Map of the St. Louis area showing the position and track of the aircraft described in the post.

🇺🇸 N219NN - Embraer EMB-175 LR - American Eagle ENY3510/MQ3510, John Glenn Columbus (CMH) to Dallas-Fort Worth (DFW) - 3.5 mi away @ 28025 ft, heading WSW at 431 mph. Spotted 23x before! [07:10:42 AM CST] #A1DC2A #N219NN #E75L #ENVOY #ENY3510 #MQ3510 #autopilot #ADSB #ADSBbot