BLEEP BLOOP: I just saw an aircraft with callsign #SWA2347 (ICAO code #A9E8F7) flying at 312 kt at altitude 6975 feet MSL at coordinates 34.2089,-118.4537.

They must have had a 50 knots tail wind.

https://globe.adsbexchange.com/?icao=a9e8f7
https://www.openstreetmap.org/?mlat=34.2089&mlon=-118.4537#map=15/34.2089/-118.4537