Robtex

Up: 52.84.224.0/23
Can't show all results, try to descend to a more specific CIDR
Down left: 52.84.224.0/25
Down right: 52.84.224.128/25
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
52.84.224.3	PTR	server-52-84-224-3.sin2.r.cloudfront.net
52.84.224.27	A+PTR	server-52-84-224-27.sin2.r.cloudfront.net
52.84.224.38	PTR	server-52-84-224-38.sin2.r.cloudfront.net
52.84.224.38	A	d3ns5h64n85id1.cloudfront.net
52.84.224.73	A+PTR	server-52-84-224-73.sin2.r.cloudfront.net
52.84.224.75	A+PTR	server-52-84-224-75.sin2.r.cloudfront.net
52.84.224.75	A	doc0x7y02yp6c.cloudfront.net
52.84.224.81	A+PTR	server-52-84-224-81.sin2.r.cloudfront.net
52.84.224.81	A	ahtapotgonulluleri.slack.com
52.84.224.81	A	upstreamhq.slack.com
52.84.224.82	PTR	server-52-84-224-82.sin2.r.cloudfront.net
52.84.224.85	A+PTR	server-52-84-224-85.sin2.r.cloudfront.net
52.84.224.85	A	rm-content.s3-accelerate.amazonaws.com
52.84.224.97	PTR	server-52-84-224-97.sin2.r.cloudfront.net
52.84.224.103	A+PTR	server-52-84-224-103.sin2.r.cloudfront.net
52.84.224.126	A+PTR	server-52-84-224-126.sin2.r.cloudfront.net
52.84.224.126	A	d1wo6eiig4zlbd.cloudfront.net
52.84.224.139	A+PTR	server-52-84-224-139.sin2.r.cloudfront.net
52.84.224.139	A	d2od0tibocfrhb.cloudfront.net
52.84.224.184	A+PTR	server-52-84-224-184.sin2.r.cloudfront.net
52.84.224.185	A+PTR	server-52-84-224-185.sin2.r.cloudfront.net
52.84.224.197	A+PTR	server-52-84-224-197.sin2.r.cloudfront.net
52.84.224.197	A	static-dual.karte.io
52.84.224.218	A+PTR	server-52-84-224-218.sin2.r.cloudfront.net
52.84.224.249	PTR	server-52-84-224-249.sin2.r.cloudfront.net