Robtex

Up: 77.87.240.0/20
Can't show all results, try to descend to a more specific CIDR
Down left: 77.87.240.0/22
Down right: 77.87.244.0/22
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
77.87.240.1	A+PTR	argo.spoje.net
77.87.240.4	A	snat2.spoje.net
77.87.240.6	A	snat.spoje.net
77.87.240.26	PTR	reflector.br-czf.spoje.net
77.87.240.67	PTR	240-67.cust.spoje.net
77.87.240.67	A	imageoffice.cz
77.87.240.67	A	meriglobe.com
77.87.240.68	A	mailx004.murka.cz
77.87.240.69	A	imageoffice.cz
77.87.240.75	A+PTR	michalvlk.cz
77.87.240.75	A	wolf.n.cz
77.87.240.76	A	lymskaborelioza.cz
77.87.240.76	A	duchovno.cz
77.87.240.81	A+PTR	smtp-relay.spoje.net
77.87.240.82	A+PTR	posta.curaprox.cz
77.87.240.82	A	posta.curaprox4u.cz
77.87.240.82	A	posta.dentalprevention.cz
77.87.240.89	PTR	perla.czpp.eu
77.87.240.93	A	klerk.cz
77.87.240.93	A	fedora.klerk.cz
77.87.240.93	A	php.klerk.cz
77.87.240.98	PTR	posta.curaprox.cz
77.87.240.98	A	posta.curaprox4u.cz
77.87.240.100	A	zelenemesto3.cz
77.87.240.100	A	kodanska-4d.cz
77.87.240.100	A	1radiorental.cz
77.87.240.108	PTR	backup.purehtml.cz
77.87.240.108	A	mail.purehtml.cz
77.87.240.109	PTR	lksrv01.cust.spoje.net
77.87.240.109	A	tomkat.name
77.87.240.118	A+PTR	mail.hilo.cz
77.87.240.121	A	mail.rwis.cz
77.87.240.121	A	rwis.cz
77.87.240.122	PTR	abutree2.nedoweska.org
77.87.240.122	A	dauba.org
77.87.240.122	A	olyfea.cz
77.87.240.124	PTR	molly.kyberia.cz
77.87.240.154	PTR	v6-154.cust.spoje.net
77.87.240.154	A	akumulator.me
77.87.240.162	PTR	manifesto.cust.spoje.net
77.87.240.163	PTR	odin.itpomoc.cz
77.87.240.163	A	kriminalnipolicie.cz
77.87.240.163	A	itpomoc.cz
77.87.241.1	PTR	free-ip-241-1.spoje.net
77.87.241.16	PTR	kairra.czf.spoje.net
77.87.241.20	A	loopie.spoje.net
77.87.241.25	PTR	spofin.czf.spoje.net
77.87.241.26	PTR	typosh.czf.spoje.net
77.87.241.26	A	studio.designiq.cz
77.87.241.26	A	gw.designiq.cz
77.87.241.37	A	sansan.net22.cz
77.87.241.49	PTR	vodan.czf.spoje.net
77.87.241.56	A+PTR	home.honig.cz
77.87.241.58	PTR	aspekt.czf.spoje.net
77.87.241.58	A	gw.qualo.eu
77.87.241.64	PTR	mloknet.czf.spoje.net
77.87.241.64	A	vault87.mloknet.cz
77.87.241.64	A	www.mloknet.cz
77.87.241.73	PTR	xplanet.czf.spoje.net
77.87.241.73	A	scibuli.com
77.87.241.73	A	scibuli.cz
77.87.241.87	A	oestco.oestco.cz
77.87.241.87	A	server.orioncapital.cz
77.87.241.93	A	slikova.cz
77.87.241.93	A	mail.hlavkovi.net
77.87.241.98	A+PTR	ip98.fine.cz
77.87.241.105	PTR	localhost21.czf.spoje.net
