24x7 Live Support

SDN Communications

Toll Free: 800-247-1442

Support: 877-287-8023

Technologies: 888-245-8080

Sioux Falls Office:
2900 W 10th Street
Sioux Falls, SD 57104

Rapid City Office:
1089 Rand Road
Rapid City, SD 57702
Ph: 605-341-2518

Have a Question?

At SDN, we are here to help.

Prefer to contact us by phone?

We offer 24x7 "live-answer" support for your questions. Our toll-free numbers are listed to the left.

Prefer to submit a question via email?

  • Request a quote

  • Receive support for your circuit

  • Contact an employee

  • Have a billing question

Simply fill out the form to the right and we will get back to you shortly.

Contact Us