Robtex

Up: 178.161.144.0/21
Can't show all results, try to descend to a more specific CIDR
Down left: 178.161.144.0/23
Down right: 178.161.146.0/23
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
178.161.144.50	PTR	178.161.144.50.ipn.v4.saturn-internet.ru
178.161.144.50	A	home.perminfo.com
178.161.144.50	A	mx2.perminfo.com
178.161.144.94	A	remote.revitech.ru
178.161.144.118	A+PTR	mail.permkdkb.ru
178.161.144.118	A	b22.gdkb15.ru
178.161.144.126	A	permkdkb.ru
178.161.144.126	A	gdkb15.ru
178.161.144.150	A	mail1.a-drive.ru
178.161.144.210	PTR	178.161.144.210.ipn.v4.saturn-internet.ru
178.161.144.218	PTR	178.161.144.218.ipn.v4.saturn-internet.ru
178.161.144.218	A	relax59.ru
178.161.144.234	A	mail.permovoshi.ru
178.161.145.6	PTR	mail.uni.perm.ru
178.161.145.118	PTR	mx.smlogistika.ru
178.161.145.118	A	mx.smslogistika.ru
178.161.145.123	A	ns2.internet-urala.ru
178.161.145.123	A	mail2.rti.perm.ru
178.161.145.123	A	rti.perm.ru
178.161.145.130	A+PTR	mail2.permenergo.ru
178.161.145.174	A+PTR	mail.sealur.ru
178.161.145.202	PTR	sparta.perm.ru
178.161.145.202	A+PTR	mail.spartasport.ru
178.161.145.202	A	mail.sparta.perm.ru
178.161.146.2	A	pzmash.perm.ru
178.161.146.2	A	ns2.pzmash.perm.ru
178.161.146.98	PTR	npcro.ru
178.161.146.106	A	ns2.xsolla.com
178.161.146.250	A	mail.jcomp.ru
178.161.147.38	PTR	178.161.147.38.ipn.v4.saturn-internet.ru
178.161.147.42	A+PTR	mail.labteh.perm.ru
178.161.147.42	A	labteh.perm.ru
178.161.147.42	A	ns.labteh.perm.ru
178.161.147.130	A+PTR	mail.izoteh.perm.ru
178.161.147.130	A	xn--e1adczut.xn--p1ai
178.161.147.130	A	system.perm.ru
178.161.147.182	PTR	178.161.147.182.ipn.v4.saturn-internet.ru
178.161.147.182	A	ns1.polluks.perm.ru
178.161.147.202	PTR	178.161.147.202.ipn.v4.saturn-internet.ru
178.161.147.218	A+PTR	mail.bmw-abperm.ru