Robtex

Up: 81.0.224.0/23
Can't show all results, try to descend to a more specific CIDR
Down left: 81.0.225.0/25
Down right: 81.0.225.128/25
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
81.0.225.2	PTR	assigned-81-0-225-002.casablanca.cz
81.0.225.2	A	r0.trustica.cz
81.0.225.7	PTR	bcast-81-0-225-007.casablanca.cz
81.0.225.17	PTR	assigned-81-0-225-017.casablanca.cz
81.0.225.17	A	nove-skladove-vozy.cz
81.0.225.19	PTR	mailmaster.ad-net.cz
81.0.225.19	A	adnet.cz
81.0.225.19	A	adnet78.ad-net.cz
81.0.225.25	PTR	unassigned-81-0-225-25.casablanca.cz
81.0.225.26	PTR	unassigned-81-0-225-26.casablanca.cz
81.0.225.26	A	a.ns.bccomm.info
81.0.225.42	A	najahost.jed.cz
81.0.225.43	PTR	naja.jed.cz
81.0.225.43	A	okatec.cz
81.0.225.43	A	mail.jizdni-kola-kettler.cz
81.0.225.44	PTR	ip044.linuxsoft.cz
81.0.225.44	A	amanita.jed.cz
81.0.225.53	A	sparovka-hevea.cz
81.0.225.53	A	alistra-eshop.cz
81.0.225.53	A	sadrokartony-semotan.cz
81.0.225.55	PTR	unassigned-81-0-225-055.casablanca.cz
81.0.225.63	PTR	bcast-81-0-225-063.casablanca.cz
81.0.225.65	A+PTR	virtual3.cluster.kdserver.cz
81.0.225.65	A	communicator.cz
81.0.225.65	A	virtual.kdserver.cz
81.0.225.66	A	virtual3.cluster.kdserver.cz
81.0.225.66	A	virtual.kdserver.cz
81.0.225.67	A	virtual2.kdserver.cz
81.0.225.68	A+PTR	virtual2.kdserver.cz
81.0.225.71	A	ns1.kdserver.cz
81.0.225.72	A	ns2.kdserver.cz
81.0.225.75	A+PTR	mail.kdserver.cz
81.0.225.75	A	mail.erotickepomucky.com
81.0.225.76	A	statistiky.co.cz
81.0.225.77	A	deskaelibera.cz
81.0.225.82	A	web2.kdserver.cz
81.0.225.82	A	sporthotelsletiste.cz
81.0.225.83	A	carcity.cz
81.0.225.83	A	kdholding.cz
81.0.225.83	A	cars-city.cz
81.0.225.84	PTR	shop1.kdserver.cz
81.0.225.84	A	erotickepomucky.com
81.0.225.84	A	*.erotickepomucky.com
81.0.225.86	PTR	web1.kdserver.cz
81.0.225.86	A	faww.cz
81.0.225.86	A	slunecnik.com
81.0.225.87	PTR	unassigned-81-0-225-87.casablanca.cz
81.0.225.87	A	wilk.sk
81.0.225.87	A	hostmaster.knaus.sk
81.0.225.89	A+PTR	test1.kdserver.cz
81.0.225.89	A	root.kdserver.cz
81.0.225.89	A	www.kdserver.cz
81.0.225.93	A	veganskerecepty.cz
81.0.225.93	A	mail.veganskerecepty.cz
81.0.225.93	A	teslamotors.cz
81.0.225.94	A	mx.ntisek.cz
81.0.225.95	A	asw2.forum.casino-royale.cz
81.0.225.100	A+PTR	mng.cluster.kdserver.cz
81.0.225.100	A	korus.eu
81.0.225.100	A	e-korus.eu
81.0.225.103	PTR	unassigned-81-0-225-103.casablanca.cz
81.0.225.103	A	www.ntisek.cz
81.0.225.103	A	kdmail.cz
81.0.225.107	PTR	unassigned-81-0-225-107.casablanca.cz
81.0.225.107	A	mail.kdholding.online
