Yes, 11 airframes. An article in 2021 suggests that they may be upgraded or alternatively replaced, as they have suffered from a lack of spares.
Poland and Bulgaria are the only two operators that have been previous RIAT participants. Bulgaria are operating a fleet of around 4 airframes. Poland appears to have a much larger fleet of around 25, but is negotiating with the US for a Western replacement.
It could easily be the last opportunity to see one airborne in the UK.
Edit: Plus India and Pakistan, but that would be a long shot!!