helena | At&t Local | Landline | |
| Culbertson | New Cingular Wireless Pcs, Llc | Wireless | |
| Canyon Creek | Lincoln Telephone Company, Inc. | Landline | |
| Lame Deer | Range Telephone Cooperative, Inc. | Landline | |
| Ashland | Cellco Partnership Dba Verizon Wireless - Mt | Wireless | |
| Helena | Level 3 Communications, Llc - Mt | Landline | |
| Joliet | Cellco Partnership Dba Verizon Wireless - Mt | Wireless | |
| Kalispell | Centurytel of Montana, Inc. Dba Centurylink | Landline | |
| Missoula | Cellco Partnership Dba Verizon Wireless - Mt | Landline | |
| Havre | Qwest Corporation | Landline | |
| Lincoln | Lincoln Telephone Company, Inc. | Landline | |
| Conrad | New Cingular Wireless Pcs, Llc | Landline | |
| Elmo | 360networks (usa) Inc. - Mt | Landline | |
| Roberts | Qwest Corporation | Landline | |
| Geraldine | Central Montana Communications, Inc. | Landline | |
| Jefferson City | Qwest Corporation | Landline | |
| Seeley Lake | Blackfoot Telephone Cooperative, Inc. | Landline | |
| Richey | Cable & Communications Corporation | Wireless | |
| Havre | Cellco Partnership Dba Verizon Wireless - Mt | Landline | |
| Homestead | Nemont Telephone Cooperative, Inc. | Landline | |
| Livingston | Qwest Corporation | Landline | |
| Thompson Falls | Blackfoot Telephone Cooperative, Inc. | Landline | |
| Butte | At&t Local | Landline | |
| White Sulphur Springs | Central Montana Communications, Inc. | Landline | |
| Butte | Sprint Spectrum L.p.- Mt | Wireless | |
| Kalispell | Cellco Partnership Dba Verizon Wireless - Mt | Wireless | |
| Sidney | Cellco Partnership Dba Verizon Wireless - Mt | Wireless | |
| Livingston | Qwest Corporation | Landline | |
| Helena | New Cingular Wireless Pcs, Llc | Wireless | |
| Dillon | Level 3 Communications, Llc - Mt | Landline | |
| Havre | Qwest Corporation | Landline | |
| Bozeman | New Cingular Wireless Pcs, Llc | Wireless | |
| Scobey | Nemont Telephone Cooperative, Inc. | Landline | |
| Cooke City | Qwest Corporation | Landline | |
| Missoula | Bresnan Broadband of Montana, Llc - Mt | Landline | |
| Billings | Bresnan Broadband of Montana, Llc - Mt | Landline | |
| Poplar | Nemont Telephone Cooperative, Inc. | Landline | |
| Bainville | Nemont Telephone Cooperative, Inc. | Landline | |
| Great Falls | Cellco Partnership Dba Verizon Wireless - Mt | Wireless | |
| Lewistown | Level 3 Communications, Llc - Mt | Landline | |
| Havre | New Cingular Wireless Pcs, Llc | Wireless | |
| Bozeman | Qwest Corporation | Landline | |
| Cut Bank | Mtpcs, Llc | Wireless | |
| Ekalaka | Cable & Communications Corporation | Wireless | |
| Bozeman | Qwest Corporation | Landline | |
| Great Falls | Sprint Spectrum L.p.- Mt | Wireless | |
| Bozeman | Qwest Corporation | Landline | |
| Medicine Lake | Nemont Telephone Cooperative, Inc. | Landline | |
| Terry | Cable & Communications Corporation | Wireless | |
| Savage | Mid-rivers Telephone Cooperative, Inc. | Landline | |
| Laurel | Qwest Corporation | Landline | |
| Bozeman | Qwest Corporation | Landline | |
| Marion | Centurytel of Montana, Inc. Dba Centurylink | Landline | |
| Hysham | Range Telephone Cooperative, Inc. | Landline | |
