Robtex

Up: 78.138.176.0/20
Can't show all results, try to descend to a more specific CIDR
Down left: 78.138.184.0/22
Down right: 78.138.188.0/22
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
78.138.184.28	PTR	28.184.138.78.in-addr.arpa
78.138.184.39	PTR	39.184.138.78.in-addr.arpa
78.138.184.41	PTR	41.184.138.78.in-addr.arpa
78.138.184.41	A	vpn.alprint.org
78.138.184.43	PTR	43.184.138.78.in-addr.arpa
78.138.184.73	PTR	73.184.138.78.in-addr.arpa
78.138.184.115	PTR	115.184.138.78.in-addr.arpa
78.138.184.119	PTR	119.184.138.78.in-addr.arpa
78.138.184.128	PTR	128.184.138.78.in-addr.arpa
78.138.184.136	PTR	136.184.138.78.in-addr.arpa
78.138.184.165	PTR	165.184.138.78.in-addr.arpa
78.138.184.186	PTR	186.184.138.78.in-addr.arpa
78.138.184.205	PTR	78.138.184.205
78.138.184.233	PTR	233.184.138.78.in-addr.arpa
78.138.186.32	PTR	32.186.138.78.in-addr.arpa
78.138.186.43	PTR	43.186.138.78.in-addr.arpa
78.138.186.52	PTR	52.186.138.78.in-addr.arpa
78.138.186.100	A+PTR	mail.zhes.ru
78.138.186.100	A	mail.tduchet.ru
78.138.186.100	A	tduchet.ru
78.138.186.132	PTR	78.138.186.132
78.138.186.132	A	monitoring16.ru
78.138.186.142	PTR	142.186.138.78.in-addr.arpa
78.138.186.158	PTR	78.138.186.158
78.138.186.203	A	mail.msh16.ru
78.138.186.223	PTR	223.186.138.78.in-addr.arpa
78.138.187.1	PTR	1.187.138.78.in-addr.arpa
78.138.187.10	PTR	10.187.138.78.in-addr.arpa
78.138.187.26	PTR	26.187.138.78.in-addr.arpa
78.138.187.35	PTR	35.187.138.78.in-addr.arpa
78.138.187.40	PTR	40.187.138.78.in-addr.arpa
78.138.187.41	PTR	41.187.138.78.in-addr.arpa
78.138.187.50	PTR	50.187.138.78.in-addr.arpa
78.138.187.57	PTR	57.187.138.78.in-addr.arpa
78.138.187.66	PTR	66.187.138.78.in-addr.arpa
78.138.187.67	PTR	67.187.138.78.in-addr.arpa
78.138.187.75	PTR	75.187.138.78.in-addr.arpa
78.138.187.80	PTR	80.187.138.78.in-addr.arpa
78.138.187.98	PTR	98.187.138.78.in-addr.arpa
78.138.187.104	PTR	104.187.138.78.in-addr.arpa
78.138.187.112	PTR	112.187.138.78.in-addr.arpa
78.138.187.113	PTR	113.187.138.78.in-addr.arpa
78.138.187.115	PTR	115.187.138.78.in-addr.arpa
78.138.187.129	PTR	129.187.138.78.in-addr.arpa
78.138.187.136	PTR	zyab.ru
78.138.187.139	PTR	139.187.138.78.in-addr.arpa
78.138.187.145	PTR	145.187.138.78.in-addr.arpa
78.138.187.153	PTR	153.187.138.78.in-addr.arpa
78.138.187.155	PTR	155.187.138.78.in-addr.arpa
78.138.187.162	PTR	162.187.138.78.in-addr.arpa
78.138.187.169	PTR	169.187.138.78.in-addr.arpa
78.138.187.170	PTR	170.187.138.78.in-addr.arpa
78.138.187.176	PTR	176.187.138.78.in-addr.arpa
78.138.187.177	PTR	177.187.138.78.in-addr.arpa
78.138.187.187	PTR	187.187.138.78.in-addr.arpa
78.138.187.189	A	mx01.vcstiv.com
78.138.187.194	PTR	194.187.138.78.in-addr.arpa
78.138.187.210	PTR	210.187.138.78.in-addr.arpa
78.138.187.211	PTR	211.187.138.78.in-addr.arpa
78.138.187.216	PTR	216.187.138.78.in-addr.arpa
78.138.187.227	PTR	227.187.138.78.in-addr.arpa
78.138.187.232	PTR	232.187.138.78.in-addr.arpa
78.138.187.233	PTR	233.187.138.78.in-addr.arpa
78.138.187.234	PTR	234.187.138.78.in-addr.arpa
78.138.187.242	PTR	242.187.138.78.in-addr.arpa
78.138.187.249	PTR	249.187.138.78.in-addr.arpa
78.138.188.129	A	centrall.nkamsk.ru
78.138.188.129	A	nkamsk.ru
78.138.188.129	A	central.nkamsk.ru
78.138.189.2	PTR	78.138.189.2
78.138.189.2	A	tng-group.ru
78.138.189.10	PTR	10.189.138.78.in-addr.arpa
78.138.189.40	PTR	40.189.138.78.in-addr.arpa
78.138.189.41	A	ldsystem.ru
78.138.189.51	PTR	78.138.189.51
78.138.189.127	A	tatritual.ru
78.138.189.127	A	mail.tatritual.ru
78.138.189.141	A	mx.oknolegko.ru
78.138.189.201	PTR	78.138.189.201
78.138.189.235	A+PTR	mail.nponts.ru
78.138.190.208	A	ns2.nkamsk.ru