Robtex

Up: 89.235.68.0/23
Can't show all results, try to descend to a more specific CIDR
Down left: 89.235.68.0/25
Down right: 89.235.68.128/25
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
89.235.68.2	A+PTR	ns1.fanaptelecom.net
89.235.68.2	A	ns1.virasrv1.ir
89.235.68.2	A	mail.torange.com
89.235.68.3	PTR	www.fanaptelecom.net
89.235.68.3	A	fanapmobile.ir
89.235.68.3	A	fanaptelecom.ir
89.235.68.4	A+PTR	mail.fanaptelecom.ir
89.235.68.4	A	mail.fanapmobile.ir
89.235.68.4	A	mail.fanaptelecom.net
89.235.68.5	A+PTR	ns3.fanaptelecom.net
89.235.68.5	A	ns4.fanaptelecom.net
89.235.68.5	A	fanaptelecom.net