Robtex

Up: 80.75.0.0/21
Can't show all results, try to descend to a more specific CIDR
Down left: 80.75.0.0/23
Down right: 80.75.2.0/23
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
80.75.0.2	A+PTR	ns.afranet.com
80.75.0.2	A	ns.afranet.ir
80.75.0.2	A	ns1.afranet.com
80.75.0.3	PTR	monitoring2.afranet.com
80.75.0.3	A	backupserver.afranet.com
80.75.0.4	A+PTR	faxserver.afranet.com
80.75.0.6	A+PTR	online.afranet.com
80.75.0.10	A	techsupport.afranet.com
80.75.0.11	PTR	www.afranet.com
80.75.0.13	PTR	mail.afranet.com
80.75.0.13	A	mail.clickandbuy.ir
80.75.0.13	A	mail.azmoon.org
80.75.0.16	PTR	ntp.afranet.ir
80.75.0.17	A	wwws.afranet.com
80.75.0.17	A	w3-2.afranet.com
80.75.0.19	PTR	dns.afranet.com
80.75.0.20	A+PTR	admin.afranet.com
80.75.0.20	PTR	w3-2.afranet.com
80.75.0.20	A	isp.afranet.com
80.75.0.21	PTR	isp.afranet.ir
80.75.0.21	PTR	firewall.afranet.ir
80.75.0.23	PTR	iranair.afranet.com
80.75.0.33	PTR	mail6.afranet.com
80.75.0.33	A	mail6.aframail.org
80.75.0.39	A+PTR	uptime.afranet.com
80.75.0.40	PTR	mail.afranet.co
80.75.0.40	A	oldmail.afranet.com
80.75.0.41	A+PTR	mail.jums.ac.ir
80.75.0.42	A+PTR	testmail.afranet.ir
80.75.0.42	A	test.aframail.org
80.75.0.43	PTR	mail.fax.ir
80.75.0.45	PTR	mail.navaco.ir
80.75.0.46	A+PTR	mail.wri.ac.ir
80.75.0.46	A	mail.csnrc.ir
80.75.0.47	A+PTR	mail.irenex.ir
80.75.0.50	PTR	fax.ir
80.75.0.59	A	ex.afranet.com
80.75.0.82	PTR	jupiter.ioec.com
80.75.0.193	PTR	afra-0-cis-0-0-25.afranet.com
80.75.0.200	PTR	cpeer.afranet.com
80.75.0.250	PTR	sputnik.afranet.com
80.75.1.53	A	ns1.saramad-co.com
80.75.1.53	A	ns2.saramad-co.com
80.75.1.202	PTR	mail.noorin.ir
80.75.1.202	A	795475.cn
80.75.1.202	A	mail.ncablea.com
80.75.1.227	A+PTR	mail1.irantablo.com
80.75.1.227	A	irantablo.com
80.75.1.234	PTR	mail.komtell.com
80.75.2.36	A+PTR	mail.goldiran.ir
80.75.2.36	A	hkfnmaleqgx.info
80.75.2.36	A	mail.goldiranco.com
80.75.2.44	A	ns2.goldiranco.com
80.75.2.44	A	ns2.goldiran.ir
80.75.2.44	A	ns3.goldiranco.com
80.75.2.67	A	mail.zagrosairlines.com
80.75.2.84	PTR	pluto.ioec.com
80.75.2.130	A	www.tsc.ir
80.75.2.136	A	sbkiran.ir
80.75.2.212	A	ns2.mihaninsurance.co
80.75.2.212	A	ns2.bimehmihan.ir
80.75.2.214	A	mihaninsurance.com
80.75.2.214	A	www.mihaninsurance.com
80.75.3.40	A+PTR	mx10.refah.ir
80.75.3.40	A	mail.refah.ir
80.75.3.40	A	mail.aban.ir
80.75.3.76	PTR	mail.kafsa.com
80.75.3.77	PTR	mail.kafsa.com
80.75.3.83	A	mail.taqrib.ir
80.75.3.85	A	webmail.taghrib.ir
80.75.3.85	A	mail.taghrib.ir
80.75.3.86	A	ns11.taqrib.ir
80.75.3.86	A	ns1.taqrib.ir
80.75.3.90	A	wikiwahda.com
80.75.3.90	A	wikiwahdat.com
80.75.3.90	A	wikivahdat.com
80.75.3.91	A	www.wikiwahda.com
80.75.3.142	PTR	nigceng.ir
80.75.3.143	A	appcenter123.net
80.75.3.143	A	ns2.nigceng.ir
80.75.3.178	A	mail.ramco.ir
80.75.3.198	A	mail.hamrahservice.com
80.75.3.226	A	mail.sepehrmonavar.com
80.75.3.227	A	mail.sepehrmonavar.ir