Robtex

Up: 89.208.44.0/23
Can't show all results, try to descend to a more specific CIDR
Down left: 89.208.44.0/25
Down right: 89.208.44.128/25
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
89.208.44.2	PTR	eng3.24open.ru
89.208.44.8	A	xn----7sbabaid8ae0afsgehki0cjkk.xn--p1ai
89.208.44.8	A	ns2.smslovers.ru
89.208.44.8	A	buscador.votnoshenijah.ru
89.208.44.28	A	ns1.openadv.ru
89.208.44.28	A	ns1.postmanbot.com
89.208.44.28	A	ns1.me2me.ru
89.208.44.32	PTR	eng4.24open.ru
89.208.44.56	PTR	mta.24open.ru
89.208.44.70	A	postmanbot.ru
89.208.44.70	A	postmanbot.com
89.208.44.70	A	advopen.ru
89.208.44.74	A	xn----7sbabaid8ae0afsgehki0cjkk.xn--p1ai
89.208.44.74	A	ns2.smslovers.ru
89.208.44.74	A	buscador.votnoshenijah.ru
89.208.44.80	A	wap.24open.ru
89.208.44.90	A+PTR	mail.24open.ru
89.208.44.173	A	m3.24open.ru
89.208.44.174	A	m4.24open.ru
89.208.44.176	A+PTR	m6.24open.ru
89.208.44.185	A+PTR	me2me.ru