Flight Level Authority

Government officials.

32heads of state and government officials whose aircraft we track worldwide — from Putin's Il-96 and Xi's 747 to the French presidential A330, Gulf royal 747 BBJs, and US Cabinet secretaries. US Air Force flights change call sign the moment a principal boards — "Air Force Two" triggers the moment the VP steps aboard. Foreign government aircraft are tracked by tail number via ADS-B, broadcasting whenever they're airborne.