Robtex

Up: 81.18.128.0/18
Can't show all results, try to descend to a more specific CIDR
Down left: 81.18.128.0/20
Down right: 81.18.144.0/20
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
81.18.128.1	PTR	10ge-core-nn.ttknn.net
81.18.128.5	PTR	10ge-core-nn.ttknn.net
81.18.128.6	A	pppoe-router.ttknn.net
81.18.128.33	PTR	10ge-core-nn.ttknn.net
81.18.128.58	A	ns2.sarov-online.ru
81.18.128.58	A	www.xn--80ae9ahd.xn--p1ai
81.18.128.69	PTR	10ge-core-nn.ttknn.net
81.18.128.97	PTR	10ge-core-nn.ttknn.net
81.18.128.101	PTR	10ge-core-nn.ttknn.net
81.18.128.122	A	interautonn.ru
81.18.128.122	A	metrodev.ru
81.18.128.122	A	pzhm.ru
81.18.128.186	A	sip.ttknn.net
81.18.128.193	PTR	10ge-core-nn.ttknn.net
81.18.128.197	PTR	10ge-core-nn.ttknn.net
81.18.128.213	A	games.nnov.net
81.18.128.226	PTR	rtu-rezerv.ttknn.net
81.18.128.226	A	nnov.net
81.18.128.226	A	shico.ttknn.net
81.18.128.233	A	reist.ttknn.net
81.18.128.239	A	dell5.ttknn.net
81.18.129.2	A	vs-template.ttknn.net
81.18.129.3	A+PTR	vs-test.ttknn.net
81.18.129.4	PTR	jabber.nnov.net
81.18.129.4	A	vs-public.ttknn.net
81.18.129.4	A	irc.nnov.net
81.18.129.5	PTR	vs-pages.ttknn.net
81.18.129.32	A+PTR	vs-vsd.ttknn.net
81.18.129.62	PTR	10ge-core-nn.ttknn.net
81.18.129.65	A+PTR	dell2.ttknn.net
81.18.129.66	A+PTR	ftp.nnov.net
81.18.129.67	A+PTR	vs-pages2.ttknn.net
81.18.129.67	A	test.ttknn.net
81.18.129.68	PTR	free.ttknn.net
81.18.129.97	A+PTR	dell3.ttknn.net
81.18.129.98	PTR	vs-pages3.ttknn.net
81.18.129.98	A	dushevno.net
81.18.129.98	A	sviazist.nnov.ru
81.18.129.131	A+PTR	dodo.ttknn.net
81.18.129.151	A	ns2.nnov.net
81.18.129.151	A	aq.ttknn.net
81.18.129.151	A	ns2.mailnn.ru
81.18.129.193	PTR	10ge-core-nn.ttknn.net
81.18.129.195	PTR	vm-markin.ttknn.net
81.18.129.195	A	support-it.pro
81.18.129.204	A	topoltele.com
81.18.129.209	A	gw-dell-contact.nnov.net
81.18.129.210	A	contact.nnov.net
81.18.129.225	PTR	10ge-core-nn.ttknn.net
81.18.129.250	A	ibm2-nat.ttknn.net
81.18.129.251	A	ibm2.ttknn.net
81.18.129.252	A	ns1.mailnn.ru
81.18.129.252	A	ns1.ttknn.net
81.18.130.1	A	ttknn-tmk.telecom-mk.ru
81.18.130.2	A+PTR	tmk-ttknn.telecom-mk.ru
81.18.130.5	A+PTR	tmk-vve.telecom-mk.ru
81.18.130.9	A	tmk-rudzro01.telecom-mk.ru
81.18.130.129	A	grw.telecom-mk.ru
81.18.130.131	PTR	ext.grw.ru
81.18.130.132	A+PTR	mailer.grw.ru
81.18.130.165	A	ups.telecom-mk.ru
81.18.130.217	A+PTR	tmk1.telecom-mk.ru
81.18.130.217	A	noc.telecom-mk.ru
81.18.130.242	A+PTR	adm.telecom-mk.ru
81.18.130.251	A+PTR	tmk2.telecom-mk.ru
81.18.130.252	A+PTR	ns.telecom-mk.ru
81.18.130.252	A	tmk-serv1.telecom-mk.ru
