Robtex

Up: 212.50.248.0/21
Can't show all results, try to descend to a more specific CIDR
Down left: 212.50.252.0/23
Down right: 212.50.254.0/23
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
212.50.253.1	A+PTR	212.50.253.1.16clouds.com
212.50.253.1	A	atlas110.com
212.50.253.19	A	wtciran.com
212.50.255.3	A	ns1.etvto.ir
212.50.255.3	A	ns2.itetvto.ir
212.50.255.6	A	webhost.etvto.ir
212.50.255.7	A	itetvto.ir
212.50.255.7	A	www.itetvto.ir
212.50.255.10	A	ns3.etvto.ir
212.50.255.10	A	ns3.itetvto.ir
212.50.255.136	A	shahrasemani.com
212.50.255.136	A	shahrasemani.ir
212.50.255.187	A	baznews.ir
212.50.255.188	A	hostmaster.eccim.com
212.50.255.188	A	eccim.net
212.50.255.188	A	spx.ir
212.50.255.243	A	vakeelyar.com
212.50.255.243	A	artplu3.ir
212.50.255.243	A	tazini.ir