Some kind of EU top ongoing here, perhaps related to the situation with Belarus? Lots of (mainly eastern European) VIP and cargo planes inbound yesterday and today (ADS-B)..
Visiting here today is C-37B 20-1941. Routing Andrews - Dubrovnik (overnight) - Gibraltar (scheduled stop, but it did not land) - Lisbon. Leaving tomorrow for Prestwick.
It showed up on all radars as an unknown, hexcode AE6CF1. I guess that's a hexcode update then, for those who like to keep track of that...