Robtex

Up: 213.176.0.0/20
Can't show all results, try to descend to a more specific CIDR
Down left: 213.176.8.0/22
Down right: 213.176.12.0/22
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
213.176.8.2	PTR	ns.aut.ac.ir
213.176.8.2	A	sepulchre.infinitylander.com
213.176.8.2	A	ns1.infinitylander.com
213.176.8.4	PTR	example.com
213.176.8.4	A	ns2.infinitylander.com
213.176.8.10	PTR	asg.aut.ac.ir
213.176.8.15	PTR	sahand.aku.ac.ir
213.176.8.15	A+PTR	sahand.aut.ac.ir
213.176.8.16	A	listserver.aut.ac.ir
213.176.8.17	PTR	ns4.aut.ac.ir
213.176.8.17	A	504169.cn
213.176.8.19	PTR	ce.aut.ac.ir
213.176.8.19	A+PTR	cic.aut.ac.ir
213.176.8.19	PTR	dena.aut.ac.ir
213.176.8.178	PTR	example.com
213.176.8.178	A	holbromasaicor.com
213.176.10.197	PTR	example.com
213.176.10.197	A	tormeusmyingoce.com
213.176.11.1	A	fw7.isu.ac.ir
213.176.11.58	A	edu2.isu.ac.ir
213.176.11.59	A	edu1.isu.ac.ir
213.176.12.6	A	dns.sanjesh.org
213.176.12.6	A	arreglalia.es