Dark fiber / transport in Virginia

All, I am interested in finding out about dark fiber / transport resources along I-81 or I-64 in the western part of Virginia. I’d like to find a transport provider that could connect to a “meet me” room in either Roanoke, Charlottesville, Richmond, DC, or even Charleston, WV. I’m trying to price out alternatives to the telco transport and data delivery model and I’m new to the Virginia market. Thanks for any help that you can offer! -Mike