Robtex

Up: 89.31.140.0/23
Can't show all results, try to descend to a more specific CIDR
Down left: 89.31.141.0/25
Down right: 89.31.141.128/25
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
89.31.141.10	PTR	ns.udag.net
89.31.141.10	A	server1-ns1.udagdns.net
89.31.141.10	A	ns.udagdns.net
89.31.141.100	PTR	ns2.udag.net
89.31.141.110	PTR	ns2a.dodns.net
89.31.141.110	A	dns1.emminghaus-it.net
89.31.141.110	A	ns2.viefeld.net
89.31.141.111	PTR	ns3a.dodns.net
89.31.141.111	A	ns3.klartextmedia.de
89.31.141.111	A	ns3.promotionalextranet.nl