FYI: the previous pics are of a King Air 350 at Downtown Island owned by a UT booster. Nice paint scheme though.
UT's plane is a King Air 350 (N1794), the paint scheme is an extremely low-key silver and white based at TYS. The tail number is blocked, so it's not "trackable".
Donor/boosters contribute a large number of flight hours to the athletic department each year. There are upwards of 20 different tail-numbers that can/are regularly used and any combination of legs can be spread out amongst those tail-numbers if elusiveness is needed. Probably 90% of those are blocked- can't be tracked.