Robtex

Up: 80.64.16.0/20
Can't show all results, try to descend to a more specific CIDR
Down left: 80.64.16.0/22
Down right: 80.64.20.0/22
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
80.64.16.1	A+PTR	ns.tagnet.ru
80.64.16.1	A+PTR	ns1.tagnet.ru
80.64.16.2	A+PTR	dbm.tagnet.ru
80.64.16.3	PTR	dbs.tagnet.ru
80.64.16.4	A	mq.tagnet.ru
80.64.16.8	A+PTR	ies1000-post-fe-1.tagnet.ru
80.64.16.8	A	tagnet.ru
80.64.16.8	A	barz.ru
80.64.16.9	PTR	pop.postnt.mplik.ru
80.64.16.9	PTR	smtp.postnt.mplik.ru
80.64.16.10	PTR	ies1000-post-fe-3.tagnet.ru
80.64.16.16	A	post-mux.tagnet.ru
80.64.16.18	A+PTR	new-ns.tagnet.ru
80.64.16.20	A	ies1000-ud-fe-1.tagnet.ru
80.64.16.21	A	es-4024-rbt.tagnet.ru
80.64.16.26	A	statistic.tagnet.ru
80.64.16.35	A+PTR	mx.tagnet.ru
80.64.16.35	A	webmail.tagnet.ru
80.64.16.37	A+PTR	hosting.tagnet.ru
80.64.16.61	A+PTR	ntp0.tagnet.ru
80.64.16.62	A+PTR	bgp-gw.tagnet.ru
80.64.16.67	A	lo-67.loopbacks.tagnet.ru
80.64.16.68	A	lo-68.loopbacks.tagnet.ru
80.64.16.70	A	lo-70.loopbacks.tagnet.ru
80.64.16.75	A	lo-75.loopbacks.tagnet.ru
80.64.16.77	A	lo-77.loopbacks.tagnet.ru
80.64.16.81	A+PTR	c5350.tagnet.ru
80.64.16.82	A	c5350-2.tagnet.ru
80.64.16.83	A+PTR	c5350-3.tagnet.ru
80.64.17.4	A	p-4.dialup.tagnet.ru
80.64.17.11	A	p-11.dialup.tagnet.ru
80.64.17.14	A	p-14.dialup.tagnet.ru
80.64.17.15	A	p-15.dialup.tagnet.ru
80.64.17.19	A	p-19.dialup.tagnet.ru
80.64.17.22	A	p-22.dialup.tagnet.ru
80.64.17.25	A	p-25.dialup.tagnet.ru
80.64.17.26	A	p-26.dialup.tagnet.ru
80.64.17.27	A	p-27.dialup.tagnet.ru
80.64.17.29	A	p-29.dialup.tagnet.ru
80.64.17.33	A	p-33.dialup.tagnet.ru
80.64.17.34	A	p-34.dialup.tagnet.ru
80.64.17.35	A	p-35.dialup.tagnet.ru
80.64.17.37	A	p-37.dialup.tagnet.ru
80.64.17.41	A	p-41.dialup.tagnet.ru
80.64.17.43	A	p-43.dialup.tagnet.ru
80.64.17.51	A	p-51.dialup.tagnet.ru
80.64.17.59	A	p-59.dialup.tagnet.ru
80.64.17.65	A	p-65.dialup.tagnet.ru
80.64.17.72	A	p-72.dialup.tagnet.ru
80.64.17.73	A	p-73.dialup.tagnet.ru
80.64.17.74	PTR	p-74.dialup.tagnet.ru
80.64.17.75	A+PTR	p-75.dialup.tagnet.ru
80.64.17.78	A	p-78.dialup.tagnet.ru
80.64.17.83	A	p-83.dialup.tagnet.ru
80.64.17.88	A	p-88.dialup.tagnet.ru
80.64.17.89	A	p-89.dialup.tagnet.ru
80.64.17.91	A	p-91.dialup.tagnet.ru
80.64.17.92	A	p-92.dialup.tagnet.ru
80.64.17.97	A	p-97.dialup.tagnet.ru
80.64.17.104	A	p-104.dialup.tagnet.ru
80.64.17.114	A	p-114.dialup.tagnet.ru
80.64.17.122	A	p-122.dialup.tagnet.ru
80.64.17.123	A	p-123.dialup.tagnet.ru
80.64.17.126	A	p-126.dialup.tagnet.ru
80.64.17.128	A	p-128.dialup.tagnet.ru
80.64.17.137	A	p-137.dialup.tagnet.ru
80.64.17.139	A	p-139.dialup.tagnet.ru
80.64.17.141	A	p-141.dialup.tagnet.ru
80.64.17.143	A	p-143.dialup.tagnet.ru
80.64.17.145	A	p-145.dialup.tagnet.ru
80.64.17.148	A	p-148.dialup.tagnet.ru
80.64.17.150	A	p-150.dialup.tagnet.ru
