Robtex

Up: 212.33.192.0/21
Can't show all results, try to descend to a more specific CIDR
Down left: 212.33.196.0/23
Down right: 212.33.198.0/23
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
212.33.196.2	PTR	212-33-196-2.serverstrek.com
212.33.196.2	A	notificationscontrol.com
212.33.196.65	PTR	212-33-196-65.serverstrek.com
212.33.196.65	A	offersvirtualization.com
212.33.196.128	PTR	212-33-196-128.serverstrek.com
212.33.196.128	A	behaveproperly.com
212.33.196.191	PTR	212-33-196-191.serverstrek.com
212.33.196.191	A	greaterprecisions.com
212.33.196.252	PTR	212-33-196-252.serverstrek.com
212.33.196.252	A	ns1.settingsandnotifications.com
212.33.196.253	PTR	212-33-196-253.serverstrek.com
212.33.196.253	A	ns2.settingsandnotifications.com
212.33.197.74	PTR	mail.print.ir
212.33.197.74	A	mx1.parsi.ir
212.33.197.74	A	ns1.farayan.ir
212.33.197.82	A	nooran.email
212.33.197.83	A	mikrowan.net
212.33.197.83	A	ns1.noorandns.com
212.33.197.83	A	mail.eltex.ir
212.33.197.84	A	ns1.noorandns.com
212.33.197.84	A	mail.noorandns.com
212.33.197.85	PTR	nooran.com
212.33.197.85	A	mail.hoorshop.com
212.33.197.85	A	www.nooran.com
212.33.197.94	A	rasamco.com
212.33.197.94	A	golsafar.com
212.33.197.94	A	win13.morvahost.com
212.33.197.124	A	nava.ir
212.33.197.185	A	mail.nooranshowroom.ir
212.33.197.226	A	forum.shakhes24.com
212.33.197.226	A	linuxgame.ir
212.33.198.1	A	tu-from.com
212.33.198.2	PTR	212-33-198-2.serverstrek.com
212.33.198.2	A	ns1.tu-from.com
212.33.198.2	A	quicklyadjusted.com
212.33.198.3	A	ns2.tu-from.com
212.33.198.65	PTR	212-33-198-65.serverstrek.com
212.33.198.65	A	quicklytransformed.com
212.33.198.128	PTR	212-33-198-128.serverstrek.com
212.33.198.128	A	easilyhighlighted.com
212.33.198.191	PTR	212-33-198-191.serverstrek.com
212.33.198.191	A	highlightandtranslate.com
212.33.198.252	PTR	212-33-198-252.serverstrek.com
212.33.198.252	A	ns1.reallyshining.com
212.33.198.253	PTR	212-33-198-253.serverstrek.com
212.33.198.253	A	ns2.reallyshining.com
212.33.199.47	PTR	mail.aminlab.ir
212.33.199.47	A	miladlabzanjan.ir
212.33.199.47	A	zafarlab.ir