Robtex

Up: 81.0.192.0/19
Can't show all results, try to descend to a more specific CIDR
Down left: 81.0.192.0/21
Down right: 81.0.200.0/21
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
81.0.192.0	PTR	casablanca-net.casablanca.cz
81.0.192.3	PTR	r4n.vl95.cas.ip-anywhere.net
81.0.192.131	PTR	unassigned-81-0-192-131.casablanca.cz
81.0.193.0	PTR	net-81-0-193-000.casablanca.cz
81.0.193.243	PTR	unassigned-81-0-193-243.casablanca.cz
81.0.194.0	PTR	casablanca-net.casablanca.cz
81.0.196.0	PTR	casablanca-net.casablanca.cz
81.0.196.226	PTR	unassigned-81-0-196-226.wia.cz
81.0.196.226	A	voip.web4u.cz
81.0.197.18	A+PTR	remote.ansuz.cz
81.0.197.98	PTR	assigned-81-0-197-098.casablanca.cz
81.0.197.98	A	www.bakr.cz
81.0.197.98	A	bakr.cz
81.0.197.114	PTR	terminal.verkon.cz
81.0.197.114	A	mail.verkon.cz
81.0.197.114	A	mail.moje-zidle.cz
81.0.197.134	A	tetris-4-p.cust.casablanca.cz
81.0.197.134	A	posta.akpolansky.cz
81.0.197.134	A	vpn.akpolansky.cz
81.0.197.166	A	zs-weberova.casablanca.cz
81.0.197.202	A	mail.labimexcz.cz
81.0.197.202	A	mail.labimex.cz
81.0.197.206	A	office.desjoyaux-praha.cz
81.0.197.214	A	post.famvac.cz
81.0.197.214	A	mail.asit.cz
81.0.197.214	A	mail.cryptonixtechnologies.com
81.0.197.234	A	sara.saraevents.cz
81.0.197.246	A	mail.divadlopodpalmovkou.cz
81.0.198.19	PTR	unassigned-81-0-198-019.casablanca.cz
81.0.198.19	A	konecny.photography
81.0.198.21	A	zobraz.cz
81.0.198.23	A	trisa.cz
81.0.198.24	A	kumgang.org
81.0.198.97	PTR	unassigned-81-0-198-97.wia.cz
81.0.198.97	A	mail.femifit.cz
81.0.198.97	A	mail.goldlily.cz
81.0.198.113	PTR	assigned-81-0-198-113.casablanca.cz
81.0.198.117	A	mail.adhoc.cz
81.0.198.117	A	domino.adhoc.cz
81.0.198.146	A+PTR	web.opw.cz
81.0.198.148	A	mail4.opw.cz
81.0.198.149	A	mail3.opw.cz
81.0.198.161	PTR	assigned-81-0-198-161.casablanca.cz
81.0.198.178	PTR	assigned-81-0-198-178.365internet.cz
81.0.198.195	PTR	unassigned-81-0-198-195.casablanca.cz
81.0.198.195	A	nurv.cz
81.0.199.16	PTR	assigned-81-0-199-016.casablanca.cz
81.0.199.17	A+PTR	jaromer-josefov.cz
81.0.199.17	A	www.jaromer-josefov.cz
81.0.199.18	PTR	hosting00.trilogic.cz
81.0.199.18	A	dizzy128.cz
81.0.199.18	A	arnoldfoto.cz
81.0.199.32	PTR	assigned-81-0-199-032.casablanca.cz
81.0.199.33	PTR	neternity.neternity.cz
81.0.199.33	A	mysonet.cz
81.0.199.33	A	vitapharma.cz
81.0.199.34	PTR	gamres.cz
81.0.199.35	PTR	web7.cz
81.0.199.37	A	automuzeum.cz
81.0.199.49	A	bak.topfun.cz
81.0.199.50	PTR	unassigned-81-0-199-50.casablanca.cz
81.0.199.50	A	ns.topfun.cz
81.0.199.51	A	cat.topfun.cz
81.0.199.52	A	tux.topfun.cz
81.0.199.113	PTR	phoenix.casablanca.cz
81.0.199.113	A	7gramu.sk
81.0.199.113	A	duhovasit.cz
81.0.199.129	PTR	fex.gardx.cust.casablanca.cz
