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

🇺🇸 N435AN - Airbus A321 253NXSL - American Airlines AAL1640/AA1640, Phoenix Sky Harbor (PHX) to Ronald Reagan Washington Ntl (DCA) - 4.2 mi away @ 34850 ft, heading E at 653 mph. Spotted 15x before! [04:16:12 AM CST] #A535BE #N435AN #A21N #AMERICAN #AAL1640 #AA1640 #ADSB #ADSBbot