Robtex

Up: 212.142.0.0/18
Can't show all results, try to descend to a more specific CIDR
Down left: 212.142.0.0/20
Down right: 212.142.16.0/20
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
212.142.0.34	A+PTR	nl-ams02a-ra2-be-10-10.aorta.net
212.142.2.10	PTR	schippers.nl
212.142.3.104	A	mail.intelco.nl
212.142.6.6	PTR	ba.vlan3.ah00rs01.brain.upc.nl
212.142.6.17	PTR	ba.harderwijk.ah00rs02.brain.upc.nl
212.142.6.65	PTR	ba.leeuwarden.ah00rs02.brain.upc.nl
212.142.6.68	PTR	smtp.skiltronics.nl
212.142.6.97	PTR	ba.nijmegen.ah00rs02.brain.upc.nl
212.142.6.129	PTR	ba.vlan8.ah00rs01.brain.upc.nl
212.142.6.130	PTR	nieuwland.nl
212.142.6.252	A	mail.bwl.nl
212.142.7.36	A	hlm-vx-cedexis.live.dyncdn.horizon.tv
212.142.8.1	PTR	ns3.upc.nl
212.142.8.74	A	kartdate.nl
212.142.8.121	A	mail.lovink-enertech.nl
212.142.8.121	A	lovink-enertech.nl
212.142.9.2	PTR	fe0-0.zp01rt01.net.upc.nl
212.142.9.23	PTR	www.wullink.nl
212.142.9.33	PTR	v556.zp01rt01.net.upc.nl
212.142.9.34	PTR	proxytb.zp.net.upc.nl
212.142.9.50	PTR	ns4.upc.nl
212.142.9.88	PTR	p9088.net.upc.nl
212.142.9.253	PTR	zp00rtr03.brain.upc.nl
212.142.10.103	A	er78cbr51.net.upc.nl
212.142.10.171	A	rt72ubr76.net.upc.nl
212.142.11.186	PTR	smtp1.upc.nl
212.142.12.4	PTR	4.landis-im.com
212.142.14.26	A	data.chello.sk
212.142.15.30	PTR	hm00cat12.brain.upc.nl
212.142.15.62	PTR	hm00cat11.brain.upc.nl
212.142.17.131	A	www-upc-ch.uat.upc.biz
212.142.17.132	A	myupcapp-upc-biz.jit.upc.biz
212.142.17.154	A	im-unitymedia-de.jit.upc.biz
212.142.17.163	A	uat-aem6-www-upc-at.upc.biz
212.142.17.163	A	www-upc-at.uat.aem.upc.biz
212.142.17.178	A	aem6-www-upc-ch.jit.upc.biz
212.142.17.179	A	aem6-www-upc-ch.uat.upc.biz
212.142.19.1	A	gig6-0.ls00rt03.brain.upc.nl
212.142.19.1	A	gig6-0.ls00rtr03.brain.upc.nl
212.142.21.25	PTR	ad00esw21.brain.upc.nl
212.142.22.49	PTR	qmail.upc.nl
212.142.22.54	A	ocsmsprd01.upcservice.net
212.142.22.54	A	www.upcservice.net
212.142.22.60	A+PTR	mail.upcservice.net
212.142.22.102	A	amsprdweb00.upccorp.com
212.142.22.103	A	amsprdweb01.upccorp.com
212.142.22.105	A	ps.upc.biz
212.142.22.116	A	mail3.upc.biz
212.142.22.196	A	mailing.upc.com.pl
212.142.22.200	A	qmail.upc.nl
212.142.22.202	A	upc-france.com
212.142.22.204	A	kma.upcbroadband.com
212.142.23.158	PTR	nm10cat11.brain.upc.nl
212.142.23.158	A	elfrink.info
212.142.28.20	A	ah00rt11.net.upc.nl
212.142.28.66	PTR	ns1.upc.nl
212.142.28.67	PTR	ns2.upc.nl
212.142.28.67	A	ntp0.chello.nl
212.142.28.67	A	ntp.chello.nl
212.142.28.114	A	ah00rsm02.brain.upc.nl
212.142.28.115	A	ah00rt07.priority.upc.nl
212.142.28.130	A+PTR	arnhem.telekabel.nl
212.142.28.130	A	ns.telekabel.nl
212.142.28.130	A	mail.telekabel.nl
212.142.28.195	A	max.net.upc.nl
212.142.28.226	A+PTR	games1.chello.nl
