Robtex

Up: 91.98.28.0/23
Can't show all results, try to descend to a more specific CIDR
Down left: 91.98.28.0/25
Down right: 91.98.28.128/25
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
91.98.28.0	PTR	91.98.28.0.pol.ir
91.98.28.10	PTR	91.98.28.10.pol.ir
91.98.28.34	PTR	booking.homares.ir
91.98.28.42	PTR	91.98.28.42.pol.ir
91.98.28.42	A	ns1.mirnezhad.ir
91.98.28.42	A	ns2.update-eset.ir
91.98.28.50	PTR	91.98.28.50.pol.ir
91.98.28.50	A	ns2.shahreman.ir
91.98.28.50	A	shahreman.ir
91.98.28.58	A+PTR	mail.pekachemie.com
91.98.28.58	A	www.pekachemie.com
91.98.28.58	A	pekachemie.com
91.98.28.66	PTR	91.98.28.66.pol.ir
91.98.28.66	A	medikoapp.com
91.98.28.66	A	web-center.ir
91.98.28.68	PTR	91.98.28.68.pol.ir
91.98.28.72	PTR	91.98.28.72.pol.ir
91.98.28.72	A	files.tanama.ir
91.98.28.75	PTR	91.98.28.75.pol.ir
91.98.28.75	A	raytayhou.ir
91.98.28.75	A	ns2.sinacoloring.com
91.98.28.77	PTR	91.98.28.77.pol.ir
91.98.28.77	A	www.digitaalo.com
91.98.28.77	A	www.asiabalborz.com
91.98.28.78	PTR	91.98.28.78.pol.ir
91.98.28.78	A	ns2.digikala.com
91.98.28.79	A	mail.filterjonoob.ir
91.98.28.79	A	shora-fars.ir
91.98.28.79	A	www.shora-fars.ir
91.98.28.80	PTR	ipserver.91.98.28.80.afaghhost.com
91.98.28.84	A	dns1.niknet.co
91.98.28.84	A	skin-store.ir
91.98.28.84	A	karimifirozjaei.com
91.98.28.85	A	www.markazebeton.com
91.98.28.85	A	hotelsupp.com
91.98.28.85	A	markazebeton.com
91.98.28.88	PTR	91.98.28.88.pol.ir
91.98.28.88	A	masterwork.ir
91.98.28.88	A	senfino.ir
91.98.28.92	PTR	91.98.28.92.pol.ir
91.98.28.95	PTR	91.98.28.95.pol.ir
91.98.28.95	A	etoolsco.com
91.98.28.97	PTR	91.98.28.97.pol.ir
91.98.28.97	A	digiforum.ir
91.98.28.97	A	digitalkala.ir
91.98.28.98	PTR	91.98.28.98.pol.ir
91.98.28.98	A	www.digitalkala.ir
91.98.28.98	A	mx0.brandgeist.de
91.98.28.106	A	techstore.ir
91.98.28.138	A	www.e1009.ir
91.98.28.138	A	e1009.ir
91.98.28.146	A	www.uhlsportfootball.com
91.98.28.150	PTR	91.98.28.150.pol.ir
91.98.28.150	A	parsisys.ir
91.98.28.154	PTR	91.98.28.154.pol.ir
91.98.28.154	A	sibche.com
91.98.28.154	A	s12.sibche.ir
91.98.28.162	PTR	91.98.28.162.pol.ir
91.98.28.164	PTR	91.98.28.164.pol.ir
91.98.28.164	A	mail.jz.ac.ir
91.98.28.171	PTR	91.98.28.171.pol.ir
91.98.28.171	A	mail.jz-dns.com
91.98.28.171	A	ns1.jz.ac.ir
91.98.28.172	PTR	91.98.28.172.pol.ir
91.98.28.172	A	ns2.jz-dns.com
91.98.28.174	PTR	91.98.28.174.pol.ir
91.98.28.174	A	vujz.ir
91.98.28.174	A	www.vujz.ir
91.98.28.179	PTR	91.98.28.179.pol.ir
91.98.28.179	A	www.najva.net
91.98.28.179	A	ghandab.com
91.98.28.180	PTR	91.98.28.180.pol.ir
91.98.28.180	A	www.masaf-ar.com
91.98.28.180	A	mehremahdavi.ir
91.98.28.181	A	masaf.xyz
91.98.28.182	PTR	91.98.28.182.pol.ir
91.98.28.182	A	hussainpbuh.com
91.98.28.182	A	ghadimalehsan.com
91.98.28.187	PTR	91.98.28.187.pol.ir
91.98.28.187	A	rayanparsi.com
91.98.28.187	A	xn----ymcbeko0a1c3i14b7ke.net
91.98.28.188	PTR	91.98.28.188.pol.ir
91.98.28.188	A	yotsuba.opera-mini4you.ru
91.98.28.188	A	berlytrading.com
91.98.28.189	PTR	91.98.28.189.pol.ir
91.98.28.189	A	mail.martin-kitchen.com
91.98.28.189	A	mail.rppay.ir
91.98.28.215	PTR	91.98.28.215.pol.ir
91.98.28.215	A	kalaoma.com
91.98.28.220	PTR	91.98.28.220.pol.ir
91.98.28.226	PTR	91.98.28.226.pol.ir
91.98.28.226	A	mail.4taraf.ir
91.98.28.226	A	4taraf.ir
91.98.28.232	PTR	91.98.28.232.pol.ir
91.98.28.232	A	notif.kookoja.com
91.98.28.243	PTR	91.98.28.243.pol.ir
91.98.28.243	A	smtp.iranbartar.ir
91.98.28.243	A	smtp.mahyarkalleh.com
91.98.28.250	A+PTR	ns1.parsonline.org
91.98.28.250	A	ns1.parsonline.net
91.98.28.250	A	ns1.gasparian.net