Robtex

Up: 77.221.134.0/23
Can't show all results, try to descend to a more specific CIDR
Down left: 77.221.135.0/25
Down right: 77.221.135.128/25
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
77.221.135.10	A+PTR	77.221.135.10.addr.datapoint.ru
77.221.135.10	A	xn--80aad4ai0dh.xn--p1ai
77.221.135.10	A	lifehab.ru
77.221.135.15	A+PTR	77.221.135.15.addr.datapoint.ru
77.221.135.15	A	srv10013.infobox.ru
77.221.135.16	PTR	77.221.135.16.addr.datapoint.ru
77.221.135.16	A	megahoop.ru
77.221.135.16	A	nsk.knitism.ru
77.221.135.17	PTR	77.221.135.17.addr.datapoint.ru
77.221.135.17	A	budakvenko.ru
77.221.135.17	A	*.rauc.ru
77.221.135.18	A	xn--80aadpbj0afdc4p.xn--p1ai
77.221.135.19	PTR	srv10017.infobox.ru
77.221.135.19	A	www.ruchess.ru
77.221.135.19	A	coldhunter.ru
77.221.135.27	PTR	mail.atlastour.ru
77.221.135.35	A	77.221.135.35.addr.datapoint.ru
77.221.135.36	PTR	mail.intelenergomash.ru
77.221.135.42	PTR	mail.nordhyforce.ru
77.221.135.63	PTR	fashion-family.ru
77.221.135.64	PTR	mail.lca.ru
77.221.135.65	A	mail.komigis.ru
77.221.135.69	A+PTR	mail.riter-com.ru
77.221.135.69	A	ns.riter-com.ru
77.221.135.71	A+PTR	mail.fti-optronic.com
77.221.135.78	A+PTR	mail.nevatec.ru
77.221.135.79	A+PTR	mail.podarokcity.ru
77.221.135.84	A	77.221.135.84.addr.datapoint.ru
77.221.135.87	A	77.221.135.87.addr.datapoint.ru
77.221.135.88	A+PTR	77.221.135.88.addr.datapoint.ru
77.221.135.88	A	ooo-monolit.ru
77.221.135.93	A	mail.vitesseposuda.ru
77.221.135.95	A	77.221.135.95.addr.datapoint.ru
77.221.135.109	PTR	77.221.135.109.addr.datapoint.ru
77.221.135.109	A	russiantrapeza.ru
77.221.135.109	A	russiantrapeza.com
77.221.135.111	PTR	77.221.135.111.addr.datapoint.ru
77.221.135.111	A	spoy.ru
77.221.135.123	A+PTR	mail.herztool.ru
77.221.135.129	A	mail.profit-spb.ru
77.221.135.152	A	mail.audax.ru
77.221.135.158	A	xn----dtbedqcovchdom.xn--p1ai
77.221.135.159	PTR	77.221.135.159.addr.datapoint.ru
77.221.135.161	A	mail.egrul.ru
77.221.135.163	A	mail.copium.ru
77.221.135.167	A+PTR	mail.el-com.ru
77.221.135.170	A	mail.sibex.biz
77.221.135.182	A	mail.t3k.ru
77.221.135.189	PTR	mail.tblt.ru
77.221.135.193	PTR	77.221.135.193.addr.datapoint.ru
77.221.135.193	A	transar.ru
77.221.135.193	A	www.cdtop.ru
77.221.135.194	PTR	77.221.135.194.addr.datapoint.ru
77.221.135.194	A	ns.yarmouthadmirals.com
77.221.135.194	A	goldrushpark.org
77.221.135.200	PTR	mail.rgold.ru
77.221.135.217	A	77.221.135.217.addr.datapoint.ru
77.221.135.220	A	mail.transco.ru