80.64.17.152	A	p-152.dialup.tagnet.ru
80.64.17.153	A	p-153.dialup.tagnet.ru
80.64.17.155	A	p-155.dialup.tagnet.ru
80.64.17.158	A	p-158.dialup.tagnet.ru
80.64.17.164	A	p-164.dialup.tagnet.ru
80.64.17.166	A	p-166.dialup.tagnet.ru
80.64.17.176	A	p-176.dialup.tagnet.ru
80.64.17.185	A+PTR	p-185.dialup.tagnet.ru
80.64.17.186	A	p-186.dialup.tagnet.ru
80.64.17.189	A	p-189.dialup.tagnet.ru
80.64.17.192	A	p-192.dialup.tagnet.ru
80.64.17.208	A	p-208.guests.tagnet.ru
80.64.17.209	A+PTR	p-209.guests.tagnet.ru
80.64.17.219	A	p-219.guests.tagnet.ru
80.64.17.226	A	p-226.dialup.tagnet.ru
80.64.17.227	A	p-227.dialup.tagnet.ru
80.64.17.232	A	p-232.dialup.tagnet.ru
80.64.17.238	A	p-238.dialup.tagnet.ru
80.64.17.246	A	p-246.dialup.tagnet.ru
80.64.17.251	A	p-251.dialup.tagnet.ru
80.64.17.254	A	p-254.dialup.tagnet.ru
80.64.18.1	PTR	smtp.postnt.mplik.ru
80.64.18.1	A	p-1-1.leased.tagnet.ru
80.64.18.1	A	postnt.mplik.ru
80.64.18.3	A	p-1-3.leased.tagnet.ru
80.64.18.8	A	p-1-8.leased.tagnet.ru
80.64.18.12	A	p-1-12.leased.tagnet.ru
80.64.18.13	A	p-1-13.leased.tagnet.ru
80.64.18.17	A	p-1-17.leased.tagnet.ru
80.64.18.18	A	p-1-18.leased.tagnet.ru
80.64.18.20	A	p-1-20.leased.tagnet.ru
80.64.18.23	A	p-1-23.leased.tagnet.ru
80.64.18.24	A	p-1-24.leased.tagnet.ru
80.64.18.26	A	p-1-26.leased.tagnet.ru
80.64.18.27	A	p-1-27.leased.tagnet.ru
80.64.18.28	A	p-1-28.leased.tagnet.ru
80.64.18.32	A	p-1-32.leased.tagnet.ru
80.64.18.35	A	p-1-35.leased.tagnet.ru
80.64.18.41	PTR	230303.ru
80.64.18.41	A	p-1-41.leased.tagnet.ru
80.64.18.42	A	p-1-42.leased.tagnet.ru
80.64.18.43	A	p-1-43.leased.tagnet.ru
80.64.18.45	PTR	xpower.tagil.ru
80.64.18.45	A	p-1-45.leased.tagnet.ru
80.64.18.52	A	p-1-52.leased.tagnet.ru
80.64.18.54	A	p-1-54.leased.tagnet.ru
80.64.18.67	A	p-1-67.leased.tagnet.ru
80.64.18.71	A	p-1-71.leased.tagnet.ru
80.64.18.72	A	p-1-72.leased.tagnet.ru
80.64.18.79	A	p-1-79.leased.tagnet.ru
80.64.18.86	A	p-1-86.leased.tagnet.ru
80.64.18.89	A+PTR	mail.bic-nt.ru
80.64.18.89	A	skdd2.ru
80.64.18.89	A	www.bic-nt.ru
80.64.18.97	PTR	kriogazpk.ru
80.64.18.97	A+PTR	mail.kriogazpk.ru
80.64.18.97	A	p-1-97.leased.tagnet.ru
80.64.18.103	A	p-1-103.leased.tagnet.ru
80.64.18.108	A	p-1-108.leased.tagnet.ru
80.64.18.109	A	p-1-109.leased.tagnet.ru
80.64.18.112	A	p-1-112.leased.tagnet.ru
80.64.18.120	A	p-1-120.leased.tagnet.ru
80.64.18.121	A	p-1-121.leased.tagnet.ru
80.64.18.126	A	p-1-126.leased.tagnet.ru
80.64.18.134	A	p-1-134.leased.tagnet.ru
80.64.18.140	A	p-1-140.leased.tagnet.ru
80.64.18.143	A	p-1-143.leased.tagnet.ru
80.64.18.144	A	p-1-144.leased.tagnet.ru
80.64.18.147	A	p-1-147.leased.tagnet.ru
80.64.18.150	A	p-1-150.leased.tagnet.ru
80.64.18.151	A	p-1-151.leased.tagnet.ru
80.64.18.152	A	p-1-152.leased.tagnet.ru
80.64.18.153	A	d-177.ru
80.64.18.153	A	dmdns.ru
80.64.18.153	A	bestpatio.ru
