Robtex

Up: 91.233.228.0/22
Can't show all results, try to descend to a more specific CIDR
Down left: 91.233.230.0/24
Down right: 91.233.231.0/24
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
91.233.230.0	PTR	91.233.230.0.nix.ru
91.233.230.4	A+PTR	mail.nix.ru
91.233.230.4	A	orange.nix.ru
91.233.230.5	A+PTR	asavpn.nix.ru
91.233.230.6	A+PTR	virtualwww.nix.ru
91.233.230.6	A	proektmashpribor.ru
91.233.230.6	A	oaopmp.ru
91.233.230.7	PTR	yellow.nix.ru
91.233.230.8	A+PTR	green.nix.ru
91.233.230.8	A	mail.rylevo.ru
91.233.230.8	A	mail-region.nix.ru
91.233.230.9	A	mail.proektmashpribor.ru
91.233.230.15	PTR	green.nix.ru
91.233.230.16	PTR	green.nix.ru
91.233.230.24	A+PTR	blue.nix.ru
91.233.230.25	PTR	91.233.230.25.nix.ru
91.233.230.25	A	krasnodar.nix.ru
91.233.230.27	A+PTR	dealer.nix.ru
91.233.230.28	A+PTR	mysql.nix.ru
91.233.230.38	A+PTR	orangeblade.nix.ru
91.233.230.38	A	mailgw1.nix.ru
91.233.230.46	A+PTR	mailgw2.nix.ru
91.233.230.47	PTR	mailgw1.nix.ru
91.233.230.47	A	ns4.nix.ru
91.233.230.48	PTR	www.nix.ru
91.233.230.48	A	krasnodar.nix.ru
91.233.230.48	A	www.prais.ru
91.233.230.49	PTR	web-fr.nix.ru
91.233.230.52	PTR	web-front.nix.ru
91.233.230.52	A	elista.nix.ru
91.233.230.52	A	vologda.nix.ru
91.233.230.252	PTR	ns1.afanasovo.ru
91.233.230.252	A	ns1.xn--e1afgwdede.xn--p1ai
91.233.230.252	A	www.romashka-pizza.ru
91.233.231.16	PTR	91.233.231.16.nix.ru
91.233.231.22	PTR	91.233.231.22.nix.ru
91.233.231.34	PTR	91.233.231.34.nix.ru
91.233.231.38	PTR	91.233.231.38.nix.ru
91.233.231.105	PTR	91.233.231.105.nix.ru
91.233.231.147	PTR	91.233.231.147.nix.ru
91.233.231.154	PTR	91.233.231.154.nix.ru
91.233.231.156	PTR	91.233.231.156.nix.ru
91.233.231.158	PTR	91.233.231.158.nix.ru
91.233.231.161	PTR	91.233.231.161.nix.ru
91.233.231.187	PTR	91.233.231.187.nix.ru
91.233.231.223	PTR	91.233.231.223.nix.ru
91.233.231.234	PTR	91.233.231.234.nix.ru
91.233.231.250	PTR	91.233.231.250.nix.ru
91.233.231.255	PTR	91.233.231.255.nix.ru