Robtex

Up: 188.253.8.0/21
Can't show all results, try to descend to a more specific CIDR
Down left: 188.253.12.0/23
Down right: 188.253.14.0/23

IP	Type	Hostname
188.253.12.61	PTR	f28572.supportantz.com
188.253.12.61	A	standerkathorkshing.com
188.253.14.35	A	ns2.ari.ac.ir
188.253.14.36	A	ns.ari.ac.ir
188.253.14.36	A	sun.ari.ac.ir
188.253.14.36	A	www.ari.ac.ir
188.253.14.37	A+PTR	srvmail.ari.ac.ir
188.253.14.37	A	sun.ari.ac.ir
188.253.14.43	A	crr.ari.ac.ir
188.253.14.142	PTR	ba14b.andates.com
188.253.14.142	A	arestahoreprover.com