T5 operates the 717 on the following routes:
One of my buds services this aircraft when it visits Tashkent.
An interesting sidenote, T5 doesn't seem to take passenger safety very seriously. On their 717s there is not a single safety card on board the aircraft for the use by passengers. Especially interesting, as T5 operates the aircraft to Tashkent, and under international aviation laws, is supposed to provide such material on their flights.
The 717s are owned by the airline, and were gotten for a very cheap price because of some deal done between Niyazov (who likes to style himself as Turkmenbashi) and the American government.