Robtex

Up: 87.237.32.0/20
Can't show all results, try to descend to a more specific CIDR
Down left: 87.237.40.0/22
Down right: 87.237.44.0/22
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
87.237.40.2	PTR	mail.ascorus.ru
87.237.40.10	A+PTR	iasgate.mslink.ru
87.237.40.42	PTR	apr-constanta.ru
87.237.40.82	A+PTR	niiks.com
87.237.40.98	A+PTR	ics5.mslink.ru
87.237.40.98	A	www.mofoms.ru
87.237.40.98	A	mofoms.ru
87.237.40.99	A	lists.ics.travel
87.237.40.100	PTR	ics7.mslink.ru
87.237.40.106	A+PTR	mail.bauservice.ru
87.237.40.106	A+PTR	mail.tesser.ru
87.237.40.109	A+PTR	mx1.bauservice.ru
87.237.40.118	A	linux.ackerbell.com
87.237.40.124	A+PTR	smtp.bms.ru
87.237.40.144	A	transcont.ru
87.237.40.144	A	www.transcont.ru
87.237.40.146	A+PTR	excnt.transcont.ru
87.237.40.176	PTR	mail.breakth.ru
87.237.40.193	A	router7204.mslink.ru
87.237.40.194	A+PTR	ns2.mslink.ru
87.237.40.194	A+PTR	ogorodny.mslink.ru
87.237.40.242	A	setun.mslink.ru
87.237.40.243	PTR	mail.exclusiv.ru
87.237.40.243	PTR	mail.iristel.ru
87.237.40.243	A	vills.mslink.ru
87.237.41.2	PTR	snab.arkor.ru
87.237.41.2	PTR	xserver.arkor.ru
87.237.41.18	A+PTR	mofoms.ru
87.237.41.21	A+PTR	mail.mofoms.ru
87.237.41.30	PTR	mail.mofoms.ru
87.237.41.66	PTR	mail1.dalva.ru
87.237.41.86	PTR	mtk-era.ru
87.237.41.86	A+PTR	mail.mtk-era.ru
87.237.41.86	A	era.su
87.237.41.115	A+PTR	ics-k1.mslink.ru
87.237.41.155	PTR	2kaudit.ru
87.237.41.195	PTR	relay00.advc.ru
87.237.41.195	A	relay01.adv.consulting
87.237.41.195	A	ftp.advc.ru
87.237.41.220	A	ns1.atclearning.ru
87.237.41.220	A	ns1.svetlana-sochi.ru
87.237.41.220	A	ns1.advc.ru
87.237.41.226	A+PTR	xmail.maildisk.ru
87.237.41.226	A	xmail.decart.caravan.ru
87.237.41.226	A	decart.caravan.ru
87.237.41.227	PTR	smtp.int-edu.ru
87.237.41.233	A	lavka-int.com
87.237.41.234	A	audiovisual.ru
87.237.41.235	A	xn--e1aaejahilkjl1ac0j.xn--p1ai
87.237.41.235	A	museumpro.ru
87.237.42.16	A+PTR	post.van-market.ru
87.237.42.16	A	post.van-market.com
87.237.42.31	A	ns2.pdsk.su
87.237.42.40	A	mail.afin.su
87.237.42.40	A	afin.su
87.237.42.67	A	ns01.izobond.ru
87.237.42.76	PTR	mail.profbuh.ru
87.237.42.81	PTR	mail.2kaudit.ru
87.237.42.173	A+PTR	ns0.gorbushka.ru
87.237.42.174	A+PTR	ns1.gorbushka.ru
87.237.42.174	A	mx1.gorbushka.ru
87.237.42.180	A	indewa.com
87.237.42.180	A	mail.indewa.ru
87.237.42.180	A	virthosting.indewa.ru
87.237.42.181	PTR	mx.newartmart.ru
87.237.42.181	A	theatermanager.ru
87.237.42.190	PTR	mail.stkbank.ru
87.237.42.211	A	forward.ccl-kontur.ru
87.237.42.228	A	mail.niiks.com
