Robtex

Up: 84.21.192.0/18
Can't show all results, try to descend to a more specific CIDR
Down left: 84.21.224.0/20
Down right: 84.21.240.0/20
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
84.21.224.0	PTR	network-224.netway.ru
84.21.224.1	A+PTR	gw7206.netway.ru
84.21.224.2	A+PTR	ns0.netway.ru
84.21.224.2	A	ns.netway.ru
84.21.224.2	A	ns.euross.ru
84.21.224.25	A	ns.euross.ru
84.21.224.25	A	mail.euross.ru
84.21.224.25	A	ns2.euross.ru
84.21.224.149	A	mail.euross.ru
84.21.224.149	A	euross.ru
84.21.224.149	A	netwpost.ru
84.21.224.210	A	sw3548xl.netway.ru
84.21.224.211	A+PTR	sw2950g.netway.ru
84.21.224.212	A+PTR	sw2948g.netway.ru
84.21.224.225	A+PTR	gw7604.netway.ru
84.21.224.225	A	7604.netway.ru
84.21.224.226	PTR	7206.netway.ru
84.21.224.226	A	gw7206.netway.ru
84.21.225.0	PTR	network-225.netway.ru
84.21.225.174	PTR	mail.looktor.ru
84.21.225.226	A	mail.aviom.ru
84.21.225.226	A	ns1.aviom.ru
84.21.226.0	PTR	network-226.netway.ru
84.21.226.163	PTR	163.r226.gfk.ru
84.21.226.163	A	ns2.gfk.ru
84.21.226.166	A	mx2.gfk.ru
84.21.226.194	PTR	mail.integrita.ru
84.21.227.0	PTR	network-227.netway.ru
84.21.227.2	A+PTR	ns3.netway.ru
84.21.227.2	A	ns2.netwpost.ru
84.21.227.2	A	ns2.euross.ru
84.21.227.3	A	rezdns.netway.ru
84.21.227.139	A	mail.sdinvest.su
84.21.227.187	A+PTR	kaskad-group.ru
84.21.227.187	A	sptek.ru
84.21.227.187	A	mail.kaskad-group.ru
84.21.227.234	A	ns1.gostmailer.com
84.21.227.234	A	ns1.servorobot.net
84.21.228.58	A	akvalis.ru
84.21.228.58	A	ns1.akvalis.ru
84.21.228.58	A	smtp.akvalis.ru
84.21.228.154	A	si.pp.ru
84.21.228.194	A	fw.ipc2u.ru
84.21.228.254	A	*.kaskad-group.ru
84.21.229.58	A+PTR	mail4.jac.ru
84.21.229.58	A	84-21-229-58.jac.ru
84.21.229.138	A	ns2.aviom.ru
84.21.229.142	A	www.cbooking.ru
84.21.229.197	A	mail2.andek.ru
84.21.229.197	A	www.andek.ru
84.21.229.197	A	andek.ru
84.21.229.226	A	mail.master-chistoty.ru
84.21.230.18	A+PTR	ns.jac.ru
84.21.230.18	A	jac.ru
84.21.230.18	A	biocond.ru
84.21.230.83	A	globtrading.ru
84.21.230.83	A	nizkoramnik.com
84.21.230.83	A	xn--80appkdh.xn--p1ai
84.21.230.98	A+PTR	ns2.jac.ru
84.21.230.101	A+PTR	84-21-230-101.jac.ru
84.21.230.108	PTR	84-21-230-108.jac.ru
84.21.230.108	A	smtp01.jac.ru
84.21.230.109	PTR	mail2.discovery-mag.ru
84.21.230.131	A+PTR	mail.trinar.ru
84.21.230.131	A	trinar.ru
84.21.230.132	A+PTR	mail.netway.ru
84.21.230.136	A	mail.gunthart.ru
84.21.230.210	A	wagondetect.com
84.21.230.210	A	tdetect.com
84.21.230.230	A+PTR	support.netway.ru
84.21.230.231	A	netwpost.ru
84.21.230.231	A	ns1.netwpost.ru
84.21.231.0	PTR	network-231.netway.ru
84.21.231.131	A	isa.gfk.ru
84.21.231.132	A	web.gfk.ru
84.21.231.132	A	ftpdata.gfk.ru
84.21.231.135	A	ipsec-gw1.gfk.ru
84.21.232.0	PTR	network-232.netway.ru
84.21.233.66	PTR	mx.vitus-bering.ru
84.21.233.66	A	cbooking.ru
84.21.233.67	PTR	mail.cbooking.ru
84.21.233.114	PTR	mail.parcen.ru
84.21.234.2	A	ns5.netway.ru
84.21.235.0	PTR	network-235.netway.ru
84.21.235.6	A+PTR	sip4.netway.ru
84.21.235.78	PTR	mailer.atol.ru
84.21.235.82	A+PTR	ms1.alustem.ru
84.21.235.246	PTR	mail.src-master.ru
84.21.236.0	PTR	network-236.netway.ru
84.21.236.34	A	relay2.associates.ru
84.21.236.75	PTR	admade.ru
84.21.236.75	PTR	mail.admade.ru
84.21.236.90	A	mail.arteltrans.ru
84.21.238.37	A	mail.zao-bars.ru
84.21.240.222	A	radius.netway.ru
84.21.242.114	A	mail.apsmsk.ru
84.21.255.35	A	sip4.netway.ru
84.21.255.40	A	sip.netway.ru