Robtex

Up: 80.80.96.0/21
Can't show all results, try to descend to a more specific CIDR
Down left: 80.80.96.0/23
Down right: 80.80.98.0/23
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
80.80.96.92	A	p92.mp96.aaanet.ru
80.80.96.203	A	p203.mp96.aaanet.ru
80.80.97.1	PTR	dummy.aaanet.ru
80.80.97.96	PTR	mail.tander.aaanet.ru
80.80.97.138	PTR	qs1-tulsk3-p5
80.80.98.1	PTR	dummy.aaanet.ru
80.80.98.10	A	relay2.simeon.ru
80.80.98.11	A	catachina.ru
80.80.98.31	A	mail.kama-ug.ru
80.80.98.37	PTR	hakanagrorus.ru
80.80.98.40	A+PTR	dcv-skzd.ru
80.80.98.40	A	mail.dcv-skzd.ru
80.80.98.53	A+PTR	mail.polusplus.ru
80.80.98.53	A	www.polusplus.ru
80.80.98.58	A	indahauz.com
80.80.98.76	PTR	tp.ru
80.80.98.76	A	meet.case.ru
80.80.98.76	A	s-tpexch.tp.ru
80.80.98.95	PTR	skdk.aaanet.ru
80.80.98.100	PTR	smtp.imango.ru
80.80.98.106	PTR	mail.sbc-group.ru
80.80.98.114	A+PTR	gw.vedregion.ru
80.80.98.114	A	gw.vedomosti-rostov.ru
80.80.98.114	A	vedregion.ru
80.80.98.117	A	hosterip.ru
80.80.98.121	PTR	mail.dvcom.ru
80.80.98.121	A	mail2.dvcom.ru
80.80.98.121	A	ns.dvcom.ru
80.80.98.127	PTR	doteco.ru
80.80.98.136	A+PTR	mailolg.rostovopt.ru
80.80.98.139	A+PTR	mailsrvn3.tihiy-don.ru
80.80.98.143	A	mail.riiem.ru
80.80.98.144	A	rospromservis.ru
80.80.98.150	A+PTR	relay.maxim-servis.ru
80.80.98.158	A+PTR	mail1.hdm-rostov.ru
80.80.98.158	A	mail.hdm-rostov.ru
80.80.98.163	PTR	mx163.slmug.ru
80.80.98.176	A	pinkbyte.ru
80.80.98.202	PTR	mail.utb-rostov.ru
80.80.98.215	A	its-rnd.ru
80.80.98.222	A+PTR	premier-rostov.ru
80.80.98.222	A	www.premier-rostov.ru
80.80.98.222	A	iqhobby.ru
80.80.98.229	A+PTR	cts2.vip-driver.ru
80.80.98.229	A	gw4-vip-driver.dyndns.org
80.80.98.229	A	gw4.vip-driver.ru
80.80.98.231	PTR	donniva.aaanet.ru
80.80.98.232	A	mail.spec-ohrana.ru
80.80.98.247	A	zsro.tk
80.80.99.22	A	mail.mirmebeli.org
80.80.99.22	A	worker.mirmebeli.org
80.80.99.23	PTR	mirmebeli.org
80.80.99.27	A+PTR	elegant.aaanet.ru
80.80.99.27	A	mail.lalis.ru
80.80.99.27	A	mail.elis.ru
80.80.99.35	PTR	rstskl.ecolas.ru
80.80.99.36	PTR	mail.ecolas.ru
80.80.99.49	PTR	relay.stapel.ru
80.80.99.62	A+PTR	mail.generalcomp.ru
80.80.99.62	A	mail1.generalcomp.ru
80.80.99.62	A	ns1.generalcomp.ru
80.80.99.75	PTR	prk.aaanet.ru
80.80.99.76	PTR	petrol.nefteservis.ru
80.80.99.97	PTR	grs.ru
80.80.99.97	PTR	mail.grs.ru
80.80.99.97	PTR	mail2.grs.ru
80.80.99.106	A+PTR	mo-mail-0.mir-opt.ru
80.80.99.106	A	mo-mail.mir-opt.ru
80.80.99.117	A	tsimbalenko.ru
80.80.99.122	A	smtp.dontranzit.ru
80.80.99.131	A	smbbank.ru
80.80.99.145	PTR	mail.iiso.ru
80.80.99.158	PTR	mail.rostov.genbank.ru
80.80.99.158	A	mx2.rostov.genbank.ru
80.80.99.163	A	ru-soft.org
80.80.99.163	A	neptus.ru
80.80.99.187	A	mail.prolaser.ru
80.80.99.193	PTR	mail.don-arsenal.ru
80.80.99.215	A	mail.ru-seller.ru
80.80.99.220	PTR	mail.10-gpz.ru
80.80.99.220	A	mx2.10-gpz.ru
80.80.99.223	A	vniigrugol.r61.net
80.80.99.223	A	geocoal.ru
80.80.99.233	A+PTR	mail.dom161.ru
80.80.99.248	A+PTR	mx.gkmillenium.ru
80.80.99.248	A	gkmillenium.ru
80.80.99.252	PTR	nicecode.biz
80.80.99.252	A	xn----8sbigbs6acbzbvc4c.xn--p1ai
80.80.99.252	A	mobi-lux.by