Robtex

Up: 84.22.192.0/23
Can't show all results, try to descend to a more specific CIDR
Down left: 84.22.193.0/25
Down right: 84.22.193.128/25
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
84.22.193.1	A+PTR	ns1.paguo.net
84.22.193.1	A	ns1.spb.starttelecom.ru
84.22.193.3	PTR	mail.paguo.net
84.22.193.73	A+PTR	dmesg.rdnet.ru
84.22.193.73	A+PTR	ntp.rdnet.ru
84.22.193.73	A+PTR	spb-rdnet-gw.rdnet.ru
84.22.193.100	A	stat.rdnet.ru
84.22.193.101	A	stats.rdnet.ru
84.22.193.130	PTR	relay.rdnet.ru
84.22.193.130	A	relay.spb.starttelecom.ru
84.22.193.131	A+PTR	mail.rdnet.ru
84.22.193.131	A	rosnet.spb.ru
84.22.193.131	A	rosmail.spb.ru
84.22.193.143	A+PTR	relayn.rdnet.ru
84.22.193.143	A	relay.rdnet.ru