| Billings | Qwest Corporation | Landline | |
| Missoula | 360networks (usa) Inc. - Mt | Landline | |
| Wolf Creek | Qwest Corporation | Landline | |
| Bozeman | Qwest Corporation | Landline | |
| Great Falls | 360networks (usa) Inc. - Mt | Landline | |
| Missoula | Qwest Corporation | Landline | |
| Helena | Qwest Corporation | Landline | |
| Libby | Citizens Telecom Co of Mt-frontier Comm of Mt | Landline | |
| Townsend | Cellco Partnership Dba Verizon Wireless - Mt | Wireless | |
| Browning | Qwest Corporation | Landline | |
| Livingston | Level 3 Communications, Llc - Mt | Landline | |
| Billings | Qwest Corporation | Landline | |
| Butte | New Cingular Wireless Pcs, Llc | Wireless | |
| Libby | New Cingular Wireless Pcs, Llc | Wireless | |
| Lewistown | Qwest Corporation | Landline | |
| Hardin | Mtpcs, Llc | Wireless | |
| Columbia Falls | Contact Communications, Inc. - Wyoming | Landline | |
| Rollins | Centurytel of Montana, Inc. Dba Centurylink | Landline | |
| Valier | 3 Rivers Telephone Cooperative, Inc. | Landline | |
| Bigfork | 360networks (usa) Inc. - Mt | Landline | |
| Clinton | Bresnan Broadband of Montana, Llc - Mt | Landline | |
| Kevin | Mtpcs, Llc | Wireless | |
| Bozeman | Cellco Partnership Dba Verizon Wireless - Mt | Wireless | |
| Havre | New Cingular Wireless Pcs, Llc | Wireless | |
| Helena | Cellco Partnership Dba Verizon Wireless - Mt | Wireless | |
| Bloomfield | Mid-rivers Telephone Cooperative, Inc. | Landline | |
| Billings | Qwest Corporation | Landline | |
| Billings | Qwest Corporation | Landline | |
| Miles City | Mid-rivers Telephone Cooperative, Inc. | Landline | |
| Columbia Falls | Bresnan Broadband of Montana, Llc - Mt | Landline | |
| Box Elder | Triangle Telephone Cooperative Assn., Inc. | Landline | |
| Roundup | Mid-rivers Telephone Cooperative, Inc. | Landline | |
| Billings | Cellco Partnership Dba Verizon Wireless - Mt | Wireless | |
| Butte | Qwest Corporation | Landline | |
| Hamilton | Cellco Partnership Dba Verizon Wireless - Mt | Wireless | |
| Sidney | Level 3 Communications, Llc - Mt | Landline | |
| Polson | Polson Communitytel, Inc. - Mt | Landline | |
| Big Timber | Cellco Partnership Dba Verizon Wireless - Mt | Wireless | |
| Plevna | New Cingular Wireless Pcs, Llc | Wireless | |
| Butte | Cellco Partnership Dba Verizon Wireless - Mt | Wireless | |
| Glasgow | Nemont Telephone Cooperative, Inc. | Landline | |
| Divide | Mtpcs, Llc | Wireless | |
| Missoula | Bresnan Broadband of Montana, Llc - Mt | Landline | |
| Helena | 360networks (usa) Inc. - Mt | Landline | |
| Anaconda | Cellco Partnership Dba Verizon Wireless - Mt | Wireless | |
| Hathaway | Mtpcs, Llc | Wireless | |
| Decker | Range Telephone Cooperative, Inc. | Landline | |
| Broadus | Cable & Communications Corporation | Wireless | |
| Culbertson | New Cingular Wireless Pcs, Llc | Wireless | |
| Great Falls | Cellco Partnership Dba Verizon Wireless - Mt | Wireless | |
| Bozeman | Nexus Communications, Inc. | Wireless | |
| Kalispell | New Cingular Wireless Pcs, Llc | Wireless | |
| Missoula | Cellco Partnership Dba Verizon Wireless - Mt | Wireless | |
| Billings | Cellco Partnership Dba Verizon Wireless - Mt | Wireless | |
