Robtex

Up: 217.197.32.0/19
Can't show all results, try to descend to a more specific CIDR
Down left: 217.197.32.0/21
Down right: 217.197.40.0/21
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
217.197.33.126	A	217-197-33-126.sedlnice.net
217.197.33.239	A+PTR	217-197-33-239.sedlnice.net
217.197.35.142	A	mail.alimama.cz
217.197.36.2	A+PTR	mat.biteo.cz
217.197.36.130	A+PTR	remote.zsstramberk.cz
217.197.36.131	A+PTR	remote.stramberk.cz
217.197.36.133	A+PTR	server.zsstramberk.cz
217.197.37.4	A+PTR	r-vodojem.miramo.cz
217.197.37.5	PTR	r-studenka1.miramo.cz
217.197.37.8	A	r-libhost1.miramo.cz
217.197.37.9	A	r-libhost3.miramo.cz
217.197.37.11	A	r-jesenik.miramo.cz
217.197.37.136	A+PTR	hosting.cs21nextnet.cz
217.197.37.136	A	download.cs21nextnet.cz
217.197.37.137	A+PTR	mail.cs21nextnet.cz
217.197.37.137	A	autodiscover.cs21nextnet.cz
217.197.37.151	PTR	www-r3.natodays.cz
217.197.37.151	A	dennato.cz
217.197.37.151	A	dny-nato.cz
217.197.37.163	A	email.infovize.eu
217.197.37.163	A	email.metrosys.cz
217.197.37.178	A	mail.cs21nextnet.cz
217.197.37.210	PTR	pc8.semodata.cz
217.197.37.210	A	liftcomponents.cz
217.197.37.210	A	konec-sadrose.cz
217.197.37.213	PTR	pc4.semodata.cz
217.197.37.215	PTR	mail.semodata.cz
217.197.38.33	A+PTR	host33-38.miramo.cz
217.197.38.218	A	region-tesinsko.cz
217.197.39.1	A+PTR	ns.vlcovice.net
217.197.39.1	A	mnisi.net
217.197.39.1	A	smtp.vlcovice.net
217.197.39.2	PTR	www.vlcovice.net
217.197.39.29	PTR	v1-29.vlcovice.net
217.197.39.29	A	*.kubos.cz
217.197.39.29	A	kubos.cz
217.197.39.84	PTR	v1-84.vlcovice.net
217.197.39.240	A	zdislava.net
217.197.39.240	A	mailserver.zdislava.net
217.197.39.240	A	router.zdislava.net
217.197.39.253	A+PTR	servis.vlcovice.net
217.197.40.32	PTR	v2-32.vlcovice.net
217.197.40.254	A	gw2.vlcovice.net
217.197.41.70	A	nexgallery.cz
217.197.41.84	A	mail.zs-staravesno.cz
217.197.41.131	A	janecka.org
217.197.41.136	A	mail.bvd-ndt.cz
217.197.41.137	A+PTR	mail.pauwex.cz
217.197.47.8	A	smtp.miramo.cz