Robtex

Up: 81.18.216.0/21
Can't show all results, try to descend to a more specific CIDR
Down left: 81.18.216.0/23
Down right: 81.18.218.0/23
(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
81.18.216.142	PTR	81-18-216-142.static.chello.pl
81.18.216.155	PTR	81-18-216-155.static.chello.pl
81.18.216.181	PTR	81-18-216-181.static.chello.pl
81.18.216.182	PTR	81-18-216-182.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
81.18.216.206	PTR	81-18-216-206.static.chello.pl
81.18.216.207	PTR	81-18-216-207.static.chello.pl
81.18.216.209	PTR	81-18-216-209.static.chello.pl
81.18.216.215	PTR	81-18-216-215.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+PTR	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	PTR	81-18-218-52.static.chello.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
81.18.218.134	PTR	81-18-218-134.static.chello.pl
81.18.218.140	PTR	81-18-218-140.static.chello.pl
81.18.218.150	A+PTR	81-18-218-150.static.chello.pl
81.18.218.150	A	sobieski.com.pl
81.18.218.151	PTR	81-18-218-151.static.chello.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	PTR	81-18-218-157.static.chello.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
81.18.218.159	PTR	81-18-218-159.static.chello.pl
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
81.18.218.196	A+PTR	81-18-218-196.static.chello.pl
81.18.218.214	A	mail.gmpolska.pl
81.18.218.221	PTR	81-18-218-221.static.chello.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
81.18.219.6	PTR	kubus.omss.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+PTR	81-18-219-118.static.chello.pl
81.18.219.118	A	dns2.inteko.com.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