Robtex

Up: 213.87.104.0/21
Can't show all results, try to descend to a more specific CIDR
Down left: 213.87.104.0/23
Down right: 213.87.106.0/23
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
213.87.104.0	PTR	host.mrdv-8.mtsnet.ru
213.87.104.6	A	mail.adlab.ru
213.87.104.7	PTR	host.mrdv-8.mtsnet.ru
213.87.104.7	A	cs2.adlab.ru
213.87.104.12	A+PTR	mail.aacprogress.ru
213.87.104.12	A	mx2.aacprogress.ru
213.87.104.13	PTR	host.mrdv-8.mtsnet.ru
213.87.104.13	A	ns2.arswater.ru
213.87.104.18	A+PTR	relay4.516.ru
213.87.104.18	A	mail4.newr.co.nz
213.87.104.18	A	mail4.newr.ru
213.87.104.20	PTR	host.mrdv-8.mtsnet.ru
213.87.104.20	A	516.ru
213.87.104.20	A	www.market.516.ru
213.87.104.25	PTR	host.mrdv-8.mtsnet.ru
213.87.104.25	A	ns4.newr.ru
213.87.104.25	A	ns4.maksimov.co.nz
213.87.104.50	PTR	host.mrdv-8.mtsnet.ru
213.87.104.64	A	mail.ulrz.ru
213.87.104.64	A	ulrz.ru
213.87.104.67	PTR	host.mrdv-8.mtsnet.ru
213.87.104.67	A	www.tokyo-bar.ru
213.87.104.73	A	ns1.primtaxi.com
213.87.104.80	A	mail1.mirupak.ru
213.87.104.87	PTR	host.mrdv-8.mtsnet.ru
213.87.104.87	A	izumrud-oao.ru
213.87.104.91	A	obruch.com
213.87.104.91	A	www.obruch.com
213.87.104.108	A+PTR	mail.pdvpk.ru
213.87.104.108	A	mail.germes-ufa.ru
213.87.104.117	A	asl25.ru
213.87.104.124	PTR	host.mrdv-8.mtsnet.ru
213.87.104.124	A	mail.zip-log.ru
213.87.104.124	A	mail.zip-log.com
213.87.104.155	PTR	host.mrdv-8.mtsnet.ru
213.87.104.155	A	www.pgpb.ru
213.87.104.155	A	pgpb.ru
213.87.104.156	PTR	host.mrdv-8.mtsnet.ru
213.87.104.156	A	ns.pgpb.ru
213.87.104.169	PTR	host.mrdv-8.mtsnet.ru
213.87.104.174	A+PTR	mail.expolesdv.ru
213.87.104.174	A	mail.expolinedv.ru
213.87.104.199	A+PTR	mls2.abro-ind.ru
213.87.104.218	PTR	mts218.vostokcement.ru
213.87.104.218	A	ns3.spasskcem.ru
213.87.104.218	A	mts.auroracinema.ru
213.87.104.220	PTR	mts220.vostokcement.ru
213.87.104.220	A	spasskdal.ru
213.87.104.220	A	dvcement.ru
213.87.104.236	A	artem2.aptrade.ru
213.87.105.160	A+PTR	gw-mts.pacnet.ru
213.87.105.172	A	mail.amn-computers.ru
213.87.105.184	A	kam.aptrade.ru
213.87.105.187	A	mts.kamtex2.ru
213.87.105.197	A+PTR	kampivo.ru
213.87.105.197	A	mx1.kampivo.ru
213.87.105.198	PTR	zmail.pkvoda.ru
213.87.105.198	A	zmail1.pkvoda.ru
213.87.105.218	A	mail.city-pages.info
213.87.106.4	A+PTR	mx2.crt.ru
213.87.106.43	A+PTR	kega.ru
213.87.106.43	A	mail.kega.ru
213.87.106.43	A	ns1.kega.ru
213.87.106.51	A+PTR	mail.csdalzavod.ru
213.87.106.57	A+PTR	mail.ardis-co.ru
213.87.106.68	A+PTR	mx1.mailcenter.ru
213.87.106.69	A	mail.mailcenter.ru
213.87.106.72	A	ns-master1.ipvx.ru
213.87.106.72	A	ns-master.ipvx.ru
213.87.106.76	A	www.2525.ru
213.87.106.76	A	2525.ru
213.87.106.76	A	vladnet.ru
213.87.106.81	A	xn--80ajctkklu.xn--p1ai
213.87.106.81	A	xn----dtbfca3abghbvnh0al.xn--p1ai
213.87.106.81	A	xn----dtbfcelqvmuog.xn--p1ai
213.87.106.151	PTR	baikalvlad.ru
213.87.106.151	A	www.baikalvlad.ru
213.87.106.151	A	mail2.baikalvlad.ru
213.87.106.152	PTR	baikalvlad.ru
213.87.106.152	A	www.baikalvlad.ru
213.87.106.152	A	mail3.baikalvlad.ru
213.87.106.154	A+PTR	mail2.baikalvl.ru
213.87.106.155	A+PTR	mail4.baikalvl.ru
213.87.106.191	PTR	mirny.alrosa-sec.ru
213.87.106.202	A+PTR	gw.yakutproekt.ru
213.87.106.202	A	mx.yakutproekt.ru
213.87.106.202	A	smtp.yakutproekt.ru