Business Broadband Provider. Cybersecurity Leader.

SDN Communications' network of more than 45,000 miles of fiber connects the area’s leading businesses. 
With a 91 percent customer satisfaction rating (a record high for the industry), SDN’s state-of-the-art telecommunications services also come with unparalleled customer service and support.

SDN is the biggest fiber-optic network in the region.
Find out how to harness the power of SDN's reliable network that stretches across the Midwest.

Recent SDN Blogs
SDN Internship Experience - More than just an intern
The two summer marketing interns, Kara and Lindsey, reflect on their time at SDN....
Read More
Hartford, to its credit, explores potential of 5G technology
Civic leaders in Hartford invited SDN executives to talk about small cell technology at an Aug. 16 meeting of the Hartford Area Development Foundation....
Read More
New Board president expects need for services to keep growing
Denny Law, the new president of the SDN Communications Board of Managers, expects challenges and opportunities in the telecom industry to keep unfolding rapidly in the future....
Read More
Single points of failure loom as big risk for the unprepared
Businesses increasingly rely on the tools of technology. Computerized and automated processes are common and valuable contributors in all kinds of commercial operations....
Read More