Harrison County Together we are making Harrison County futureproof. Home of Indiana's first state capital of Corydon. Communities We Serve Communities We Serve Benton County Brown County Blackford County Crawford County Posey County Floyd County Harrison County Warrick County Washington County With your community in mind Mainstream Fiber Networks provides fiber to home, business, and beyond. Mainstream Fiber Networks provides fiber to home, business, and beyond. We do not stop at the utility poles with our fiber, instead we deliver directly from the pole to wherever it may be needed. With Harrison County We are honored and excited to be able to help service Harrison County with reliable broadband access. Getting Connected If your neighborhood isn’t connected, be sure to join our list. Service might already be available in your area. To see your neighborhood is connected, check service availability here, check the map below, or call our office at (844) 752-6736. Stay Informed This allows you to stay informed on the status of the project and recent information about our services in your neighborhood. Committed Mainstream remains committed to the core of our mission; to bring affordable, reliable broadband into unserved or underserved areas. Contact Us Call our office at (844) 752-6736 ***Neighborhoods that have most interest are first to be considered for expansion.