Robtex

Up: 81.222.64.0/18
Can't show all results, try to descend to a more specific CIDR
Down left: 81.222.64.0/20
Down right: 81.222.80.0/20
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
81.222.64.10	A	ds701-002.eltel.net
81.222.64.26	A+PTR	files3.showzones.com
81.222.64.26	PTR	pics3.showzones.com
81.222.64.26	PTR	files3.pokazuha.ru
81.222.64.34	PTR	mail.retn.net
81.222.64.34	PTR	ns2.retn.net
81.222.64.34	PTR	slon.retn.net
81.222.64.35	A	www.retnnet.ru
81.222.64.50	PTR	ds701-007.retnl.net
81.222.64.50	A	ds701-007.eltel.net
81.222.64.76	PTR	mail.fpclub.eu
81.222.64.90	A	ds701-009.eltel.net
81.222.64.162	A	kot162.subscribe.ru
81.222.64.163	A	kot163.subscribe.ru
81.222.64.164	A+PTR	kot164.subscribe.ru
81.222.64.165	A	kot165.subscribe.ru
81.222.80.2	PTR	bill.stnw.ru
81.222.80.2	A+PTR	ns1.stnw.ru
81.222.80.2	A	www.stnw.ru
81.222.80.61	A	ns4.itd.center
81.222.80.61	A	ns2.it-director.it
81.222.80.61	A	ns2.itd.center
81.222.80.66	PTR	mail.slotex.ru
81.222.80.68	A	ruvinil.spb.ru
81.222.80.68	A	3365559.ru
81.222.80.68	A	*.ruvinil.com
81.222.80.101	A	mail1.streetartmuseum.ru
81.222.80.101	A	mail2.sloplast.ru
81.222.80.101	A	mail2.captainspb.com
81.222.80.131	PTR	expert.spb.ru
81.222.80.131	A	mx.expert.spb.ru
81.222.80.163	PTR	ns.bxk.su
81.222.80.194	A+PTR	mail.lenair.ru
81.222.80.203	A	mail.flotenk.ru
81.222.80.203	A	mail.general-c.ru
81.222.80.203	A	mail.flotenk.kz
81.222.80.233	A	rbrc.ru
81.222.80.233	A	soundhistory.ru
81.222.80.233	A	mail.rbrc.ru
81.222.81.18	A	mail.urkazus.ru
81.222.81.58	A	mail.kvsspb.ru
81.222.81.67	PTR	81-222-81-67.stnw.ru
81.222.81.67	A	ruhtra.ru
81.222.81.67	A	cc-a.ru
81.222.81.100	A	office.gasturbo.ru
81.222.81.101	A	litecore.ru
81.222.81.123	PTR	exled03.continent.ru
81.222.81.123	A	msled.continentexpress.kz
81.222.81.123	A	ms0.btmanagement.ru
81.222.81.130	PTR	mail.argon-spb.ru
81.222.81.169	A+PTR	mail.kartontol.ru
81.222.81.187	A+PTR	gw.el-co.spb.ru
81.222.81.230	A+PTR	msrv.ladogaspb.ru
81.222.82.37	A	sinstr.sinstr.ru
81.222.82.37	A	srv9.sinstr.ru
81.222.82.46	A	testkpk.ru
81.222.82.62	A	uran.afo.sp.ru
81.222.82.131	PTR	technix.ru
81.222.82.132	A	hellmann.su
81.222.82.142	A	spb.efko-trade.ru
81.222.82.146	A	prmeh.ru
81.222.82.146	A	7184090.ru
81.222.82.170	PTR	kosmopolis.ru
81.222.82.204	A	zaosiz.ru
81.222.82.205	PTR	relay.inteltech.ru
81.222.82.205	A	relay.zaosiz.ru
81.222.82.206	A	ntc1.inteltech.ru
81.222.82.236	A	hikvision.ru
81.222.82.236	A	xn--b1aiebbiz1d.xn--p1ai
