Robtex

Up: 213.230.48.0/21
Can't show all results, try to descend to a more specific CIDR
Down left: 213.230.52.0/23
Down right: 213.230.54.0/23

IP	Type	Hostname
213.230.52.76	A	r1.sn-oxu2a0n-b85l.googlevideo.com
213.230.52.76	A	r1---sn-oxu2a0n-b85l.googlevideo.com
213.230.52.77	A	r2---sn-oxu2a0n-b85l.googlevideo.com
213.230.52.78	A	r3---sn-oxu2a0n-b85l.googlevideo.com
213.230.52.209	A	scontent.fgva1-1.fna.fbcdn.net
213.230.52.210	A	video.fgva1-1.fna.fbcdn.net
213.230.52.224	A	instagram.fgva1-1.fna.fbcdn.net
213.230.54.109	A	mailgw03.jldcs.ch
213.230.54.110	A	mailgw02.jldcs.ch
213.230.54.114	A+PTR	mail.seicgland.ch
213.230.54.133	A	www.depth.fr
213.230.54.133	A	easysdi.org
213.230.54.155	A+PTR	ns1.depthch.com
213.230.54.156	A+PTR	ns3.depthch.com
213.230.54.219	A	ns3.bimatov.ru