Robtex

Up: 80.64.80.0/20
Can't show all results, try to descend to a more specific CIDR
Down left: 80.64.80.0/22
Down right: 80.64.84.0/22
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
80.64.80.3	PTR	80.64.80.3.untc.net
80.64.80.3	A	best-date.ru
80.64.80.32	PTR	80.64.80.32.untc.net
80.64.80.32	A	mail.znaypad.com.ua
80.64.80.32	A	mail.diyemo.in.ua
80.64.80.43	PTR	80.64.80.43.untc.net
80.64.80.43	A	mail.marshan.com.ua
80.64.80.43	A	gate.marshan.com.ua
80.64.80.45	A	mail.pjs.kiev.ua
80.64.80.45	A	mail2.pjs.kiev.ua
80.64.80.60	A	mail1.pjs.com.ua
80.64.80.86	A	uaworx.com
80.64.80.86	A	sturmtools.com.ua
80.64.80.86	A	www.sturmtools.com.ua
80.64.80.91	PTR	80.64.80.91.untc.net
80.64.80.109	A	mail.amisaero.com
80.64.80.122	PTR	80.64.80.untc.net
80.64.80.122	A	mx.terra.pp.ua
80.64.80.171	A+PTR	mail.dive.com.ua
80.64.80.171	A	mail.aqualand.com.ua
80.64.80.214	A	www.itstream.net
80.64.81.34	PTR	80.64.81.34.untc.net
80.64.81.56	PTR	mail.rish.com.ua
80.64.81.67	A+PTR	mx1.fordon.com.ua
80.64.81.154	PTR	80.64.81.154.untc.net
80.64.82.65	A+PTR	mail.ital-tecno.com.ua
80.64.82.80	PTR	80.64.82.80.untc.net
80.64.83.0	PTR	80.64.83.0.untc.net.ua
80.64.83.163	PTR	80.64.83.163.untc.net.ua
80.64.84.25	PTR	mail.intralex.ua
80.64.84.41	PTR	mail.gullivercenter.com
80.64.84.41	A	mail2.gullivercenter.com
80.64.84.130	PTR	80.64.84.130.untc.net
80.64.84.130	A	hostmaster.b2bprime.com
80.64.84.130	A	dpro1.b2bprime.com
80.64.85.12	A	fw01.entech.com.ua
80.64.85.160	PTR	80.64.85.160.untc.net
80.64.85.195	PTR	80.64.85.195.untc.net
80.64.86.10	PTR	80.64.86.10.untc.net
80.64.86.10	A	mail.elsi.com.ua
80.64.86.10	A	smtp.elsi.com.ua
80.64.86.17	PTR	z342.com
80.64.86.19	PTR	80.64.86.19.mail.ivl.ua
80.64.86.19	A	mail.ivl.ua
80.64.86.30	A	fw01.entech.com.ua
80.64.86.30	A	mail.entech.com.ua
80.64.86.157	A	smtp.elsi.com.ua
80.64.86.157	A	invest-alliance.com.ua
80.64.87.0	PTR	80.64.87.0.untc.net
80.64.87.17	A+PTR	gate.marshan.com.ua
80.64.87.42	PTR	80.64.87.42.untc.net
80.64.87.45	A	mail.pjs.kiev.ua
80.64.87.45	A	mail2.pjs.kiev.ua
80.64.87.166	A	neurocorrection.com.ua
80.64.87.219	PTR	80.64.87.219.untc.net
80.64.87.219	A	bestmebel.tk