Robtex

Up: 89.23.64.0/22
Can't show all results, try to descend to a more specific CIDR
Down left: 89.23.66.0/24
Down right: 89.23.67.0/24
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
89.23.66.50	A	elsatsrv1.elsat.rs
89.23.66.50	A	mail.tenlogic.com
89.23.66.50	A	elsat.changeip.org
89.23.66.83	A	mxsrv01.maxima.rs
89.23.67.20	PTR	postar.swisslion-takovo.com
89.23.67.21	PTR	postar.swisslion-takovo.com
89.23.67.54	PTR	server.spektar.com