Robtex

Up: 217.29.50.0/23
Can't show all results, try to descend to a more specific CIDR
Down left: 217.29.51.0/25
Down right: 217.29.51.128/25
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
217.29.51.3	A	ns1.oakdead.com
217.29.51.3	A	ns2.oakdead.com
217.29.51.6	A	atomic-russia.ru
217.29.51.6	A	vam-teplee.ru
217.29.51.7	PTR	mail.dimti.ru
217.29.51.7	A	salvoterra.ru
217.29.51.7	A	www.salvoterra.ru
217.29.51.8	A	ns1.promarketclub.su
217.29.51.8	A	ns1.onlinefast.su
217.29.51.8	A	ns1.tradewebmarket.su
217.29.51.10	PTR	tnet.superservers.ru
217.29.51.10	A	oakdead.com
217.29.51.11	A+PTR	mx1.lifeventureclub.nl
217.29.51.11	A	ns1.lifeventureclubnews.com
217.29.51.12	A+PTR	mx2.lifeventureclub.nl
217.29.51.12	A	ns2.lifeventureclubnews.com
217.29.51.15	A	megaprom.info
217.29.51.15	A	dehost.ru
217.29.51.15	A	montagtrub.ru
217.29.51.16	A+PTR	catiagen.com
217.29.51.16	A	mail.catiagen.com
217.29.51.16	A	ns2.catiagen.com
217.29.51.28	A+PTR	tolidea.com
217.29.51.28	A	ns2.tolidea.com
217.29.51.28	A	mail.tolidea.com
217.29.51.30	PTR	tnet.superservers.ru
217.29.51.34	A	ns2.it-express.ru
217.29.51.38	PTR	mh.it-express.ru
217.29.51.38	A	mr.it-express.ru
217.29.51.38	A	mailf.transnet.ru
217.29.51.40	A	it4b.ru
217.29.51.41	A	mail1.it-express.ru
217.29.51.46	A+PTR	mx1.itinvest.ru
217.29.51.47	A	mx2.itinvest.ru
217.29.51.48	A	valentin-jewellery.ru
217.29.51.48	A	valentin-jewellery.com
217.29.51.51	A	www.it-express.ru
217.29.51.51	A	it-express.ru
217.29.51.56	A	www.it-express.ru
217.29.51.68	A	ns2.hotelsadmin.ru
217.29.51.68	A	ns2.th.net.ru
217.29.51.68	A	ns2.hotelsdemo.ru
217.29.51.69	PTR	lsp4.f.ls1.ru
217.29.51.69	A	openvpn3.lbc.ru
217.29.51.70	PTR	lsp5.f.ls1.ru
217.29.51.70	A	mail.xn--90aydijdd0f.xn--p1ai
217.29.51.70	A	mail.liana-tur.ru
217.29.51.82	A	callisto.katushataxi.com
217.29.51.82	A	katushataxi.com
217.29.51.90	A	ns1.avetel.ru
217.29.51.92	A+PTR	avetel.ru
217.29.51.92	A	mail.avetel.ru
217.29.51.92	A	meditacio.ru
217.29.51.98	PTR	wb01.kithost.ru
217.29.51.98	A	ig-ltd.com
217.29.51.98	A	mail.xn--80axbogg3duc.xn--p1ai
217.29.51.106	A	tvfaq.ru
217.29.51.106	A	www.tvfaq.ru
217.29.51.106	A	zdevelopment.ru
217.29.51.107	PTR	be2-1.makeidea.ru
217.29.51.107	A	aeroflotkids.ru
217.29.51.107	A	fashiondoggy.ru
217.29.51.108	PTR	mdp2012.ru
217.29.51.108	A	timeforlunch.ru
217.29.51.109	PTR	smartnews.ru
217.29.51.109	A	smartnews-pfo.ru
217.29.51.109	A	smartnews38.ru
217.29.51.110	A	www.alebedev.ru
217.29.51.110	A	www.alebedev.org
217.29.51.110	A	alebedev.ru
217.29.51.114	PTR	mail.iqbuzz.ru
217.29.51.123	A	smartnews-sibir.ru
217.29.51.130	PTR	mail.allglasses.ru
217.29.51.130	PTR	mail.solution4business.ru
217.29.51.130	A	xn--80a2ace.xn--p1ai
217.29.51.131	A	odkb-info.org
217.29.51.131	A	www.odkb-info.org
217.29.51.131	A	moy-doktor.org
217.29.51.132	A	dom-za-rubezhom.ru
217.29.51.135	A	vitakrasota.ru
217.29.51.135	A	azimut-unit.ru
217.29.51.136	A	msch154.ru
217.29.51.136	A	www.odkb-csto.org
217.29.51.136	A	www.msch154.ru
217.29.51.137	A	ronix-systems.ru
217.29.51.137	A	www.ronix.ru
217.29.51.137	A	allglasses.ru
217.29.51.140	A+PTR	mail.ventu.ru
217.29.51.140	A	mail.odkb-csto.org
217.29.51.147	A+PTR	rebenokideti.ru
217.29.51.148	A+PTR	klen-2.ru
217.29.51.149	A+PTR	km63.ru
217.29.51.150	A+PTR	allinstructyt.ru
217.29.51.150	A	komatsu-sklad.ru
217.29.51.172	A	solo-chel.ru
217.29.51.172	A	territoryofrest.ru
217.29.51.172	A	www.ariadna-tur.com
217.29.51.179	PTR	mx3.gamma-center.ru
217.29.51.179	A	ns2.regiweb.ru
217.29.51.182	A	inel.ru
217.29.51.182	A	www.cougarshop.ru
217.29.51.182	A	i2b.ru
217.29.51.195	A	location.3s-t.ru
217.29.51.227	PTR	mx2.vmkros.ru
217.29.51.227	A	mail.vmkros.ru
217.29.51.230	A	mx.vmkros.ru
217.29.51.232	A+PTR	mx3.vmkros.ru
217.29.51.241	A	www.0710.ru
217.29.51.241	A	vmkros.ru
217.29.51.241	A	wmcrus.com
217.29.51.242	A	vmk1.com