Robtex

Up: 198.91.80.0/23
Can't show all results, try to descend to a more specific CIDR
Down left: 198.91.80.0/25
Down right: 198.91.80.128/25
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
198.91.80.1	PTR	x10hosting.com
198.91.80.1	A	80.91.198.in-addr.arpa
198.91.80.2	PTR	ns1.x10hosting.com
198.91.80.2	A	kontractironmongery.com
198.91.80.2	A	cdanup.com
198.91.80.3	PTR	s2.infinitysrv.com
198.91.80.3	A	candidcandles.co.uk
198.91.80.3	A	thisisdanij.com
198.91.80.4	PTR	s3.infinitysrv.com
198.91.80.4	A	*.japan.cognizanceun.x10.mx
198.91.80.4	A	*.htmlwww.askbeauteous.x10.mx
198.91.80.5	A	mail.x10hosting.com
198.91.80.7	A	s102-easilyadvert.pcriot.com
198.91.80.7	A	build-transportdouane.pcriot.com
198.91.80.7	A	coolbreeze.x10.mx
198.91.80.15	A	mail.x10systems.com
198.91.80.22	PTR	x10hosting.com
198.91.80.25	A	*.japan.cognizanceun.x10.mx
198.91.80.25	A	*.htmlwww.askbeauteous.x10.mx
198.91.80.25	A	*.6461796c6967687477696e64796a616e6540686f746d616message.notablebonni.pcriot.com
198.91.80.101	A	smtp01.x10labs.com
198.91.80.103	A+PTR	rns1.x10systems.com
198.91.80.103	A	ns1-rdns.x10systems.com
198.91.80.103	A	ns2-rdns.x10systems.com
198.91.80.106	PTR	ca.x10systems.com
198.91.80.106	A	en.bestowalware.x10.mx
198.91.80.106	A	*.blog.principal.x10.mx
198.91.80.114	A	vpsmon.com
198.91.80.120	A	static.x10systems.com
198.91.80.128	A	nullmx.bbeod.com
198.91.80.128	A	ns1.x10systems.com
198.91.80.149	A	theta.x10systems.com
198.91.80.160	A	clockworkcomputers.com
198.91.80.160	A	x10gaming.com
198.91.80.160	A	coreyarbogast.me
198.91.80.235	A	ns1.x10hosting.com
198.91.80.235	A	ns1.x10premium.com
198.91.80.249	A	mail01.infinitysrv.com
198.91.80.249	A	mx01.infinitysrv.com
198.91.80.250	PTR	edge.infinitysrv.com
198.91.80.250	A	mx02.infinitysrv.com
198.91.80.251	A+PTR	edge.x10hosting.com