FiberLink, LLC owns about 2000 route miles of fiber. New Orleans to Jackson, MS to Memphis to Chicago to Omaha to Denver. FiberLink is offering strands of dark fiber and blank conduits along their routes. RAD-INFO, Inc. can help you acquire fiber.
AboveNet also offers lit fiber, dark fiber, and conduits. AboveNet will allow you to choose the fiber route for diversity. Call me at 800-779-0864, if you are looking for AboveNet or fiber in general.