Planefag Cadet here

AF1 B742 Callsign: SAM41 (POTUS isn’t onboard)

Registration: 92-9000

USAF Boeing E-3B Sentry

Callsign: SNTRY99

Registration: 71-1407

ICAO: AE11D2

US Military UAV online

Callsign: UAVGH000

ICAO: AE541B