Robtex

Up: 78.80.0.0/15
Can't show all results, try to descend to a more specific CIDR
Down left: 78.81.0.0/17
Down right: 78.81.128.0/17
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
78.81.0.254	PTR	gway-tge0-2.natm.ru
78.81.2.2	A	eth-2.2-homell.natm.ru
78.81.2.139	A+PTR	eth-2.139-homell.natm.ru
78.81.3.84	A+PTR	eth-3.84-homell.natm.ru
78.81.3.231	A+PTR	eth-3.231-homell.natm.ru
78.81.3.252	A	eth-3.252-homell.natm.ru
78.81.5.2	A+PTR	eth-5.2-homell.natm.ru
78.81.5.85	A+PTR	eth-5.85-homell.natm.ru
78.81.5.100	A+PTR	eth-5.100-homell.natm.ru
78.81.6.125	A+PTR	eth-6.125-homell.natm.ru
78.81.6.207	A+PTR	eth-6.207-homell.natm.ru
78.81.7.15	A+PTR	eth-7.15-homell.natm.ru
78.81.7.74	A+PTR	eth-7.74-homell.natm.ru
78.81.7.155	A	eth-7.155-homell.natm.ru
78.81.7.253	A	chudo7ya.ru
78.81.8.109	A	eth-8.109-homell.natm.ru
78.81.8.176	A+PTR	eth-8.176-homell.natm.ru
78.81.9.2	A	eth-9.2-homell.natm.ru
78.81.9.25	A	3xweb.ru
78.81.10.12	A+PTR	eth-10.12-homell.natm.ru
78.81.10.61	PTR	it53.ru
78.81.10.61	A	ksvn.ru
78.81.10.61	A	ip1.it53.ru
78.81.11.17	A	eth-11.17-homell.natm.ru
78.81.11.44	A+PTR	eth-11.44-homell.natm.ru
78.81.11.44	A	mail1.biarm.ru
78.81.11.216	A	eth-11.216-homell.natm.ru
78.81.13.253	A	master.natm.ru
78.81.14.20	A+PTR	eth-14.20-homell.natm.ru
78.81.14.172	A	homehts.ru
78.81.14.172	A	hts-nov.ru
78.81.14.172	A	mail.hts-nov.ru
78.81.15.221	A+PTR	eth-15.221-homell.natm.ru
78.81.15.239	A	eth-15.239-homell.natm.ru
78.81.17.12	A+PTR	eth-17.12-homell.natm.ru
78.81.17.159	A+PTR	eth-17.159-homell.natm.ru
78.81.17.243	A	eth-17.243-homell.natm.ru
78.81.18.82	A+PTR	eth-18.82-homell.natm.ru
78.81.19.124	A	activity.natm.ru
78.81.19.124	A	filarmon.natm.ru
78.81.19.124	A	kino.natm.ru
78.81.20.153	A	eth-20.153-homell.natm.ru
78.81.20.182	A	eth-20.182-homell.natm.ru
78.81.23.2	A	eth-23.2-homell.natm.ru
78.81.26.108	A	eth-26.108-homell.natm.ru
78.81.27.2	A	eth-27.2-homell.natm.ru
78.81.30.152	A	rogin.ru
78.81.30.152	A	www.bk-nov.ru
78.81.30.152	A	bk-nov.ru
78.81.31.2	PTR	eth-31.2-homell.natm.ru
78.81.32.98	A	eth-32.98-homell.natm.ru
78.81.32.196	A+PTR	eth-32.196-homell.natm.ru
78.81.33.32	PTR	eth-33.32-homell.natm.ru
78.81.34.2	A+PTR	eth-34.2-homell.natm.ru
78.81.35.162	A+PTR	eth-35.162-homell.natm.ru
78.81.38.244	A	search-class-mates.com
78.81.39.3	A	eth-39.3-homell.natm.ru
78.81.40.22	A+PTR	eth-40.22-homell.natm.ru
78.81.40.40	A+PTR	eth-40.40-homell.natm.ru
78.81.40.100	A	eth-40.100-homell.natm.ru
78.81.40.124	A	eth-40.124-homell.natm.ru
78.81.41.172	PTR	eth-172-41-81-78-homell.natm.ru
78.81.43.82	PTR	eth-82-43-81-78-homell.natm.ru
78.81.44.76	A	mail.nextoff.it
78.81.44.76	A	deltan.ru
78.81.44.76	A	vityaz-vn.ru
78.81.48.82	A	geokom.pro
78.81.48.82	A	bahily.pro
78.81.48.82	A	mail.bitminer3.com
78.81.49.7	PTR	eth-7-49-81-78-homell.natm.ru
78.81.50.15	PTR	eth-15-50-81-78-homell.natm.ru
78.81.52.10	PTR	eth-10-52-81-78-homell.natm.ru
78.81.52.13	PTR	eth-13-52-81-78-homell.natm.ru
78.81.56.181	PTR	eth-181-56-81-78-homell.natm.ru
78.81.56.239	PTR	eth-239-56-81-78-homell.natm.ru
78.81.56.239	A	narsil.ru
78.81.57.57	A	rosspack.ru
78.81.58.201	A	ip2.csnov.ru
78.81.59.15	PTR	eth-15-59-81-78-homell.natm.ru
78.81.59.111	PTR	eth-111-59-81-78-homell.natm.ru
78.81.68.197	A	www.apno.natm.ru
78.81.68.197	A	tu.natm.ru
78.81.68.197	A	e001-2-3-0.vnov.pro
78.81.180.65	A	smtp-out.verdfsawersa.ooo
78.81.198.33	A	bee.mshjr.club
78.81.205.176	A	www.jemex.ru
78.81.224.27	A+PTR	iptv-pskov.natm.ru
78.81.224.27	A	www.clubmilwaukee.com
78.81.224.27	A	clubmilwaukee.com
78.81.224.146	PTR	eth-146-224-81-78-homell.natm.ru
78.81.224.146	A	gimp-id-photo.ru
78.81.239.166	A	mhpskov.ru
78.81.240.222	A	inmarketprice.ru
78.81.242.59	A	lvp.su
78.81.251.67	A	3fly.ru
78.81.254.34	A	ns.pvi.ru
78.81.254.34	A	inside.pvi.ru
78.81.255.4	A+PTR	mail.pskpost.ru
78.81.255.4	A	gw.pskpost.ru
78.81.255.74	A	gimp-id-photo.ru
78.81.255.115	A	bti-pskov.ru