Robtex

Up: 80.77.32.0/21
Can't show all results, try to descend to a more specific CIDR
Down left: 80.77.32.0/23
Down right: 80.77.34.0/23
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
80.77.32.1	PTR	batarejka.vostok.net
80.77.32.8	A	gektor.vostok.net
80.77.32.31	PTR	vd.lutsk.ua
80.77.32.39	PTR	ratail.datagroup.ua
80.77.32.44	PTR	dragon.cit-ua.net
80.77.32.59	PTR	ratail.datagroup.ua
80.77.32.76	A	fido.vostok.net
80.77.32.77	PTR	ns1.vostok.net
80.77.32.82	A	nirvana.vostok.net
80.77.32.83	A	ball.vostok.net
80.77.32.84	A	susanin-nirvana.vostok.net
80.77.32.98	PTR	ns2.vostok.net
80.77.32.101	A	gw-arka.vostok.net
80.77.32.102	A+PTR	arka.kharkov.com
80.77.32.122	A	tyra.vostok.net
80.77.32.125	A	proton-nirvana.vostok.net
80.77.32.126	A	nirvana-proton.vostok.net
80.77.32.130	A+PTR	shev.vostok.net
80.77.32.138	A	whitehouse.vostok.net
80.77.32.146	A	jimmy.vostok.net
80.77.32.149	A	vostok-up2.vostok.net
80.77.32.150	A	up2-vostok.vostok.net
80.77.32.166	A	asotel-proect.vostok.net
80.77.32.170	A	karlson.vostok.net
80.77.32.173	A	amts-rusradio.vostok.net
80.77.32.174	PTR	ratail.datagroup.ua
80.77.32.174	A	rusradio.vostok.net
80.77.32.178	A	silver.vostok.net
80.77.32.184	A	rock.com.ua
80.77.32.184	A	shuvaev.kharkov.com
80.77.32.184	A	w3.vostok.net
80.77.32.193	A+PTR	borki-sah.vostok.net
80.77.32.193	A	kompakt.com.ua
80.77.32.194	A	sah.vostok.net
80.77.32.201	A	malysh-rr.vostok.net
80.77.32.202	PTR	ratail.datagroup.ua
80.77.32.214	A	sat.vostok.net
80.77.32.225	PTR	kenn.vostok.net
80.77.32.226	A	rainbow.vostok.net
80.77.32.237	A	garm-tower.vostok.net
80.77.32.238	A	tower-garm.vostok.net
80.77.32.242	A	mars.vostok.net
80.77.32.253	A	gw-hive.vostok.net
80.77.32.254	A+PTR	hive.vostok.net
80.77.33.13	A	gw-privatbank.vostok.net
80.77.33.14	A	privatbank.kharkov.com
80.77.33.18	A	qualita.kharkov.com
80.77.33.34	PTR	rateil.datagroup.ua
80.77.33.38	A	kvantprint.kharkov.com
80.77.33.54	A+PTR	echo.kharkov.com
80.77.33.62	A	werdy.kharkov.com
80.77.33.70	A+PTR	profrt.kharkov.com
80.77.33.72	PTR	rateil.datagroup.ua
80.77.33.72	A	point72.vostok.net
80.77.33.91	A	marbel.kharkov.com
80.77.33.109	A	prodzerno.kharkov.com
80.77.33.121	A+PTR	statim.kharkov.com
80.77.33.122	A+PTR	intels.kharkov.com
80.77.33.126	A	statim2.kharkov.com
80.77.33.154	PTR	rabota.kharkov.com
80.77.33.157	A	gw-ruslan.vostok.net
80.77.33.158	A	ruslan.kharkov.com
80.77.33.173	A	gw-ruslan2.vostok.net
80.77.33.174	A	ruslan2.kharkov.com
80.77.33.177	A	gw-mbs.vostok.net
80.77.33.182	A	andy-home.vostok.net
