Robtex

Up: 52.85.64.0/23
Can't show all results, try to descend to a more specific CIDR
Down left: 52.85.64.0/25
Down right: 52.85.64.128/25
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
52.85.64.11	PTR	server-52-85-64-11.lhr5.r.cloudfront.net
52.85.64.11	A	onlinerocker.slack.com
52.85.64.11	A	greenveles.slack.com
52.85.64.48	A	baochain.slack.com
52.85.64.50	A+PTR	server-52-85-64-50.lhr5.r.cloudfront.net
52.85.64.52	A+PTR	server-52-85-64-52.lhr5.r.cloudfront.net
52.85.64.72	A+PTR	server-52-85-64-72.lhr5.r.cloudfront.net
52.85.64.72	A	fivestars-workspace.slack.com
52.85.64.72	A	primaplanet.slack.com
52.85.64.83	A+PTR	server-52-85-64-83.lhr5.r.cloudfront.net
52.85.64.83	A	wwtatc.slack.com
52.85.64.83	A	pelotoncycle.slack.com
52.85.64.95	A+PTR	server-52-85-64-95.lhr5.r.cloudfront.net
52.85.64.95	A	sequelize.slack.com
52.85.64.95	A	suffolkcounty-wci3201.slack.com
52.85.64.105	A+PTR	server-52-85-64-105.lhr5.r.cloudfront.net
52.85.64.115	A+PTR	server-52-85-64-115.lhr5.r.cloudfront.net
52.85.64.115	A	epicerieledetour.slack.com
52.85.64.115	A	trend-micro-brasil.slack.com
52.85.64.124	PTR	server-52-85-64-124.pmo50.r.cloudfront.net
52.85.64.124	A	mapovis.slack.com
52.85.64.124	A	idein-inc.slack.com
52.85.64.128	A+PTR	server-52-85-64-128.lhr5.r.cloudfront.net
52.85.64.128	A	d3jfoyu1e268yv.cloudfront.net
52.85.64.130	A+PTR	server-52-85-64-130.lhr5.r.cloudfront.net
52.85.64.130	A	globantseattle.slack.com
52.85.64.144	PTR	server-52-85-64-144.lhr5.r.cloudfront.net
52.85.64.151	A	evoliucionieriai.slack.com
52.85.64.151	A	infosecbpi.slack.com
52.85.64.151	A	intens-productief.slack.com
52.85.64.158	A+PTR	server-52-85-64-158.lhr5.r.cloudfront.net
52.85.64.162	A+PTR	server-52-85-64-162.lhr5.r.cloudfront.net
52.85.64.162	A	dmlzrp08y9ezs.cloudfront.net
52.85.64.163	A+PTR	server-52-85-64-163.lhr5.r.cloudfront.net
52.85.64.163	A	mndx.slack.com
52.85.64.165	A+PTR	server-52-85-64-165.lhr5.r.cloudfront.net
52.85.64.165	A	pcisworkspace.slack.com
52.85.64.165	A	value.slack.com
52.85.64.169	A+PTR	server-52-85-64-169.lhr5.r.cloudfront.net
52.85.64.169	A	ucla201811cyber5.slack.com
52.85.64.169	A	brn.slack.com
52.85.64.196	A+PTR	server-52-85-64-196.lhr5.r.cloudfront.net
52.85.64.198	PTR	server-52-85-64-198.lhr5.r.cloudfront.net
52.85.64.198	A	mnc-internal-splunk.slack.com
52.85.64.198	A	macnica-sift.slack.com
52.85.64.199	PTR	server-52-85-64-199.lhr5.r.cloudfront.net
52.85.64.199	A	24solutions.slack.com
52.85.64.199	A	aservo.slack.com
52.85.64.216	A+PTR	server-52-85-64-216.lhr5.r.cloudfront.net
52.85.64.225	A+PTR	server-52-85-64-225.lhr5.r.cloudfront.net
52.85.64.237	A+PTR	server-52-85-64-237.lhr5.r.cloudfront.net
52.85.64.237	A	repriseus.slack.com
52.85.64.244	A+PTR	server-52-85-64-244.lhr5.r.cloudfront.net
52.85.64.244	A	d2q82aua2c0486.cloudfront.net
52.85.64.254	A+PTR	server-52-85-64-254.lhr5.r.cloudfront.net
52.85.64.254	A	earnestresearch.slack.com