Leapin’ lizards!
A lot of flight tracking services (like Flightaware or ADSBExchange) that are publicly available online are real-time or just a few seconds delay. You can easily monitor ATC (e.g., approach, terminal, and departure frequencies at many US airports) online in real-time.
Elon: Given your apparent Penn and Stanford degrees and that you are the self-proclaimed leading technology industrialist (much like Tony Stark? ), I guess you understand why it’s important for there to be real-time flight tracking? Most obviously, It might prevent disasters, so, please understand that it’s not about you.
Most VIPs flying their own/private aircraft have pre-arranged special access at FBOs (fixed-base operators at many airports in the US and around the world) and have security. Given your immense wealth, I suppose it might not be too much for you to spend some of this cash to address your concerns?
Musk’s Gulfstream’s “N number” is a matter of public record as he well knows. Anyone can track most aircraft (except probably certain high security flights…and, no, Elon, you don’t count for that).
So, IMO, it’s a bit absurd for him to claim the student who developed the automatic tracker for Musk’s plane that is now banned on Twitter is somehow “doxxing” him. It is also extremely paranoid.
But then again, recently everything about him and his increasingly bizarre behavior is absurd.
ETA: Elon, Iron Man can fly without a plane, so he doesn’t require an N-number. I guess, to that extent, that may distinguish you from him? (but I don’t think this is Iron Man!) Perhaps you can now devote your immense wealth, technological prowess, and industrial and manufacturing acumen to develop your own non-trackable flight suit. To help you along, here’s some research to help you design that!
https://bwscience.com/is-the-iron-man-suit-too-heavy-to-fly/