Robtex

Up: 158.255.240.0/20
Can't show all results, try to descend to a more specific CIDR
Down left: 158.255.248.0/22
Down right: 158.255.252.0/22
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
158.255.248.1	PTR	data.vychod.net
158.255.248.1	A	kirk.vychod.net
158.255.248.1	A	jumbo.vychod.net
158.255.248.2	A+PTR	z.vychod.net
158.255.248.7	A	nat.vychod.net
158.255.248.10	A	nat-10.vychod.net
158.255.248.13	A	nat-13.vychod.net
158.255.248.16	A	nat-16.vychod.net
158.255.248.17	A+PTR	nat-17.vychod.net
158.255.248.21	A	nat-21.vychod.net
158.255.248.22	A+PTR	nat-22.vychod.net
158.255.248.24	A+PTR	nat-24.vychod.net
158.255.248.66	A+PTR	ns.vychod.net
158.255.248.67	PTR	smtp.vychod.net
158.255.248.69	A+PTR	qp.vychod.net
158.255.248.97	A+PTR	z-z.vychod.net
158.255.248.98	PTR	andricik.com
158.255.248.99	A+PTR	vychod.net
158.255.248.99	A	www.vychod.net
158.255.248.101	A	mail.vychod.net
158.255.248.130	A	jumbo.vychod.net
158.255.248.134	PTR	www.vychod.net
158.255.248.136	A	db.vychod.net
158.255.248.138	PTR	mail.vychod.net
158.255.248.138	A	smtp.vychod.net
158.255.248.140	A	oleo-mac.co.uk
158.255.248.140	A	emak.co.uk
158.255.248.161	A+PTR	server.devvap.sk
158.255.248.161	A	eltc.sk
158.255.248.169	A+PTR	ramon.vychod.net
158.255.248.190	A+PTR	server.emagine.sk
158.255.248.190	A	www.mfkkosice.sk
158.255.248.190	A	www.kosiceonline.sk
158.255.248.198	A	koral.orte.sk
158.255.248.198	A	*.orte.sk
158.255.248.198	A	zadania.sk
158.255.248.200	A+PTR	nat-200.vychod.net
158.255.248.204	A	db.vychod.net
158.255.248.205	A	us.vychod.net
158.255.248.206	A	mon.vychod.net
158.255.248.210	A+PTR	jt.vychod.net
158.255.249.2	PTR	k2networks.sk
158.255.249.2	A	mail.projektyit.sk
158.255.249.2	A	gorilasport.sk
158.255.249.3	PTR	mail.k2net.sk
158.255.249.29	A	projektyit.sk
158.255.249.142	A	ns1.eraweb.sk
158.255.249.162	PTR	mail.eraweb.sk
158.255.249.162	A	cm-servis.sk
158.255.249.162	A	*.4spirit.sk
158.255.249.163	PTR	web.era.sk
158.255.249.164	PTR	cms.era.sk
158.255.249.165	PTR	smtp.eraweb.sk
158.255.249.178	A	www.starsat.sk
158.255.249.178	A	flynet.sk
158.255.249.178	A	rekuperator.sk
158.255.249.186	A+PTR	mail.uskvbl.sk
158.255.249.186	A	avionreal.sk
158.255.249.186	A	prokes.sk
158.255.249.194	A+PTR	dial.flynet.sk
158.255.249.194	A	mail.flynet.sk
158.255.249.194	A	alpha.flynet.sk
158.255.249.198	PTR	server4.presnet.sk
158.255.249.202	PTR	mail.alpus.sk.249.255.158.in-addr.arpa
158.255.249.202	A	alpus.sk
158.255.249.202	A	mail.alpus.sk
158.255.250.2	A	mail.janusteam.sk
158.255.250.2	A	mail.szabo.sk
158.255.255.57	PTR	remote.plast-ex.sk
158.255.255.57	A	ex-plast.sk
158.255.255.106	A	proxy.kaiser.sk
158.255.255.106	A	mail.kaiser.sk