Robtex

Up: 77.71.96.0/20
Can't show all results, try to descend to a more specific CIDR
Down left: 77.71.96.0/22
Down right: 77.71.100.0/22
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
77.71.96.1	PTR	gw.skynet-bg.net
77.71.96.6	A+PTR	mail.skynet-bg.net
77.71.96.6	A+PTR	ns1.skynet-bg.net
77.71.96.6	A+PTR	www.skynet-bg.net
77.71.96.50	A	ns.tradernet.eu
77.71.96.50	A	ns.guest-house-kiwi.com
77.71.96.50	A	ns.koledjikov.bg
77.71.96.69	A	serv2.lolbg.net
77.71.99.7	A	mail.vtpg-stroimat.com
77.71.99.7	A	ns1.smartbooks-bg.com
77.71.99.7	A	www.mebelidomino.com
77.71.99.50	PTR	ip-99-50.skynet-bg.net
77.71.99.50	A	ns.kosachki.com
77.71.99.140	A	ns1.steitfish.com
77.71.99.140	A	plana-engineering.bg
77.71.99.140	A	vtpg-stroimat.com
77.71.100.145	PTR	ip-100-145.skynet-bg.net
77.71.102.15	A	mail.flashnt.com
77.71.103.2	PTR	ip-103-2.skynet-bg.net
77.71.103.3	PTR	ip-103-3.skynet-bg.net
77.71.103.8	PTR	ip-103-8.skynet-bg.net
77.71.103.16	PTR	ip-103-16.skynet-bg.net
77.71.103.17	PTR	ip-103-17.skynet-bg.net
77.71.103.18	PTR	ip-103-18.skynet-bg.net
77.71.103.26	PTR	ip-103-26.skynet-bg.net
77.71.103.32	PTR	ip-103-32.skynet-bg.net
77.71.103.34	PTR	ip-103-34.skynet-bg.net
77.71.103.35	PTR	ip-103-35.skynet-bg.net
77.71.103.50	PTR	ip-103-50.skynet-bg.net
77.71.103.56	PTR	ip-103-56.skynet-bg.net
77.71.103.58	PTR	ip-103-58.skynet-bg.net
77.71.103.59	PTR	ip-103-59.skynet-bg.net
77.71.103.80	PTR	ip-103-80.skynet-bg.net
77.71.103.96	PTR	ip-103-96.skynet-bg.net
77.71.103.98	PTR	ip-103-98.skynet-bg.net
77.71.103.104	PTR	ip-103-104.skynet-bg.net
77.71.103.114	PTR	ip-103-114.skynet-bg.net
77.71.103.115	PTR	ip-103-115.skynet-bg.net
77.71.103.121	PTR	ip-103-121.skynet-bg.net
77.71.103.123	PTR	ip-103-123.skynet-bg.net
77.71.103.129	PTR	ip-103-129.skynet-bg.net
77.71.103.130	PTR	ip-103-130.skynet-bg.net
77.71.103.131	PTR	ip-103-131.skynet-bg.net
77.71.103.139	PTR	ip-103-139.skynet-bg.net
77.71.103.163	PTR	ip-103-163.skynet-bg.net
77.71.103.176	PTR	ip-103-176.skynet-bg.net
77.71.103.179	PTR	ip-103-179.skynet-bg.net
77.71.103.184	PTR	ip-103-184.skynet-bg.net
77.71.103.187	PTR	ip-103-187.skynet-bg.net
77.71.103.193	PTR	ip-103-193.skynet-bg.net
77.71.103.195	PTR	ip-103-195.skynet-bg.net
77.71.103.202	PTR	ip-103-202.skynet-bg.net
77.71.103.203	PTR	ip-103-203.skynet-bg.net
77.71.103.210	PTR	ip-103-210.skynet-bg.net
77.71.103.216	PTR	ip-103-216.skynet-bg.net
77.71.103.224	PTR	ip-103-224.skynet-bg.net
77.71.103.233	PTR	ip-103-233.skynet-bg.net