4810F2 a possible drone?

[Faramir]

Received this code on the evening of december 10th.
Worked together with some helicopters during excersizes. None of the sources that normally can identify codes has any information at all about this code. Does somebody recognize this code? Could it be a drone? I don't know if any algorithm exist for dutch mode-s codes so proved a dead end as well. Any info is welcome!