81.0.199.129	A	www.igard.biz
81.0.199.129	A	igard.biz
81.0.199.145	PTR	isis.securitynet.cz
81.0.199.145	A	mxbak.hukot.net
81.0.199.153	A	mxbak.hukot.net
81.0.199.155	A	aquaparkprague.com
81.0.199.155	A	gefos.eu
81.0.199.155	A	aquaparkprague.cz
81.0.199.176	PTR	net-81-0-199-176.casablanca.cz
81.0.199.177	A	selflearning.cz
81.0.199.178	A	selfmanagement.cz
81.0.199.178	A	self-management.cz
81.0.199.181	A	rodicecsob.cz
81.0.199.194	A	gilien.com
81.0.199.194	A	rowlf.e-websolutions.eu
81.0.199.194	A	gilien.eu
81.0.199.216	A	srv201-test.bitstock.com
81.0.199.219	A	www.bitstock.com
81.0.199.219	A	srv201.bitstock.com
81.0.199.219	A	bitstock.com
81.0.199.225	PTR	yoda.imper.cz
81.0.199.225	A	imper.sk
81.0.199.225	A	leady.cz
81.0.199.241	A+PTR	vega.neotech.cz
81.0.199.245	A	backup.treomedia.cz
81.0.199.246	A	piccoll.com
81.0.199.246	A	*.pixcoll.com
81.0.200.30	A	ty-trubko.com
81.0.200.35	PTR	sds.cnc.cz
81.0.200.46	A	*.pageflipper.com
81.0.200.46	A	static.pageflipper.com
81.0.200.46	A	pageflipper.com
81.0.200.53	A	mzd.cachrov.cz
81.0.200.62	A	nagios.ecsoft.cz
81.0.200.98	PTR	mail.dacc.cz
81.0.200.100	PTR	smtp.dacc.cz
81.0.200.131	PTR	gaesin-rt.dcg.is
81.0.200.133	A	binarysols.com
81.0.200.133	A	*.dempseyclark.is
81.0.200.133	A	inkasso.cz
81.0.200.145	PTR	db.asko.cz
81.0.200.146	PTR	www.asko.cz
81.0.200.154	A	*.orbtrack.net
81.0.200.154	A	mail.orbtrack.net
81.0.200.154	A	orbtrack.net
81.0.200.160	PTR	www.paylo.cz
81.0.200.163	PTR	www0.freeride.cz
81.0.200.166	A	slevy-praha.cz
81.0.200.166	A	ostrava-slevy.cz
81.0.200.166	A	slevy-olomouc.cz
81.0.200.182	A	memc1.dacc.cz
81.0.200.183	A	memc0.dacc.cz
81.0.200.185	A	fc1929.com
81.0.200.187	A	butlercollection.com
81.0.200.199	A	ftp.dcg.is
81.0.200.203	A	wesc.freeride.cz
81.0.200.203	A	wescpartytrick.freeride.cz
81.0.200.225	PTR	lb001.cloudiff.com
81.0.200.225	A	cloudiff.eu
81.0.200.225	A	cloudiff.cz
81.0.200.227	PTR	tester.epbx.cz
81.0.200.241	PTR	slave1.last.cz
81.0.200.241	A	chylik.cz
81.0.200.242	PTR	master.last.cz
81.0.200.248	A	www.nezavislyporadce.cz
81.0.200.248	A	nezavislyporadce.cz
81.0.200.249	A	ok-auction.eu
81.0.201.43	A	ns.proholding.net
81.0.201.55	A	mail1.roehrer.com
81.0.202.0	PTR	net-81-0-202-000.casablanca.cz
81.0.202.1	PTR	assigned-81-0-202-001.casablanca.cz
81.0.202.1	A	ondracek.net
81.0.202.1	A	kezzlin.cz
81.0.202.18	PTR	assigned-81-0-202-018.casablanca.cz
81.0.202.46	A	mail.aicta.cz
81.0.202.46	A	mail.aicta.com
81.0.202.82	A+PTR	mail.sespha8.cz
81.0.202.82	A	sespha8.cz
81.0.202.161	PTR	gw-magic-seven.cust.casablanca.cz
81.0.202.161	A	skuhry.com
81.0.202.250	PTR	assigned-81-0-202-250.casablanca.cz
81.0.202.250	A	server1.truck-expert.cz
81.0.202.250	A	server2.truck-expert.cz
