Robtex

Up: 217.79.8.0/22
Can't show all results, try to descend to a more specific CIDR
Down left: 217.79.10.0/24
Down right: 217.79.11.0/24
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
217.79.10.9	PTR	h-sh-datacenter.obit.ru
217.79.10.36	A+PTR	217-79-10-36.obit.ru
217.79.10.51	A+PTR	217-79-10-51.obit.ru
217.79.11.1	PTR	ns.ultra5.ru
217.79.11.1	A+PTR	ns2.ultra5.ru
217.79.11.9	A+PTR	mail.ultra5.ru
217.79.11.9	A	ultra5.ru
217.79.11.9	A	admin.ultra5.ru