Robtex

Up: 89.40.20.0/23
Can't show all results, try to descend to a more specific CIDR
Down left: 89.40.20.0/25
Down right: 89.40.20.128/25
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
89.40.20.10	A+PTR	mail.oltchim.com
89.40.20.10	A+PTR	mail.oltchim.ro
89.40.20.10	A	ns3.oltchim.ro
89.40.20.21	A	test-utilitati.oltchim.ro
89.40.20.26	A	mail.oltchim.com
89.40.20.195	A	mail.stonefly.ro
89.40.20.254	A	mentchim.ro
89.40.20.254	A	ns.mentchim.ro
89.40.20.254	A	ns.ramplast.ro