81.0.203.0	PTR	net-81-0-203-000.epraha8.net
81.0.204.0	PTR	hsr1-sokolovska.praha9net.cz
81.0.204.122	A	hsr23-litvinovska600.praha9net.cz
81.0.204.122	A	gw-hsr13-usvobodarny.praha9net.cz
81.0.204.122	A	*.praha9net.cz
81.0.204.129	A+PTR	hsr1-0.praha9net.cz
81.0.204.130	A	hsr1-1.praha9net.cz
81.0.204.132	A	hsr2-0.praha9net.cz
81.0.204.140	A	hsr4-2.praha9net.cz
81.0.204.154	A	hsr9-1.praha9net.cz
81.0.204.158	A	hsr10-2.praha9net.cz
81.0.204.161	A	hsr11-2.praha9net.cz
81.0.205.0	PTR	asko-bck.cust.casablanca.cz
81.0.205.102	A	elastoform.casablanca.cz
81.0.205.110	A	mailserver.packshot.biz
81.0.205.110	A	packshot.biz
81.0.205.126	A	ecdidp.casablanca.cz
81.0.205.128	PTR	net-81-0-205-128.casablanca.cz
81.0.205.138	A	sps-drtinova.casablanca.cz
81.0.205.146	PTR	rt-new.casablanca.cz
81.0.205.146	A	rt.casablanca.cz
81.0.205.178	A	mail.medicomclinic.cz
81.0.205.178	A	mail.medicomvip.cz
81.0.205.182	A	sosasout-lipi.casablanca.cz
81.0.205.210	PTR	tr-thamova-swh2.casablanca.cz
81.0.205.210	A	pop-thamova.casablanca.cz
81.0.205.210	A	pop-thamova7.casablanca.cz
81.0.205.245	A	gw-casablanca.gisat.cz
81.0.205.245	A	siurex.gisat.cz
81.0.205.245	A	gw.gisat.cz
81.0.206.0	PTR	net-81-0-206-000.casablanca.cz
81.0.206.1	PTR	unassigned-81-0-206-001.casablanca.cz
81.0.206.2	PTR	unassigned-81-0-206-002.casablanca.cz
81.0.206.3	PTR	unassigned-81-0-206-003.casablanca.cz
81.0.206.8	A	tercier.cz
81.0.206.12	A	alimenteonline.com
81.0.206.16	PTR	unassigned-81-0-206-016.casablanca.cz
81.0.206.17	PTR	unassigned-81-0-206-017.casablanca.cz
81.0.206.18	PTR	unassigned-81-0-206-018.casablanca.cz
81.0.206.19	PTR	unassigned-81-0-206-019.casablanca.cz
81.0.206.32	PTR	net-81-0-206-032.casablanca.cz
81.0.206.33	A+PTR	mail.lastminute.cz
81.0.206.33	A	skateboard.sk
81.0.206.33	A	snowboardy.sk
81.0.206.34	PTR	y2.lastminute.cz
81.0.206.35	PTR	y3.lastminute.cz
81.0.206.48	PTR	cifo.x64.cz
81.0.206.49	A	mail2.photopost.cz
81.0.206.49	A	*.photopost.cz
81.0.206.49	A	web.photopost.cz
81.0.206.50	PTR	assigned-81-0-206-050.casablanca.cz
81.0.206.51	PTR	u15.onlinehosting.cz
81.0.206.64	PTR	net-81-0-206-064.casablanca.cz
81.0.206.65	PTR	assigned-81-0-206-065.casablanca.cz
81.0.206.66	PTR	m1.crs-net.cz
81.0.206.66	A	mail.adamoto.eu
81.0.206.66	A	secondary.crs-net.cz
81.0.206.67	PTR	assigned-81-0-206-067.casablanca.cz
81.0.206.80	PTR	assigned-81-0-206-080.casablanca.cz
81.0.206.81	PTR	assigned-81-0-206-081.casablanca.cz
81.0.206.82	PTR	assigned-81-0-206-082.casablanca.cz
81.0.206.83	PTR	assigned-81-0-206-083.casablanca.cz
81.0.206.87	A	www.geko.systems
81.0.206.87	A	www.mohajicafe.cz
81.0.206.87	A	www.umotaka.cz
81.0.206.96	PTR	net-81-0-206-096.casablanca.cz
81.0.206.97	PTR	nakupka.cz
81.0.206.97	A	nakupka.eu
