"Horry Telephone Cooperative (HTC) is America's largest telephone cooperative. The cooperative was incorporated on June 16, 1952 to serve the rural areas of Horry County, South Carolina where it was cost prohibitive for national telephone companies to provide service."@en . . . . . "Horry Telephone Cooperative"@en . "Horry Telephone Cooperative (HTC) is America's largest telephone cooperative. The cooperative was incorporated on June 16, 1952 to serve the rural areas of Horry County, South Carolina where it was cost prohibitive for national telephone companies to provide service."@en .