Robtex

Up: 145.255.4.0/23
Can't show all results, try to descend to a more specific CIDR
Down left: 145.255.5.0/25
Down right: 145.255.5.128/25
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
145.255.5.8	A	mxs.quartz-group.ru
145.255.5.8	A	mail.quartz-group.ru
145.255.5.10	PTR	145.255.5.10.static.ufanet.ru
145.255.5.10	A	click10y.com
145.255.5.16	A	mail.npkngf.ru
145.255.5.19	PTR	145.255.5.19.static.ufanet.ru
145.255.5.19	A	open-region.info
145.255.5.19	A	ns.openregion.info
145.255.5.24	PTR	ufanet.ch-46.ru
145.255.5.34	A	mail.profil-furnitura.ru
145.255.5.39	A	www.ufaqr.ru
145.255.5.39	A	mx.ufaqr.ru
145.255.5.39	A	ufaqr.ru
145.255.5.50	A	gk-forward.com
145.255.5.51	A	mail1.gk-forward.com
145.255.5.103	PTR	ugaik.ru
145.255.5.103	A	mx.ugaik.ru
145.255.5.119	PTR	145.255.5.119.static.ufanet.ru
145.255.5.119	A	www.fedhosting.ru
145.255.5.119	A	ns2.fedhosting.ru
145.255.5.135	PTR	145.255.5.135.static.ufanet.ru
145.255.5.135	A	mail.kitstar.ru
145.255.5.135	A	proxy-dohc.kitstar.ru
145.255.5.178	PTR	145.255.5.178.static.ufanet.ru
145.255.5.196	A+PTR	rsi102.ru
145.255.5.196	A	mail.rsi102.ru