Call Us: 605-637-5211
  • Bill Pay
  • Webmail
  • Get Fiber
  • Speed Test
  • Remote Support
  • Contact Us
TNICSTNICSTNICSTNICS
  • Home
  • Residential
    • Fiber Area
      • Fiber Internet
      • Premium Wi-Fi
      • Digital TV
      • Voice Services
    • Copper Area
      • Copper Internet
      • Digital TV
      • Voice Services
    • Fixed Wireless Area
      • Fixed Wireless Internet
      • Fixed Wireless Big Stone Lake Area
    • Not Sure
  • Premium Wi-Fi
  • Business
  • Support
    • FAQ
    • Forms and Policies
    • Guides and Brochures
  • News
    • Newsletters
    • Blog
  • About Us
    • Mission
    • Our History
    • Scholarships
    • Board and Staff

CONTACT US

CALL US

Phone: 605-637-5211
Fax: 605-637-5302

FAQ

Click here to find your answer.

MAIL

P.O. Box 197
New Effington, SD 57255

24-Hour AFTER HOUR HELP DESK

Phone: 888-276-3400

CONTACT US

P.O. Box 197
205 Main Street
New Effington, SD 57255

605-637-5211

POPULAR LINKS

  • Blog
  • Guides and Brochures
  • Online Phone Directory

ABOUT US

  • Mission
  • Our History
  • Board and Staff
Copyright 2021 Cornerstone Group | All Rights Reserved | Forms & Policies
  • Home
  • Residential
    • Fiber Area
      • Fiber Internet
      • Premium Wi-Fi
      • Digital TV
      • Voice Services
    • Copper Area
      • Copper Internet
      • Digital TV
      • Voice Services
    • Fixed Wireless Area
      • Fixed Wireless Internet
      • Fixed Wireless Big Stone Lake Area
    • Not Sure
  • Premium Wi-Fi
  • Business
  • Support
    • FAQ
    • Forms and Policies
    • Guides and Brochures
  • News
    • RC Newsletters
    • Blog
  • About Us
    • Mission
    • Our History
    • Scholarships
    • Board and Staff
  • Bill Pay
  • Webmail
  • Get Fiber
  • Speed Test
  • Remote Support
TNICS