| Nashua | Nemont Telephone Cooperative, Inc. | Landline | |
| Malta | Central Montana Communications, Inc. | Landline | |
| Bozeman | Cellco Partnership Dba Verizon Wireless - Mt | Wireless | |
| Bozeman | Qwest Corporation | Landline | |
| Great Falls | Level 3 Communications, Llc - Mt | Landline | |
| Miles City | Cable & Communications Corporation | Wireless | |
| Geraldine | Triangle Telephone Cooperative Assn., Inc. | Landline | |
| Bridger | Project Telephone Co., Inc. | Landline | |
| Hardin | Level 3 Communications, Llc - Mt | Landline | |
| Miles City | Qwest Corporation | Landline | |
| Lewistown | New Cingular Wireless Pcs, Llc | Wireless | |
| Missoula | Qwest Corporation | Landline | |
| Canyon Creek | 360networks (usa) Inc. - Mt | Landline | |
| Missoula | New Cingular Wireless Pcs, Llc | Wireless | |
| Kalispell | Cellco Partnership Dba Verizon Wireless - Mt | Wireless | |
| Manhattan | Qwest Corporation | Landline | |
| Alberton | Blackfoot Telephone Cooperative, Inc. | Landline | |
| Helena | Mcimetro Access Transmission Services Llc | Landline | |
| Helena | Sprint Spectrum L.p.- Mt | Wireless | |
| Billings | Cellco Partnership Dba Verizon Wireless - Mt | Landline | |
| Baker | New Cingular Wireless Pcs, Llc | Wireless | |
| Laurel | New Cingular Wireless Pcs, Llc | Wireless | |
| Bozeman | New Cingular Wireless Pcs, Llc | Landline | |
| Ronan | Ronan Telephone Co. | Landline | |
| Nashua | Nemont Telephone Cooperative, Inc. | Landline | |
| Helena | New Cingular Wireless Pcs, Llc | Wireless | |
| Billings | Bresnan Broadband of Montana, Llc - Mt | Landline | |
| Billings | Qwest Corporation | Landline | |
| Wolf Point | Sagebrush Cellular, Inc. | Landline | |
| Forsyth | Cellco Partnership Dba Verizon Wireless - Mt | Wireless | |
| Wolf Point | Nemont Telephone Cooperative, Inc. | Landline | |
| Vida | Mid-rivers Telephone Cooperative, Inc. | Landline | |
| Glasgow | Cellco Partnership Dba Verizon Wireless - Mt | Wireless | |
| Loma | Triangle Telephone Cooperative Assn., Inc. | Landline | |
| Billings | Sprint Spectrum L.p.- Mt | Wireless | |
| Havre | Mtpcs, Llc | Wireless | |
| Missoula | Blackfoot Communications, Inc. - Mt | Landline | |
| Kremlin | Triangle Telephone Cooperative Assn., Inc. | Landline | |
| Butte | Qwest Corporation | Landline | |
| Black Eagle | Qwest Corporation | Landline | |
| Great Falls | Pacific Telecom Communications Group - Mt | Landline | |
| Glendive | Mid-rivers Telephone Cooperative, Inc. | Landline | |
| Colstrip | Qwest Corporation | Landline | |
| West Yellowstone | Cellco Partnership Dba Verizon Wireless - Mt | Wireless | |
| Great Falls | New Cingular Wireless Pcs, Llc | Wireless | |
| Dutton | Qwest Corporation | Landline | |
| Saco | Nemont Telephone Cooperative, Inc. | Landline | |
| Hamilton | Qwest Corporation | Landline | |
| Great Falls | At&t Local | Landline | |
| Birney | Range Telephone Cooperative, Inc. | Landline | |
| Billings | One Eighty Communications, Inc. - Mt | Landline | |
| Sweet Grass | Northern Telephone Cooperative, Inc. | Landline | |
| Sidney | Mid-rivers Telephone Cooperative, Inc. | Landline | |
