I should take the info on the "Mars" site with a pinch of (sea) salt.
I sold my boat "Aries II" (call sign MKQB6) last July, yet it still shows me as the owner, in spite of my notifying the Radio Communications Agency (or whatever it is now called) that I had sold it and giving details of the new owner.
I even contacted the agency by phone to protest about this some three months later, but ... I am STILL shown on the Mars site!
Regards,
Chris.