Robtex

Up: 54.192.39.128/25
Can't show all results, try to descend to a more specific CIDR
Down left: 54.192.39.192/27
Down right: 54.192.39.224/27
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
54.192.39.209	A+PTR	server-54-192-39-209.jfk1.r.cloudfront.net
54.192.39.213	A+PTR	server-54-192-39-213.jfk1.r.cloudfront.net
54.192.39.218	PTR	server-54-192-39-218.iad89.r.cloudfront.net
54.192.39.218	A	server-54-192-39-218.jfk1.r.cloudfront.net
54.192.39.221	A+PTR	server-54-192-39-221.jfk1.r.cloudfront.net
54.192.39.221	A	h-img3.cloudbeds.com
54.192.39.233	PTR	server-54-192-39-233.iad89.r.cloudfront.net
54.192.39.233	A	dowh7e4ptqb7y.jfk1.cloudfront.net
54.192.39.233	A	touchtype-fluency.com
54.192.39.234	A+PTR	server-54-192-39-234.jfk1.r.cloudfront.net