Niklas,
3F5397 tactical
502C85 unknown to me
503C71 callsign LLC3257, from mode-s forum, flight plan states filed as LY-AQV. LY-AQV became ES-LBD and used 503C59 when using that registration. Is this the original LY-AQV back but using a new hex or a new frame with a new hex and re-issued registration, time will tell.
Alan