Robtex

Up: 89.188.192.0/18
Can't show all results, try to descend to a more specific CIDR
Down left: 89.188.224.0/20
Down right: 89.188.240.0/20
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
89.188.224.0	PTR	ip.89-188-224-0.sakhalintelecom.ru
89.188.224.2	A	st2.zaotok.com
89.188.224.10	PTR	ip.89-188-224-10.sakhalintelecom.ru.224.188.89.in-addr.arpa
89.188.224.114	PTR	mail.b-logix.ru
89.188.226.115	PTR	mbox.adm.sakhalin.ru
89.188.226.115	A	mbox.sakhadm.ru
89.188.226.118	PTR	ip.89-188-226-118.sakhalintelecom.ru
89.188.226.118	A	admsakhalin.info
89.188.226.214	PTR	ip.89-188-226-214.sakhalintelecom.ru
89.188.226.236	PTR	relay.zaoorenburg.ru
89.188.227.195	PTR	ip.89-188-227-195.sakhalintelecom.ru
89.188.229.34	A	mail1.simvoldv.ru
89.188.229.50	A	mail.khmyrov.ru
89.188.232.34	PTR	fsakhalin.ru
89.188.233.2	PTR	ip.89-188-233-2.sakhalintelecom.ru
89.188.233.90	A	coland.ru
89.188.233.90	A	mail.coland.ru
89.188.233.98	PTR	ip.89-188-233-98.sakhalintelecom.ru
89.188.233.99	PTR	ip.89-188-233-99.sakhalintelecom.ru
89.188.233.186	A	mail.ciscosakh.com
89.188.233.193	PTR	ip.89-188-233-193.sakhalintelecom.ru
89.188.233.225	PTR	ip.89-188-233-225.sakhalintelecom.ru
89.188.234.30	A	mx.zao-dtm.ru
89.188.234.35	PTR	ip.89-188-234-35.sakhalintelecom.ru
89.188.234.64	PTR	ip.89-188-234-64.sakhalintelecom.ru
89.188.234.99	PTR	ip.89-188-234-99.sakhalintelecom.ru
89.188.234.129	PTR	ip.89-188-234-129.sakhalintelecom.ru
89.188.234.131	PTR	ip.89-188-234-131.sakhalintelecom.ru
89.188.234.160	PTR	ip.89-188-234-160.sakhalintelecom.ru
89.188.234.194	PTR	ip.89-188-234-194.sakhalintelecom.ru
89.188.234.226	PTR	ip.89-188-234-226.sakhalintelecom.ru
89.188.235.35	PTR	ip.89-188-235-35.sakhalintelecom.ru
89.188.235.65	PTR	ip.89-188-235-65.sakhalintelecom.ru
89.188.236.70	A	mail01.ciscosakh.com
89.188.236.242	A	mail.snc-sakh.ru
89.188.236.242	A	snc-sakh.ru
89.188.237.0	PTR	ip.89-188-237-0.sakhalintelecom.ru
89.188.237.5	PTR	ip.89-188-237-5.sakhalintelecom.ru
89.188.237.5	A	crimson.exxonmobil.com
89.188.237.142	A	mx.ecc-veco.com
89.188.237.142	A	ecc-veco.ru
89.188.237.142	A	mx.ecc-veco.ru
89.188.237.154	PTR	trebol.ru
89.188.237.176	PTR	ip.89-188-237-176.sakhalintelecom.ru
89.188.237.226	A	sakhalin.auss.ru
89.188.238.110	A+PTR	89.188.238.110.isle.ru
89.188.238.110	A	ns.sah-chtz.ru
89.188.238.110	A	sah-chtz.ru
89.188.238.154	PTR	ip.89-188-238-154.sakhalintelecom.ru
89.188.238.154	A	ns2.sakhalin-engineering.ru
89.188.238.154	A	ns2.sakh-eng.ru
89.188.240.0	PTR	ip.89-188-240-0.sakhalintelecom.ru
89.188.240.32	PTR	ip.89-188-240-32.sakhalintelecom.ru
89.188.240.34	PTR	ip.89-188-240-34.sakhalintelecom.ru
89.188.240.35	PTR	ip.89-188-240-35.sakhalintelecom.ru
89.188.240.64	PTR	ip.89-188-240-64.sakhalintelecom.ru
89.188.240.65	PTR	ip.89-188-240-65.sakhalintelecom.ru
89.188.240.67	PTR	ip.89-188-240-67.sakhalintelecom.ru
89.188.240.96	PTR	ip.89-188-240-96.sakhalintelecom.ru
89.188.240.99	PTR	ip.89-188-240-99.sakhalintelecom.ru
89.188.240.131	PTR	ip.89-188-240-131.sakhalintelecom.ru
89.188.240.160	PTR	ip.89-188-240-160.sakhalintelecom.ru
89.188.240.162	PTR	ip.89-188-240-162.sakhalintelecom.ru
89.188.240.227	PTR	ip.89-188-240-227.sakhalintelecom.ru
89.188.242.212	A	sakhsmg.ru
89.188.246.66	PTR	ip.89-188-246-66.sakhalintelecom.ru
89.188.248.0	PTR	ip.89-188-248-0.sakhalintelecom.ru
89.188.249.2	PTR	ip.89-188-249-2.sakhalintelecom.ru
89.188.249.32	PTR	ip.89-188-249-32.sakhalintelecom.ru
89.188.249.34	PTR	ip.89-188-249-34.sakhalintelecom.ru
89.188.249.67	PTR	ip.89-188-249-67.sakhalintelecom.ru
89.188.249.97	PTR	ip.89-188-249-97.sakhalintelecom.ru
89.188.249.131	PTR	ip.89-188-249-131.sakhalintelecom.ru
89.188.249.193	PTR	ip.89-188-249-193.sakhalintelecom.ru
89.188.249.227	PTR	ip.89-188-249-227.sakhalintelecom.ru
89.188.252.26	PTR	ip.89-188-252-26.sakhalintelecom.ru
89.188.252.131	A+PTR	relay.lesnoy-dvor.ru
89.188.252.131	A	lesnoy-dvor.ru
89.188.252.136	A+PTR	mail.complex777.ru
89.188.252.238	A+PTR	mail.modus65.ru
89.188.253.74	A+PTR	relay.hodeg.ru
89.188.253.75	A+PTR	relay.p-e.cc
89.188.255.131	PTR	ip.89-188-255-131.sakhalintelecom.ru