605 Area Code in South Dakota, United States
Description
Area code 605 covers the entire state of South Dakota and is one of the few single area codes still in use statewide. Established in 1947 as one of the original area codes, it serves cities such as Sioux Falls, Rapid City, Aberdeen, and Pierre. The state’s small population and geographic distribution have allowed 605 to remain unchanged without the need for splits or overlays. It is frequently used in statewide marketing and business names, serving as a recognizable badge of South Dakota identity. The code spans a diverse landscape of agriculture, tourism, and tribal nations. 605 is a proud symbol of the state’s unity and rural heritage.
Time & Time Zone
Time zone:
Mountain (GMT -07:00) Current time:
Map
Major Cities
| City | Prefixes |
|---|---|
| | |
| | |
Counties
| County | Prefixes |
|---|---|
| Minnehaha | |
| Pennington | |
| Lincoln | |
| Brown | |
| Union | |
| Meade | |
| Brookings | |
| Lawrence | |
| Clay | |
| Codington | |
| Lake | |
| Hughes | |
| Roberts | |
| Yankton | |
| Grant | |
| Beadle | |
| Spink | |
| Kingsbury | |
| Davison | |
| Charles Mix | |
| Day | |
| Turner | |
| Mccook | |
| Brule | |
| Hamlin | |
| Edmunds | |
| Moody | |
| Hutchinson | |
| Clark | |
| Marshall | |
| Custer | |
| Bennett | |
| Sanborn | |
| Mcpherson | |
| Fall River | |
| Bon Homme | |
| Haakon | |
| Faulk | |
| Hand | |
| Potter | |
| Walworth | |
| Todd | |
| Gregory | |
| Butte | |
| Perkins | |
| Tripp | |
| Deuel | |
| Corson | |
| Harding | |
| Jackson | |
| Aurora | |
| Hyde | |
| Hanson | |
| Dewey | |
| Ziebach | |
| Shannon | |
| Lyman | |
| Campbell | |
| Jones | |
| Stanley | |
| Sully | |
| Douglas | |
| Jerauld | |
| Miner | |
| Cherry | |
| Mellette | |
| Bowman | |
| Buffalo | |
| Rock | |
| Pipestone | |
| Adams | |
| Plymouth | |
| Traverse | |
| Weston | |
| Dickey |
Telephone Carriers
| Carrier | Type | Prefixes (%) |
|---|---|---|
| Qwest Corporation | Landline | 23% |
| Cellco Partnership Dba Verizon Wireless Sd | Wireless | 8% |
| New Cingular Wireless Pcs Llc Il | Wireless | 8% |
| Interstate Telecom Coop Inc South Dakota | Landline | 6% |
| Golden West Tel Coop Inc Dba Golden West Telecomm | Landline | 5% |
| Venture Communications Cooperative | Landline | 5% |
| Vivian Tel Co Dba Golden West Telecommunications | Landline | 4% |
| James Valley Cooperative Telephone Company | Landline | 3% |
| Midcontinent Communications Sd | Landline | 3% |
| Knology Community Telephone Inc | Landline | 3% |
| Knology Of The Plains Inc Sd | Landline | 2% |
| Midstate Communications Inc | Landline | 2% |
| Santel Communications Cooperative Inc Sd | Landline | 2% |
| Valley Telecom Cooperative Association Inc | Landline | 2% |
| West River Cooperative Telephone Company | Landline | 2% |
| Consolidated Telcom | Landline | 1% |
| At T Local | Landline | 1% |
| Knology Of The Black Hills Llc Sd | Landline | 1% |
| Sioux Valley Tel Dba Golden West Telecommunication | Landline | 1% |
| Alliance Communications Cooperative Inc Baltic | Landline | 1% |
| Fort Randall Telco Dba Mt Rushmore Telephone Co | Landline | 1% |
| Level 3 Communications Llc Sd | Landline | 1% |
| Great Plains Communications Inc | Landline | 1% |
| Cheyenne River Sioux Tribal Telephone Auth | Landline | 1% |
| Western Telephone Co | Landline | 1% |
| Alliance Comm Coopeative Inc Split Rock | Landline | 1% |
| Mccook Cooperative Telephone Company | Landline | 1% |
| Stockholm Strandburg Telephone Co | Landline | 1% |
| Brookings Municipal Utilities | Wireless | 1% |
| Rc Communications Inc | Landline | 1% |
| Rc Communications Inc Sd | Landline | < 1% |
| Red River Rural Tel Assn Dba Red River Comm Nd | Landline | < 1% |
| Beresford Municipal Telephone Co | Landline | < 1% |
| City Of Faith Municipal Telephone Co | Landline | < 1% |
| Roberts County Telephone Cooperative Assn | Landline | < 1% |
| Sstelecom Inc Sd | Landline | < 1% |
| Sancom Inc Dba Mitchell Telecom Sd | Landline | < 1% |
| Bandwidth Com Clec Llc Sd | Landline | < 1% |
| Standing Rock Telecommunications Inc | Wireless | < 1% |
| Long Lines Metro Llc Sd | Landline | < 1% |
| Kennebec Telephone Co | Landline | < 1% |
| West River Telecommunications Cooperative Sd | Landline | < 1% |
| South Dakota Network Llc | Landline | < 1% |
| West River Telecommunications Coop Mobridge Sd | Landline | < 1% |
| Long Lines Wireless Llc | Wireless | < 1% |
| Ymax Communications Corp Sd | Landline | < 1% |
| Aerial Communications | Wireless | < 1% |
| Iowa Wireless Services Lp | Wireless | < 1% |
| Citizens Telecom Co Mn Frontier Citizens Com Mn | Landline | < 1% |
| Rt Communications | Landline | < 1% |
| Native American Telecom Llc Sd | Landline | < 1% |
| Sprint Communications Company L P Sd | Landline | < 1% |
| Fibercom L C | Landline | < 1% |
| Tc Systems Inc Sd | Landline | < 1% |
| Dakotacomm Llc Sd | < 1% | |
| Armour Independent Tel Co Dba Golden West Telcomm | Landline | < 1% |
| Alliance Communications Cooperative Inc Sd | Landline | < 1% |
| Native American Telecom Pine Ridge Llc Sd | Landline | < 1% |
| Kadoka Tel Co Dba Golden West Telecommunications | Landline | < 1% |
| Northern Valley Communications Llc | Landline | < 1% |
| Mcleodusa Telecommunications Services Inc Sd | Landline | < 1% |
| Heartland Telecom Company Of Iowa Dba Hickorytech | Landline | < 1% |
| Farmers Mutual Telephone Co | Landline | < 1% |
| Union Tel Co Dba Golden West Telecommunications | Landline | < 1% |
| Tri County Telcom Inc | Landline | < 1% |
| 365 Wireless Llc | Wireless | < 1% |
| Valley Telephone Co | Landline | < 1% |
| City Of Brookings Municipal Telephone Dept | Landline | < 1% |
| Northeast Nebraska Telephone Co | Landline | < 1% |
| Jefferson Telephone Co | Landline | < 1% |
