Robtex

Up: 54.192.38.0/24
Can't show all results, try to descend to a more specific CIDR
Down left: 54.192.38.0/26
Down right: 54.192.38.64/26
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
54.192.38.12	A+PTR	server-54-192-38-12.jfk1.r.cloudfront.net
54.192.38.13	A+PTR	server-54-192-38-13.iad89.r.cloudfront.net
54.192.38.17	A+PTR	server-54-192-38-17.jfk1.r.cloudfront.net
54.192.38.19	PTR	server-54-192-38-19.jfk1.r.cloudfront.net
54.192.38.25	A+PTR	server-54-192-38-25.jfk1.r.cloudfront.net
54.192.38.28	PTR	server-54-192-38-28.iad89.r.cloudfront.net
54.192.38.28	A	server-54-192-38-28.jfk1.r.cloudfront.net
54.192.38.31	A+PTR	server-54-192-38-31.jfk1.r.cloudfront.net
54.192.38.35	PTR	server-54-192-38-35.jfk1.r.cloudfront.net
54.192.38.40	PTR	server-54-192-38-40.iad89.r.cloudfront.net
54.192.38.40	A	d17zn19own7yfp.jfk1.cloudfront.net
54.192.38.40	A	d21a97eopt54se.jfk1.cloudfront.net
54.192.38.41	A+PTR	server-54-192-38-41.jfk1.r.cloudfront.net
54.192.38.41	A	d2c8qyc3t7e20t.jfk1.cloudfront.net
54.192.38.41	A	repost.us
54.192.38.42	A+PTR	server-54-192-38-42.jfk1.r.cloudfront.net
54.192.38.42	A	d21kaftec3iq7.jfk1.cloudfront.net
54.192.38.42	A	d2yj640m7ujs5n.jfk1.cloudfront.net
54.192.38.43	A	djjn8uwbgp7ic.cloudfront.net
54.192.38.45	A+PTR	server-54-192-38-45.iad89.r.cloudfront.net
54.192.38.45	A	server-54-192-38-45.jfk1.r.cloudfront.net
54.192.38.45	A	d1xhqdb624znw6.jfk1.cloudfront.net
54.192.38.59	A+PTR	server-54-192-38-59.jfk1.r.cloudfront.net
54.192.38.59	A	df6qh6ukaijll.jfk1.cloudfront.net
54.192.38.59	A	d2zr3s0gvlhqle.jfk1.cloudfront.net
54.192.38.61	A+PTR	server-54-192-38-61.iad89.r.cloudfront.net
54.192.38.61	A	a26908033b5dfe9ea078981b18a046f1d.profile.jfk1.cloudfront.net
54.192.38.65	PTR	server-54-192-38-65.jfk1.r.cloudfront.net
54.192.38.65	A	d21a97eopt54se.jfk1.cloudfront.net
54.192.38.66	A+PTR	server-54-192-38-66.jfk1.r.cloudfront.net
54.192.38.66	A	df24x4vlscu6d.jfk1.cloudfront.net
54.192.38.67	A+PTR	server-54-192-38-67.iad89.r.cloudfront.net
54.192.38.71	A+PTR	server-54-192-38-71.jfk1.r.cloudfront.net
54.192.38.71	A	d1ibts9hn2apvm.jfk1.cloudfront.net
54.192.38.72	A+PTR	server-54-192-38-72.jfk1.r.cloudfront.net
54.192.38.74	A+PTR	server-54-192-38-74.jfk1.r.cloudfront.net
54.192.38.75	A+PTR	server-54-192-38-75.jfk1.r.cloudfront.net
54.192.38.83	A+PTR	server-54-192-38-83.jfk1.r.cloudfront.net