Robtex

Up: 52.222.188.0/23
Can't show all results, try to descend to a more specific CIDR
Down left: 52.222.189.0/25
Down right: 52.222.189.128/25
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
52.222.189.45	PTR	server-52-222-189-45.bom52.r.cloudfront.net
52.222.189.45	A	ncgfm.slack.com
52.222.189.45	A	pushtakim.slack.com
52.222.189.47	PTR	server-52-222-189-47.ham50.r.cloudfront.net
52.222.189.47	A	gmtsgq7.911.slack.com
52.222.189.47	A	joyfulinsurance.slack.com
52.222.189.59	A+PTR	server-52-222-189-59.bom52.r.cloudfront.net
52.222.189.70	A+PTR	server-52-222-189-70.bom52.r.cloudfront.net
52.222.189.119	PTR	server-52-222-189-119.ham50.r.cloudfront.net
52.222.189.119	A	server-52-222-189-119.bom52.r.cloudfront.net
52.222.189.119	A	elefe.slack.com
52.222.189.131	A	gwgnanodegrees.slack.com
52.222.189.141	A	www.globalcitizen.in
52.222.189.151	A+PTR	server-52-222-189-151.bom52.r.cloudfront.net
52.222.189.154	A+PTR	server-52-222-189-154.bom52.r.cloudfront.net
52.222.189.154	A	d1zka65uysdk6i.cloudfront.net
52.222.189.159	A+PTR	server-52-222-189-159.bom52.r.cloudfront.net
52.222.189.175	PTR	server-52-222-189-175.bom52.r.cloudfront.net
52.222.189.175	A	laalpatti.slack.com
52.222.189.175	A	bacardicu.slack.com
52.222.189.204	A+PTR	server-52-222-189-204.bom52.r.cloudfront.net
52.222.189.207	PTR	server-52-222-189-207.bom52.r.cloudfront.net
52.222.189.207	A	aonlyogt.slack.com
52.222.189.207	A	dits3.slack.com
52.222.189.250	A+PTR	server-52-222-189-250.bom52.r.cloudfront.net
52.222.189.250	A	cbmx-ao.slack.com