Robtex

Up: 81.89.64.0/21
Can't show all results, try to descend to a more specific CIDR
Down left: 81.89.64.0/23
Down right: 81.89.66.0/23
(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+PTR	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
81.89.64.36	PTR	m9-1.teleintercom.ru
81.89.64.37	A	mosgaz-1.teleintercom.ru
81.89.64.38	A	klin-1.teleintercom.ru
81.89.64.39	A	oz-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
81.89.64.44	A	voskr-as5350.teleintercom.ru
81.89.64.45	A+PTR	sp-1.teleintercom.ru
81.89.64.46	A	msilk-rs1.teleintercom.ru
81.89.64.47	A	mrgaz-1.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
81.89.64.52	A	sch-1.teleintercom.ru
81.89.64.54	A	m9-rs1.teleintercom.ru
81.89.64.55	A	oz-pppoe.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
81.89.64.101	A+PTR	noc-bsd.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+PTR	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
81.89.67.22	PTR	dom-22-67.dialup.teleintercom.ru
81.89.67.29	PTR	dom-29-67.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
81.89.67.215	PTR	215-67.static.teleintercom.ru
81.89.67.250	PTR	oz-250-67.dialup.teleintercom.ru