Robtex

Up: 31.193.120.0/23
Can't show all results, try to descend to a more specific CIDR
Down left: 31.193.121.0/25
Down right: 31.193.121.128/25
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
31.193.121.18	PTR	mail.baltzdrav.ru
31.193.121.18	A	mail.baltzdrav.com
31.193.121.29	A	pochta.palkin.ru
31.193.121.38	PTR	ip-38.121.193.31.eltl.ru
31.193.121.38	A	mxa.man-spb.ru
31.193.121.45	PTR	ip-45.121.193.31.eltl.ru
31.193.121.58	A+PTR	listmaster.riviera.ru
31.193.121.58	A	spb.ntk-intourist.ru
31.193.121.58	A	ntk-intourist.ru
31.193.121.59	PTR	ip-59.121.193.31.eltl.ru
31.193.121.59	A	mx2.riviera.ru
31.193.121.61	PTR	ip-61.121.193.31.eltl.ru
31.193.121.61	A	intourist.spb.ru
31.193.121.61	A	link1.ntk-intourist.ru
31.193.121.139	A	mail.bearing-service.ru
31.193.121.139	A	mail.zaops.ru
31.193.121.170	PTR	ip-170.121.193.31.eltl.ru
31.193.121.170	A	hollywoodbar.ru
31.193.121.196	PTR	ip-196.121.193.31.eltl.ru
31.193.121.196	A	mx2.spb.ntk-intourist.ru
31.193.121.202	PTR	ip-202.121.193.31.eltl.ru
31.193.121.202	A	tulapoligrafist.ru
31.193.121.202	A	bushki.ru
31.193.121.219	PTR	ip-219.121.193.31.eltl.ru