Robtex

Up: 91.212.80.0/23
Can't show all results, try to descend to a more specific CIDR
Down left: 91.212.80.0/25
Down right: 91.212.80.128/25
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
91.212.80.1	PTR	pppoe.enterra.dp.ua
91.212.80.1	A	core.enterra.dp.ua
91.212.80.8	PTR	91.212.80.8.enterra.dp.ua
91.212.80.15	PTR	91.212.80.15.enterra.dp.ua
91.212.80.38	A+PTR	umtrans.com.ua
91.212.80.38	PTR	moon.umtrans.com.ua
91.212.80.38	A+PTR	umt.enterra.dp.ua
91.212.80.52	A+PTR	mail.avito.ua
91.212.80.52	A	pop3.avito.ua
91.212.80.52	A	mail.i-c.kiev.ua
91.212.80.54	PTR	mail.emm.dp.ua
91.212.80.54	A	mail.apparel.dp.ua
91.212.80.54	A	apparel.dp.ua
91.212.80.57	PTR	91.212.80.57.enterra.dp.ua
91.212.80.62	A+PTR	smtp.sog.com.ua
91.212.80.62	A	mail.demis.com.ua
91.212.80.62	A	mail.samex.com.ua
91.212.80.65	A	gw.dniproavia.com
91.212.80.66	A+PTR	relay.dniproavia.com
91.212.80.66	A	relay2.dniproavia.com
91.212.80.66	A	gw2.dniproavia.com
91.212.80.78	PTR	91.212.80.78.enterra.dp.ua
91.212.80.123	A	ns.onlyinfo.net
91.212.80.123	A	mail.onlyinfo.net
91.212.80.140	PTR	91.212.80.140.enterra.dp.ua
91.212.80.140	A	r1.sn-q5u5n4xg5-qo3e.googlevideo.com
91.212.80.141	A	r2.sn-q5u5n4xg5-qo3e.googlevideo.com
91.212.80.141	A	r2.sn-q5u5n4xg5-qo3e.gvt1.com
91.212.80.157	PTR	91.212.80.157.enterra.dp.ua
91.212.80.158	PTR	91.212.80.158.enterra.dp.ua
91.212.80.162	PTR	91.212.80.162.enterra.dp.ua
91.212.80.165	PTR	stat.vorotila.net
91.212.80.171	PTR	mx.west-tv.dp.ua
91.212.80.171	A	ns2.west-tv.dp.ua
91.212.80.193	PTR	miraplast-gw.enterra.dp.ua
91.212.80.196	PTR	91.212.80.196.enterra.dp.ua
91.212.80.255	PTR	91.212.80.255.enterra.dp.ua