Robtex

Up: 77.235.192.0/23
Can't show all results, try to descend to a more specific CIDR
Down left: 77.235.192.0/25
Down right: 77.235.192.128/25
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
77.235.192.0	PTR	subnet0x4.192.quantum.ru
77.235.192.30	PTR	ritm2000.ru
77.235.192.106	PTR	tv-utvererof2.192.quantum.ru
77.235.192.106	A	ns2.mail10.net
77.235.192.230	A+PTR	prostor.ub-group.ru
77.235.192.230	A	mx2.mail10.net
77.235.192.230	A	prostor.int-tver.ru
77.235.192.254	A	123.42.175.79.tver.ptl.ru
77.235.192.254	A	0.212.tver.ptl.ru
77.235.192.254	A	19.42.175.79.tver.ptl.ru