Robtex

Up: 52.222.220.0/22
Can't show all results, try to descend to a more specific CIDR
Down left: 52.222.220.0/24
Down right: 52.222.221.0/24
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
52.222.220.5	A+PTR	server-52-222-220-5.msp50.r.cloudfront.net
52.222.220.13	A+PTR	server-52-222-220-13.msp50.r.cloudfront.net
52.222.220.13	A	atonline.com
52.222.220.18	A+PTR	server-52-222-220-18.msp50.r.cloudfront.net
52.222.220.18	A	atonline.com
52.222.220.51	A+PTR	server-52-222-220-51.msp50.r.cloudfront.net
52.222.220.80	A	atonline.com
52.222.220.88	A	lean-agile.slack.com
52.222.220.88	A	ixor.slack.com
52.222.220.88	A	ferretticasa.slack.com
52.222.220.102	A	atonline.com
52.222.220.104	A+PTR	server-52-222-220-104.msp50.r.cloudfront.net
52.222.220.128	A+PTR	server-52-222-220-128.msp50.r.cloudfront.net
52.222.220.128	A	atonline.com
52.222.220.138	A	forortenshjaltar.slack.com
52.222.220.138	A	glasgowtigersafc.slack.com
52.222.220.138	A	specialsquad.slack.com
52.222.220.154	A+PTR	server-52-222-220-154.msp50.r.cloudfront.net
52.222.220.154	A	atonline.com
52.222.220.165	A+PTR	server-52-222-220-165.msp50.r.cloudfront.net
52.222.220.165	A	atonline.com
52.222.220.223	PTR	server-52-222-220-223.msp50.r.cloudfront.net
52.222.220.223	A	wcpo.site.scribblelive.com
52.222.220.227	A+PTR	server-52-222-220-227.msp50.r.cloudfront.net
52.222.220.239	A+PTR	server-52-222-220-239.msp50.r.cloudfront.net
52.222.220.239	A	atonline.com
52.222.220.252	A+PTR	server-52-222-220-252.msp50.r.cloudfront.net
52.222.220.254	A	wedding-photography.smugmug.com
52.222.221.168	PTR	server-52-222-221-168.msp50.r.cloudfront.net