SDN Communications



SDN Communications
2900 W 10th Street
Sioux Falls 57022
Phone: 605-978-2235

SDN is the Northern Plains premier business-to-business broadband provider and cyber-security leader. The Sioux Falls, SD based company's 45,000-mile fiber optic network reaches into eight states. Businesses with multiple locations, such as hospitals, banks, schools and government agencies use SDN for Wide Area Networking, internet, and managed services (routers, firewalls, and Distributed Denial of Service Protection). SDN's network is made up of its 17 South Dakota owner companies and one Iowa and six Minnesota members.