Robtex

Up: 192.68.50.0/23
Can't show all results, try to descend to a more specific CIDR
Down left: 192.68.51.0/25
Down right: 192.68.51.128/25
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
192.68.51.10	PTR	mail.ncbj.gov.pl
192.68.51.16	A	ipj.gov.pl
192.68.51.16	A	www.ncbj.gov.pl
192.68.51.16	A	ncbj.gov.pl
192.68.51.19	A+PTR	helpdesk.ncbj.gov.pl
192.68.51.19	A+PTR	otrs.ncbj.gov.pl
192.68.51.20	A	cis.gov.pl
192.68.51.20	A	atom.edu.pl
192.68.51.193	A+PTR	fw.cis.gov.pl
192.68.51.194	A+PTR	www.cis.gov.pl
192.68.51.194	A	cis.gov.pl
192.68.51.194	A	statsolutions.eu
192.68.51.195	A+PTR	ca.cis.gov.pl
192.68.51.196	A+PTR	ns1.cis.gov.pl
192.68.51.197	A+PTR	mail.cis.gov.pl
192.68.51.197	A	mx1.renderownia.pl
192.68.51.198	A+PTR	webproxy1.cis.gov.pl
192.68.51.199	A+PTR	licenses.cis.gov.pl
192.68.51.202	A+PTR	ui.cis.gov.pl
192.68.51.204	A+PTR	ipsec.cis.gov.pl
192.68.51.205	A+PTR	se.cis.gov.pl
192.68.51.206	A+PTR	bdii.cis.gov.pl
192.68.51.207	A+PTR	ce.cis.gov.pl
192.68.51.208	A+PTR	stor110.cis.gov.pl
192.68.51.209	A+PTR	stor109.cis.gov.pl
192.68.51.211	A+PTR	cms-vo.cis.gov.pl
192.68.51.213	A+PTR	cobol.cis.gov.pl
192.68.51.214	A+PTR	app-gw.cis.gov.pl
192.68.51.215	A+PTR	pwrcore.cis.gov.pl
192.68.51.216	A+PTR	webproxy2.cis.gov.pl
192.68.51.217	A+PTR	dirac.cis.gov.pl
192.68.51.218	PTR	astrodata.cis.gov.pl.51.68.192.in-addr.arpa
192.68.51.218	A	astrodata.cis.gov.pl
192.68.51.220	A+PTR	renderownia.cis.gov.pl
192.68.51.220	A	renderownia.eu
192.68.51.220	A	renderownia.pl
192.68.51.221	A+PTR	mail.piotrszwajkowski.com
192.68.51.221	PTR	piotszwajkowski.com
192.68.51.221	PTR	www.piotrszwajkowski.com
192.68.51.222	A+PTR	webproxy.cis.gov.pl
192.68.51.225	A+PTR	gw1.cis.gov.pl
192.68.51.226	PTR	gw1.ncbj.gov.pl
192.68.51.240	PTR	transmisja.cis.gov.pl