Robtex

Up: 84.204.128.0/19
Can't show all results, try to descend to a more specific CIDR
Down left: 84.204.144.0/21
Down right: 84.204.152.0/21
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
84.204.145.2	PTR	relay.vatsn.ru
84.204.145.74	A+PTR	z.uks.ru
84.204.145.114	A+PTR	mail.nevacables.spb.ru
84.204.145.138	PTR	mail.rocla.ru
84.204.145.164	A	eurounic.ru
84.204.145.190	A	mx.pplast.spb.ru
84.204.145.250	A+PTR	www.baltcompany.spb.ru
84.204.145.250	A	mail.baltcompany.spb.ru
84.204.145.250	A	xn----9sb2a.xn--p1ai
84.204.146.26	PTR	mail.green-side.ru
84.204.146.26	PTR	mail.greenside.ru
84.204.147.74	A+PTR	sergeev.ru
84.204.147.74	A	relay.sergeev.ru
84.204.147.74	A	ns.sergeev.ru
84.204.147.138	PTR	chess.nov.ru
84.204.148.2	PTR	84-204-148-2.tecom.ru
84.204.148.2	A	exs.lmgp.ru
84.204.148.4	PTR	84-204-148-4.tecom.ru
84.204.148.4	A	mail.toptr.ru
84.204.148.18	PTR	84-204-148-18.tecom.ru
84.204.148.21	PTR	84-204-148-21.tecom.ru
84.204.148.26	PTR	mail.ntiradio.ru
84.204.148.109	A	srv0.ru
84.204.148.130	PTR	mail.etnasoft.com
84.204.148.154	PTR	mx2.petralum.ru
84.204.148.154	A	mx2.vedunov.ru
84.204.148.154	A	mx2.bauntex.com
84.204.148.157	PTR	sadc.skraska.pro
84.204.148.188	PTR	84-204-148-188.tecom.ru
84.204.148.203	PTR	84-204-148-203.tecom.ru
84.204.148.213	A+PTR	mail.volnaspb.ru
84.204.148.213	A	router.volnaspb.ru
84.204.148.220	PTR	84-204-148-220.tecom.ru
84.204.148.220	A	animeforever.ru
84.204.148.222	A	mail.kivitrans.ru
84.204.148.226	PTR	84-204-148-226.tecom.ru
84.204.148.241	A	mail.telesoft.spb.ru
84.204.149.147	PTR	relay2.premiumrenta.ru
84.204.149.158	A+PTR	relay.premiumrenta.ru
84.204.149.158	A	ns2.metallspb.ru
84.204.152.130	PTR	dsl-ppoe-84-205-152-130.ip.peterstar.net
84.204.152.130	A	zspu.ru
84.204.152.201	PTR	dsl-ppoe-84-205-152-201.ip.peterstar.net
84.204.152.219	A+PTR	mail.hcresort.ru
84.204.154.30	A+PTR	motorola154-30.ip.peterstar.net