Robtex

Up: 81.18.208.0/20
Can't show all results, try to descend to a more specific CIDR
Down left: 81.18.216.0/22
Down right: 81.18.220.0/22
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
81.18.216.130	PTR	81-18-216-130.static.chello.pl
81.18.216.139	PTR	81-18-216-139.static.chello.pl
81.18.216.155	PTR	81-18-216-155.static.chello.pl
81.18.216.186	PTR	81-18-216-186.static.chello.pl
81.18.216.193	PTR	81-18-216-193.static.chello.pl
81.18.216.200	PTR	81-18-216-200.static.chello.pl
81.18.216.209	PTR	81-18-216-209.static.chello.pl
81.18.216.217	PTR	81-18-216-217.static.chello.pl
81.18.216.218	A+PTR	81-18-216-218.static.chello.pl
81.18.216.233	PTR	81-18-216-233.static.chello.pl
81.18.217.88	A	81-18-217-88.static.chello.pl
81.18.217.254	A	81-18-217-254.static.chello.pl
81.18.218.9	PTR	81-18-218-9.static.chello.pl
81.18.218.34	A+PTR	mail.itme.edu.pl
81.18.218.35	A	ointe.itme.edu.pl
81.18.218.36	A	sp.itme.edu.pl
81.18.218.50	A+PTR	81-18-218-50.static.chello.pl
81.18.218.50	A	frodo.allegro.com.pl
81.18.218.50	A	merlin.allegro.com.pl
81.18.218.52	A	ns2.nfs.waw.pl
81.18.218.57	PTR	81-18-218-57.static.chello.pl
81.18.218.57	A	allegro.com.pl
81.18.218.57	A	www.allegro.com.pl
81.18.218.150	A	81-18-218-150.static.chello.pl
81.18.218.150	A	sobieski.com.pl
81.18.218.152	PTR	81-18-218-152.static.chello.pl
81.18.218.154	A	poczta.magnesy.eu
81.18.218.154	A	mail.enes.com.pl
81.18.218.156	A	enes-magnets.pl
81.18.218.157	A	poczta.magnesy.eu
81.18.218.157	A	magnet-magnete.eu
81.18.218.158	A	magnet-magnete.eu
81.18.218.160	A+PTR	81-18-218-160.static.chello.pl
81.18.218.194	A+PTR	phoenix.interlan.to
81.18.218.195	PTR	81-18-218-195.static.chello.pl
81.18.218.195	A	ns.tojest.to
81.18.218.195	A	mail.aeon.pl
81.18.218.214	A	mail.gmpolska.pl
81.18.218.222	A	www.excodus.com
81.18.218.226	PTR	81-18-218-226.static.chello.pl
81.18.218.226	A	mail.aksum.eu
81.18.218.227	A+PTR	poczta.lawsolutions.eu
81.18.218.232	A	poczta.taacsolutions.pl
81.18.219.2	PTR	srv-web.galaxy.com.pl
81.18.219.2	A	tapolska.pl
81.18.219.2	A	dobreserwery.com.pl
81.18.219.3	PTR	srv-edge.galaxy.com.pl
81.18.219.4	A	dobreserwery.com.pl
81.18.219.4	A	dobreserwery.com
81.18.219.4	A	tanieserwery.com.pl
81.18.219.18	A+PTR	81-18-219-18.static.chello.pl
81.18.219.26	A	81-18-219-26.static.chello.pl
81.18.219.118	A	dns2.inteko.com.pl
81.18.219.118	A	81-18-219-118.static.chello.pl
81.18.219.187	PTR	81-18-219-187.static.chello.pl
81.18.219.187	A	djsklep.com.pl
81.18.219.190	A	djsklep.com
81.18.219.190	A	mail.mediam.pl
81.18.219.219	PTR	81-18-219-219.static.chello.pl
81.18.219.234	PTR	81-18-219-234.static.chello.pl
81.18.219.234	A	poczta.intereuropol.pl
81.18.219.234	A	intereuropol.com
81.18.219.242	A+PTR	81-18-219-242.static.chello.pl
81.18.220.4	A+PTR	81-18-220-4.static.chello.pl
81.18.220.4	A	avsystem.com
81.18.220.4	A	dc-2ba2d800bfcf.rozkmina.com
81.18.220.30	A	mailrelay.avsystem.com
81.18.220.65	A+PTR	81-18-220-65.static.chello.pl
81.18.220.65	A	ns2.dml.net.pl
81.18.220.68	A	81-18-220-68.static.chello.pl
81.18.220.68	A	zimbra.dml.net.pl
81.18.220.97	PTR	81-18-220-97.static.chello.pl
81.18.220.97	A	router.ergo.net.pl
81.18.220.100	A	epsilon.ergo.net.pl
81.18.220.101	A	lambda.ergo.net.pl
81.18.220.102	A	mail.ergo.net.pl
81.18.220.104	A	glassfish.ergo.net.pl
81.18.220.105	A	epsilon-ilo.ergo.net.pl
81.18.220.108	A	magazyn.ergo.net.pl
81.18.220.110	A	aplikacje.ergo.net.pl
81.18.220.112	PTR	www.ergo.net.pl
81.18.220.112	A	ftp.ergo.net.pl
81.18.220.112	A	poczta.ergo.net.pl
81.18.220.114	A	backup.ergo.net.pl
81.18.220.115	A+PTR	81-18-220-115.static.chello.pl
81.18.220.211	PTR	81-18-220-211.static.chello.pl
81.18.220.211	A	mail.oirp.waw.pl
81.18.220.216	A	szukajradcy.pl
81.18.221.26	A+PTR	main.gambit.net.pl
81.18.221.26	A	gambit.krakow.pl
81.18.221.26	A	gambit.net.pl
81.18.222.9	PTR	mail.streamsoft.pl
81.18.222.9	A	poczta.streamsoft.pl
81.18.222.9	A	dns2.pcbiznes.net
81.18.222.10	PTR	www.streamsoft.pl
81.18.222.14	A	pcbiznes.pl
81.18.222.17	A	www.firmino.pl
81.18.222.19	PTR	19.static.streamsoft.pl
81.18.222.19	A	streamsoft.pl
81.18.222.19	A	pcbiznes.pl
81.18.223.98	PTR	mail.str.com.pl
81.18.223.130	A	mili.cyberbiznes.biz
81.18.223.131	A+PTR	81-18-223-131.static.chello.pl
81.18.223.131	A	mikro.cyberbiznes.com
81.18.223.132	A	81-18-223-132.static.chello.pl
81.18.223.142	A	peta.cyberbiznes.pl
81.18.223.206	A	izgo.pl
81.18.223.240	A+PTR	81-18-223-240.static.chello.pl
81.18.223.253	A	81-18-223-253.static.chello.pl
81.18.223.253	A	firma.wbs-bank.pl
81.18.223.254	A	wbs-bank.pl
81.18.223.254	A	www.wbs-bank.pl