77.87.241.115	PTR	plivniks.czf.spoje.net
77.87.241.120	PTR	snb12.czf.spoje.net
77.87.241.125	A	ankara.spoje.net
77.87.241.127	A	klecanky.spoje.net
77.87.241.132	A	bart.binary-bros.cz
77.87.241.140	A	kickass.vitexsoftware.cz
77.87.241.140	A	v.s.cz
77.87.241.140	A	www.vitexsoftware.cz
77.87.241.143	A	pratelstvi.net
77.87.241.144	PTR	bastard.czf.spoje.net
77.87.241.144	A	slechtici.cz
77.87.241.154	PTR	maty.czf.spoje.net
77.87.241.154	A	dejvice.net
77.87.241.158	A	smtp.brugy.com
77.87.241.158	A	linsrv.brugy.com
77.87.241.158	A	brugy.com
77.87.241.163	A+PTR	test.arachne.cz
77.87.241.163	A	testmail.arachne.cz
77.87.241.166	A	l.a.f.cz
77.87.241.166	A	polaq.cz
77.87.241.171	PTR	coex8.czf.spoje.net
77.87.241.171	A	kacerr.zlutazimnice.cz
77.87.241.185	PTR	e4.czf.spoje.net
77.87.241.185	A	piyaandvojta.info
77.87.241.200	A+PTR	fw2.cnw.cz
77.87.241.208	PTR	jaba.czf.spoje.net
77.87.241.208	A	home.jaba.cz
77.87.241.227	PTR	skok.czf.spoje.net
77.87.241.227	A	aquarius.spoje.net
77.87.241.236	A	mail.legeo.cz
77.87.241.241	PTR	mail.pdqm.cz
77.87.241.241	A	mail.nadrchal.eu
77.87.241.241	A	cmmi.cz
77.87.241.242	PTR	kryten.coex.cz
77.87.241.252	A	dionysus.spoje.net
77.87.241.252	A	sysifos.arachne.cz
77.87.241.252	A	sysifos.spoje.net
77.87.242.1	PTR	free-ip-242-1.spoje.net
77.87.242.50	PTR	sale.czf.spoje.net
77.87.242.193	PTR	qkj.czf.spoje.net
77.87.242.208	A	tapiserie.eu
77.87.242.246	A	maildirect.autobilek.cz
77.87.243.2	PTR	53-248.czf.spoje.net
77.87.243.8	PTR	48-133.czf.spoje.net
77.87.243.8	A	mail.mujhosting.com
77.87.243.32	PTR	arm.winel.cust.spoje.net
77.87.243.47	A	mail.7obchodni.cz
77.87.243.90	PTR	otaznik.czf.spoje.net
77.87.243.90	A	jupaproducts.com
77.87.243.90	A	xim.cz
77.87.243.103	A	mail.prejda.com
77.87.243.140	PTR	uhlak.czf.spoje.net
77.87.243.151	A	d.ns.extremehost.cz
77.87.243.152	A	aksutry.cz
77.87.243.152	A	mail1.kerberosit.cz
77.87.243.155	A	ns2.kerberosit.cz
77.87.243.155	A	mail2.kerberosit.cz
77.87.243.158	PTR	www.med.cz
77.87.243.193	A	cloudocalypse.com
77.87.243.194	A	mail.golf4kid.com
77.87.246.1	PTR	free-ip-246-1.spoje.net
77.87.247.1	PTR	free-ip-247-1.spoje.net
77.87.247.135	A	gme.sk
77.87.247.135	A	gme.cz
77.87.247.137	A	softdeluxe.cz
77.87.247.140	A	dagmarboudova.com
77.87.247.140	A	dasaboudova.com
77.87.247.141	A	five.logicnetworks.cz
77.87.247.145	A	mj2.cz
77.87.247.145	A	goldentulipterminus.com
77.87.247.145	A	residencelevelestintino.com
77.87.247.146	PTR	one.logicnetworks.cz