Robtex

Up: 77.72.240.0/20
Can't show all results, try to descend to a more specific CIDR
Down left: 77.72.240.0/22
Down right: 77.72.244.0/22
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
77.72.240.1	A+PTR	nsk.tvoe.tv
77.72.240.1	A+PTR	srvgate.nsk.tvoe.tv
77.72.240.1	A	mx.nsk.tvoe.tv
77.72.240.4	PTR	dlink.nsk.tvoe.tv
77.72.240.4	PTR	maxx.nsk.tvoe.tv
77.72.240.4	PTR	maxx2.nsk.tvoe.tv
77.72.240.5	PTR	tvoyinter.net
77.72.240.8	A+PTR	ssg.nsk.tvoe.tv
77.72.240.9	PTR	billing.nsk.tvoe.tv
77.72.240.9	PTR	july.nsk.tvoe.tv
77.72.240.9	PTR	sigma.nsk.tvoe.tv
77.72.240.165	A	mx.nsks65.ru
77.72.240.165	A	nsks65.ru