Robtex

Up: 216.52.80.0/20
Can't show all results, try to descend to a more specific CIDR
Down left: 216.52.80.0/22
Down right: 216.52.84.0/22
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
216.52.81.7	A	ns2.marketviewthunder.com
216.52.81.7	A	ns2.gvsi.com
216.52.81.7	A	ns2.launchmarketview.com
216.52.81.8	A	houwip.marketview.com
216.52.81.8	A	houwip.gvsi.com
216.52.81.9	A	houlb.gvsi.com
216.52.81.9	A	houwip2.gvsi.com
216.52.81.35	PTR	webext03.gvsi.com
216.52.81.35	PTR	webext04.gvsi.com
216.52.81.35	A+PTR	test1.gvsi.net
216.52.81.76	A	lyncdiscover.gvsi.com
216.52.81.95	A	mvmts6.gvsi.com
216.52.81.95	A	mvmts6.wip.gvsi.com
216.52.81.96	A+PTR	query8.gvsi.com
216.52.81.96	A+PTR	query7.gvsi.com
216.52.81.96	A+PTR	query5.gvsi.com
216.52.81.131	A	mail.blackelkenergy.com
216.52.81.200	PTR	brandt.peopledata.com
216.52.81.200	A	mail.stopzabasearch.com
216.52.81.200	A	mail.zabascam.org
216.52.81.202	PTR	rollergirl.peopledata.com
216.52.81.211	PTR	zabasearch.com
216.52.81.211	A	zabavote.net
216.52.81.211	A	zabaline.org
216.52.81.212	PTR	peopledata.com
216.52.82.181	A	mail2.emedicalsystems.com
216.52.82.228	A	us-onesignservice.com
216.52.82.228	A	usonesignservice.com
216.52.82.228	A	signserviceone.com
216.52.82.239	A	mail.thegreenelectricity.com
216.52.82.239	A	windenergyproducts.com
216.52.82.239	A	reliantenergyservices.com
216.52.82.241	A	newyouexpohouston.com
216.52.82.243	A	sutliffstoutlaw.net
216.52.82.243	A	sutliffstout.org
216.52.82.250	PTR	mail.constantoffice.com
216.52.82.250	A	mail.horizon-advisors.com
216.52.82.250	A	mail.montierraminerals.com
216.52.83.18	A+PTR	hdcvcl02-041.mdsol.com
216.52.83.19	A	hdcvcl02-042.mdsol.com
216.52.83.20	A	hdcvcl02-043.mdsol.com
216.52.83.30	A	hdcvcl02-010.mdsol.com
216.52.83.31	A	hdcvcl02-009.mdsol.com
216.52.83.32	A	hdcvcl02-008.mdsol.com
216.52.83.39	A	insights.mdsol.com
216.52.83.52	A	hdcprboxi001.mdsol.com
216.52.83.53	A	hdcprjrweb001.mdsol.com
216.52.83.54	A	hdcprjrssl001.mdsol.com
216.52.83.59	A	foldrx.mdsol.com
216.52.83.65	A	hdcastvbowebd01.mdsol.com
216.52.83.85	A	hdcvcl03-105.mdsol.com
216.52.83.89	A	hdcastboxi01.mdsol.com
216.52.83.98	A	parexel.mdsol.com
216.52.83.98	A	hdcvcl03-011.mdsol.com
216.52.83.128	A	hdcvcl05-003.mdsol.com
216.52.83.129	A	hdcvcl05-004.mdsol.com
216.52.83.130	A	hdcvcl05-005.mdsol.com
216.52.83.131	A	hdcvcl05-006.mdsol.com
216.52.83.138	A	hdcvcl05-013.mdsol.com
216.52.83.139	A	hdcvcl05-014.mdsol.com
216.52.83.141	A	quintiles.mdsol.com
216.52.83.141	A	hdcvcl05-016.mdsol.com
216.52.83.144	A	hdcvcl05-019.mdsol.com
216.52.83.151	A	hdcvcl05-026.mdsol.com
216.52.83.152	A	hdcvcl05-027.mdsol.com
216.52.83.153	A	hdcvcl05-028.mdsol.com
216.52.83.155	A	hdcvcl05-030.mdsol.com
216.52.83.156	A	hdcvcl05-031.mdsol.com
216.52.83.161	A	hdcvcl05-036.mdsol.com
216.52.83.162	A	hdcvcl05-037.mdsol.com
216.52.83.164	A	hdcvcl05-039.mdsol.com
216.52.83.169	A	hdcvcl05-044.mdsol.com
216.52.83.170	A	safety3.mdsol.com
216.52.83.171	A	safety3-mapping.mdsol.com
216.52.83.173	A	hdcvcl05-046.mdsol.com
216.52.83.178	A	hdcvcl05-051.mdsol.com
216.52.83.209	A	raveconlabreporting.mdsol.com
216.52.83.210	A	jreview91conlabweb1.mdsol.com
216.52.83.211	A	jreview91conlabssl1.mdsol.com
216.52.83.212	A	boxiconlabweb1.mdsol.com
216.52.83.216	A	dteconlabweb1.mdsol.com
216.52.83.217	A	raveconlabreporting2.mdsol.com
216.52.83.220	A	rave564conlabtesting1.mdsol.com
216.52.83.221	A	rave564conlabtesting2.mdsol.com
216.52.83.225	A	conlabspotfire.mdsol.com
216.52.83.226	A	conlabspotfirereg.mdsol.com
216.52.83.233	A+PTR	rave563conlabtesting4.mdsol.com
216.52.83.241	A	rave563conlabtesting6.mdsol.com
216.52.83.242	A	rave563conlabtesting7.mdsol.com
216.52.83.243	A	rave563conlabtesting8.mdsol.com
216.52.83.249	A	conlabtagging1.mdsol.com
216.52.84.70	A	cactuswellhead.com
216.52.84.70	A	trueturnmachine.com
216.52.84.70	A	cactusrental.com
216.52.84.71	A	cactuswh.com
216.52.84.105	A	mail.eaglerockenergy.com
216.52.84.105	A	mail.eaglerock.com
216.52.84.129	PTR	edge1.ge1-0-26.mercuryassoc-1.hou.pnap.net
216.52.84.133	A	gsmfleet.com
216.52.84.140	A	bmcd-fleettest.com
216.52.84.140	A	sf-fleetwave.com
216.52.84.143	PTR	smtp.mercury-assoc.net
216.52.84.143	A	www.cox-fleet.com
216.52.84.145	A	cuddfleet.com
216.52.84.146	A	down.myypo.org
216.52.84.147	A	lyris1.ypo.org
216.52.84.168	A+PTR	rwcsmtp0.7sys.net
216.52.84.169	A	rwcsmtp1.7sys.net
216.52.84.196	PTR	a02-scs-ssl.seven.com
216.52.84.242	A	fleetinverscom.dyndns.org
216.52.86.74	A	atroad.com
216.52.86.74	A	road-inc.com
216.52.86.74	A	apsolve.com