80.77.33.186	A	oliynik.kharkov.com
80.77.33.190	A	privat-loz.kharkov.com
80.77.33.203	A	davidenko.kharkov.com
80.77.33.216	A	korobets.kharkov.com
80.77.33.221	A+PTR	karlson-sat.vostok.net
80.77.33.222	A	sat-karlson.vostok.net
80.77.33.238	A+PTR	rdns.onehost.pp.ua
80.77.33.238	A	dc-8a68eb0b9624.onehost.pp.ua
80.77.33.239	A	shidavia.kharkov.com
80.77.33.247	A	dovgij.kharkov.com
80.77.33.253	A	ursakij.kharkov.com
80.77.34.17	A	karlson-re3.kharkov.com
80.77.34.23	PTR	ratail.datagroup.ua
80.77.34.23	A	dns3.techhandz.ru
80.77.34.27	A	intervuz.kharkov.com
80.77.34.39	A	playtech.kharkov.com
80.77.34.44	A	shangli.kharkov.com
80.77.34.50	A	antares.kharkov.com
80.77.34.51	A	makfa.kharkov.com
80.77.34.60	A	autosouz.kharkov.com
80.77.34.81	A	sst-clients-gw.kharkov.com
80.77.34.82	A	altujeva.kharkov.com
80.77.34.89	A+PTR	rainbow-tp.vostok.net
80.77.34.100	A	sergey.kharkov.com
80.77.34.106	A+PTR	mg.kture.kharkov.ua
80.77.34.124	PTR	kaa.kharkov.com
80.77.34.129	A	malysh-bogd-gw.vostok.net
80.77.34.130	A	respekt.kharkov.com
80.77.34.131	A	satep.kharkov.com
80.77.34.132	PTR	ep.kharkov.com
80.77.34.145	A	proton-gw3.vostok.net
80.77.34.149	A	tomogr.kharkov.com
80.77.34.156	PTR	ratail.datagroup.ua
80.77.34.156	A	mail.merzzul.com
80.77.34.156	A	merzzul.com
80.77.34.171	A	vikna-lux.kharkov.com
80.77.34.172	A	ford.kharkov.com
80.77.34.181	A	garm-evrotek.vostok.net
80.77.34.186	A	sh46.kharkov.com
80.77.34.190	PTR	infonet.vostok.net
80.77.34.190	A	ns1.ingwest.net
80.77.34.190	A	ns1.korizza.com.ua
80.77.34.193	PTR	nirvana-euro.vostok.net
80.77.34.197	PTR	ratail.datagroup.ua
80.77.34.201	A	rainbow-steel.vostok.net
80.77.34.202	A+PTR	rr-steel.vostok.net
80.77.34.205	A	rainbow-mono.vostok.net
80.77.34.206	A	monocrystal.vostok.net
80.77.34.206	A	mono-rainbow.vostok.net
80.77.34.225	A	rr-mono.vostok.net
80.77.34.226	A	mono-rr.vostok.net
80.77.34.242	A	trk.kharkov.com
80.77.34.253	A	rr-rainbow.vostok.net
80.77.34.254	A	rainbow-rr.vostok.net
80.77.35.1	A	relay2.vostok.net
80.77.35.1	A	proxy.vostok.net
80.77.35.1	A	smtp.vostok.net
80.77.35.7	A	ortho.com.ua
80.77.35.7	A	smart.vostok.net
80.77.35.27	A	aurora.vostok.net
80.77.35.55	A	susanin.vostok.net
80.77.35.60	A+PTR	guru.vostok.net
80.77.35.62	A	dial-062-0.online.vostok.net
80.77.35.71	PTR	ratail.datagroup.ua
80.77.35.85	PTR	ratail.datagroup.ua
80.77.35.153	PTR	dial-009-1.online.vostok.net
80.77.35.168	A+PTR	dial-008-2.online.vostok.net
80.77.35.251	PTR	dial-003-9.online.vostok.net
80.77.35.255	PTR	dial-007-9.online.vostok.net