On a most recent hunt for connectivity options in our Gravitant Office, I have amassed a list of telco providers that offer fiber in Austin.  Hopefully this information would be of use for other folks in the Austin Area.

Alpheus – Fiber Schematic Map – Building List
Zayo – Google Maps Address Search
Level3 – Map Interface
Fiberlite – PDF Map
FPL FiberNet – Map Interface
TWTelcom – PDF Map