| Midstate Telecom Inc Sd | Landline | < 1% |
| Mcimetro Access Transmission Services Llc | Wireless | < 1% |
| 360 Networks Usa Inc Sd | Wireless | < 1% |
| Three River Telephone Company | Landline | < 1% |
| Mcc Telephony Of The Mid West Llc Sd | Landline | < 1% |
| Dickey Rural Telephone Cooperative | Landline | < 1% |
| Interstate Telecom Coop Inc Minnesota | Landline | < 1% |
Prefixes
| Prefix | City | Carrier | Type |
|---|---|---|---|
| Oldham | Alliance Comm. Coopeative, Inc. (split Rock) | Landline | |
| Cody | Great Plains Communications, Inc. | Landline | |
| Stratford | James Valley Cooperative Telephone Company | Landline | |
| Lodgepole | West River Cooperative Telephone Company | Landline | |
| Strandburg | Stockholm - Strandburg Telephone Co. | Landline | |
| Sioux Falls | Qwest Corporation | Landline | |
| Centerville | Knology of the Plains, Inc. - Sd | Landline | |
| Lake Andes | Fort Randall Telco Dba Mt Rushmore Telephone Co | Landline | |
| Pukwana | Midstate Communications, Inc. | Landline | |
| Brookings | City of Brookings Municipal Telephone Dept. | Landline | |
| Okaton | Golden West Tel Coop Inc Dba Golden West Telecomm | Landline | |
| Pierre | Qwest Corporation | Landline | |
| Elkton | Mcc Telephony of the Mid-west, Llc - Sd | Landline | |
| Parker | Vivian Tel Co Dba Golden West Telecommunications | Landline | |
| Draper | Vivian Tel Co Dba Golden West Telecommunications | Landline | |
| Hot Springs | Cellco Partnership Dba Verizon Wireless - Sd | Wireless | |
| Morristown | Qwest Corporation | Landline | |
| Sioux Falls | Qwest Corporation | Landline | |
| White | Interstate Telecom. Coop., Inc. - South Dakota | Landline | |
| Sioux Falls | Qwest Corporation | Landline | |
| Yankton | Qwest Corporation | Landline | |
| Eden | Venture Communications Cooperative | Landline | |
| Rapid City | New Cingular Wireless Pcs, Llc - Il | Wireless | |
| Claire City | Rc Communications, Inc. | Landline | |
| Glenham | Valley Telecom Cooperative Association, Inc. | Landline | |
| Fairburn | Fort Randall Telco Dba Mt Rushmore Telephone Co | Landline | |
| Marion | Vivian Tel Co Dba Golden West Telecommunications | Landline | |
| Britton | New Cingular Wireless Pcs, Llc - Il | Wireless | |
| North Sioux City | Iowa Wireless Services, Lp | Wireless | |
| Mitchell | Sancom, Inc. Dba Mitchell Telecom - Sd | Landline | |
| Bradley | Interstate Telecom. Coop., Inc. - South Dakota | Landline | |
| Watertown | Cellco Partnership Dba Verizon Wireless - Sd | Wireless | |
| Highmore | Venture Communications Cooperative | Landline | |
| Sioux Falls | At&t Local | Landline | |
| Rapid City | Level 3 Communications, Llc - Sd | Landline | |
| White | Mcc Telephony of the Mid-west, Llc - Sd | Landline | |
| Martin | Golden West Tel Coop Inc Dba Golden West Telecomm | Landline | |
| Salem | Armour Independent Tel Co Dba Golden West Telcomm | Landline | |
| Scotland | Fort Randall Telco Dba Mt Rushmore Telephone Co | Landline | |
| Sioux Falls | Knology of the Plains, Inc. - Sd | Landline | |
| Erwin | New Cingular Wireless Pcs, Llc - Il | Wireless | |
| Faith | West River Cooperative Telephone Company | Landline | |
| Reliance | Vivian Tel Co Dba Golden West Telecommunications | Landline | |
| Java | Valley Telecom Cooperative Association, Inc. | Landline | |
| Hudson | Qwest Corporation | Landline | |
| Sturgis | Qwest Corporation | Landline | |
| Colman | Qwest Corporation | Landline | |
| Sioux Falls | Qwest Corporation | Landline | |
| Dell Rapids | Alliance Comm. Coopeative, Inc. (split Rock) | Landline | |
| Britton | New Cingular Wireless Pcs, Llc - Il | Wireless | |
| Woonsocket | Venture Communications Cooperative | Landline | |
| Sioux Falls | Qwest Corporation | Landline | |
| Mc Laughlin | Qwest Corporation | Landline | |
| Aurora | Cellco Partnership Dba Verizon Wireless - Sd | Wireless | |
| Frankfort | Venture Communications Cooperative | Landline | |
| Ramona | Mccook Cooperative Telephone Company | Landline | |
| Aberdeen | Wireless | ||
| Agar | Venture Communications Cooperative | Landline | |
| Houghton | James Valley Cooperative Telephone Company | Landline | |
| Rapid City | Mcc Telephony of the Mid-west, Llc - Sd | Wireless | |
| Clark | New Cingular Wireless Pcs, Llc - Il | Wireless | |
| Columbia | James Valley Cooperative Telephone Company | Landline | |
| Gettysburg | Venture Communications Cooperative | Landline | |
| Kimball | Cellco Partnership Dba Verizon Wireless - Sd | Wireless | |
| Yankton | New Cingular Wireless Pcs, Llc - Il | Wireless | |
| Mud Butte | Golden West Tel Coop Inc Dba Golden West Telecomm | Landline | |
| Gregory | Cellco Partnership Dba Verizon Wireless - Sd | Wireless | |
| Sioux Falls | At&t Local | Landline | |
| Brentford | James Valley Cooperative Telephone Company | Landline | |
| Beresford | Fort Randall Telco Dba Mt Rushmore Telephone Co | Landline | |
| Glenham | Cellco Partnership Dba Verizon Wireless - Sd | Wireless | |
| Tea | Knology Community Telephone, Inc. | Landline | |
| Wessington Springs | Santel Communications Cooperative, Inc.-sd | Landline | |
| Plankinton | Midstate Communications, Inc. | Landline | |
| Rutland | Interstate Telecom. Coop., Inc. - South Dakota | Landline | |
| Camp Crook | West River Cooperative Telephone Company | Landline | |
| Freeman | Vivian Tel Co Dba Golden West Telecommunications | Landline | |
| Sturgis | New Cingular Wireless Pcs, Llc - Il | Wireless | |
| De Smet | Qwest Corporation | Landline | |
| Faith | West River Cooperative Telephone Company | Landline | |
| Blunt | Venture Communications Cooperative | Landline | |
| Harrison | Midstate Communications, Inc. | Landline | |
| Bryant | Interstate Telecom. Coop., Inc. - South Dakota | Landline | |
| Harrisburg | Cellco Partnership Dba Verizon Wireless - Sd | Wireless | |
