Robtex

Up: 87.249.54.0/23
Can't show all results, try to descend to a more specific CIDR
Down left: 87.249.55.0/25
Down right: 87.249.55.128/25
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
87.249.55.2	PTR	contextclub.org
87.249.55.2	A	ns2.oyster.su
87.249.55.2	A	mail.contextclub.org
87.249.55.3	PTR	wave-access.com
87.249.55.3	PTR	rcruise.ru
87.249.55.3	PTR	rondocruise.ru
87.249.55.4	PTR	oper.oyster-telecom.ru
87.249.55.4	PTR	plesk-4.unnet.ru
87.249.55.4	A	spbix.ru
87.249.55.5	PTR	cbmway.ru
87.249.55.5	PTR	cscled.ru
87.249.55.5	PTR	ships.ru
87.249.55.6	PTR	partners.spb.ru
87.249.55.6	PTR	nordcons.ru
87.249.55.6	A	spbix.ru
87.249.55.7	A+PTR	mail.svt.spb.ru
87.249.55.7	A	svt.spb.ru
87.249.55.7	A	www.svt.spb.ru
87.249.55.10	A+PTR	contextfound.org
87.249.55.10	PTR	meatsale.spb.ru
87.249.55.10	A	mail.contextfound.org