What are the tail numbers of some of the many privately owned airliners? I’ll post some of the obvious ones, linking to those who can be tracked.
Gordon P. Getty
N311AG
John Travolta
http://flightaware.com/live/flight/N707JT
Donald Trump
flightaware.com/live/flight/VPBDJ
Roman Abramovich
http://flightaware.com/live/flight/P4MES