If this has been addressed I didn’t see it and apoligize in advance.
From time to time I run across a flight for which the AC ID is obviously from another country (mostly Canada). I get curious as to what country that may be so I dug up a data page that lists the tail # codes that tell you what country the AC is registered in.
pilotfriend.com/aircraft%20p … ce/reg.htm
This page also provides some links to more detailed registration onfo for many countries world-wide.