81.18.131.195	A+PTR	s0109.russpole.com
81.18.132.220	A	ns.lukonin.net
81.18.133.33	PTR	10ge-core-nn.ttknn.net
81.18.133.35	PTR	mail.tersy-m.ru
81.18.133.65	PTR	10ge-core-nn.ttknn.net
81.18.133.92	A	mail2.sbbank.ru
81.18.133.97	PTR	10ge-core-nn.ttknn.net
81.18.133.117	A	mail.tset.pro
81.18.133.118	A	ns.tset.pro
81.18.133.118	A	transset.ru
81.18.133.118	A	ns.transset.ru
81.18.133.161	PTR	free.ttknn.net
81.18.133.194	A	mail.pimunn.net
81.18.133.241	PTR	10ge-core-nn.ttknn.net
81.18.134.50	A	gw.vodokanal-nn.ru
81.18.134.130	PTR	sintek-nn.ru
81.18.134.133	A	xn----7sbkljbaam6acc1bf.xn--p1ai
81.18.135.1	PTR	10ge-core-nn.ttknn.net
81.18.135.5	PTR	10ge-core-nn.ttknn.net
81.18.135.20	A	mx2.bplab.com
81.18.135.38	PTR	connectnn.ru
81.18.135.38	A	biabor.ru
81.18.135.64	PTR	10ge-core-nn.ttknn.net
81.18.135.70	A	sputnik.nrl.ru
81.18.135.84	A	i8.gipernn.ru
81.18.135.84	A	im.gipernn.ru
81.18.135.84	A	www.banknn.ru
81.18.135.98	A+PTR	mail.evan.ru
81.18.135.122	A	nnov.bcs.ru
81.18.135.133	PTR	10ge-core-nn.ttknn.net
81.18.135.154	A	mail.winny-nn.ru
81.18.135.154	A	winny-nn.ru
81.18.135.154	A	mail.iegroup.ru
81.18.135.165	PTR	10ge-core-nn.ttknn.net
81.18.135.166	A	syst-nn.ru
81.18.135.166	A	mail.syst-nn.ru
81.18.135.178	A	ns.kovrov.net
81.18.135.193	PTR	10ge-core-nn.ttknn.net
81.18.135.201	PTR	10ge-core-nn.ttknn.net
81.18.135.225	PTR	10ge-core-nn.ttknn.net
81.18.135.229	PTR	10ge-core-nn.ttknn.net
81.18.136.69	PTR	10ge-core-nn.ttknn.net
81.18.136.90	A	sarov.mobi
81.18.136.90	A	ns1.sarov-online.ru
81.18.136.90	A	www.sarov.com
81.18.136.105	PTR	10ge-core-nn.ttknn.net
81.18.136.114	A	mail.consultnn.ru
81.18.136.114	A	ns3.consultnn.ru
81.18.136.129	PTR	10ge-core-nn.ttknn.net
81.18.136.145	A	phdns2.solware.ma
81.18.136.155	A	phdns3.solware.ma
81.18.136.161	PTR	10ge-core-nn.ttknn.net
81.18.136.202	PTR	mail.el-ts.ru
81.18.136.205	PTR	10ge-core-nn.ttknn.net
81.18.136.206	A	mail.conceptprojects.ru
81.18.136.214	A	mail.kartelnn.ru
81.18.136.225	PTR	10ge-core-nn.ttknn.net
81.18.136.226	A	gate.volga-tv.ru
81.18.136.227	PTR	tk-volga.ttknn.net
81.18.136.227	A	mail-ext.volga-tv.ru
81.18.136.227	A	mail.volga-tv.ru
81.18.136.228	PTR	tk-volga.ttknn.net
81.18.136.228	A	ns2.volga-tv.ru
81.18.137.3	A+PTR	mr-mx02.mrsk-cp.ru
81.18.137.6	A+PTR	nn-mx02.nn.mrsk-cp.ru
81.18.137.6	A	ns.nn.mrsk-cp.ru
81.18.137.31	PTR	mrsk.ttknn.net
81.18.137.31	A	mail2.mrsk-cp.ru
81.18.137.32	PTR	mrsk.ttknn.net
81.18.137.45	PTR	mrsk.ttknn.net
81.18.137.81	A	gloscityhomes.com
81.18.137.200	A+PTR	mail.amz.ru
81.18.138.3	A+PTR	zmail.alidi.ru
81.18.138.7	A	mail2.alidi.ru
