Robtex

Up: 193.233.24.0/22
Can't show all results, try to descend to a more specific CIDR
Down left: 193.233.24.0/24
Down right: 193.233.25.0/24
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
193.233.24.1	A+PTR	ns.mgul.ac.ru
193.233.24.21	A+PTR	test.mgul.ac.ru
193.233.24.33	A	freebsd.mgul.ac.ru
193.233.25.1	A+PTR	ns1.mgul.ac.ru
193.233.25.1	A	ns2.msfu.ru
193.233.25.1	A	ns1.msfu.ru
193.233.25.212	A	caf-lescult-nbk1.mgul.ac.ru