Robtex

Up: 194.12.50.0/23
Can't show all results, try to descend to a more specific CIDR
Down left: 194.12.51.0/25
Down right: 194.12.51.128/25
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
194.12.51.2	A	srv.bgoperator.ru
194.12.51.5	A	www.x86.ru
194.12.51.11	A	www.complex-systems.biz
194.12.51.11	A	klen.org
194.12.51.11	A	www.klen.org
194.12.51.30	A+PTR	storage1.bgoperator.ru
194.12.51.30	A	smtp.bg.market