Robtex

Up: 80.69.180.0/23
Can't show all results, try to descend to a more specific CIDR
Down left: 80.69.180.0/25
Down right: 80.69.180.128/25
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
80.69.180.2	PTR	mail.nzko.su
80.69.180.2	A	nzko.su
80.69.180.3	PTR	mail.nts-h.ru
80.69.180.6	A+PTR	mx.soft-sib.ru
80.69.180.6	A	ns.soft-sib.ru
80.69.180.6	A	nsk.soft-sib.ru
80.69.180.10	PTR	mail.arbitr-nso.ru
80.69.180.12	PTR	mx.nmknsk.ru
80.69.180.12	A	nmk.siberia.net
80.69.180.20	A+PTR	velvetech.ru
80.69.180.20	A	gw2.velvetech.ru
80.69.180.22	PTR	bohmans.ru
80.69.180.22	A	mail.kpf.ru
80.69.180.23	PTR	rinsp.ru
80.69.180.29	A+PTR	dmscompany.ru
80.69.180.29	A	mail2.dms.alt.ru
80.69.180.29	A	mail.dmscompany.ru
80.69.180.32	A	deal.siberia.net
80.69.180.32	A	mx1.dealprint.ru
80.69.180.34	PTR	ao-gns.ru
80.69.180.35	A	dill.siberia.net
80.69.180.51	A	mx.dnaclub.ru
80.69.180.53	PTR	oilnsk.ru
80.69.180.56	A+PTR	sib.collector.ru
80.69.180.63	PTR	e5-nsk.ru
80.69.180.63	PTR	mail.e5-nsk.ru
80.69.180.63	PTR	mail.nts-h.ru
80.69.180.69	A+PTR	mail.transervis.ru
80.69.180.69	A	mail.grand-arena.ru
80.69.180.73	PTR	mail.gorvodokanal.com
80.69.180.74	A+PTR	3104760.ru
80.69.180.81	A	ns2.axenet.ru
80.69.180.82	A	nniit.siberia.net
80.69.180.83	A+PTR	mx2.ekran-os.ru
80.69.180.83	A	ns2.ekran-os.ru
80.69.180.83	A	ekran-os.ru
80.69.180.89	A+PTR	mx1.st-oil.com
80.69.180.89	A	mx1.vpk-oil.ru
80.69.180.89	A	st-oil.com
80.69.180.99	PTR	den.siberia.net
80.69.180.114	A	diamond.siberia.net
80.69.180.114	A	silent.siberia.net
80.69.180.120	PTR	c-users.ru
80.69.180.123	PTR	service.ns-nsk.ru
80.69.180.123	A	sznsk.ru
80.69.180.123	A	mail.sznsk.ru
80.69.180.133	A+PTR	mx.mtrad.ru
80.69.180.133	A	mtrad.ru
80.69.180.145	A+PTR	relay.sib.nissa.ru
80.69.180.164	PTR	mail.spmd.ru
80.69.180.164	A	sibenergoterm.ru
80.69.180.164	A	www.sibenergoterm.ru
80.69.180.165	PTR	service.ns-nsk.ru
80.69.180.169	A	gczn.nsk.su
80.69.180.169	A	web.gczn.nsk.su
80.69.180.170	A	ns.dtzn.nso.ru
80.69.180.170	A	nskczn.siberia.net
80.69.180.170	A	dtzn.nso.ru
80.69.180.173	A	mail.sibmashpolymer.com
80.69.180.173	A	mail.sibmashpolymer.ru
80.69.180.185	PTR	mail1.colorlon.ru
80.69.180.185	A	mail2.19a.ru
80.69.180.185	A	mail2.colorlon.ru
80.69.180.189	PTR	mail.essan.ru
80.69.180.194	A	zombezi.ru
80.69.180.196	PTR	datakrat.com
80.69.180.196	A+PTR	mail.datakrat.com
80.69.180.196	A+PTR	utils.datakrat.com
80.69.180.221	A+PTR	a.dill.ru
80.69.180.227	PTR	rekon.ru
80.69.180.227	A	mail.rekon.ru
80.69.180.227	A	www.rekon.ru
80.69.180.229	A	sibdk.siberia.net
80.69.180.247	A+PTR	smtp.prebend.ru
80.69.180.247	A	mail.abolmed.ru
80.69.180.252	A	mx.dynamex.ru