The first 43 flights all went to Mir; following Mir's re-entry, there have been about 18 flights to the International Space Station, and more are scheduled.
The first 43 flights all went to Mir; following Mir's re-entry, Progress was used as the resupply vehicle for the International Space Station. As of May 2008, there have been 29 Progress flights to the ISS and more are scheduled.