| Glenham | Cellco Partnership Dba Verizon Wireless - Sd | Wireless | |
| Ortley | Rc Communications, Inc. | Landline | |
| Milbank | New Cingular Wireless Pcs, Llc - Il | Wireless | |
| Fort Pierre | Golden West Tel Coop Inc Dba Golden West Telecomm | Landline | |
| Ferney | James Valley Cooperative Telephone Company | Landline | |
| Bristol | James Valley Cooperative Telephone Company | Landline | |
| Murdo | Vivian Tel Co Dba Golden West Telecommunications | Landline | |
| Belle Fourche | New Cingular Wireless Pcs, Llc - Il | Wireless | |
| Pierre | New Cingular Wireless Pcs, Llc - Il | Wireless | |
| Aberdeen | New Cingular Wireless Pcs, Llc - Il | Wireless | |
| Garden City | Interstate Telecom. Coop., Inc. - South Dakota | Landline | |
| Deadwood | Cellco Partnership Dba Verizon Wireless - Sd | Wireless | |
| Tolstoy | Venture Communications Cooperative | Landline | |
| Huron | Cellco Partnership Dba Verizon Wireless - Sd | Wireless | |
| Dupree | New Cingular Wireless Pcs, Llc - Il | Wireless | |
| White Owl | Golden West Tel Coop Inc Dba Golden West Telecomm | Landline | |
| Rapid City | Qwest Corporation | Landline | |
| Plankinton | Santel Communications Cooperative, Inc.-sd | Landline | |
| Jasper | Citizens Telecom Co Mn-frontier Citizens Com-mn | Landline | |
| Hazel | Interstate Telecom. Coop., Inc. - South Dakota | Landline | |
| Wentworth | Interstate Telecom. Coop., Inc. - South Dakota | Landline | |
| Canistota | Sioux Valley Tel Dba Golden West Telecommunication | Landline | |
| Custer | New Cingular Wireless Pcs, Llc - Il | Wireless | |
| Pierre | At&t Local | Landline | |
| Rapid City | Qwest Corporation | Landline | |
| Miller | Venture Communications Cooperative | Landline | |
| Hecla | Dickey Rural Telephone Cooperative | Landline | |
| Parmelee | Vivian Tel Co Dba Golden West Telecommunications | Landline | |
| Interior | Golden West Tel Coop Inc Dba Golden West Telecomm | Landline | |
| Madison | Interstate Telecom. Coop., Inc. - South Dakota | Landline | |
| Beresford | 360networks (usa) Inc. - Sd | Wireless | |
| Vermillion | Mcleodusa Telecommunications Services, Inc.- Sd | Landline | |
| Alexandria | Tri-county Telcom, Inc. | Landline | |
| Houghton | James Valley Cooperative Telephone Company | Landline | |
| Scotland | Vivian Tel Co Dba Golden West Telecommunications | Landline | |
| Doland | James Valley Cooperative Telephone Company | Landline | |
| Vermillion | Sprint Communications Company, L.p. - Sd | Landline | |
| Sioux Falls | Tc Systems, Inc. - Sd | Landline | |
| Geddes | Midstate Communications, Inc. | Landline | |
| South Shore | Stockholm - Strandburg Telephone Co. | Landline | |
| Revillo | Farmers Mutual Telephone Co. | Landline | |
| Burke | Vivian Tel Co Dba Golden West Telecommunications | Landline | |
| Sioux Falls | Qwest Corporation | Landline | |
| Sioux Falls | Qwest Corporation | Landline | |
| Chamberlain | Midstate Communications, Inc. | Landline | |
| Sioux Falls | Union Tel. Co. Dba Golden West Telecommunications | Landline | |
| Lake Norden | Interstate Telecom. Coop., Inc. - South Dakota | Landline | |
| Sisseton | New Cingular Wireless Pcs, Llc - Il | Wireless | |
| Sturgis | Cellco Partnership Dba Verizon Wireless - Sd | Wireless | |
| Vermillion | New Cingular Wireless Pcs, Llc - Il | Wireless | |
| Aberdeen | Midcontinent Communications - Sd | Landline | |
| Carpenter | Qwest Corporation | Landline | |
| Sioux Falls | Qwest Corporation | Landline | |
| Sioux Falls | Long Lines Wireless, Llc | Wireless | |
| Ludlow | Consolidated Telcom | Landline | |
| Sioux Falls | Qwest Corporation | Landline | |
| Sturgis | Qwest Corporation | Landline | |
| Milbank | Stockholm - Strandburg Telephone Co. | Landline | |
| Onaka | Venture Communications Cooperative | Landline | |
| Kaylor | Vivian Tel Co Dba Golden West Telecommunications | Landline | |
| Gettysburg | Cellco Partnership Dba Verizon Wireless - Sd | Wireless | |
| Redfield | |||
| Martin | New Cingular Wireless Pcs, Llc - Il | Wireless | |
| Wolsey | Venture Communications Cooperative | Landline | |
| Colome | Vivian Tel Co Dba Golden West Telecommunications | Landline | |
| Miller | Wireless | ||
| Sisseton | Venture Communications Cooperative | Landline | |
| Mitchell | Qwest Corporation | Landline | |
| Sioux Falls | Qwest Corporation | Landline | |
| Rapid City | New Cingular Wireless Pcs, Llc - Il | Wireless | |
| Valentine | Great Plains Communications, Inc. | Landline | |
| Irene | Knology Community Telephone, Inc. | Landline | |
| Parkston | Tri-county Telcom, Inc. | Landline | |
| Mission | New Cingular Wireless Pcs, Llc - Il | Wireless | |
| Wagner | Fort Randall Telco Dba Mt Rushmore Telephone Co | Landline | |
| Rapid City | West River Cooperative Telephone Company | Landline | |
| Vermillion | Qwest Corporation | Landline | |
| Wessington | Santel Communications Cooperative, Inc.-sd | Landline | |
| Wall | Golden West Tel Coop Inc Dba Golden West Telecomm | Landline | |
| Akaska | Venture Communications Cooperative | Landline | |
| Chamberlain | 360networks (usa) Inc. - Sd | Landline | |
| Rapid City | Cellco Partnership Dba Verizon Wireless - Sd | Wireless | |
| Egan | Qwest Corporation | Landline | |
| Spearfish | Qwest Corporation | Landline | |
| Milbank | Cellco Partnership Dba Verizon Wireless - Sd | Wireless | |
| Onaka | Venture Communications Cooperative | Landline | |
| Spearfish | New Cingular Wireless Pcs, Llc - Il | Wireless | |
| Ellsworth Afb | Qwest Corporation | Landline | |
| Black Hawk | Qwest Corporation | Landline | |
| Crooks | Alliance Communications Cooperative, Inc. (baltic) | Landline | |
| Aurora | New Cingular Wireless Pcs, Llc - Il | Wireless | |
| Dell Rapids | Alliance Communications Cooperative, Inc. (baltic) | Landline | |
