Robtex

Up: 54.192.39.0/24
Can't show all results, try to descend to a more specific CIDR
Down left: 54.192.39.0/26
Down right: 54.192.39.64/26
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
54.192.39.12	PTR	server-54-192-39-12.iad89.r.cloudfront.net
54.192.39.12	A	d13rxepuu2fckz.jfk1.cloudfront.net
54.192.39.12	A	d1xhqdb624znw6.jfk1.cloudfront.net
54.192.39.15	A+PTR	server-54-192-39-15.jfk1.r.cloudfront.net
54.192.39.18	A+PTR	server-54-192-39-18.jfk1.r.cloudfront.net
54.192.39.18	A	d1xhqdb624znw6.jfk1.cloudfront.net
54.192.39.18	A	d16yl7ccqdzs81.jfk1.cloudfront.net
54.192.39.20	A+PTR	server-54-192-39-20.jfk1.r.cloudfront.net
54.192.39.20	A	d2uruws4kgxwiz.jfk1.cloudfront.net
54.192.39.47	A+PTR	server-54-192-39-47.iad89.r.cloudfront.net
54.192.39.47	A	server-54-192-39-47.jfk1.r.cloudfront.net
54.192.39.50	A+PTR	server-54-192-39-50.jfk1.r.cloudfront.net
54.192.39.57	A+PTR	server-54-192-39-57.jfk1.r.cloudfront.net
54.192.39.64	A+PTR	server-54-192-39-64.jfk1.r.cloudfront.net
54.192.39.64	A	d826fwxna0kgs.jfk1.cloudfront.net
54.192.39.64	A	d25vkn22auf1uj.cloudfront.net
54.192.39.69	A+PTR	server-54-192-39-69.jfk1.r.cloudfront.net
54.192.39.87	A+PTR	server-54-192-39-87.jfk1.r.cloudfront.net
54.192.39.91	A+PTR	server-54-192-39-91.jfk1.r.cloudfront.net
54.192.39.101	A+PTR	server-54-192-39-101.jfk1.r.cloudfront.net
54.192.39.102	A+PTR	server-54-192-39-102.jfk1.r.cloudfront.net
54.192.39.108	A+PTR	server-54-192-39-108.jfk1.r.cloudfront.net
54.192.39.110	PTR	server-54-192-39-110.jfk1.r.cloudfront.net
54.192.39.118	A+PTR	server-54-192-39-118.jfk1.r.cloudfront.net
54.192.39.122	A+PTR	server-54-192-39-122.jfk1.r.cloudfront.net
54.192.39.123	A+PTR	server-54-192-39-123.jfk1.r.cloudfront.net
54.192.39.123	A	flowaccount.com
54.192.39.125	A+PTR	server-54-192-39-125.jfk1.r.cloudfront.net
54.192.39.125	A	d1xhqdb624znw6.jfk1.cloudfront.net
54.192.39.125	A	d1g5jc0kppg15d.jfk1.cloudfront.net
54.192.39.127	A+PTR	server-54-192-39-127.jfk1.r.cloudfront.net