I like to use FlightAware for flight tracking/status, however, I noticed they have a section for "Route"

For example, on flight CO35 (http://flightaware.com/live/flight/COA35), the Route is "SSM129055 TVC OBK J101 LIT J180"

What does each thing mean, it would be interesting to be able to decipher it for other flights... Thanks!