Dark Fiber
A Dark Fiber service is a large bandwidth connection providing high-speed Internet or data service delivered over fiber optic lines that are not lit. Dark Fiber is used by businesses that are engaged in telecommunications, wholesale Internet access, or wholesale ISP services to provide the bandwidth capacity needed for customer applications including email, file sharing, web hosting, data backup, video, VOIP, or VPN access. Dark Fiber providers lease the fiber optic lines and the customer provides equipment needed to light fiber. Dark Fiber is also known as Unlit Fiber.