Robtex

Up: 91.212.50.0/23
Can't show all results, try to descend to a more specific CIDR
Down left: 91.212.50.0/25
Down right: 91.212.50.128/25
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
91.212.50.32	A+PTR	mail.rosinter.ru
91.212.50.32	A+PTR	relay.rosinter.ru
91.212.50.32	A	relay.rosinter.com
91.212.50.33	PTR	dahli.rosinter.ru
91.212.50.33	A	rostikrest.ru
91.212.50.33	A	azabu.ru
91.212.50.34	A+PTR	around.rosinter.ru
91.212.50.44	PTR	vm01.rosinter.ru
91.212.50.44	A	patio-planeta.ru
91.212.50.44	A	rosdelive.ru
91.212.50.53	PTR	mx.rosinter.ru
91.212.50.54	A+PTR	mx.rosinter.ru
91.212.50.54	A	mx.rrh-ce.com
91.212.50.55	A+PTR	ns.rosinter.ru
91.212.50.55	A	ns.rosinter.com
91.212.50.55	A	ns.honoredguest.ru
91.212.50.56	A	rednest.rosinter.ru
91.212.50.56	A	cs.rosinter.ru
91.212.50.57	A	rostikclub.com
91.212.50.57	A	rostikclub.ru
91.212.50.58	A	loyaltypartners.ru