Dakota Carrier Network operates a 100 percent fiber optic communications network linking all regions of the state. The 1,460 mile long, fiber optic facility is part of the existing In dependent Local Telephone Company networks.

A Synchronous Optical Network (SONET) ring is used fro the basic network design. DCN operates multiple SONET-based rings which provide this high capacity service. The transmission network is entirely high-quality optical fiber. Nortel OC-48 SONET equipment operating at 2.488 Gbps is used on the backbone network. A protection channel is provided with each system to guarantee the highest quality service.
 
Click here to view printable version of the DCN map.