Robtex

Up: 91.142.80.0/23
Can't show all results, try to descend to a more specific CIDR
Down left: 91.142.81.0/25
Down right: 91.142.81.128/25
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
91.142.81.17	PTR	host17-81.miran.ru
91.142.81.17	A	mk-gw.miran.ru
91.142.81.18	PTR	host18-81.miran.ru
91.142.81.18	A	mail.antgrup.ru
91.142.81.18	A	mk.miran.ru
91.142.81.34	A+PTR	m20.miran.ru
91.142.81.34	A	ns2.uglev.com
91.142.81.34	A	ns2.uglev.org
91.142.81.46	PTR	host46-81.miran.ru
91.142.81.54	PTR	host54-81.miran.ru
91.142.81.54	A	www.pranamateco.ru
91.142.81.54	A	pranamateco.ru
91.142.81.58	PTR	m11.miran.ru
91.142.81.62	A+PTR	mx.nebo-ra.ru
91.142.81.62	A	l3.miran.ru
91.142.81.82	A+PTR	mail.suip.ru
91.142.81.90	A+PTR	mail.userv-spb.ru
91.142.81.90	A	userv-spb.ru
91.142.81.91	A	userv-spb.ru
91.142.81.92	A	mail2.userv-spb.ru
91.142.81.109	PTR	host109-81.miran.ru
91.142.81.109	A	proma-gw.miran.ru
91.142.81.110	A	proma.miran.ru
91.142.81.115	A	intra.miran.ru
91.142.81.119	PTR	vl2100.miran.ru
91.142.81.119	A	nai.su
91.142.81.120	PTR	host120-81.miran.ru
91.142.81.120	A	mail.becar.ru
91.142.81.126	PTR	host126-81.miran.ru
91.142.81.126	A	bc-rent.ru
91.142.81.133	A+PTR	mail.dmtm.ru
91.142.81.133	A	mail.stealth17.in
91.142.81.145	PTR	host145-81.miran.ru
91.142.81.147	PTR	vl2215.miran.ru
91.142.81.147	A	ruvx.org
91.142.81.147	A	www.wellsrv.ru
91.142.81.148	PTR	host148-81.miran.ru
91.142.81.149	PTR	host149-81.miran.ru
91.142.81.149	A	promgazspb.ru
91.142.81.149	A	langsup.com
91.142.81.174	PTR	host174-81.miran.ru
91.142.81.174	A	hcv-online.ru
91.142.81.186	A	speedtest.miran.ru
91.142.81.202	PTR	mail.lukoil-bunker.com
91.142.81.233	PTR	deen.ru
91.142.81.234	PTR	deen.ru
91.142.81.235	PTR	deen.ru
91.142.81.236	PTR	deen.ru
91.142.81.238	PTR	smtp2.deen.ru
91.142.81.244	PTR	host244-81.miran.ru
91.142.81.244	A	dsl.ru
91.142.81.244	A	ndns111o1.ndm9.xyz