Robtex

Up: 213.147.0.0/18
Can't show all results, try to descend to a more specific CIDR
Down left: 213.147.32.0/20
Down right: 213.147.48.0/20
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
213.147.32.2	PTR	213147322.online.ptt.net
213.147.32.66	A	ns1.vdovin.net
213.147.32.95	A	mail.petri-frischkaese.de
213.147.32.95	A	mail.lippen-blaeschen.de
213.147.32.95	A	mail.printattack.com
213.147.32.192	PTR	21314732192.online.ptt.net
213.147.33.50	A	mx.policvet.ru
213.147.33.128	PTR	21314733128.online.ptt.net
213.147.33.208	PTR	21314733208.online.ptt.net
213.147.34.112	PTR	21314734112.online.ptt.net
213.147.34.195	PTR	21314734195.online.ptt.net
213.147.34.214	A	mail.next.ru
213.147.35.22	PTR	bioclean.ru
213.147.35.50	PTR	mx.marcos.ru
213.147.35.74	A	213.147.35.74.in-addr.mtu.ru
213.147.35.122	PTR	mx.ecoen.ru
213.147.35.155	PTR	mail.vokrugsveta.ru
213.147.35.181	PTR	alligator.ru
213.147.35.230	PTR	mx2.inlife.ru
213.147.35.243	PTR	mail.gvsu.ru
213.147.35.243	A	ns2.instation.su
213.147.37.6	PTR	213147376.online.ptt.net
213.147.37.32	PTR	2131473732.online.ptt.net
213.147.37.35	PTR	mail.higis.ru
213.147.37.38	A+PTR	ns.higis.ru
213.147.37.159	PTR	21314737159.online.ptt.net
213.147.37.164	PTR	mx.ipg.ru
213.147.37.176	PTR	21314737176.online.ptt.net
213.147.37.195	PTR	21314737195.online.ptt.net
213.147.39.2	PTR	213147392.online.ptt.net
213.147.39.20	A	gw.ptc.ru
213.147.39.32	PTR	2131473932.online.ptt.net
213.147.39.34	PTR	inform-edinstvo.ru
213.147.39.99	PTR	2131473999.online.ptt.net
213.147.39.130	PTR	21314739130.online.ptt.net
213.147.39.195	PTR	21314739195.online.ptt.net
213.147.39.226	PTR	mail.it-partner.ru
213.147.41.210	PTR	mail.dreamhouse.ru
213.147.42.88	PTR	mx.russaudit.ru
213.147.42.161	A+PTR	rd-komplex-adsl-gw.mtu.ru
213.147.43.130	PTR	dotcomltd.ru
213.147.43.186	PTR	gw.virusolog.ru
213.147.43.188	PTR	inserv2.senator.ru
213.147.44.29	A+PTR	213.147.44.29.in-addr.mtu.ru
213.147.44.164	PTR	nsw.rprg.ru
213.147.44.165	PTR	rmail.rprg.ru
213.147.44.227	A+PTR	213.147.44.227.in-addr.mtu.ru
213.147.45.66	A	relay.udarnitsa.ru
213.147.45.186	PTR	186.45.147.213.in-addr.arpa.mtu.ru
213.147.47.30	PTR	uverse.ru
213.147.47.245	PTR	mailer.supermicro.pp.ru
213.147.49.4	PTR	isbmsk.ru
213.147.49.82	PTR	srv1.ums-mos.ru
213.147.49.100	PTR	mail.auto2.ru
213.147.49.226	PTR	mail.nova.ru
213.147.49.244	A+PTR	mail.maktime.ru
213.147.50.163	PTR	core.stanki.ru
213.147.51.171	PTR	www.color-bank.ru
213.147.51.195	PTR	mail.kvartal.ru
213.147.51.210	PTR	mail.sawatzky.ru
213.147.52.242	PTR	www.schoolpress.ru
213.147.52.242	A	mail.shkola-press.ru
213.147.52.242	A	shkola-press.ru
213.147.53.98	A+PTR	vagna.ptt.ru
213.147.54.5	A+PTR	hst05.online.ptt.ru
213.147.54.6	A	hst06.online.ptt.ru
213.147.54.8	A	hst08.online.ptt.ru
213.147.54.50	PTR	ns.elektrozavod.ru
213.147.54.59	PTR	gate.elektrozavod.ru
213.147.54.74	A	mail.voenaudit.ru
213.147.54.130	A+PTR	213.147.54.130.in-addr.mtu.ru
213.147.54.141	A	213.147.54.141.in-addr.mtu.ru
213.147.54.170	A	bbslab.lflink.com
213.147.54.170	A	tt0320.portrelay.com
213.147.54.210	PTR	mail.cie.ru
213.147.56.247	A	free.tesis.com.ru
213.147.57.66	A	mail1.ciam.ru
213.147.58.42	PTR	nik.paporotnik.ru
213.147.59.91	PTR	mail.lantep.ru
213.147.59.91	A	mail.xn--80auibeije.xn--p1ai
213.147.59.162	PTR	mail.ardos.ru
213.147.59.210	A+PTR	mail.19taxopark.ru
213.147.60.145	A	scuti.inkk.ru
213.147.60.146	A+PTR	web.inkk.ru
213.147.60.146	A	inkk.ru
213.147.60.146	A	www.inconsult-k.ru
213.147.60.147	PTR	mail.inkk.ru
213.147.60.148	PTR	tmail.inkk.ru
213.147.61.66	PTR	ice.thermocool.ru
213.147.61.67	PTR	mx1.thermocool.ru
213.147.61.129	A	p1.fresenius.ru
213.147.61.140	A+PTR	smtp.fresenius.ru
213.147.61.150	PTR	www.4bsystem.com
213.147.61.150	A	4bsystem.com
213.147.62.91	A	mail.malahits.com
213.147.62.91	A	mail.malahits.net
213.147.62.140	A	mainserver.palmintech.com
213.147.63.117	A	oldcity.cc
213.147.63.117	A	agentoldcity.ru
213.147.63.117	A	infoldcity.ru