212.142.28.227	A+PTR	games2.chello.nl
212.142.28.228	A	games3.chello.nl
212.142.28.230	A	games4.chello.nl
212.142.29.19	PTR	mail.dip.nl
212.142.29.76	PTR	mail.bwe-sdw.nl
212.142.29.86	PTR	smtp.reckers.nl
212.142.29.194	PTR	mikrocentrum.nl
212.142.30.8	A	mail.patrimoniumheerenveen.nl
212.142.30.113	A	mail.ishbv.nl
212.142.30.132	A	wp-1321050000000000.id.cdn.upcbroadband.com
212.142.30.132	A	upc-nl-5043.live.horizon.tv
212.142.30.132	A	upc-nl-5114.live.horizon.tv
212.142.30.134	A	wp-1321050000000000.id.cdn.upcbroadband.com
212.142.30.136	A	wp-1321050000000000.id.cdn.upcbroadband.com
212.142.30.136	A	upc-nl-5043.live.horizon.tv
212.142.30.138	A	wp-1321050000000000.id.cdn.upcbroadband.com
212.142.30.138	A	upc-nl-5003.live.horizon.tv
212.142.30.140	A	wp-1321050000000000.id.cdn.upcbroadband.com
212.142.30.140	A	upc-nl-5028.live.horizon.tv
212.142.30.142	A	wp-1321050000000000.id.cdn.upcbroadband.com
212.142.30.142	A	upc-nl-5003.live.horizon.tv
212.142.30.144	A	wp-1321050000000000.id.cdn.upcbroadband.com
212.142.30.144	A	upc-nl-5114.live.horizon.tv
212.142.30.144	A	wp-d261720000000000.id.cdn.upcbroadband.com
212.142.30.146	A	wp-1321050000000000.id.cdn.upcbroadband.com
212.142.30.146	A	upc-nl-5003.live.horizon.tv
212.142.30.148	A	wp-1321050000000000.id.cdn.upcbroadband.com
212.142.30.148	A	upc-nl-5003.live.horizon.tv
212.142.30.150	A	wp-1321050000000000.id.cdn.upcbroadband.com
212.142.30.150	A	upc-nl-5003.live.horizon.tv
212.142.30.152	A	wp-1321050000000000.id.cdn.upcbroadband.com
212.142.30.154	A	wp-1321050000000000.id.cdn.upcbroadband.com
212.142.30.164	A	wp-1321050000000000.id.cdn.upcbroadband.com
212.142.30.164	A	wp-d261720000000000.id.cdn.upcbroadband.com
212.142.30.164	A	upc-nl-5003.live.horizon.tv
212.142.30.166	A	wp-1321050000000000.id.cdn.upcbroadband.com
212.142.30.166	A	upc-nl-5003.live.horizon.tv
212.142.30.168	A	upc-nl-5003.live.horizon.tv
212.142.30.170	A	wp-1321050000000000.id.cdn.upcbroadband.com
212.142.30.170	A	wp-d261720000000000.id.cdn.upcbroadband.com
212.142.30.170	A	upc-nl-5003.live.horizon.tv
212.142.30.172	A	wp-1321050000000000.id.cdn.upcbroadband.com
212.142.30.172	A	upc-nl-5003.live.horizon.tv
212.142.30.174	A	upc-nl-5003.live.horizon.tv
212.142.30.176	A	wp-c221050000000000.id.cdn.upcbroadband.com
212.142.30.176	A	upc-nl-5003.live.horizon.tv
212.142.30.178	A	wp-1321050000000000.id.cdn.upcbroadband.com
212.142.30.178	A	upc-nl-5003.live.horizon.tv
212.142.30.180	A	wp-1321050000000000.id.cdn.upcbroadband.com
212.142.30.182	A	wp-1321050000000000.id.cdn.upcbroadband.com
212.142.30.182	A	upc-nl-5003.live.horizon.tv
212.142.30.184	A	wp-1321050000000000.id.cdn.upcbroadband.com
212.142.30.250	A	wp-7e4c3c0000000000.id.cdn.upclabs.com
212.142.30.252	A	wp-7e4c3c0000000000.id.cdn.upclabs.com