Robtex

Up: 83.167.16.0/20
Can't show all results, try to descend to a more specific CIDR
Down left: 83.167.24.0/22
Down right: 83.167.28.0/22
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
83.167.24.5	PTR	mail.profitrole.ru
83.167.24.5	A	server.mk66.ru
83.167.24.19	PTR	mail.yodlik.ru
83.167.24.39	PTR	sinara.isnet.ru
83.167.24.113	A+PTR	mail.parad.ru
83.167.24.139	A	mail.nevotex.ru
83.167.24.146	A+PTR	mm.isnet.ru
83.167.24.149	PTR	mail.ya-press.ru
83.167.24.149	A	vintery.isnet.ru
83.167.24.155	PTR	krovatka.isnet.ru
83.167.24.171	PTR	mail-internet.impart.ru
83.167.24.199	A	cs-super.com
83.167.24.207	A	alexsuvorov.ru
83.167.24.207	A	hostmaster.fun4u.ru
83.167.24.207	A	fun4u.ru
83.167.24.209	PTR	uo.groza.ru
83.167.24.218	A	mcgroza.com
83.167.24.218	A	superwolf.ru
83.167.24.218	A	alphacraft.ru
83.167.24.225	A+PTR	groza.ru
83.167.24.225	A	mail.groza.ru
83.167.24.225	A	xn--80afm1aj.xn--p1ai
83.167.24.235	PTR	oblako.info
83.167.26.22	A	bbsec.ru
83.167.26.40	A	impinc.isnet.ru
83.167.26.78	A	jeka.isnet.ru
83.167.26.200	A	pirat.isnet.ru
83.167.27.6	PTR	mail.nscekb.ru
83.167.27.11	A+PTR	server1.pisheprom.ru
83.167.27.11	A	mail.pisheprom.ru
83.167.27.27	A+PTR	unit.e-burg.ru
83.167.27.44	PTR	proxy.format.ru
83.167.27.45	A+PTR	mx1.boyard.biz
83.167.27.45	A	www.b-cp.ru
83.167.27.45	A	mail.boyard.biz
83.167.27.51	PTR	mail.fadural.ru
83.167.27.91	A	creox.ru
83.167.27.91	A	architech-rus.com
83.167.27.91	A	5sot.su
83.167.27.103	PTR	lotus.galaktika-ural.ru
83.167.27.108	PTR	mail.9trest-ekb.ru
83.167.27.111	PTR	prolak-e.ru
83.167.27.117	PTR	ns.icsurals.ru
83.167.27.145	PTR	gateway.mdmural.ru
83.167.27.146	PTR	pix.mdmural.ru
83.167.27.147	PTR	ns.mdmural.ru
83.167.27.157	PTR	ibank.mdmural.ru
83.167.28.121	A	adwords-shoping.ru
83.167.28.131	A	nks-d.ru
83.167.28.131	A	gw3.nks-d.ru
83.167.29.2	A+PTR	ugse.isnet.ru
83.167.29.98	PTR	kb-agava.ru
83.167.29.98	A	ns.xn--80aaabhe0c.xn--p1ai
83.167.29.98	A	erman.ru
83.167.29.108	A	kb-agava.com
83.167.29.108	A	mail1.kb-agava.com
83.167.29.108	A	ns1.kb-agava.com
83.167.29.124	A	wlife.su
83.167.29.196	A	nm101.tk
83.167.29.196	A	www.nm101.tk
83.167.30.18	PTR	uralrti.ru
83.167.30.18	PTR	gate.uralrti.ru
83.167.30.18	A	gate2.uralrti.ru
83.167.30.168	A	www.mf-apelsin.ru
83.167.31.85	A+PTR	mail.u-sk.ru
83.167.31.140	PTR	nevada.ueef.ru