Robtex

Up: 38.101.174.0/23
Can't show all results, try to descend to a more specific CIDR
Down left: 38.101.175.0/25
Down right: 38.101.175.128/25
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
38.101.175.27	PTR	av.spirit.com
38.101.175.35	A+PTR	ra.spiritair.com
38.101.175.35	A+PTR	rsa.spiritair.com
38.101.175.37	A+PTR	store.spiritair.com
38.101.175.38	PTR	reservationrewards
38.101.175.38	A+PTR	reservationrewards.spiritair.com
38.101.175.39	PTR	www
38.101.175.45	PTR	spiritair.com
38.101.175.45	PTR	spiritairline.com
38.101.175.45	PTR	spiritairlines.com
38.101.175.46	PTR	ess
38.101.175.46	A+PTR	ess.spiritair.com
38.101.175.47	A+PTR	help.spiritair.com
38.101.175.49	A+PTR	abc.spiritair.com
38.101.175.62	A+PTR	staging.spiritair.com
38.101.175.62	A	staging.spirit.com