Robtex

Up: 91.210.80.0/21
Can't show all results, try to descend to a more specific CIDR
Down left: 91.210.84.0/23
Down right: 91.210.86.0/23
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
91.210.84.1	A+PTR	gw02.fortex.ru
91.210.84.5	A+PTR	gw01.fortex.ru
91.210.84.10	PTR	mail.unital.ru
91.210.84.10	A	ns2.prod-mol.ru
91.210.84.10	A	ns2.prodinvest-feed.ru
91.210.84.12	A+PTR	gw-pppoe-00.fortex.ru
91.210.84.14	A+PTR	gw-pppoe-02.fortex.ru
91.210.84.15	A+PTR	gw-pppoe-01.fortex.ru
91.210.84.33	A+PTR	gw-srv.fortex.ru
91.210.84.35	A+PTR	mms20.fortex.ru
91.210.84.36	A	mms17.fortex.ru
91.210.84.39	A+PTR	mms12.fortex.ru
91.210.84.40	A+PTR	mms14.fortex.ru
91.210.84.41	A+PTR	mms15.fortex.ru
91.210.84.44	PTR	forteks.ru
91.210.84.44	A+PTR	ns4.fortex.ru
91.210.84.44	PTR	de-cix.ru.com
91.210.84.45	PTR	mms13.fortex.ru
91.210.84.46	PTR	mms16.fortex.ru
91.210.84.47	A+PTR	mms11.fortex.ru
91.210.84.47	PTR	ns3.fortex.ru
91.210.84.47	PTR	ns4.fortex.ru
91.210.84.48	A+PTR	mms21.fortex.ru
91.210.84.49	A+PTR	mms22.fortex.ru
91.210.84.50	A+PTR	mms6.fortex.ru
91.210.84.51	A+PTR	mms8.fortex.ru
91.210.84.52	A+PTR	mms9.fortex.ru
91.210.84.53	A+PTR	mms5.fortex.ru
91.210.84.54	A+PTR	mms23.fortex.ru
91.210.84.55	A+PTR	alouder.fortex.ru
91.210.84.57	A+PTR	mms24.fortex.ru
91.210.84.58	A	system.fortex.ru
91.210.84.58	A	q2dm1.ru
91.210.84.59	A+PTR	mms26.fortex.ru
91.210.84.61	A	imaresearch.ru
91.210.84.62	A+PTR	mms25.fortex.ru
91.210.84.99	A	ns2.heatshop.ru
91.210.84.100	A+PTR	mx.impulsgroup.ru
91.210.84.131	PTR	mail.agama-logistic.info
91.210.84.154	A+PTR	bftel.fortex.ru
91.210.84.181	A	server.belcab.ru
91.210.84.194	PTR	mks-gw.mkc-net.ru
91.210.84.242	A	ns.golitsino.com
91.210.84.248	A	nazdorovie.ru
91.210.84.248	A	drinkgifts.ru
91.210.84.248	A	xn----8sblcslybigbgs.xn--p1ai
91.210.84.253	A	4c11bfb24e47.quickddns.com
91.210.85.15	A+PTR	lingate.kuppo.com
91.210.85.32	A	yasnovidyashii.net
91.210.85.54	A+PTR	mail.btk1.ru
91.210.85.88	PTR	fortex.ru
91.210.85.88	A+PTR	mms11.fortex.ru
91.210.85.88	PTR	ns3.fortex.ru
91.210.85.95	PTR	ns-msk.msk.keramir.com
91.210.85.134	A+PTR	mailds.impulsgroup.ru
91.210.85.154	A+PTR	mail.biocad.ru
91.210.85.154	A	mx1.biotech-sol.com
91.210.85.157	A	mail2.biocad.ru
91.210.85.157	A	mail-msk.biocad.ru
91.210.85.170	PTR	prvo.bioguard.ru
91.210.85.202	A+PTR	lactalis.fortex.ru
91.210.85.210	A+PTR	mail.tushinopivo.ru
91.210.85.210	A	tushinopivo.ru
91.210.85.238	A	ns2.villagio.ru
91.210.85.254	PTR	scld.bioguard.ru
91.210.86.22	A+PTR	mail.mosizolyator.ru
91.210.86.22	A	mail.mosizolyator.com
91.210.86.26	PTR	bdv.travel
91.210.86.26	A+PTR	mail.uspen.ru
91.210.86.26	A+PTR	mail.bdv.travel
91.210.86.34	PTR	eatmeat.ru
91.210.86.34	A+PTR	mx.eatmeat.ru
91.210.86.34	A	mail.eatmeat.ru
91.210.86.42	A+PTR	msg01.inmar.org
91.210.86.59	A+PTR	msk-msg01.pavlovo-school.ru
91.210.86.59	A	mx.pavlovo-school.ru
91.210.86.65	PTR	118002.fortex.ru
91.210.86.79	A	sembul.ru
91.210.86.88	A+PTR	mms11.fortex.ru
91.210.86.88	A+PTR	ns7.fortex.ru
91.210.86.104	A	retyroot.net
91.210.86.129	A	gw-pppoe.fortex.ru
91.210.86.130	A+PTR	pppoe02.fortex.ru
91.210.86.131	A+PTR	pppoe01.fortex.ru
91.210.86.132	A+PTR	pppoe00.fortex.ru
91.210.86.133	A+PTR	pppoe03.fortex.ru
91.210.86.195	A+PTR	vl-telecom.fortex.ru
91.210.86.214	PTR	post.termoclub.ru
91.210.87.9	A+PTR	mail.rosaski.com
91.210.87.18	PTR	1kad.ru
91.210.87.25	PTR	ksk-nahabino.ru
91.210.87.25	PTR	nahabino-adm.ru
91.210.87.25	A+PTR	sovet-nahabino.ru
91.210.87.44	PTR	bestdetailing.ru
91.210.87.44	PTR	jack-d.ru
91.210.87.44	PTR	fortex.tv
91.210.87.46	PTR	msks1003.activ-pls.ru
91.210.87.50	PTR	aggs0004.agrogarant.com
91.210.87.89	PTR	fft-home.com
91.210.87.94	A	mail.anime-dream.com
91.210.87.108	A	hyuga.ru
91.210.87.179	A	a-elites.ru
91.210.87.202	PTR	skland.ru
91.210.87.205	A+PTR	rz3dvp.ru