We Are The Experts
SDN Communications business building and sign

SDN Communications is the premier business-to-business fiber internet service provider in South Dakota and southwestern Minnesota.

Established in 1989, the organization has more than 30 years of experience and 115 employees to provide quality service, create new and innovative services and return value to our member companies and customers - it's why we exist.

We're passionate about customer service and bringing a human touch to technology.

SDN’s main offices are part of a two-building campus in Sioux Falls along West 10th Street. Employees also work out of the data center located just northwest of town along Interstate 90 and an office in Rapid City.

Today, the network is made up of more than 50,000 miles of fiber in eight states, including South Dakota, North Dakota, Nebraska, Minnesota, Iowa, Montana, Wyoming, and Colorado.