Robtex

Up: 13.33.48.0/24
Can't show all results, try to descend to a more specific CIDR
Down left: 13.33.48.128/26
Down right: 13.33.48.192/26
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
13.33.48.147	PTR	server-13-33-48-147.man50.r.cloudfront.net
13.33.48.147	A	boozters.slack.com
13.33.48.147	A	mrdamie.slack.com
13.33.48.149	PTR	server-13-33-48-149.man50.r.cloudfront.net
13.33.48.149	A	pytorch.slack.com
13.33.48.149	A	ucla201811cyber5.slack.com
13.33.48.150	A+PTR	server-13-33-48-150.man50.r.cloudfront.net
13.33.48.186	A+PTR	server-13-33-48-186.man50.r.cloudfront.net
13.33.48.217	A+PTR	server-13-33-48-217.phx50.r.cloudfront.net
13.33.48.217	A	d1i8fl1hn0n6ih.cloudfront.net