Robtex

Up: 81.89.64.0/20
Can't show all results, try to descend to a more specific CIDR
Down left: 81.89.64.0/22
Down right: 81.89.68.0/22
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
81.89.64.2	PTR	ns1.teleitnercom.ru
81.89.64.2	A	ns1.teleintercom.ru
81.89.64.2	A	t50.ru
81.89.64.5	A	alpha.teleintercom.ru
81.89.64.22	A	dom-sw1.teleintercom.ru
81.89.64.26	A	zimenki-dsl1.teleintercom.ru
81.89.64.27	A	zimenki-dsl2.teleintercom.ru
81.89.64.28	A	zimenki-dsl3.teleintercom.ru
81.89.64.32	A+PTR	dav-1.teleintercom.ru
81.89.64.33	A+PTR	m9-2.teleintercom.ru
81.89.64.34	A+PTR	vid-1.teleintercom.ru
81.89.64.35	A+PTR	dom-1.teleintercom.ru
81.89.64.40	A+PTR	egor-1.teleintercom.ru
81.89.64.41	A	voskr-1.teleintercom.ru
81.89.64.42	A	shatur-1.teleintercom.ru
81.89.64.43	A+PTR	oz-2.teleintercom.ru
81.89.64.48	A+PTR	fr-1.teleintercom.ru
81.89.64.49	A	hq-rs2.teleintercom.ru
81.89.64.50	A	klin-rs1.teleintercom.ru
81.89.64.51	A	oz-as5300.teleintercom.ru
81.89.64.56	A	dom-pppoe.teleintercom.ru
81.89.64.59	A	mosgaz-rs1.teleintercom.ru
81.89.64.61	A	m9-7-1.teleintercom.ru
81.89.64.62	PTR	m9-7-rs1.mo.gtconline.ru
81.89.64.62	A	m9-7-rs1.teleintercom.ru
81.89.64.75	A	pppoe-1.teleintercom.ru
81.89.64.98	PTR	vpn.mo.gtconline.ru
81.89.64.98	PTR	mx.mo.gtconline.ru
81.89.64.98	A	vpn.teleintercom.ru
81.89.64.100	A+PTR	ftp.teleintercom.ru
81.89.64.100	A+PTR	noc-win.teleintercom.ru
81.89.64.110	A+PTR	buhmail.teleintercom.ru
81.89.64.110	PTR	mail.buhmail.teleintercom.ru
81.89.64.136	A	oz2-sw1.teleintercom.ru
81.89.64.147	A	klin-dsl1.teleintercom.ru
81.89.64.148	A	klin-dsl2.teleintercom.ru
81.89.64.149	PTR	klin-dsl3.mo.gtconline.ru
81.89.64.149	A	klin-dsl3.teleintercom.ru
81.89.64.150	A	klin-dsl5.teleintercom.ru
81.89.64.154	A	msilk-sw1.teleintercom.ru
81.89.64.213	PTR	mail.agrisovgaz.com
81.89.65.2	PTR	smtp.t50.ru
81.89.65.2	A	www.t50.ru
81.89.65.2	A	ns4.t50.ru
81.89.65.9	A+PTR	obrns.t50.ru
81.89.65.19	A	mosgaz-dsl1.teleintercom.ru
81.89.65.20	PTR	komm-dsl1.mo.gtconline.ru
81.89.65.20	A	komm-dsl1.teleintercom.ru
81.89.65.23	A	ns2.teleintercom.ru
81.89.65.83	A+PTR	voskr-dsl1.teleintercom.ru
81.89.65.85	A+PTR	voskr-sw1.teleintercom.ru
81.89.65.98	A	shatur-dsl1.teleintercom.ru
81.89.65.137	A	komm-sw1.teleintercom.ru
81.89.65.139	A	dr-dsl1.teleintercom.ru
81.89.65.174	PTR	mail.operu.ru
81.89.65.210	PTR	ns2.kambio.net
81.89.65.229	PTR	m9-sw1.gaz.teleintercom.ru
81.89.67.9	PTR	dom-9-67.dialup.teleintercom.ru
81.89.67.64	PTR	egor-64-67.dialup.teleintercom.ru
81.89.67.70	A	ns1.oao-promgaz.ru
81.89.67.82	PTR	oz-82-67.dialup.teleintercom.ru
81.89.67.82	A	gazmedia.videomost.com
81.89.67.90	PTR	oz-90-67.dialup.teleintercom.ru
81.89.67.129	PTR	oz-129-67.dialup.teleintercom.ru
81.89.67.210	PTR	210-67.static.teleintercom.ru
81.89.67.250	PTR	oz-250-67.dialup.teleintercom.ru
81.89.68.2	PTR	mosgaz-sw2.teleintercom.ru
81.89.68.66	A	dr-sw1.teleintercom.ru
81.89.68.69	A	fbox.fship.t50.ru
81.89.69.67	A+PTR	mrg.ru
81.89.69.67	A	mail.mrg.ru
81.89.69.67	A	www.mrg.ru
81.89.69.167	A	mail.gazpromavia.ru
81.89.70.2	PTR	mail.klinlab.ru
81.89.70.138	PTR	voskr-138-70.dialup.teleintercom.ru
81.89.70.147	PTR	voskr-147-70.dialup.teleintercom.ru
81.89.70.153	PTR	voskr-153-70.dialup.teleintercom.ru
81.89.70.160	PTR	voskr-160-70.dialup.teleintercom.ru
81.89.70.162	PTR	voskr-162-70.dialup.teleintercom.ru
81.89.70.171	PTR	voskr-171-70.dialup.teleintercom.ru
81.89.70.187	PTR	voskr-187-70.dialup.teleintercom.ru
81.89.70.208	PTR	vid-208-70.dialup.teleintercom.ru
81.89.70.227	PTR	oz-227-70.dialup.teleintercom.ru
81.89.71.34	A+PTR	mail.frieze.ru
81.89.71.34	A	3beep.ru
81.89.71.34	A	www.3beep.ru
81.89.71.35	A	mail.askfreeze.ru
81.89.71.50	A+PTR	mail1.gazmsk.ru
81.89.71.51	A+PTR	mail2.gazmsk.ru
81.89.71.51	A	mail2.mosregiongaz.ru
81.89.71.154	PTR	mail.sogaz.biz
81.89.71.154	PTR	mail.sogaz.net
81.89.71.154	PTR	mail.sogaz.ru
81.89.71.190	PTR	mail.malesan.ru
81.89.71.217	PTR	ktel.ru