BLEEP BLOOP: I just saw an aircraft with callsign #ASA1301 (ICAO code #A4B7D7) flying at 310 kt at altitude 8900 feet MSL at coordinates 34.1724,-118.6491.

That's, like, super fast.

https://globe.adsbexchange.com/?icao=a4b7d7
https://www.openstreetmap.org/?mlat=34.1724&mlon=-118.6491#map=15/34.1724/-118.6491