Robtex

Up: 77.41.144.0/20
Can't show all results, try to descend to a more specific CIDR
Down left: 77.41.144.0/22
Down right: 77.41.148.0/22
(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
77.41.147.137	A	isl-hub-08.komissarzhevskoy10.voronezh.gldn.net
77.41.147.139	A	isl-hub-10.komissarzhevskoy10.voronezh.gldn.net
77.41.147.140	A	isl-hub-11.komissarzhevskoy10.voronezh.gldn.net
77.41.147.141	A	isl-hub-12.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
77.41.150.74	A	mailx.intaxi.ru
77.41.150.74	A	intaxi.ru
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