Robtex

Up: 31.131.80.0/20
Can't show all results, try to descend to a more specific CIDR
Down left: 31.131.88.0/22
Down right: 31.131.92.0/22
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
31.131.88.2	A+PTR	ns1.skandinetworks.com
31.131.88.2	A	skandinetworks.com
31.131.88.23	A+PTR	wdiscussion.com
31.131.88.23	A	commandard.com
31.131.88.23	A	mail.commandard.com
31.131.88.25	A+PTR	paratanjuez.com
31.131.88.25	A	mail.paratanjuez.com
31.131.88.31	A+PTR	tjjianlian.com
31.131.88.31	A	mail.tjjianlian.com
31.131.88.37	A+PTR	nha1.nhamna.com
31.131.88.37	A	mail.3dmeditation.com
31.131.88.37	A	3dmeditation.com
31.131.88.39	A+PTR	appskr.com
31.131.88.43	A+PTR	hdavi.com
31.131.88.43	A	mail.hdavi.com
31.131.88.48	PTR	trustednetgroup.com
31.131.88.48	A	mail.trustednetgroup.com
31.131.88.49	A+PTR	ocszone.com
31.131.88.49	A	mail.ocszone.com
31.131.88.56	A+PTR	kd371.com
31.131.88.56	A	mail.kd371.com
31.131.88.63	A+PTR	toptiersolution.com
31.131.88.63	A	mail.toptiersolution.com
31.131.88.67	A	newiter.com
31.131.88.70	A+PTR	scwall.com
31.131.88.70	A	mail.scwall.com
31.131.88.74	PTR	31-131-88-74.skandinetworks.com
31.131.88.74	A	cmsform.com
31.131.88.74	A	mail.cmsform.com
31.131.88.79	A+PTR	gloriascatering.com
31.131.88.79	A	mail.gloriascatering.com
31.131.88.188	A+PTR	danengland.com
31.131.88.188	A	mail.danengland.com
31.131.88.191	A+PTR	dailysportpicks.com
31.131.88.193	A+PTR	wilminal.com
31.131.88.193	A	mail.viennesoter.com
31.131.88.193	A	mail.wilminal.com
31.131.88.194	PTR	michaeology.com
31.131.88.196	PTR	commensively.com
31.131.89.8	A+PTR	barnsleyhealth.com
31.131.89.31	A+PTR	topvipcasinos.com
31.131.89.31	A	mail.topvipcasinos.com
31.131.89.32	A+PTR	karsciftligi.com
31.131.89.32	A	mail.karsciftligi.com
31.131.89.40	A+PTR	toshirts.com
31.131.89.40	A	mail.toshirts.com
31.131.89.42	PTR	dailysmm.com
31.131.89.42	A	xilitol.com
31.131.89.42	A	mail.xilitol.com
31.131.89.62	A+PTR	gastrofactory.com
31.131.89.62	A	mail.gastrofactory.com
31.131.90.2	A+PTR	mail.skandinetworks.com
31.131.90.3	PTR	nido0.marvelnido.com
31.131.90.3	A	mail.advancesweater.com
31.131.90.3	A	advancesweater.com
31.131.90.30	A+PTR	tronov.com
31.131.90.30	A	mail.tronov.com
31.131.90.39	A+PTR	nuocdn.com
31.131.90.39	A	mail.nuocdn.com
31.131.90.60	A+PTR	draudience.com
31.131.90.60	A	mail.draudience.com
31.131.90.66	A+PTR	pdfmagaz.com
31.131.90.66	A	mail.pdfmagaz.com
31.131.90.109	A+PTR	billbestwick.com
31.131.90.109	A	mail.billbestwick.com
31.131.90.133	A+PTR	dzmails.com
31.131.90.133	A	mail.dzmails.com
31.131.90.173	A+PTR	digghappy.com
31.131.90.173	A	mail.digghappy.com
31.131.90.209	A+PTR	bizappends.com
31.131.90.209	A	mail.bizappends.com
31.131.91.3	A+PTR	dichvuthucung.com
31.131.91.3	A	mail.dichvuthucung.com
31.131.91.13	A+PTR	alliedarmory.com
31.131.91.95	A+PTR	kaanyurttas.com
31.131.91.95	A	mail.kaanyurttas.com
31.131.91.105	PTR	freenet01.com
31.131.91.105	A	mail.freenet01.com
31.131.91.115	A+PTR	obcclt.com
31.131.91.115	A	mail.obcclt.com
31.131.91.145	A+PTR	susanbride.com
31.131.91.145	A	mail.susanbride.com
31.131.91.175	A+PTR	vsunion.com
31.131.91.175	A	mail.vsunion.com