81.0.206.97	A	*.nakupka.cz
81.0.206.98	PTR	assigned-81-0-206-098.casablanca.cz
81.0.206.99	PTR	assigned-81-0-206-099.casablanca.cz
81.0.206.112	PTR	c1.premium-wa.cz
81.0.206.112	A	sopp.cz
81.0.206.112	A	oleje-do-motoru.cz
81.0.206.113	PTR	c1.golemos.com
81.0.206.114	PTR	hosting.hostareal.cz
81.0.206.115	PTR	c1.premium-wr.cz
81.0.206.128	PTR	net-81-0-206-128.casablanca.cz
81.0.206.129	PTR	unassigned-81-0-206-129.casablanca.cz
81.0.206.130	PTR	unassigned-81-0-206-130.casablanca.cz
81.0.206.130	A	vm03.sdserver.cz
81.0.206.131	PTR	unassigned-81-0-206-131.casablanca.cz
81.0.206.131	A	beneflex.cz
81.0.206.132	A	srv18.sdserver.cz
81.0.206.134	A	minotaurus.cz
81.0.206.144	PTR	unassigned-81-0-206-144.casablanca.cz
81.0.206.145	PTR	unassigned-81-0-206-145.casablanca.cz
81.0.206.146	PTR	unassigned-81-0-206-146.casablanca.cz
81.0.206.147	PTR	unassigned-81-0-206-147.casablanca.cz
81.0.206.156	A	orbtrack.cz
81.0.206.160	PTR	net-81-0-206-160.casablanca.cz
81.0.206.161	PTR	assigned-81-0-206-161.casablanca.cz
81.0.206.162	PTR	lms.kancelarskestroje.cz
81.0.206.163	PTR	assigned-81-0-206-163.casablanca.cz
81.0.206.165	A	*.elitecat.cz
81.0.206.165	A	ecat.elit.sk
81.0.206.165	A	www.elitecat.cz
81.0.206.176	PTR	assigned-81-0-206-176.casablanca.cz
81.0.206.177	PTR	assigned-81-0-206-177.casablanca.cz
81.0.206.178	PTR	assigned-81-0-206-178.casablanca.cz
81.0.206.179	PTR	assigned-81-0-206-179.casablanca.cz
81.0.206.192	PTR	net-81-0-206-192.casablanca.cz
81.0.206.193	PTR	assigned-81-0-206-193.casablanca.cz
81.0.206.194	PTR	assigned-81-0-206-194.casablanca.cz
81.0.206.194	A	xen1.hostis.net
81.0.206.195	PTR	assigned-81-0-206-195.casablanca.cz
81.0.206.195	A	clanhosting.cz
81.0.206.195	A	ms.clanhosting.cz
81.0.206.203	A	faren-shop.cz
81.0.206.208	PTR	assigned-81-0-206-208.casablanca.cz
81.0.206.209	PTR	assigned-81-0-206-209.casablanca.cz
81.0.206.210	PTR	assigned-81-0-206-210.casablanca.cz
81.0.206.211	A+PTR	tvbanner.cz
81.0.206.211	A	belzepub.cz
81.0.206.211	A	novapravidla.com
81.0.206.224	PTR	assigned-81-0-206-224.casablanca.cz
81.0.206.225	PTR	assigned-81-0-206-225.casablanca.cz
81.0.206.226	A+PTR	mx.temo.cz
81.0.206.227	PTR	assigned-81-0-206-227.casablanca.cz
81.0.206.230	A	ns2.neomezeny.cz
81.0.206.230	A	ns2.hostis.net
81.0.206.231	A	sbs.akstanovsky.cz
81.0.206.240	PTR	assigned-81-0-206-240.casablanca.cz
81.0.206.241	PTR	www.hostis.eu
81.0.206.242	PTR	web.hostis.eu
81.0.206.243	PTR	mail.hostis.eu
81.0.206.244	A	friendsbook.cz
81.0.206.244	A	studio-charlie.cz
81.0.206.244	A	km-komarov.cz
81.0.206.248	A	mxbackup.hostis.net
81.0.207.0	PTR	net-81-0-207-000.casablanca.cz
81.0.207.32	PTR	unassigned-81-0-207-032.casablanca.cz
81.0.207.210	A	kralup.cz