Robtex

Up: 87.236.80.0/23
Can't show all results, try to descend to a more specific CIDR
Down left: 87.236.81.0/25
Down right: 87.236.81.128/25
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
87.236.81.34	A	mx.pizzafab.ru
87.236.81.58	PTR	mx.printmatik.ru
87.236.81.68	A+PTR	mail.accurat.ru
87.236.81.68	A	accurat.ru
87.236.81.68	A	www.accurat.ru
87.236.81.69	PTR	mail.accurat.ru
87.236.81.69	A	www.accurat.ru
87.236.81.80	PTR	msk.ivoin.ru
87.236.81.114	A+PTR	smtp2.marr.ru
87.236.81.114	A	mail.ivanovpv.ru
87.236.81.114	A	mail2.marr.ru
87.236.81.140	PTR	mail.tdenergoservice.ru
87.236.81.147	PTR	nova.fobos-plus.ru
87.236.81.155	PTR	gate3.iftg.ru
87.236.81.197	PTR	mail.axiom-team.com
87.236.81.200	PTR	treasureisland.ru
87.236.81.218	A	3mac.ru
87.236.81.222	PTR	horizont.tv
87.236.81.222	A	tv-service.tv
87.236.81.222	A	www.tv-service.tv