Robtex

Up: 216.131.72.0/22
Can't show all results, try to descend to a more specific CIDR
Down left: 216.131.74.0/24
Down right: 216.131.75.0/24
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
216.131.74.0	PTR	0.74.131.216.client.static.strong-sf14.reliablehosting.com
216.131.74.17	PTR	17.74.131.216.x.reliablehosting.com
216.131.74.98	PTR	98.74.131.216.x.reliablehosting.com
216.131.74.153	PTR	153.74.131.216.client.static.strong14.reliablehosting.com
216.131.75.3	PTR	3.75.131.216.srv.gt81.reliablehosting.com
216.131.75.3	A	arabsextube4u.com
216.131.75.7	PTR	7.75.131.216.srv.gt81.reliablehosting.com
216.131.75.8	PTR	8.75.131.216.srv.gt81.reliablehosting.com
216.131.75.9	PTR	9.75.131.216.srv.gt81.reliablehosting.com
216.131.75.10	PTR	10.75.131.216.unassigned.reliablehosting.com
216.131.75.10	A	desixxxvideos.net
216.131.75.14	PTR	14.75.131.216.x.reliablehosting.com
216.131.75.14	A	indianfreesextube.com
216.131.75.17	PTR	17.75.131.216.shared.ex14.reliablehosting.com
216.131.75.20	PTR	20.75.131.216.shared.ex14.reliablehosting.com
216.131.75.20	A	egyptbeauty.com
216.131.75.20	A	www.egyptbeauty.com
216.131.75.29	PTR	29.75.131.216.shared.ex14.reliablehosting.com
216.131.75.64	PTR	64.75.131.216.x.reliablehosting.com
216.131.75.89	PTR	89.75.131.216.srv.ds110.reliablehosting.com
216.131.75.89	A	seriousmistresses.com
216.131.75.89	A	123database.com
216.131.75.90	PTR	90.75.131.216.srv.ds110.reliablehosting.com
216.131.75.90	A	prescottecosphere.com
216.131.75.90	A	prescotthamilton.com
216.131.75.92	PTR	92.75.131.216.srv.ds110.reliablehosting.com
216.131.75.92	A	geohost.net
216.131.75.92	A	www.geohost.net
216.131.75.93	PTR	93.75.131.216.srv.ds110.reliablehosting.com
216.131.75.93	A	cabnet.co.uk
216.131.75.162	PTR	162.75.131.216.srv.wn44.reliablehosting.com
216.131.75.162	A	escorts.naughtynightlife.com
216.131.75.165	PTR	165.75.131.216.srv.wn44.reliablehosting.com
216.131.75.165	A	stripclubs.naughtynightlife.com
216.131.75.171	PTR	171.75.131.216.srv.wn44.reliablehosting.com
216.131.75.171	A	gentlemansclubguide.com
216.131.75.171	A	www.gentlemansclubguide.com
216.131.75.230	PTR	230.75.131.216.client.dyn.strong-sf21.reliablehosting.com