| Harrisburg | Qwest Corporation | Landline | |
| Sioux Falls | Qwest Corporation | Landline | |
| Mansfield | Western Telephone Co. | Landline | |
| New Effington | Roberts County Telephone Cooperative Assn. | Landline | |
| Colman | Knology of the Plains, Inc. - Sd | Landline | |
| Quinn | Cellco Partnership Dba Verizon Wireless - Sd | Wireless | |
| Redfield | Cellco Partnership Dba Verizon Wireless - Sd | Wireless | |
| Deadwood | Qwest Corporation | Landline | |
| Brandon | Cellco Partnership Dba Verizon Wireless - Sd | Wireless | |
| Canton | Knology of the Plains, Inc. - Sd | Landline | |
| Rosholt | Valley Telephone Co. | Landline | |
| Armour | Midstate Communications, Inc. | Landline | |
| Milbank | Midcontinent Communications - Sd | Landline | |
| Sioux Falls | Qwest Corporation | Landline | |
| Hill City | Qwest Corporation | Landline | |
| Utica | Qwest Corporation | Landline | |
| Arlington | Qwest Corporation | Landline | |
| Brookings | City of Brookings Municipal Telephone Dept. | Landline | |
| Pukwana | Midstate Communications, Inc. | Landline | |
| Mobridge | New Cingular Wireless Pcs, Llc - Il | Wireless | |
| Aberdeen | Qwest Corporation | Landline | |
| Sioux Falls | Qwest Corporation | Landline | |
| Edgemont | Golden West Tel Coop Inc Dba Golden West Telecomm | Landline | |
| Ideal | Vivian Tel Co Dba Golden West Telecommunications | Landline | |
| Flandreau | Knology of the Plains, Inc. - Sd | Landline | |
| Sioux Falls | Qwest Corporation | Landline | |
| Quinn | Golden West Tel Coop Inc Dba Golden West Telecomm | Landline | |
| Onaka | Venture Communications Cooperative | Landline | |
| Spearfish | Knology of the Black Hills, Llc - Sd | Landline | |
| Britton | Dickey Rural Telephone Cooperative | Landline | |
| Kennebec | Kennebec Telephone Co. | Landline | |
| Yale | Qwest Corporation | Landline | |
| Presho | Kennebec Telephone Co. | Landline | |
| Toronto | Interstate Telecom. Coop., Inc. - South Dakota | Landline | |
| Deadwood | Cellco Partnership Dba Verizon Wireless - Sd | Wireless | |
| Sioux Falls | Qwest Corporation | Landline | |
| Lodgepole | Consolidated Telcom | Landline | |
| Ortley | Interstate Telecom. Coop., Inc. - South Dakota | Landline | |
| Frederick | James Valley Cooperative Telephone Company | Landline | |
| Willow Lake | Interstate Telecom. Coop., Inc. - South Dakota | Landline | |
| Rapid City | Knology of the Black Hills, Llc - Sd | Landline | |
| Brandon | Alliance Comm. Coopeative, Inc. (split Rock) | Landline | |
| Bonesteel | Vivian Tel Co Dba Golden West Telecommunications | Landline | |
| Waubay | Midcontinent Communications - Sd | Landline | |
| Brandon | Alliance Communications Cooperative, Inc. - Sd | Landline | |
| Rosholt | Venture Communications Cooperative | Landline | |
| Elkton | Interstate Telecom. Coop., Inc. - South Dakota | Landline | |
| Tulare | Venture Communications Cooperative | Landline | |
| Oglala | Native American Telecom - Pine Ridge Llc - Sd | Landline | |
| Pierre | Midcontinent Communications - Sd | Landline | |
| Rapid City | Cellco Partnership Dba Verizon Wireless - Sd | Wireless | |
| Sioux Falls | Qwest Corporation | Landline | |
| Humboldt | Knology Community Telephone, Inc. | Landline | |
| Beresford | Knology Community Telephone, Inc. | Landline | |
| Rapid City | Qwest Corporation | Landline | |
| Hecla | James Valley Cooperative Telephone Company | Landline | |
| Arlington | Interstate Telecom. Coop., Inc. - South Dakota | Landline | |
| Gann Valley | Midstate Communications, Inc. | Landline | |
| Sioux Falls | Qwest Corporation | Landline | |
| Kadoka | Golden West Tel Coop Inc Dba Golden West Telecomm | Landline | |
| Beresford | Knology Community Telephone, Inc. | Landline | |
| Salem | Mccook Cooperative Telephone Company | Landline | |
| Gregory | Vivian Tel Co Dba Golden West Telecommunications | Landline | |
| Elk Point | Bandwidth.com Clec, Llc - Sd | Landline | |
| Brookings | City of Brookings Municipal Telephone Dept. | Landline | |
| Vermillion | Dakotacomm, Llc - Sd | ||
| Ethan | Santel Communications Cooperative, Inc.-sd | Landline | |
| Sioux Falls | Midcontinent Communications - Sd | Landline | |
| Yankton | Brookings Municipal Utilities | Wireless | |
| Hot Springs | Golden West Tel Coop Inc Dba Golden West Telecomm | Landline | |
| Watertown | Midcontinent Communications - Sd | Landline | |
| Chancellor | Union Tel. Co. Dba Golden West Telecommunications | Landline | |
| Owanka | Golden West Tel Coop Inc Dba Golden West Telecomm | Landline | |
| Big Stone City | Qwest Corporation | Landline | |
| Brandon | New Cingular Wireless Pcs, Llc - Il | Wireless | |
| Philip | Golden West Tel Coop Inc Dba Golden West Telecomm | Landline | |
| Platte | New Cingular Wireless Pcs, Llc - Il | Wireless | |
| Claire City | Roberts County Telephone Cooperative Assn. | Landline | |
| Kadoka | Golden West Tel Coop Inc Dba Golden West Telecomm | Landline | |
| Milbank | Rc Communications, Inc. - Sd | Landline | |
| Mc Laughlin | West River Telecommunications Cooperative - Sd | Landline | |
| Roscoe | Valley Telecom Cooperative Association, Inc. | Landline | |
| Wilmot | Rc Communications, Inc. | Landline | |
| Trent | Sioux Valley Tel Dba Golden West Telecommunication | Landline | |
| White | Interstate Telecom. Coop., Inc. - South Dakota | Landline | |
| Fort Pierre | New Cingular Wireless Pcs, Llc - Il | Wireless | |
| Orient | Western Telephone Co. | Landline | |
| Pollock | Valley Telecom Cooperative Association, Inc. | Landline | |
| White River | Golden West Tel Coop Inc Dba Golden West Telecomm | Landline | |
| Huron | New Cingular Wireless Pcs, Llc - Il | Wireless | |
| Hosmer | Cellco Partnership Dba Verizon Wireless - Sd | Wireless | |
