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
Six more students from area schools begin internships at SDN
Six students from four postsecondary schools in the Sioux Falls area have joined the staff of SDN Communications, at least temporarily, and are contributing to the company’s succ...
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Board guides successful, 30-year evolution of SDN
Three decades of expanding services and market area have altered SDN Communications in a number of fundamental and obvious ways. One interesting, secondary change has been in how c...
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SDN experts pay it forward to train future telecom pros
Industry representatives who serve on the Information Systems Technology Curriculum Board help the school make sure that its technical curriculum is up to date and that faculty mem...
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Be careful - One, misplaced dig could cut lifesaving services
You won’t find any patients at Avera eCARE in northern Sioux Falls. There are doctors, nurses and other medical professionals who rely heavily on advanced telecommunications tech...
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