Robtex

Up: 77.75.0.0/21
Can't show all results, try to descend to a more specific CIDR
Down left: 77.75.0.0/23
Down right: 77.75.2.0/23

IP	Type	Hostname
77.75.0.3	PTR	broadband-0-3.clients.extel.ru
77.75.0.12	A	web02-tip.lon.uk.voicedot.net
77.75.0.22	A	web02-tip.lon.uk.voicedot.net
77.75.0.64	PTR	broadband-0-64.clients.extel.ru
77.75.0.67	PTR	broadband-0-67.clients.extel.ru
77.75.0.103	PTR	broadband-0-103.clients.extel.ru
77.75.0.105	PTR	broadband-0-105.clients.extel.ru
77.75.0.135	PTR	broadband-0-135.clients.extel.ru
77.75.0.135	A	gateway.tescointernetphone.com
77.75.0.195	PTR	broadband-0-195.clients.extel.ru
77.75.0.205	PTR	broadband-0-205.clients.extel.ru
77.75.0.205	A	mail.nppmera.ru
77.75.0.228	PTR	broadband-0-228.clients.extel.ru
77.75.0.242	PTR	broadband-0-242.clients.extel.ru
77.75.1.15	PTR	broadband-1-15.clients.extel.ru
77.75.1.25	PTR	broadband-1-25.clients.extel.ru
77.75.1.33	PTR	broadband-1-33.clients.extel.ru
77.75.1.53	PTR	mail.jbcpl.ru
77.75.1.55	PTR	broadband-1-55.clients.extel.ru
77.75.1.58	PTR	broadband-1-58.clients.extel.ru
77.75.1.98	PTR	broadband-1-98.clients.extel.ru
77.75.1.105	PTR	broadband-1-105.clients.extel.ru
77.75.1.106	PTR	broadband-1-106.clients.extel.ru
77.75.1.109	PTR	broadband-1-109.clients.extel.ru
77.75.1.111	PTR	broadband-1-111.clients.extel.ru
77.75.1.116	PTR	broadband-1-116.clients.extel.ru
77.75.1.119	PTR	broadband-1-119.clients.extel.ru
77.75.1.120	PTR	broadband-1-120.clients.extel.ru
77.75.1.121	PTR	broadband-1-121.clients.extel.ru
77.75.1.123	PTR	broadband-1-123.clients.extel.ru
77.75.1.124	PTR	broadband-1-124.clients.extel.ru
77.75.1.138	PTR	broadband-1-138.clients.extel.ru
77.75.1.144	PTR	broadband-1-144.clients.extel.ru
77.75.1.147	PTR	broadband-1-147.clients.extel.ru
77.75.1.151	PTR	broadband-1-151.clients.extel.ru
77.75.1.154	PTR	broadband-1-154.clients.extel.ru
77.75.1.159	PTR	broadband-1-159.clients.extel.ru
77.75.1.160	PTR	broadband-1-160.clients.extel.ru
77.75.1.162	PTR	broadband-1-162.clients.extel.ru
77.75.1.167	PTR	broadband-1-167.clients.extel.ru
77.75.1.172	PTR	broadband-1-172.clients.extel.ru
77.75.1.178	A+PTR	mail.dlgrusland.ru
77.75.1.186	PTR	mx.bmw-avtoport.ru
77.75.1.190	PTR	broadband-1-190.clients.extel.ru
77.75.1.190	A	mx2.mini-avtoport.ru
77.75.1.202	PTR	broadband-1-202.clients.extel.ru
77.75.1.210	PTR	broadband-1-210.clients.extel.ru
77.75.1.214	PTR	broadband-1-214.clients.extel.ru
77.75.1.218	PTR	mail.bismark-trade.ru
77.75.1.221	PTR	broadband-1-221.clients.extel.ru
77.75.1.227	PTR	broadband-1-227.clients.extel.ru
77.75.1.234	A+PTR	mail.sks-mo.ru
77.75.1.234	A	sks-mo.ru
77.75.1.236	PTR	broadband-1-236.clients.extel.ru
77.75.1.254	PTR	broadband-1-254.clients.extel.ru
77.75.1.255	PTR	broadband-1-255.clients.extel.ru
77.75.2.122	A	ex.remtehmash.ru
77.75.2.166	PTR	broadband-2-166.clients.extel.ru
77.75.2.170	A	mail.mpmpapers.ru
77.75.2.218	PTR	mail.crystalteam.ru
77.75.3.34	A	mail.rigaland-hotel.ru
77.75.3.67	PTR	broadband-3-67.clients.extel.ru
77.75.3.114	A	fanfan.pro
77.75.3.114	A	mail1.fanfan.pro
77.75.3.174	A	ns2.sitnet.ru
77.75.3.195	A+PTR	gren.prioris.ru
77.75.3.204	PTR	broadband-3-204.clients.extel.ru
77.75.3.235	PTR	broadband-3-235.clients.extel.ru
77.75.3.235	A	mx1.upkvartal.ru