| Pierpont | Venture Communications Cooperative | Landline | |
| Sioux Falls | New Cingular Wireless Pcs, Llc - Il | Wireless | |
| Fulton | Qwest Corporation | Landline | |
| Milbank | Midcontinent Communications - Sd | Landline | |
| Rapid City | Bandwidth.com Clec, Llc - Sd | Landline | |
| De Smet | Cellco Partnership Dba Verizon Wireless - Sd | Wireless | |
| Rapid City | Level 3 Communications, Llc - Sd | Landline | |
| Sioux Falls | Midcontinent Communications - Sd | Landline | |
| Wakonda | Midcontinent Communications - Sd | Landline | |
| Wagner | Vivian Tel Co Dba Golden West Telecommunications | Landline | |
| Canistota | Armour Independent Tel Co Dba Golden West Telcomm | Landline | |
| Pierre | Qwest Corporation | Landline | |
| Belle Fourche | Midcontinent Communications - Sd | Landline | |
| Wall | Golden West Tel Coop Inc Dba Golden West Telecomm | Landline | |
| Valentine | Qwest Corporation | Landline | |
| Hurley | Knology Community Telephone, Inc. | Landline | |
| Aberdeen | Wireless | ||
| Jefferson | Qwest Corporation | Landline | |
| Lennox | Knology Community Telephone, Inc. | Landline | |
| Sioux Falls | Qwest Corporation | Landline | |
| North Sioux City | Qwest Corporation | Landline | |
| Mitchell | New Cingular Wireless Pcs, Llc - Il | Wireless | |
| Faith | Golden West Tel Coop Inc Dba Golden West Telecomm | Landline | |
| Baltic | Midcontinent Communications - Sd | Landline | |
| Aberdeen | New Cingular Wireless Pcs, Llc - Il | Wireless | |
| Glencross | Qwest Corporation | Landline | |
| Chamberlain | Qwest Corporation | Landline | |
| Sioux Falls | New Cingular Wireless Pcs, Llc - Il | Wireless | |
| Wentworth | Qwest Corporation | Landline | |
| Rapid City | Knology of the Black Hills, Llc - Sd | Landline | |
| Rapid City | Qwest Corporation | Landline | |
| Andover | James Valley Cooperative Telephone Company | Landline | |
| Salem | New Cingular Wireless Pcs, Llc - Il | Wireless | |
| Hermosa | Cellco Partnership Dba Verizon Wireless - Sd | Wireless | |
| Fairview | Alliance Communications Cooperative, Inc. (baltic) | Landline | |
| Henry | Interstate Telecom. Coop., Inc. - South Dakota | Landline | |
| Onida | Venture Communications Cooperative | Landline | |
| Trail City | West River Telecommunications Coop (mobridge) - Sd | Landline | |
| Leola | Valley Telecom Cooperative Association, Inc. | Landline | |
| Box Elder | Qwest Corporation | Landline | |
| Sioux Falls | Qwest Corporation | Landline | |
| Watertown | New Cingular Wireless Pcs, Llc - Il | Wireless | |
| Gayville | Knology Community Telephone, Inc. | Landline | |
| Smithwick | Golden West Tel Coop Inc Dba Golden West Telecomm | Landline | |
| Kyle | Native American Telecom - Pine Ridge Llc - Sd | Landline | |
| Leola | Valley Telecom Cooperative Association, Inc. | Landline | |
| Herreid | Valley Telecom Cooperative Association, Inc. | Landline | |
| Sioux Falls | Midcontinent Communications - Sd | Landline | |
| Wagner | Armour Independent Tel Co Dba Golden West Telcomm | Landline | |
| Akron | Heartland Telecom Company of Iowa Dba Hickorytech | Landline | |
| Dupree | Cheyenne River Sioux Tribal Telephone Auth. | Landline | |
| Rapid City | Knology of the Black Hills, Llc - Sd | Landline | |
| White | Interstate Telecom. Coop., Inc. - South Dakota | Landline | |
| Custer | Qwest Corporation | Landline | |
| Sturgis | Cellco Partnership Dba Verizon Wireless - Sd | Wireless | |
| Rapid City | Qwest Corporation | Landline | |
| Wall | Golden West Tel Coop Inc Dba Golden West Telecomm | Landline | |
| Lake Norden | Mcc Telephony of the Mid-west, Llc - Sd | Landline | |
| Sioux Falls | Midcontinent Communications - Sd | Landline | |
| Winfred | Mccook Cooperative Telephone Company | Landline | |
| Avon | Santel Communications Cooperative, Inc.-sd | Landline | |
| North Sioux City | Long Lines Metro, Llc - Sd | Landline | |
| Vermillion | Brookings Municipal Utilities | Wireless | |
| Highmore | New Cingular Wireless Pcs, Llc - Il | Wireless | |
| Burbank | Qwest Corporation | Landline | |
| Canton | Midcontinent Communications - Sd | Landline | |
| Clear Lake | Interstate Telecom. Coop., Inc. - South Dakota | Landline | |
| Spearfish | Bandwidth.com Clec, Llc - Sd | Landline | |
| Corsica | Sioux Valley Tel Dba Golden West Telecommunication | Landline | |
| Watertown | Qwest Corporation | Landline | |
| Sioux Falls | Ymax Communications Corp. - Sd | Landline | |
| Porcupine | Golden West Tel Coop Inc Dba Golden West Telecomm | Landline | |
| Clear Lake | Interstate Telecom. Coop., Inc. - South Dakota | Landline | |
| Elk Point | Jefferson Telephone Co. | Landline | |
| Sioux Falls | Level 3 Communications, Llc - Sd | Landline | |
| Mitchell | Level 3 Communications, Llc - Sd | Landline | |
| Whitehorse | Cheyenne River Sioux Tribal Telephone Auth. | Landline | |
| Aberdeen | Northern Valley Communications, Llc | Landline | |
| Rapid City | Landline | ||
| Eureka | Dickey Rural Telephone Cooperative | Landline | |
| Belle Fourche | Qwest Corporation | Landline | |
| Rapid City | Knology of the Black Hills, Llc - Sd | Landline | |
| Pierre | Qwest Corporation | Landline | |
| Elk Point | New Cingular Wireless Pcs, Llc - Il | Wireless | |
| Lennox | New Cingular Wireless Pcs, Llc - Il | Wireless | |
| Sioux Falls | Cellco Partnership Dba Verizon Wireless - Sd | Wireless | |
| Sioux Falls | Cellco Partnership Dba Verizon Wireless - Sd | Wireless | |
| Aberdeen | Level 3 Communications, Llc - Sd | Landline | |
| Sturgis | Midcontinent Communications - Sd | Landline | |
| Sioux Falls | New Cingular Wireless Pcs, Llc - Il | Wireless | |
| Buffalo Gap | Golden West Tel Coop Inc Dba Golden West Telecomm | Landline | |
| Sturgis | Cellco Partnership Dba Verizon Wireless - Sd | Wireless | |
