Robtex

Up: 91.231.52.0/22
Can't show all results, try to descend to a more specific CIDR
Down left: 91.231.54.0/24
Down right: 91.231.55.0/24
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
91.231.54.0	PTR	91.231.54.00.ua.as48641.net
91.231.55.2	A	mirages.nn.net.ua
91.231.55.10	PTR	web.nn.net.ua
91.231.55.10	A	ns.homer.com.ua
91.231.55.10	A	mail.nn.net.ua
91.231.55.32	PTR	web1.ua.as48641.net
91.231.55.32	A	mail.iver.dp.ua
91.231.55.32	A	makeup.dp.ua
91.231.55.33	PTR	host2.goodnet.dp.ua
91.231.55.34	PTR	91.231.55.34.ua.as48641.net
91.231.55.34	A	vertinsky.net
91.231.55.34	A	mail.vertinsky.net
91.231.55.35	A	mail.syntegra.systems
91.231.55.35	A	syntegra.systems
91.231.55.131	PTR	91.231.55.131.ua.as48641.net
91.231.55.138	A	mail.mst.dp.ua
91.231.55.213	PTR	91.231.55.213.ua.as48641.net
91.231.55.213	A	bigle.ru
91.231.55.213	A	www.bigle.ru