81.0.225.107	A	mx.kdserver.cz
81.0.225.108	A	kspeed.cz
81.0.225.108	A	preissler-jiri.cz
81.0.225.113	A	mail.ntisek.cz
81.0.225.114	A	frantisek-preissler.cz
81.0.225.114	A	autoskolahodac.cz
81.0.225.114	A	eua-internet.com
81.0.225.117	A	*.zvrhlost.cz
81.0.225.117	A	www.zvrhlost.cz
81.0.225.117	A	zvrhlost.cz
81.0.225.121	A+PTR	app2.ntisek.cz
81.0.225.121	A	ujelmivlak.cz
81.0.225.121	A	17listopad.cz
81.0.225.122	A	dmscloud.cz
81.0.225.127	PTR	bcast-81-0-225-127.casablanca.cz
81.0.225.129	A+PTR	mail.radium.cz
81.0.225.132	A	vpn.radium.cz
81.0.225.136	PTR	assigned-81-0-225-136.dc3.cz
81.0.225.136	A	david.radium.cz
81.0.225.136	A	mailsec.radium.cz
81.0.225.137	A	repository.radium.cz
81.0.225.139	A	www.sledovani.cz
81.0.225.139	A	cez-test.sledovani.cz
81.0.225.139	A	cexbg.sledovani.cz
81.0.225.150	PTR	assigned-81-0-225-150.dc3.cz
81.0.225.150	A	www.radium.cz
81.0.225.150	A	carposition.cz
81.0.225.153	A	ids-du.cz
81.0.225.153	A	primaenergy.cz
81.0.225.153	A	webproxy01.esledovani.cz
81.0.225.155	A	radium.cz
81.0.225.156	A	cd4you.cz
81.0.225.177	PTR	assigned-81-0-225-177.casablanca.cz
81.0.225.177	A	bmwihned.cz
81.0.225.177	A	renocar-bmw.cz
81.0.225.178	A	www.bmwacrauto.cz
81.0.225.179	A	www.bmwhk.cz
81.0.225.180	A	www.bmwdycom.cz
81.0.225.181	A	www.bmwliberec.cz
81.0.225.183	PTR	assigned-81-0-225-183.casablanca.cz
81.0.225.183	A	bmw2.cz
81.0.225.183	A	bmw-1.cz
81.0.225.184	A	www.bmw-invelt.com
81.0.225.185	A	www.autobase.cz
81.0.225.185	A	www.cartecpraha.cz
81.0.225.188	A	autogral.cz
81.0.225.188	A	kopeckybmw.cz
81.0.225.189	A	www.bmw-synotauto.cz
81.0.225.191	PTR	bcast-81-0-225-191.casablanca.cz
81.0.225.194	PTR	assigned-81.0.225.194.casablanca.cz
81.0.225.194	A	llj.cz
81.0.225.195	PTR	assigned-81.0.225.195.casablanca.cz
81.0.225.195	A	vgp.ro
81.0.225.202	PTR	assigned-81.0.225.202.casablanca.cz
81.0.225.202	A	garpit.cz
81.0.225.213	PTR	bounce1.smartcluster.net
81.0.225.213	A	sudak.cz
81.0.225.241	PTR	assigned-81-0-225-241.casablanca.cz
81.0.225.241	A	www.svjonline.cz
81.0.225.241	A	ifm24.cz
81.0.225.242	PTR	assigned-81-0-225-242.casablanca.cz
81.0.225.242	A	huranavylet.cz
81.0.225.242	A	partnervermittlung.cz
81.0.225.243	A	mail.hezkyapartman.cz
81.0.225.243	A	hezkyapartman.cz
81.0.225.243	A	master.webyard.cz
81.0.225.244	PTR	assigned-81-0-225-244.casablanca.cz
81.0.225.244	A	kancelarske-koberce.cz
81.0.225.244	A	zoznamky.eu
81.0.225.245	PTR	assigned-81-0-225-245.casablanca.cz
81.0.225.245	A	detskekoberce.eu
81.0.225.245	A	mail.seznamka-seznameni.cz