BLEEP BLOOP: I just saw an aircraft with callsign #UAL1801 (ICAO code #AC64CF) flying at 291 kt at altitude 7525 feet MSL at coordinates 34.2071,-118.4578.

That plane was making good time.

https://globe.adsbexchange.com/?icao=ac64cf
https://www.openstreetmap.org/?mlat=34.2071&mlon=-118.4578#map=15/34.2071/-118.4578