| Billings | Cellco Partnership Dba Verizon Wireless - Mt | Wireless | |
| Saint Regis | New Cingular Wireless Pcs, Llc | Wireless | |
| Roundup | Cellco Partnership Dba Verizon Wireless - Mt | Wireless | |
| Wise River | Southern Montana Telephone Co. | Landline | |
| Lolo | Qwest Corporation | Landline | |
| Great Falls | 365 Wireless, Llc | Wireless | |
| Hardin | Level 3 Communications, Llc - Mt | Landline | |
| Alberton | Blackfoot Telephone Cooperative, Inc. | Landline | |
| Garrison | Qwest Corporation | Landline | |
| Stevensville | Qwest Corporation | Landline | |
| Dillon | Mtpcs, Llc | Wireless | |
| Livingston | New Cingular Wireless Pcs, Llc | Wireless | |
| Butte | Qwest Corporation | Landline | |
| Reed Point | Triangle Telephone Cooperative Assn., Inc. | Landline | |
| Livingston | Cellco Partnership Dba Verizon Wireless - Mt | Wireless | |
| Great Falls | Qwest Corporation | Landline | |
| Saint Ignatius | Mtpcs, Llc | Wireless | |
| Miles City | Mid-rivers Telephone Cooperative, Inc. | Landline | |
| Billings | Level 3 Communications, Llc - Mt | Landline | |
| Bozeman | Sprint Spectrum L.p.- Mt | Wireless | |
| Missoula | Qwest Corporation | Landline | |
| Livingston | New Cingular Wireless Pcs, Llc | Wireless | |
| Missoula | Qwest Corporation | Landline | |
| Billings | Qwest Corporation | Landline | |
| Conrad | Mtpcs, Llc | Wireless | |
| Bigfork | Centurytel of Montana, Inc. Dba Centurylink | Landline | |
| Ronan | Mtpcs, Llc | Wireless | |
| Cut Bank | Bresnan Broadband of Montana, Llc - Mt | Landline | |
| Anaconda | Qwest Corporation | Landline | |
| Billings | New Cingular Wireless Pcs, Llc | Wireless | |
| Great Falls | Blackfoot Communications, Inc. - Mt | Landline | |
| Stevensville | Bresnan Broadband of Montana, Llc - Mt | Landline | |
| Bozeman | Level 3 Communications, Llc - Mt | Landline | |
| Billings | New Cingular Wireless Pcs, Llc | Wireless | |
| Gallatin Gateway | Montana Opticom, Llc - Mt | Landline | |
| Butte | Mtpcs, Llc | Wireless | |
| Great Falls | Qwest Corporation | Landline | |
| Billings | One Eighty Communications, Inc. - Mt | Landline | |
| Wibaux | Qwest Corporation | Landline | |
| Shelby | Level 3 Communications, Llc - Mt | Landline | |
| Belgrade | Level 3 Communications, Llc - Mt | Landline | |
| Butte | 360networks (usa) Inc. - Mt | Landline | |
| Shelby | Cellco Partnership Dba Verizon Wireless - Mt | Wireless | |
| Baker | Mid-rivers Telephone Cooperative, Inc. | Landline | |
| Lewistown | Cellco Partnership Dba Verizon Wireless - Mt | Wireless | |
| Helena | Bresnan Broadband of Montana, Llc - Mt | Landline | |
| Kalispell | Cellco Partnership Dba Verizon Wireless - Mt | Wireless | |
| Great Falls | Cellco Partnership Dba Verizon Wireless - Mt | Wireless | |
| Billings | Bresnan Broadband of Montana, Llc - Mt | Landline | |
| Billings | Qwest Corporation | Landline | |
| Polson | Centurytel of Montana, Inc. Dba Centurylink | Landline | |
| Joliet | 360networks (usa) Inc. - Mt | Landline | |
| Deer Lodge | Mtpcs, Llc | Wireless | |
| Butte | New Cingular Wireless Pcs, Llc | Wireless | |
| Forsyth | Level 3 Communications, Llc - Mt | Landline |