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

🇺🇸 N956XV - Airbus A321 253NSL - American Airlines AAL2672/AA2672, Denver (DEN) to Philadelphia (PHL) - 6.1 mi away @ 36200 ft, heading E at 629 mph. Spotted 2x before. [08:25:16 AM CST] #AD4D12 #N956XV #A21N #AMERICAN #AAL2672 #AA2672 #ADSB #ADSBbot