The rural telecommunications carrier members of SDTA, as wireline facilities-based communications companies, provide reliable voice and high-speed broadband services within service areas covering more than 76 percent of South Dakota's geography (click this link for a service area map).  

As of December 31, 2017, more than three quarters of the customers located in SDTA member company service areas had access to broadband at 25 MB download/3 MB upload speeds or higher.  In addition, SDTA members and their affiliated company SDN Communications have deployed extensive fiber optic facilities throughout the state to connect many K-12 schools, libraries, county government locations, and public safety facilities. SDTA members and SDN Communications also play a key role in supporting wireless service, which depends on fiber optic lines to carry calls and data from cell towers through the switched network to their ultimate destination. 

Below is a complete listing of and links to each of the SDTA member rural carriers.

• Alliance Communications Cooperative
  
• Beresford Municipal Telephone Company
  
• Cheyenne River Sioux Tribe Tel. Authority
  
• Faith Municipal Telephone Company
  
• Fort Randall Telephone Company
  
• Golden West Telecommunications Cooperative
  
• Interstate Telecommunications Cooperative
  
• James Valley Telecommunications
  
• Kennebec Telephone Company

• Midstate Communications
  
• RC Technologies
  
• Santel Communications Cooperative
  
• Swiftel Communications/Brookings Municipal Telephone
  
• TrioTel Communications
  
• Valley Telecommunications Cooperative
  
• Venture Communications Cooperative
  
• West River Cooperative Telephone Cooperative
  
• West River Telecommunications Cooperative