Robtex

Up: 77.41.128.0/19
Can't show all results, try to descend to a more specific CIDR
Down left: 77.41.144.0/21
Down right: 77.41.152.0/21
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
77.41.144.162	A+PTR	gsrb.ru
77.41.144.162	A+PTR	www.gsrb.ru
77.41.144.163	A+PTR	mail.gsrb.ru
77.41.144.164	A+PTR	ns1.gsrb.ru
77.41.144.166	PTR	mail.cikrb.ru
77.41.144.250	A	relay.bscgrand.ru
77.41.144.250	A	bscgrand.ru
77.41.145.46	A	mail.megalogistika.info
77.41.147.18	PTR	codesign.me
77.41.147.18	PTR	gruzmaster.org
77.41.147.18	PTR	bukety63.ru
77.41.147.131	A	isl-hub-02.komissarzhevskoy10.voronezh.gldn.net
77.41.147.132	A	isl-hub-03.komissarzhevskoy10.voronezh.gldn.net
77.41.147.133	A	isl-hub-04.komissarzhevskoy10.voronezh.gldn.net
77.41.147.134	A	isl-hub-05.komissarzhevskoy10.voronezh.gldn.net
77.41.147.145	A	isl-hub-16.komissarzhevskoy10.voronezh.gldn.net
77.41.149.98	A	mail.vvvcompany.ru
77.41.149.98	A	mail.m7tp.ru
77.41.149.98	A	mail.moscityline.ru
77.41.149.114	A+PTR	mail.putzmeister.ru
77.41.150.67	A	ubank-b2b.com
77.41.150.68	A	support.ubank.su
77.41.150.68	A	ubank.su
77.41.150.68	A	upay.su
77.41.150.82	A	ubank.ru
77.41.150.82	A	www.ubank.ru
77.41.150.142	A	xn--c1aepcelecjfv2kh.xn--p1ai
77.41.150.142	A	mail.ugtehelektro.ru
77.41.150.142	A	mail.ugpromelektro.ru
77.41.150.214	A+PTR	mail.uapo.ru
77.41.150.243	A	optan.ru
77.41.151.5	A+PTR	mail.rifar.info
77.41.151.5	A	rifar.info
77.41.151.161	A	remote.avers-it.com
77.41.151.163	A	mail.apteki-kubani.ru
77.41.151.163	A	mupkgau.ru
77.41.151.234	A	mail.rnchel.ru
77.41.152.50	A	tvkanal1.tvervodokanal.ru
77.41.153.107	A	gt.jamtrade.ru
77.41.153.107	A	mail.jamtrade.ru
77.41.153.107	A	gt.xn--d1aes1e.xn--p1ai
77.41.153.167	A+PTR	mail.lidermetall.com
77.41.153.167	A	mail.tdmebel.com
77.41.155.214	A	mail.set64.ru
77.41.155.214	A	emk.ru
77.41.155.214	A	set64.ru
77.41.156.18	A	comp203.gercules.org
77.41.156.18	A	comp215.gercules.org
77.41.156.18	A	www.gercules.org
77.41.156.202	A	krasnodar-speedtest.corbina.net
77.41.157.134	A	mx.gns.su
77.41.157.238	A	mailvt.alliancekhv.ru
77.41.158.4	A	doit-team.ru