Ingo,
4407CD,OE-HUG,20547,Bombardier BD-100-1A10 Challenger 350,International Jet Management
5110BE,ES-SAK,888,Airbus A320-214,smartLynx Estonia/Corendon Air
Regarding 3A77DA I believe it will be found to be 204 E3TF miscoding as it should use 3B77DA. 203 has been noted using 3A77DB previously instead of its allocated 3B77DB but at this time it is all conjecture on my part as I have no confirmation.
Nothing on your others and the mil tac added.
Many thanks
Alan