Anyone know what callsign MVX is?

[Geoff Leff]

Hi all,

The last few nights while up working on my website I've noticed in the wee early hours.. eg. midnight til around 3am an aircraft appearing with a callsign of MVX just flying around aimlessly (or so it appears). The ModeS is 7C3FCB.

Anyone know what it is? airframes.org doesn't show any data.

It doesn't seem to be destined for anywhere in particular as it just seems to come and go over a period of a couple of hours. Would this possibly be a military aircraft?

Any information would be great. It's got me intrigued. Plus I can add it to my database if I can find specifics.

Thanks
G