| Aberdeen | Cellco Partnership Dba Verizon Wireless - Sd | Wireless | |
| Dell Rapids | Sioux Valley Tel Dba Golden West Telecommunication | Landline | |
| Springfield | Vivian Tel Co Dba Golden West Telecommunications | Landline | |
| Rapid City | Cellco Partnership Dba Verizon Wireless - Sd | Wireless | |
| Fedora | Santel Communications Cooperative, Inc.-sd | Landline | |
| Watertown | Rc Communications, Inc. - Sd | Landline | |
| Mission | Vivian Tel Co Dba Golden West Telecommunications | Landline | |
| Hudson | Alliance Communications Cooperative, Inc. (baltic) | Landline | |
| Gettysburg | Cellco Partnership Dba Verizon Wireless - Sd | Wireless | |
| Wentworth | Qwest Corporation | Landline | |
| White | Interstate Telecom. Coop., Inc. - Minnesota | Landline | |
| Eagle Butte | Cheyenne River Sioux Tribal Telephone Auth. | Landline | |
| Sioux Falls | Qwest Corporation | Landline | |
| Sioux Falls | Qwest Corporation | Landline | |
| Corona | Qwest Corporation | Landline | |
| Sioux Falls | Qwest Corporation | Landline | |
| Brookings | Qwest Corporation | Landline | |
| Custer | New Cingular Wireless Pcs, Llc - Il | Wireless | |
| Brandon | New Cingular Wireless Pcs, Llc - Il | Wireless | |
| Letcher | Cellco Partnership Dba Verizon Wireless - Sd | Wireless | |
| Mission Hill | Qwest Corporation | Landline | |
| Redfield | Cellco Partnership Dba Verizon Wireless - Sd | Wireless | |
| Sioux Falls | Level 3 Communications, Llc - Sd | Landline | |
| Reva | West River Cooperative Telephone Company | Landline | |
| Highmore | Cellco Partnership Dba Verizon Wireless - Sd | Wireless | |
| Groton | James Valley Cooperative Telephone Company | Landline | |
| Fort Pierre | Cellco Partnership Dba Verizon Wireless - Sd | Wireless | |
| Yankton | Knology of the Plains, Inc. - Sd | Landline | |
| Winner | Cellco Partnership Dba Verizon Wireless - Sd | Wireless | |
| Aberdeen | Qwest Corporation | Landline | |
| Herreid | Valley Telecom Cooperative Association, Inc. | Landline | |
| Sioux Falls | Qwest Corporation | Landline | |
| Mitchell | Qwest Corporation | Landline | |
| Sturgis | Knology of the Black Hills, Llc - Sd | Landline | |
| Elk Point | Qwest Corporation | Landline | |
| Madison | Midcontinent Communications - Sd | Landline | |
| Onida | Venture Communications Cooperative | Landline | |
| Sioux Falls | Qwest Corporation | Landline | |
| Irene | Knology Community Telephone, Inc. | Landline | |
| Wounded Knee | Golden West Tel Coop Inc Dba Golden West Telecomm | Landline | |
| Centerville | Fort Randall Telco Dba Mt Rushmore Telephone Co | Landline | |
| Witten | Vivian Tel Co Dba Golden West Telecommunications | Landline | |
| Forbes | Dickey Rural Telephone Cooperative | Landline | |
| Bath | Qwest Corporation | Landline | |
| Pickstown | Northeast Nebraska Telephone Co. | Landline | |
| Pringle | Vivian Tel Co Dba Golden West Telecommunications | Landline | |
| Vermillion | Landline | ||
| Mitchell | New Cingular Wireless Pcs, Llc - Il | Wireless | |
| Philip | Golden West Tel Coop Inc Dba Golden West Telecomm | Landline | |
| Kimball | Cellco Partnership Dba Verizon Wireless - Sd | Wireless | |
| Martin | Great Plains Communications, Inc. | Landline | |
| Strandburg | Interstate Telecom. Coop., Inc. - South Dakota | Landline | |
| Sioux Falls | Aerial Communications | Wireless | |
| Murdo | Cellco Partnership Dba Verizon Wireless - Sd | Wireless | |
| Rapid City | Qwest Corporation | Landline | |
| Hot Springs | Cellco Partnership Dba Verizon Wireless - Sd | Wireless | |
| Rapid City | Qwest Corporation | Landline | |
| Vermillion | Qwest Corporation | Landline | |
| Webster | Midcontinent Communications - Sd | Landline | |
| Carthage | Alliance Comm. Coopeative, Inc. (split Rock) | Landline | |
| Lake Andes | Cellco Partnership Dba Verizon Wireless - Sd | Wireless | |
| Lead | 360networks (usa) Inc. - Sd | Landline | |
| Redfield | Midcontinent Communications - Sd | Landline | |
| Roscoe | Venture Communications Cooperative | Landline | |
| Belle Fourche | Knology of the Black Hills, Llc - Sd | Landline | |
| Sioux Falls | Bandwidth.com Clec, Llc - Sd | Landline | |
| Sioux Falls | Cellco Partnership Dba Verizon Wireless - Sd | Wireless | |
| Rapid City | Knology of the Black Hills, Llc - Sd | Landline | |
| Sioux Falls | Knology of the Plains, Inc. - Sd | Landline | |
| Newcastle | Rt Communications | Landline | |
| Amherst | Venture Communications Cooperative | Landline | |
| Faulkton | Western Telephone Co. | Landline | |
| Huron | Cellco Partnership Dba Verizon Wireless - Sd | Wireless | |
| Aberdeen | Qwest Corporation | Landline | |
| Sioux Falls | At&t Local | Landline | |
| Long Lake | Dickey Rural Telephone Cooperative | Landline | |
| Groton | James Valley Cooperative Telephone Company | Landline | |
| White Lake | Midstate Communications, Inc. | Landline | |
| Sioux Falls | New Cingular Wireless Pcs, Llc - Il | Wireless | |
| Madison | Cellco Partnership Dba Verizon Wireless - Sd | Wireless | |
| Winner | Cellco Partnership Dba Verizon Wireless - Sd | Wireless | |
| Vermillion | Midcontinent Communications - Sd | Landline | |
| Watertown | New Cingular Wireless Pcs, Llc - Il | Wireless | |
| Miller | Midcontinent Communications - Sd | Landline | |
| Ralph | Consolidated Telcom | Landline | |
| Lake Andes | New Cingular Wireless Pcs, Llc - Il | Wireless | |
| Gary | Interstate Telecom. Coop., Inc. - South Dakota | Landline | |
| Watertown | Qwest Corporation | Landline | |
| Parkston | New Cingular Wireless Pcs, Llc - Il | Wireless | |
| Saint Onge | Qwest Corporation | Landline | |
| Lemmon | West River Cooperative Telephone Company | Landline | |
| Lebanon | Venture Communications Cooperative | Landline | |
| Elkton | Cellco Partnership Dba Verizon Wireless - Sd | Wireless | |
