Robtex

Up: 81.90.208.0/22
Can't show all results, try to descend to a more specific CIDR
Down left: 81.90.208.0/24
Down right: 81.90.209.0/24
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
81.90.208.2	A	as.hypernet.ru
81.90.208.3	A+PTR	ns.hypernet.ru
81.90.208.3	A	xn--c1aeak9ahhj4g.xn--p1ai
81.90.208.3	A	ns.33px.ru
81.90.208.4	PTR	dns2.hpn.su
81.90.208.4	A	ns1.mineralresource.ru
81.90.208.4	A	ns1.chel-sport.ru
81.90.208.6	A	home.hypernet.ru
81.90.208.12	PTR	hosting.hypernet.ru
81.90.208.12	A	planetaozer.ru
81.90.208.12	A	www.planetaozer.ru
81.90.208.202	PTR	gw-online.hypernet.ru
81.90.208.246	A+PTR	mail.telematics.ru
81.90.208.246	A	ns4.telematics.ru
81.90.208.246	A	ns1.telematics.ru