Robtex

Up: 52.222.159.0/25
Can't show all results, try to descend to a more specific CIDR
Down left: 52.222.159.64/27
Down right: 52.222.159.96/27
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
52.222.159.85	PTR	server-52-222-159-85.fra53.r.cloudfront.net
52.222.159.85	A	exabytes.slack.com
52.222.159.85	A	android-hbp4465.slack.com
52.222.159.117	A+PTR	server-52-222-159-117.fra53.r.cloudfront.net