87.237.42.234	PTR	mx.alfaprint.ru
87.237.42.234	A	www.ossys.ru
87.237.42.234	A	ossys.ru
87.237.42.238	A+PTR	mail.sqlaw.ru
87.237.43.34	A+PTR	ns.bank-peresvet.ru
87.237.43.34	A	ns.xn----7sbcgoab9a0awmnp.xn--p1ai
87.237.43.50	A	grad-info.com
87.237.43.50	A	sro-nasgage.ru
87.237.43.50	A	souz-sro.org
87.237.43.66	PTR	ntsomz.ru
87.237.43.66	A	mail.kargonet.ru
87.237.43.67	PTR	ntsomz.ru
87.237.43.68	PTR	ntsomz.ru
87.237.43.70	A	catalog.ntsomz.ru
87.237.43.72	PTR	ntsomz.ru
87.237.43.73	PTR	ntsomz.ru
87.237.43.73	A	ns2.ntsomz.ru
87.237.43.74	PTR	ntsomz.ru
87.237.43.75	PTR	ntsomz.ru
87.237.43.80	PTR	ntsomz.ru
87.237.43.81	PTR	ntsomz.ru
87.237.43.82	PTR	ntsomz.ru
87.237.43.83	PTR	ntsomz.ru
87.237.43.88	PTR	ntsomz.ru
87.237.43.89	PTR	ntsomz.ru
87.237.43.90	PTR	ntsomz.ru
87.237.43.91	PTR	ntsomz.ru
87.237.43.94	A	koronas.ntsomz.ru
87.237.43.135	A+PTR	subscribe.runamail.ru
87.237.43.140	PTR	www.v2b.ru
87.237.43.140	A	v2b.ru
87.237.43.143	A	t-sale.ru
87.237.43.143	A	tsale.ru
87.237.43.143	A	www.runa.ru
87.237.43.202	PTR	mail.korolevpharm.ru
87.237.43.210	PTR	mail.blackplatinum.ru
87.237.43.210	PTR	mail.santa-bremor.ru
87.237.43.210	PTR	mail.santabremor.ru
87.237.43.227	PTR	ns1.bacint.ru
87.237.43.239	A	owa3.bacint.ru
87.237.43.249	PTR	taurus.batov.ru
87.237.44.66	PTR	mail2.terrhq.ru
87.237.44.74	A+PTR	mail.mslink.ru
87.237.44.74	A+PTR	ns1.mslink.ru
87.237.44.74	A	mslink.ru
87.237.44.130	A+PTR	mx01.cvetoprom.ru
87.237.44.130	A+PTR	mx01.iti.su
87.237.44.130	A	mx01.silwerhof.ru
87.237.44.238	PTR	kto-is-kto.ru
87.237.44.238	PTR	nostalgia-pro.ru
87.237.44.238	PTR	nostalgiatv.ru
87.237.44.242	A	poplar.ru
87.237.45.6	PTR	mail.inka.su
87.237.45.26	A+PTR	mail.maxlevel.ru
87.237.45.26	PTR	mx1.maxlevel.ru
87.237.45.36	PTR	mxb.taxcom.ru
87.237.45.66	A	mail.perlovka.ru
87.237.45.66	A	pzeo.east.ru
87.237.45.70	PTR	mail.atech.ru
87.237.45.75	PTR	exchange.ostrov.ru
87.237.45.75	A	mail2.lsp-metall.ru
87.237.45.122	A	mail2.ostrov.com
87.237.45.122	A	mail.ostrov.com
87.237.45.154	A+PTR	smtp.tka.ru
87.237.45.154	A	mx.tka.ru
87.237.45.156	A	www.tka.ru
87.237.45.162	PTR	mail.santa-bremor.ru
87.237.45.162	PTR	mail.santabremor.ru
87.237.45.194	A+PTR	mail.itcl.ru
87.237.45.195	A	mail801.itcl.ru
87.237.45.200	A	mx1.itcl.ru
87.237.47.10	PTR	pochta.vivat-v.ru
87.237.47.12	PTR	mail.artencia.com
87.237.47.12	PTR	mail.artencia.ru
87.237.47.12	PTR	mail.mosholod-9.ru
87.237.47.46	PTR	cnkh.ru
87.237.47.46	PTR	print-ff.ru
87.237.47.211	PTR	mail.bms.ru
87.237.47.211	A	bms.ru