| Eagle Butte | Cheyenne River Sioux Tribal Telephone Auth. | Landline | |
| Wolsey | Midcontinent Communications - Sd | Landline | |
| Yankton | Knology of the Plains, Inc. - Sd | Landline | |
| Harrisburg | Knology of the Plains, Inc. - Sd | Landline | |
| Yankton | New Cingular Wireless Pcs, Llc - Il | Wireless | |
| Saint Lawrence | Qwest Corporation | Landline | |
| Martin | New Cingular Wireless Pcs, Llc - Il | Wireless | |
| Belle Fourche | West River Cooperative Telephone Company | Landline | |
| Castlewood | Mcc Telephony of the Mid-west, Llc - Sd | Landline | |
| Canova | Mccook Cooperative Telephone Company | Landline | |
| Sioux Falls | Qwest Corporation | Landline | |
| Madison | Knology of the Plains, Inc. - Sd | Landline | |
| Keystone | Fort Randall Telco Dba Mt Rushmore Telephone Co | Landline | |
| Rapid City | New Cingular Wireless Pcs, Llc - Il | Wireless | |
| Spearfish | Cellco Partnership Dba Verizon Wireless - Sd | Wireless | |
| Rapid City | Qwest Corporation | Landline | |
| Sioux Falls | Midcontinent Communications - Sd | Landline | |
| Lake Preston | Qwest Corporation | Landline | |
| Watertown | Wireless | ||
| Frankfort | Qwest Corporation | Landline | |
| Fort Thompson | Midstate Communications, Inc. | Landline | |
| Aurora | New Cingular Wireless Pcs, Llc - Il | Wireless | |
| White River | Golden West Tel Coop Inc Dba Golden West Telecomm | Landline | |
| Castlewood | Interstate Telecom. Coop., Inc. - South Dakota | Landline | |
| Nunda | New Cingular Wireless Pcs, Llc - Il | Wireless | |
| Tyndall | Cellco Partnership Dba Verizon Wireless - Sd | Wireless | |
| Blunt | Venture Communications Cooperative | Landline | |
| Sioux Falls | Cellco Partnership Dba Verizon Wireless - Sd | Wireless | |
| Sioux Falls | New Cingular Wireless Pcs, Llc - Il | Wireless | |
| Eden | Venture Communications Cooperative | Landline | |
| Aberdeen | At&t Local | Landline | |
| Woonsocket | Santel Communications Cooperative, Inc.-sd | Landline | |
| Sioux Falls | Cellco Partnership Dba Verizon Wireless - Sd | Wireless | |
| Watertown | New Cingular Wireless Pcs, Llc - Il | Wireless | |
| North Sioux City | Long Lines Metro, Llc - Sd | Landline | |
| Webster | Interstate Telecom. Coop., Inc. - South Dakota | Landline | |
| Ralph | Consolidated Telcom | Landline | |
| Parkston | Santel Communications Cooperative, Inc.-sd | Landline | |
| Huron | Cellco Partnership Dba Verizon Wireless - Sd | Wireless | |
| Sioux Falls | New Cingular Wireless Pcs, Llc - Il | Wireless | |
| Rapid City | Qwest Corporation | Landline | |
| Mitchell | Midcontinent Communications - Sd | Landline | |
| Sioux Falls | South Dakota Network, Llc | Landline | |
| Pierre | Qwest Corporation | Landline | |
| Sioux Falls | 365 Wireless, Llc | Wireless | |
| De Smet | Qwest Corporation | Landline | |
| Peever | Rc Communications, Inc. | Landline | |
| Howard | New Cingular Wireless Pcs, Llc - Il | Wireless | |
| Webster | New Cingular Wireless Pcs, Llc - Il | Wireless | |
| Sioux Falls | Aerial Communications | Wireless | |
| Bowdle | Venture Communications Cooperative | Landline | |
| Sisseton | New Cingular Wireless Pcs, Llc - Il | Wireless | |
| Roscoe | Wireless | ||
| Belvidere | Cellco Partnership Dba Verizon Wireless - Sd | Wireless | |
| Ree Heights | Cellco Partnership Dba Verizon Wireless - Sd | Wireless | |
| Alexandria | Mccook Cooperative Telephone Company | Landline | |
| Milbank | Cellco Partnership Dba Verizon Wireless - Sd | Wireless | |
| Lennox | New Cingular Wireless Pcs, Llc - Il | Wireless | |
| Sioux Falls | Brookings Municipal Utilities | Wireless | |
| Clark | New Cingular Wireless Pcs, Llc - Il | Wireless | |
| Rapid City | New Cingular Wireless Pcs, Llc - Il | Wireless | |
| Faith | City of Faith Municipal Telephone Co. | Landline | |
| Tabor | Fort Randall Telco Dba Mt Rushmore Telephone Co | Landline | |
| Lake Preston | Sprint Communications Company, L.p. - Sd | Landline | |
| Vermillion | Cellco Partnership Dba Verizon Wireless - Sd | Wireless | |
| Chamberlain | Midstate Telecom, Inc. - Sd | Landline | |
| Martin | New Cingular Wireless Pcs, Llc - Il | Wireless | |
| Alexandria | Mccook Cooperative Telephone Company | Landline | |
| Keystone | New Cingular Wireless Pcs, Llc - Il | Wireless | |
| Winner | Bandwidth.com Clec, Llc - Sd | Landline | |
| Huron | Midcontinent Communications - Sd | Landline | |
| Sioux Falls | Qwest Corporation | Landline | |
| Redfield | Northern Valley Communications, Llc | Landline | |
| Pierre | New Cingular Wireless Pcs, Llc - Il | Wireless | |
| Whitewood | Midcontinent Communications - Sd | Landline | |
| Rapid City | Qwest Corporation | Landline | |
| Saint Francis | Great Plains Communications, Inc. | Landline | |
| Erwin | Mcc Telephony of the Mid-west, Llc - Sd | Landline | |
| Ipswich | Valley Telecom Cooperative Association, Inc. | Landline | |
| Yankton | Midcontinent Communications - Sd | Landline | |
| Kadoka | Kadoka Tel Co Dba Golden West Telecommunications | Landline | |
| Kimball | New Cingular Wireless Pcs, Llc - Il | Wireless | |
| Rapid City | At&t Local | Landline | |
| Miller | New Cingular Wireless Pcs, Llc - Il | Wireless | |
| Watertown | Qwest Corporation | Landline | |
| Claire City | Red River Rural Tel Assn Dba Red River Comm - Nd | Landline | |
| Herrick | Three River Telephone Company | Landline | |
| Deadwood | Midcontinent Communications - Sd | Landline | |
| Madison | Cellco Partnership Dba Verizon Wireless - Sd | Wireless | |
| Clear Lake | Interstate Telecom. Coop., Inc. - South Dakota | Landline | |
| Martin | New Cingular Wireless Pcs, Llc - Il | Wireless | |
| Brookings | City of Brookings Municipal Telephone Dept. | Landline | |
| Yankton | Cellco Partnership Dba Verizon Wireless - Sd | Wireless | |
