Robtex

Up: 52.84.219.128/25
Can't show all results, try to descend to a more specific CIDR
Down left: 52.84.219.192/27
Down right: 52.84.219.224/27
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
52.84.219.195	PTR	server-52-84-219-195.fco50.r.cloudfront.net
52.84.219.195	A	cryptocatz.slack.com
52.84.219.195	A	bigbiglittle.slack.com
52.84.219.196	A+PTR	server-52-84-219-196.sin3.r.cloudfront.net
52.84.219.196	A	d1lndjog12i23s.cloudfront.net
52.84.219.198	PTR	server-52-84-219-198.sin3.r.cloudfront.net
52.84.219.198	A	codercampstroops.slack.com
52.84.219.198	A	restbyte.slack.com
52.84.219.200	A	capds.slack.com
52.84.219.200	A	dechert.slack.com
52.84.219.200	A	bcnofficial.slack.com
52.84.219.202	PTR	server-52-84-219-202.sin3.r.cloudfront.net
52.84.219.202	A	crain-digital.slack.com
52.84.219.202	A	folio-project.slack.com
52.84.219.209	PTR	server-52-84-219-209.sin3.r.cloudfront.net
52.84.219.209	A	obedis.slack.com
52.84.219.209	A	sberobotics.slack.com
52.84.219.214	A+PTR	server-52-84-219-214.sin3.r.cloudfront.net
52.84.219.214	A	d1enlf36kyc9xc.cloudfront.net
52.84.219.219	PTR	server-52-84-219-219.sin3.r.cloudfront.net
52.84.219.219	A	console.slack.com
52.84.219.219	A	purealt.slack.com
52.84.219.221	A+PTR	server-52-84-219-221.sin3.r.cloudfront.net
52.84.219.221	A	d1q9exczoajzpl.cloudfront.net
52.84.219.223	A+PTR	server-52-84-219-223.sin3.r.cloudfront.net
52.84.219.223	A	words.sparxcdn.net
52.84.219.223	A	d38au5kn48shwv.cloudfront.net
52.84.219.224	PTR	server-52-84-219-224.sin3.r.cloudfront.net
52.84.219.224	A	gigster.slack.com
52.84.219.224	A	elite-texture.slack.com
52.84.219.226	PTR	server-52-84-219-226.fco50.r.cloudfront.net
52.84.219.226	A	server-52-84-219-226.sin3.r.cloudfront.net
52.84.219.226	A	lassocrm.slack.com
52.84.219.228	A+PTR	server-52-84-219-228.sin3.r.cloudfront.net
52.84.219.228	A	d14bzsidtekw9w.cloudfront.net
52.84.219.232	PTR	server-52-84-219-232.sin3.r.cloudfront.net
52.84.219.232	A	skplanet-openapi.slack.com
52.84.219.232	A	sktx-golang.slack.com
52.84.219.233	PTR	server-52-84-219-233.sin3.r.cloudfront.net
52.84.219.233	A	ecozema.slack.com
52.84.219.233	A	stackoverflowhub.slack.com
52.84.219.234	PTR	server-52-84-219-234.sin3.r.cloudfront.net
52.84.219.234	A	partis.slack.com
52.84.219.234	A	livebela.slack.com
52.84.219.235	A+PTR	server-52-84-219-235.sin3.r.cloudfront.net
52.84.219.235	A	d1ikyqty5t0kpr.cloudfront.net
52.84.219.237	PTR	server-52-84-219-237.fco50.r.cloudfront.net
52.84.219.237	A	scaphold.slack.com
52.84.219.237	A	moitsd-dnr.slack.com
52.84.219.240	A+PTR	server-52-84-219-240.sin3.r.cloudfront.net
52.84.219.240	A	d1458vjmbiz2zp.cloudfront.net
52.84.219.241	A+PTR	server-52-84-219-241.sin3.r.cloudfront.net
52.84.219.241	A	d1288oy1lr38yq.cloudfront.net
52.84.219.247	A+PTR	server-52-84-219-247.sin3.r.cloudfront.net
52.84.219.249	A	cache3.undercovertourist.com
52.84.219.250	A+PTR	server-52-84-219-250.sin3.r.cloudfront.net
52.84.219.251	A+PTR	server-52-84-219-251.sin3.r.cloudfront.net
52.84.219.251	A	d1c4vv94zemhx3.cloudfront.net
52.84.219.252	A	platformatslack.slack.com
52.84.219.252	A	ebiz-epoteam.slack.com
52.84.219.252	A	chs-world.slack.com