81.18.138.7	A	mail2.alidi.com
81.18.138.7	A	mail3.alidi.ru
81.18.138.130	PTR	mail.vniief.ru
81.18.138.131	PTR	ns.vniief.ru
81.18.138.132	PTR	nuke.vniief.ru
81.18.138.133	PTR	old.vniief.ru
81.18.138.255	PTR	broadcast-smallnets.ttknn.net
81.18.139.131	A+PTR	mail.oaoapz.com
81.18.139.131	A	fw.oaoapz.com
81.18.139.132	A+PTR	aoapz.com
81.18.139.132	A	www.oaoapz.com
81.18.141.98	PTR	98.dyn.nn.ttknn.net
81.18.141.98	A	ksmpr.insysnet.ru
81.18.141.102	PTR	102.dyn.nn.ttknn.net
81.18.141.102	A	ksmtec.insysnet.ru
81.18.141.110	A	libr.insysnet.ru
81.18.141.114	A	sb.insysnet.ru
81.18.141.130	PTR	130.dyn.nn.ttknn.net
81.18.141.130	A	ktelecom.insysnet.ru
81.18.141.163	A	nv.insysnet.ru
81.18.141.194	A	vgu.insysnet.ru
81.18.141.218	A	umc.insysnet.ru
81.18.143.2	PTR	2.dyn.3g.ttknn.net
81.18.143.10	PTR	10.dyn.3g.ttknn.net
81.18.143.11	A+PTR	buffalo.pfts.ru
81.18.143.33	A+PTR	nvfb-33.pfts.ru
81.18.143.33	A	nvfb33.pfts.ru
81.18.143.46	A	nvfb46.pfts.ru
81.18.143.46	A	nvfb-46.pfts.ru
81.18.144.82	A	teamray.ru
81.18.145.1	PTR	kodeks.kirov.ru
81.18.148.1	PTR	10ge-core-nn.ttknn.net
81.18.148.2	PTR	dvnhm.ttknn.net
81.18.148.37	PTR	10ge-core-nn.ttknn.net
81.18.148.54	A	mail.lihachnn.ru
81.18.148.104	PTR	mx.airportnn.ru
81.18.148.114	A	dvnhm.ttknn.net
81.18.148.114	A	mail.nnm-nn.ru
81.18.148.123	A	mail.st-nn.ru
81.18.148.129	PTR	10ge-core-nn.ttknn.net
81.18.148.133	PTR	10ge-core-nn.ttknn.net
81.18.148.146	A	www.forum.rusbsd.org
81.18.148.146	A	www.melkor.ru
81.18.148.146	A	melkor.su
81.18.148.161	PTR	10ge-core-nn.ttknn.net
81.18.148.174	PTR	telkom.ttknn.net
81.18.148.193	PTR	10ge-core-nn.ttknn.net
81.18.148.206	PTR	mail.forusbank.ru
81.18.148.206	A	mx2.forusbank.ru
81.18.148.225	PTR	10ge-core-nn.ttknn.net
81.18.150.122	A	kok.su
81.18.150.122	A	*.orgazmik.ru
81.18.150.122	A	www.miniban.ru
81.18.152.1	PTR	10ge-core-nn.ttknn.net
81.18.152.2	PTR	sakses.ttknn.net
81.18.152.2	A	adm.success-nn.ru
81.18.152.2	A	gw1.s-stroy.ru
81.18.152.4	PTR	sakses.ttknn.net
81.18.152.69	PTR	10ge-core-nn.ttknn.net
81.18.152.92	A	diversia.ru
81.18.152.105	PTR	10ge-core-nn.ttknn.net
81.18.152.132	PTR	eltp.ttknn.net
81.18.152.144	A	etprf.org
81.18.152.144	A	ns2.ieservice.ru
81.18.152.144	A	ns1.ieservice.ru
81.18.152.160	PTR	eltp.ttknn.net
81.18.152.161	PTR	eltp.ttknn.net
81.18.152.162	PTR	eltp.ttknn.net
81.18.152.163	PTR	eltp.ttknn.net
81.18.152.193	PTR	fonecom.ttknn.net
81.18.152.237	PTR	10ge-core-nn.ttknn.net
81.18.156.28	A	www.herndl.org
81.18.156.246	A+PTR	mail.part-kom.ru
81.18.157.26	A	inktorg.ru
81.18.157.46	A	sturm-nn.ru
81.18.157.249	A	devana.jbr.su