81.222.82.236	A	www.hi.watch
81.222.82.242	PTR	sltrade.ru
81.222.83.2	PTR	81-222-83-2.stnw.ru.83.222.81.in-addr.arpa
81.222.83.10	A	gw.cnord.ru
81.222.83.10	A	ext-balance.cnord.ru
81.222.83.10	A	fidel.cnord.ru
81.222.83.34	PTR	81-222-83-34.stnw.ru
81.222.83.34	A	mail.ns-alco.com
81.222.83.53	A	mail.dd-karjala.ru
81.222.83.57	A	mail.ekspera.ru
81.222.83.57	A	ns.ekspera.ru
81.222.83.66	PTR	mail.darex.spb.ru
81.222.83.90	A	ns.camenda.com
81.222.83.90	A	gipersfera.ru
81.222.83.90	A	*.gipersfera.com
81.222.83.100	A	mx.gipersfera.com
81.222.83.100	A	omta.su
81.222.83.100	A	cos-fi.com
81.222.83.118	PTR	mail.gis-innovations.ru
81.222.84.2	A+PTR	ns2.stnw.ru
81.222.84.30	A	mail.service-estate.ru
81.222.84.109	A	mail.ergolines.ru
81.222.84.114	A	mail.oil-spb.ru
81.222.84.140	A	mail.roadlines.ru
81.222.84.173	A+PTR	mail.kaskadspb.ru
81.222.84.196	A+PTR	p.puhto.ru
81.222.85.2	A+PTR	bsd.algo-spb.com
81.222.85.2	A	www.algo-spb.com
81.222.85.2	A	algo-spb.com
81.222.85.94	A	mail2.yeint.ru
81.222.86.35	A	mail.translator-world.com
81.222.86.50	A	mail.inn-pro.ru
81.222.86.98	A+PTR	mail.mz-yanino.ru
81.222.86.98	A	mail3.mz-yanino.ru
81.222.86.99	A	mail4.mz-yanino.ru
81.222.86.100	A	mail5.mz-yanino.ru
81.222.87.5	A	ns2.ipi-manager.ru
81.222.87.6	A	bigrobotprojects.ru
81.222.87.35	A+PTR	main.office.ohlert.spb.ru
81.222.87.37	A	nks.su
81.222.87.38	A	1c-biblioteka.ru
81.222.87.46	A	bk-logistic.ru
81.222.87.85	PTR	mail.okhta.spb.ru
81.222.87.85	A	second.okhta.spb.ru
81.222.87.101	A	mail2.dalog.ru
81.222.87.101	A	mail2.eclever.ru
81.222.87.133	A	mail.inteltech.ru
81.222.87.134	A	www.inteltech.ru
81.222.87.134	A	inteltech.ru
81.222.87.140	A	voip.omega-spb.ru
81.222.87.168	A+PTR	mx1.otk.spb.ru
81.222.87.195	PTR	ns.bxk.su
81.222.87.196	A+PTR	trade-meat.su
81.222.87.196	A+PTR	proxy.bxk.su
81.222.87.198	PTR	relay.bxk.su
81.222.87.202	A+PTR	post.npksppspb.ru
81.222.87.210	A	omta.su
81.222.87.210	A	ns2.camenda.com
81.222.87.226	A+PTR	mail.abzdorstroy.ru
81.222.87.243	PTR	mail.ectaco.ru
81.222.87.244	PTR	mserver.ectaco.ru
81.222.88.35	PTR	81-222-88-35.stnw.ru
81.222.88.43	A	gsmspb.net
81.222.88.43	A	newmail.gsmspb.net
81.222.88.44	A	mail.neologica.ru
81.222.88.67	PTR	81-222-88-67.stnw.ru
81.222.88.87	A	mx1.anagaz.su
81.222.88.130	A	nncloud.ru
81.222.88.150	A	mail.ingria-park.ru
81.222.88.156	A	mail.tssolution.ru
81.222.88.162	A	ns1.xn--80aeel0c.xn--p1ai
81.222.88.162	A	ns1.omega-spb.ru
81.222.88.162	A	ns1.nks.su
81.222.88.250	A	m2.ectaco.com