TYB
Kek, Texas ANG C-130, tail number 93-1459, call sign ROPER61, shooting landings at Carswell doing 640 knots. Yeah right. Military has been spoofing ADS-B big time lately.
Performance
Maximum speed: 320 kn (370 mph, 590 km/h) at 20,000 ft (6,100 m)
https://en.wikipedia.org/wiki/Lockheed_C-130_Hercules#Specifications_(C-130H)