Robtex

Up: 213.171.0.0/18
Can't show all results, try to descend to a more specific CIDR
Down left: 213.171.0.0/20
Down right: 213.171.16.0/20
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
213.171.1.38	PTR	mail.lubodorogo.ru
213.171.1.38	A+PTR	mail2.lubodorogo.ru
213.171.1.58	A	krd.gazprombank.ru
213.171.1.86	A+PTR	post.shoptrec.ru
213.171.1.90	PTR	ns.informnet.ru
213.171.1.90	A	line.travel
213.171.1.90	A	kuban-info.pro
213.171.1.190	A+PTR	mail.kubanfarm.ru
213.171.1.194	A	mail3.region2014.ru
213.171.1.227	PTR	gt-avto.com
213.171.2.6	A+PTR	ns2.com-link.ru
213.171.2.6	A	ns2.xn--h1adbceid.xn--p1ai
213.171.2.10	PTR	ns.com-link.ru
213.171.2.10	A	ns.opti-link.ru
213.171.2.10	A	ns.xn--h1adbceid.xn--p1ai
213.171.2.11	PTR	mail.23oil.ru
213.171.2.11	PTR	mail.com-link.ru
213.171.2.11	PTR	mail.com-tur.ru
213.171.2.12	PTR	www.com-link.ru
213.171.2.66	PTR	mail.meditour.cz
213.171.2.66	PTR	mail.meditourgroup.eu
213.171.2.66	PTR	mail.meditourgroup.ru
213.171.2.70	A	com-tur.ru
213.171.2.75	A	bioenergogroup.com
213.171.3.137	PTR	ns.kubstu.ru
213.171.4.3	A	ns1.kubstu1.ru
213.171.4.138	A	web.kubstu.ru
213.171.4.138	A	*.kubstu.ru
213.171.4.138	A	kubstu.ru
213.171.4.196	A	nat.kubstu.ru
213.171.6.5	A	trade.gz-kuban.ru
213.171.6.7	A	qm.gz-kuban.ru
213.171.6.17	A	mtrade.gz-kuban.ru
213.171.10.1	PTR	com-link.ru
213.171.11.193	A+PTR	mail.yugregion.info
213.171.11.193	A	yugregion.info
213.171.11.204	PTR	cons23.ru
213.171.11.204	A	www.gold-key.biz
213.171.11.206	A+PTR	corp.93.ru
213.171.13.37	A	www.glazavezde.ru
213.171.13.37	A	www.vrgteu.ru
213.171.13.37	A	glazavezde.ru
213.171.13.146	A+PTR	mars4.kuben.elektra.ru
213.171.13.147	A	kuben.elektra.ru
213.171.13.147	A	ns1.kuben.elektra.ru
213.171.13.163	A	ext-4.kuben.elektra.ru
213.171.13.164	A	ext-4.kuben.elektra.ru
213.171.13.233	A	k-lab.su
213.171.14.17	A	firewall.kubstu.ru
213.171.14.26	A+PTR	ns.kubstu.ru
213.171.14.26	A	qmailadmin.kubstu.ru
213.171.14.27	A	ns2.kubstu.ru
213.171.21.39	A	rainbowfancydress.co.uk