Robtex

Up: 84.51.192.0/18
Can't show all results, try to descend to a more specific CIDR
Down left: 84.51.192.0/20
Down right: 84.51.208.0/20
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
84.51.193.253	A+PTR	topaz.tagmet.ru
84.51.194.1	PTR	1.194.51.84.donpac.ru
84.51.194.3	PTR	3.194.51.84.donpac.ru
84.51.194.34	PTR	34.194.51.84.donpac.ru
84.51.194.64	PTR	64.194.51.84.donpac.ru
84.51.194.128	PTR	194-128.adsl.infotecstt.ru
84.51.194.129	PTR	129.194.51.84.donpac.ru
84.51.194.130	PTR	130.194.51.84.donpac.ru
84.51.194.131	PTR	131.194.51.84.donpac.ru
84.51.194.163	PTR	163.194.51.84.donpac.ru
84.51.194.194	PTR	194.194.51.84.donpac.ru
84.51.194.224	PTR	224.194.51.84.donpac.ru
84.51.194.225	PTR	225.194.51.84.donpac.ru
84.51.195.55	PTR	relay.feo.org.ru
84.51.195.57	A	office.kcc.ru
84.51.195.57	A	spark.kcc.ru
84.51.195.57	A	mail.kcc.ru
84.51.195.64	PTR	64.195.51.84.donpac.ru
84.51.195.94	PTR	94.195.51.84.donpac.ru
84.51.195.119	PTR	119.195.51.84.donpac.ru
84.51.195.119	A	vpn2.sdt.ru
84.51.195.119	A	elefantito.mx
84.51.195.131	PTR	131.195.51.84.donpac.ru
84.51.195.134	PTR	134.195.51.84.donpac.ru
84.51.195.148	A	mop.tsure.ru
84.51.195.155	A	ns3.baliby.com
84.51.195.171	A	smtp.favt.tsure.ru
84.51.195.171	A	mail.favt.tsure.ru
84.51.195.175	PTR	175.195.51.84.donpac.ru
84.51.195.199	PTR	199.195.51.84.donpac.ru
84.51.195.200	A+PTR	post.intek-group.ru
84.51.195.200	A	intek-techno.ru
84.51.195.200	A	www.intek-group.ru
84.51.195.220	PTR	220.195.51.84.donpac.ru
84.51.200.3	A	avalon.infotecstt.ru
84.51.200.11	PTR	vsg-1200.infotecstt.ru
84.51.200.13	A	hipower.infotecstt.ru
84.51.200.14	A	grey.infotecstt.ru
84.51.200.218	PTR	218.200.51.84.donpac.ru
84.51.200.218	A	www.taganrog.biz
84.51.200.218	A	tagancity.ru
84.51.201.48	PTR	48.201.51.84.donpac.ru
84.51.203.24	PTR	24.203.51.84.donpac.ru
84.51.204.143	PTR	143.204.51.84.donpac.ru
84.51.213.212	PTR	212.213.51.84.donpac.ru
84.51.214.110	PTR	110.214.51.84.donpac.ru
84.51.216.238	PTR	238.216.51.84.donpac.ru
84.51.219.250	PTR	250.219.51.84.donpac.ru
84.51.223.22	A+PTR	hellstad.ru
84.51.223.23	A+PTR	relay2.aviaok.com