Historical aircraft types

REG	type	ICAO
N991NN	B738	add793
N443AA	A21N	a555c3
N401AN	A21N	a4b065
N451AN	A21N	a575e0
N972NN	B738	ad8c4c
N907AA	A321	ac892e
N929AA	A321	acdf9a
N915US	A321	acab11
N901AA	A321	ac72e4