Robtex

Up: 85.90.96.0/21
Can't show all results, try to descend to a more specific CIDR
Down left: 85.90.100.0/23
Down right: 85.90.102.0/23
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
85.90.100.0	PTR	tz-net.tz.ru
85.90.100.18	A	mail.kojyhovo.ru
85.90.100.45	A+PTR	mail.tep-m.ru
85.90.100.52	A	mail.ralf.ru
85.90.100.57	A+PTR	server3.ralf.ru
85.90.100.57	A	mail.ralf.ru
85.90.100.57	A	mailserver.ralf.ru
85.90.100.58	A	entente.mailralf.ru
85.90.100.61	A	ralfringer.ru
85.90.100.61	A	ralftest.ru
85.90.100.61	A	web-server.ralfringer.ru
85.90.100.99	PTR	mail.avignon-auto.ru
85.90.100.101	PTR	mail.fkmotors.ru
85.90.100.146	A+PTR	mx-0.autoprestus.ru
85.90.100.146	A	mail.autoprestus.ru
85.90.100.250	PTR	mail.synchrotel.ru
85.90.100.251	A	mail.mos-electro.org
85.90.101.28	A+PTR	mail.alancargo.ru
85.90.101.35	PTR	monster.jackfrost.ru
85.90.101.178	PTR	mail.tecnopack.ru
85.90.101.194	PTR	pulsarnpp.ru
85.90.101.194	A	www.pulsarnpp.ru
85.90.101.194	A	a.pulsarnpp.ru
85.90.101.197	A+PTR	mail.pulsarnpp.ru
85.90.101.198	A	xn--b1a5a.xn--p1ai
85.90.101.198	A	gz-pulsar.ru
85.90.101.198	A	xn--80avlgdk8d.su
85.90.101.202	PTR	mail2.sweetgroup.ru
85.90.101.244	PTR	mail.ncb-bank.ru
85.90.102.0	PTR	tz-net.tz.ru
85.90.102.100	PTR	dns.rusventure.ru
85.90.102.106	A	office.latec.ru
85.90.102.131	A	mail1.it-decision.ru
85.90.102.154	A	fg.fingrad.com
85.90.102.155	A+PTR	albion.glowbyte.com
85.90.102.155	A	ns1.xn--80afenzty.xn--p1ai
85.90.102.155	A	mail.glowbyte.com
85.90.102.156	A	alcasar.glowbyte.com
85.90.103.106	A+PTR	oks.tz.ru
85.90.103.114	A+PTR	aemedia.tz.ru
85.90.103.117	PTR	smtp.oksolutions.ru
85.90.103.194	PTR	mail.zhizn.ru
85.90.103.195	PTR	mx.zhizn.ru
85.90.103.234	PTR	mail.photoholding.com
85.90.103.234	A	photoholding.ru
85.90.103.244	A	pochta.stroyregiongaz.ru