80.64.18.161	PTR	mail2.ntiim.ru
80.64.18.161	PTR	mail.ntiim.ru
80.64.18.161	A	p-1-161.leased.tagnet.ru
80.64.18.168	A	p-1-168.leased.tagnet.ru
80.64.18.171	A	p-1-171.leased.tagnet.ru
80.64.18.177	A	p-1-177.leased.tagnet.ru
80.64.18.182	A	p-1-182.leased.tagnet.ru
80.64.18.184	A	p-1-184.leased.tagnet.ru
80.64.18.185	A	rc-nt.ru
80.64.18.185	A	p-1-185.leased.tagnet.ru
80.64.18.185	A	www.rc-nt.ru
80.64.18.195	A	p-1-195.leased.tagnet.ru
80.64.18.197	A+PTR	mail1.okami-tagil.ru
80.64.18.197	A	ns.okami-tagil.ru
80.64.18.197	A	p-1-197.leased.tagnet.ru
80.64.18.201	A	p-1-201.leased.tagnet.ru
80.64.18.202	A	p-1-202.leased.tagnet.ru
80.64.18.205	A	www.cryont.ru
80.64.18.205	A	mail1.cryont.ru
80.64.18.209	A	p-1-209.leased.tagnet.ru
80.64.18.212	A	p-1-212.leased.tagnet.ru
80.64.18.215	A	p-1-215.leased.tagnet.ru
80.64.18.216	A	p-1-216.leased.tagnet.ru
80.64.18.217	A	p-1-217.leased.tagnet.ru
80.64.18.220	A	p-1-220.leased.tagnet.ru
80.64.18.222	A	p-1-222.leased.tagnet.ru
80.64.18.226	A	p-1-226.leased.tagnet.ru
80.64.18.229	A	p-1-229.leased.tagnet.ru
80.64.18.233	A	p-1-233.leased.tagnet.ru
80.64.18.235	A	p-1-235.leased.tagnet.ru
80.64.18.238	A	p-1-238.leased.tagnet.ru
80.64.18.240	A	p-1-240.leased.tagnet.ru
80.64.18.245	A	p-1-245.leased.tagnet.ru
80.64.18.246	A	p-1-246.leased.tagnet.ru
80.64.18.247	A	p-1-247.leased.tagnet.ru
80.64.18.249	A	p-1-249.leased.tagnet.ru
80.64.18.253	A	p-1-253.leased.tagnet.ru
80.64.18.254	A	p-1-254.leased.tagnet.ru
80.64.19.19	A	p-19-19.leased.tagnet.ru
80.64.19.20	A	p-19-20.leased.tagnet.ru
80.64.19.21	A	gbd.tagnet.ru
80.64.19.21	A	p-19-21.leased.tagnet.ru
80.64.19.65	A	mx.tagilka.ru
80.64.19.65	A	ns.tagilka.ru
80.64.19.66	A	tagilka.ru
80.64.19.99	A	relay20.ntspi.ru
80.64.19.99	A	ns.ntspi.ru
80.64.19.99	A	ntspi.ru
80.64.19.117	PTR	mail.express-host.ru
80.64.19.117	A	sms-ka.net
80.64.19.117	A	sugar-crm.ru
80.64.19.129	A	mail.tagilenergo.ru
80.64.19.145	A+PTR	mef.tagnet.ru
80.64.19.145	A	ns.mef.tagnet.ru
80.64.19.153	A	mail.xn----itbjzfhie.xn--p1ai
80.64.19.153	A	www.xn----itbjzfhie.xn--p1ai
80.64.19.153	A	xn----itbjzfhie.xn--p1ai
80.64.19.197	PTR	mef.tagnet.ru
80.64.19.197	A	mef2.e-tagil.ru
80.64.19.198	A	es-4024-fe2.tagnet.ru
80.64.19.253	PTR	mail.voda-nt.ru
80.64.19.253	A	www.voda-nt.ru
80.64.20.1	A	ntiustu.ru
80.64.20.1	A	nuk-tagnet.ntiustu.ru
80.64.20.20	A	nti.urfu.ru
80.64.20.20	A	mx2.ntiustu.ru
80.64.20.20	A	www.ntiustu.ru
80.64.20.111	A	www.ligrenok.ru
80.64.20.111	A	ligrenok.ru
80.64.21.1	PTR	ns1.tagnet.hn
80.64.21.1	A+PTR	ns2.tagnet.ru
80.64.21.1	A	ns.palladant.ru
80.64.22.1	A+PTR	tagilmed.ru
80.64.22.1	A	ns.tagmed.ru
80.64.22.1	A	ns.tagilmed.ru
80.64.22.248	A	www.tesnt.ru
80.64.22.249	A	xn--80aajajbild0awhh0argl4q.xn--p1ai
80.64.22.253	A	server.tesnt.ru
80.64.22.253	A	server.xn--80aajajbild0awhh0argl4q.xn--p1ai