| Platte | New Cingular Wireless Pcs, Llc - Il | Wireless | |
| Mitchell | Level 3 Communications, Llc - Sd | Landline | |
| Redfield | New Cingular Wireless Pcs, Llc - Il | Wireless | |
| Spearfish | Midcontinent Communications - Sd | Landline | |
| Vermillion | Cellco Partnership Dba Verizon Wireless - Sd | Wireless | |
| Rapid City | Qwest Corporation | Landline | |
| Watertown | Cellco Partnership Dba Verizon Wireless - Sd | Wireless | |
| Sisseton | Mcc Telephony of the Mid-west, Llc - Sd | Wireless | |
| Yankton | Cellco Partnership Dba Verizon Wireless - Sd | Wireless | |
| Aberdeen | Northern Valley Communications, Llc | Landline | |
| Sturgis | At&t Local | Landline | |
| Sioux Falls | Brookings Municipal Utilities | Wireless | |
| Beresford | New Cingular Wireless Pcs, Llc - Il | Wireless | |
| Oelrichs | Golden West Tel Coop Inc Dba Golden West Telecomm | Landline | |
| Sioux Falls | New Cingular Wireless Pcs, Llc - Il | Wireless | |
| Lead | Cellco Partnership Dba Verizon Wireless - Sd | Wireless | |
| Watertown | Knology of the Plains, Inc. - Sd | Landline | |
| Flandreau | Cellco Partnership Dba Verizon Wireless - Sd | Wireless | |
| Sioux Falls | Qwest Corporation | Landline | |
| Huron | Qwest Corporation | Landline | |
| Caputa | Qwest Corporation | Landline | |
| Union | Cellco Partnership Dba Verizon Wireless - Sd | ||
| Sioux Falls | Qwest Corporation | Landline | |
| Frederick | Dickey Rural Telephone Cooperative | Landline | |
| Alcester | Heartland Telecom Company of Iowa Dba Hickorytech | Landline | |
| Beresford | Brookings Municipal Utilities | Wireless | |
| Woonsocket | Santel Communications Cooperative, Inc.-sd | Landline | |
| Flandreau | Cellco Partnership Dba Verizon Wireless - Sd | Wireless | |
| Brookings | Brookings Municipal Utilities | Wireless | |
| Webster | Cellco Partnership Dba Verizon Wireless - Sd | Wireless | |
| Elk Point | Knology of the Plains, Inc. - Sd | Landline | |
| Plankinton | Santel Communications Cooperative, Inc.-sd | Landline | |
| Stephan | Native American Telecom, Llc - Sd | Landline | |
| Wessington Springs | Sioux Valley Tel Dba Golden West Telecommunication | Landline | |
| Mission | New Cingular Wireless Pcs, Llc - Il | Wireless | |
| Watertown | Brookings Municipal Utilities | Wireless | |
| Spearfish | Cellco Partnership Dba Verizon Wireless - Sd | Landline | |
| Woonsocket | New Cingular Wireless Pcs, Llc - Il | Wireless | |
| Watertown | Cellco Partnership Dba Verizon Wireless - Sd | Wireless | |
| New Underwood | Golden West Tel Coop Inc Dba Golden West Telecomm | Landline | |
| Sioux Falls | Brookings Municipal Utilities | Wireless | |
| Winner | New Cingular Wireless Pcs, Llc - Il | Wireless | |
| Milbank | Sstelecom, Inc. - Sd | Landline | |
| Rapid City | Qwest Corporation | Landline | |
| Sioux Falls | Cellco Partnership Dba Verizon Wireless - Sd | Wireless | |
| Sioux Falls | Cellco Partnership Dba Verizon Wireless - Sd | Wireless | |
| Sioux Falls | Mcimetro Access Transmission Services Llc | Wireless | |
| Salem | Cellco Partnership Dba Verizon Wireless - Sd | Wireless | |
| Dupree | New Cingular Wireless Pcs, Llc - Il | Wireless | |
| Yankton | Long Lines Wireless, Llc | Landline | |
| Isabel | Cheyenne River Sioux Tribal Telephone Auth. | Landline | |
| Hosmer | Cellco Partnership Dba Verizon Wireless - Sd | Wireless | |
| Rapid City | Cellco Partnership Dba Verizon Wireless - Sd | Wireless | |
| Deadwood | At&t Local | Landline | |
| Mitchell | Cellco Partnership Dba Verizon Wireless - Sd | Wireless | |
| Brandon | Alliance Communications Cooperative, Inc. - Sd | Landline | |
| Rapid City | New Cingular Wireless Pcs, Llc - Il | Wireless | |
| Salem | Cellco Partnership Dba Verizon Wireless - Sd | Wireless | |
| Wakpala | Standing Rock Telecommunications, Inc. | Wireless | |
| Sturgis | Qwest Corporation | Landline | |
| Sioux Falls | Mcimetro Access Transmission Services Llc | Landline | |
| Sioux Falls | Midcontinent Communications - Sd | Landline | |
| Beresford | Beresford Municipal Telephone Co. | Landline | |
| Jefferson | Knology of the Plains, Inc. - Sd | Landline | |
| Sioux Falls | Mcleodusa Telecommunications Services, Inc.- Sd | Landline | |
| Custer | Cellco Partnership Dba Verizon Wireless - Sd | Wireless | |
| Sioux Falls | Knology of the Plains, Inc. - Sd | Landline | |
| Langford | Venture Communications Cooperative | Landline | |
| Gregory | Cellco Partnership Dba Verizon Wireless - Sd | Wireless | |
| Fort Pierre | Qwest Corporation | Landline | |
| Rapid City | Knology of the Black Hills, Llc - Sd | Landline | |
| Pierre | Level 3 Communications, Llc - Sd | Landline | |
| Aberdeen | Qwest Corporation | Landline | |
| Aberdeen | Qwest Corporation | Landline | |
| Belle Fourche | Cellco Partnership Dba Verizon Wireless - Sd | Wireless | |
| Eureka | Dickey Rural Telephone Cooperative | Landline | |
| North Sioux City | Level 3 Communications, Llc - Sd | Landline | |
| Martin | New Cingular Wireless Pcs, Llc - Il | Wireless | |
| Rapid City | Midcontinent Communications - Sd | Landline | |
| Centerville | Knology of the Plains, Inc. - Sd | Landline | |
| Aberdeen | Cellco Partnership Dba Verizon Wireless - Sd | Wireless | |
| Vermillion | Knology of the Plains, Inc. - Sd | Landline | |
| De Smet | Cellco Partnership Dba Verizon Wireless - Sd | Wireless | |
| Canton | Brookings Municipal Utilities | Wireless | |
| North Sioux City | Fibercom, L.c. | Landline | |
| Mound City | Wireless | ||
| Mitchell | Brookings Municipal Utilities | Wireless | |
| Pierre | Cellco Partnership Dba Verizon Wireless - Sd | Wireless | |
| Lake Andes | Cellco Partnership Dba Verizon Wireless - Sd | Wireless | |
| Edgemont | Golden West Tel Coop Inc Dba Golden West Telecomm | Landline |