Robtex

Up: 52.222.220.0/24
Can't show all results, try to descend to a more specific CIDR
Down left: 52.222.220.0/26
Down right: 52.222.220.64/26
(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