Robtex

Up: 81.175.64.0/19
Can't show all results, try to descend to a more specific CIDR
Down left: 81.175.80.0/21
Down right: 81.175.88.0/21
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
81.175.82.5	A	kortingknaller.nl
81.175.82.27	PTR	min.govcert.nl
81.175.82.201	A	tda.nl
81.175.83.52	A	83-52.wirelessbetuwe.nl
81.175.83.78	A	server.zoeza.nl
81.175.83.79	A	exchange.assetfs.nl
81.175.83.79	A	exchange.axxerionfs.nl
81.175.83.83	A	83-83.wirelessbetuwe.nl
81.175.83.144	A	exchange.offtheroadwheels.nl
81.175.83.148	A	83-148.wirelessbetuwe.nl
81.175.83.175	A	83-175.wirelessbetuwe.nl
81.175.84.22	A	84-22.wirelessbetuwe.nl
81.175.84.190	A	84-190.wirelessbetuwe.nl
81.175.84.192	A	84-192.wirelessbetuwe.nl
81.175.86.1	A	www.sssri-marin.com
81.175.86.4	A	opendagbijmarin.nl
81.175.86.4	A	www.quaestor.org
81.175.86.4	A	binnenvaartforum.eu
81.175.86.5	A	www.quaestor.org
81.175.86.7	A	www.sssri-marin.com
81.175.86.28	A+PTR	mail2.marin.nl
81.175.86.29	A+PTR	mail.marin.nl
81.175.86.35	A	candeacollege.nl
81.175.86.35	A	www.candeacollege.nl
81.175.86.66	A	optimusprime.fcroc.nl
81.175.86.67	PTR	ns1.fcroc.nl
81.175.86.68	PTR	mx1.fcroc.nl
81.175.86.68	A	mx1.techno-lyceum.nl
81.175.86.68	A	mx1.fc-educatie.nl
81.175.86.81	A	eendagblad.nl
81.175.86.81	A	operationjunkyard.net
81.175.86.81	A	fc-educatie.nl
81.175.86.87	PTR	ns3.fcroc.nl
81.175.86.98	PTR	www.penta.nl
81.175.86.100	PTR	mail.penta.nl
81.175.86.133	A+PTR	mail.nl.thomascook.com
81.175.86.133	A	relay.neckermann.nl
81.175.86.158	A	webmail.thomascook.nl
81.175.86.169	A+PTR	smtp1.alysis.nl
81.175.86.169	A	smtp1.rijnstate.nl
81.175.86.170	A+PTR	smtp2.alysis.nl
81.175.86.170	A	smtp2.rijnstate.nl
81.175.86.192	A+PTR	a192.anywise.com
81.175.86.193	A+PTR	a193.anywise.com
81.175.86.194	PTR	a194.anywise.com
81.175.86.194	A	virusscan.bronkhorst.net
81.175.86.194	A	mail.ifpsglobal.com
81.175.86.195	PTR	a195.anywise.com
81.175.86.208	A	a208.anywise.com
81.175.86.208	A	beemster.nu
81.175.86.209	A+PTR	a209.anywise.com
81.175.86.209	A	vroon.net
81.175.86.210	PTR	a210.anywise.com
81.175.86.211	PTR	a211.anywise.com
81.175.86.224	A+PTR	a224.anywise.com
81.175.86.225	A+PTR	a225.anywise.com
81.175.86.226	A+PTR	a226.anywise.com
81.175.86.227	A	a227.anywise.com
81.175.86.240	A+PTR	a240.anywise.com
81.175.86.241	A+PTR	a241.anywise.com
81.175.86.241	A	ontbijtserviceapeldoorn.nl
81.175.86.242	PTR	a242.anywise.com
81.175.86.242	A	sgbmon.nl
81.175.86.243	PTR	a243.anywise.com
81.175.89.3	A	smtp.koopcomfort.nl
81.175.89.8	A	compassa.nl
81.175.89.8	A	theborneoinitiative.nl
81.175.89.8	A	woonbronontwikkelbedrijf.com
81.175.89.20	A+PTR	mail.alcontrol.nl
81.175.89.20	A	mail.alcontrol.fr
81.175.89.20	A	mail.alcontrol.es
81.175.89.50	PTR	pan.intertruck.nl
81.175.89.50	A	mail.tece.nl
81.175.89.104	A+PTR	mail.debitel.nl
81.175.89.105	A	mail.mobiel.nl
81.175.89.105	A	mail3.debitel.nl
81.175.89.228	PTR	mail1.farmfrites.com
81.175.92.41	A	vlan63-am00rc01.prioritytelecom.net
81.175.92.46	A	vlan62-hm00rc01.prioritytelecom.net
81.175.92.89	A	vlan51-am00rc01.prioritytelecom.net
81.175.92.94	A	ge4-0-0-50-am1-gw1.prioritytelecom.net
81.175.92.114	A+PTR	ge5-0-0-42-hm00ra01.prioritytelecom.net
81.175.92.198	PTR	ge0-0-41-am00ni01.prioritytelecom.net
81.175.92.218	A	ge0-0-36-hm00ni01.prioritytelecom.net
81.175.94.139	A+PTR	post.computens.nl
81.175.94.140	A	mail.elbeco.net
81.175.94.141	PTR	mail.schlichtebergen.nl
81.175.94.141	A	okapi-telecom.nl
81.175.94.182	A	mail.ggzoostbrabant.nl
81.175.94.194	A	donar.prvgld.nl
81.175.94.195	A	cont-vpn1.prvgld.nl
81.175.94.196	A	portal.prvgld.nl
81.175.94.212	A+PTR	mail3.prvgld.nl
81.175.94.212	A	mail3.gelderland.nl
81.175.94.223	A	http2-in.gelderland.nl
81.175.94.229	A	geodata.prvgld.nl
81.175.94.229	A	http-in.gelderland.nl
81.175.94.229	A	milieuklacht.gelderland.nl
81.175.94.252	PTR	mail.roar.programmaviking.nl
81.175.94.252	A	roar.programmaviking.nl