Robtex

Up: 99.84.180.0/22
Can't show all results, try to descend to a more specific CIDR
Down left: 99.84.182.0/24
Down right: 99.84.183.0/24
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
99.84.182.168	A	ads-interfaces.sc-cdn.net
99.84.182.234	A	dp01e0e26epjj.cloudfront.net
99.84.183.138	A+PTR	server-99-84-183-138.iad89.r.cloudfront.net
99.84.183.165	PTR	server-99-84-183-165.iad89.r.cloudfront.net
99.84.183.165	A	omnistac.slack.com
99.84.183.165	A	firmsecurehq.slack.com
99.84.183.169	PTR	server-99-84-183-169.iad89.r.cloudfront.net
99.84.183.169	A	d3cy8tvxfdf8th.cloudfront.net