Robtex

Up: 188.75.88.0/21
Can't show all results, try to descend to a more specific CIDR
Down left: 188.75.88.0/23
Down right: 188.75.90.0/23
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
188.75.88.3	A	lavizan.net
188.75.88.3	A	www.lavizan.net
188.75.88.50	PTR	int0.client.access.fanaptelecom.net
188.75.88.50	A	mail.fanap.plus
188.75.88.61	PTR	int0.client.access.fanaptelecom.net
188.75.88.61	A	ns7.gtc.ir
188.75.88.61	A	gracegracemobile.com
188.75.88.100	A+PTR	mail.sindbadlogistics.com
188.75.88.100	A	sit-dc.sindbadlogistics.com
188.75.88.100	A	ns2.sindbadlogistics.com
188.75.88.163	A+PTR	mx2.amnpardaz.com
188.75.88.163	A	mx2.amnpardaz.ir
188.75.88.163	A	mx2.amnpardaz.net
188.75.88.164	A	mxpmg.amnpardaz.com
188.75.88.165	PTR	int0.client.access.fanaptelecom.net
188.75.88.165	A	ns1.amnpardaz.ir
188.75.88.165	A	ns1.amnpardaz.com
188.75.88.166	PTR	int0.client.access.fanaptelecom.net
188.75.88.169	PTR	int0.client.access.fanaptelecom.net
188.75.88.169	A	bugreport.ir
188.75.88.169	A	mx3.amnpardaz.ir
188.75.88.172	A	mail.amnpardaz.com
188.75.88.172	A	mail.amnpardaz.ir
188.75.88.172	A	webmail.amnpardaz.ir
188.75.88.175	PTR	int0.client.access.fanaptelecom.net
188.75.88.176	PTR	int0.client.access.fanaptelecom.net
188.75.88.176	A	amnpardaz.ir
188.75.88.176	A	www.amnpardaz.com
188.75.88.195	A+PTR	mail.tax.gov.ir
188.75.88.195	A	www.taxir.org
188.75.88.195	A	taxir.org
188.75.88.198	PTR	int0.client.access.fanaptelecom.net
188.75.88.198	A	www.intamedia.ir
188.75.88.201	PTR	int0.client.access.fanaptelecom.net
188.75.89.3	A+PTR	ns1.jamejamonline.ir
188.75.89.3	A	ns1.scorp1ons.com
188.75.89.3	A	ns1.jjo.ir
188.75.89.4	PTR	int0.client.access.fanaptelecom.net
188.75.89.4	A	jamejamnama.ir
188.75.89.4	A	jamejamonline.com
188.75.89.6	PTR	int0.client.access.fanaptelecom.net
188.75.89.10	A	jamejampress.ir
188.75.89.10	A	press.jamejamonline.ir
188.75.89.11	A+PTR	smtp1.jamejamonline.ir
188.75.89.35	PTR	int0.client.access.fanaptelecom.net
188.75.89.35	A	media.jamejamonline.ir
188.75.89.39	A	jamejamsara.ir
188.75.89.40	A	jamejamsima.ir
188.75.89.42	PTR	int0.client.access.fanaptelecom.net
188.75.89.42	A	stats.jamejamonline.ir
188.75.89.44	PTR	int0.client.access.fanaptelecom.net
188.75.89.44	A	alyssasirree77.soseli.com
188.75.89.44	A	webmail.jamejamonline.ir
188.75.89.138	PTR	int0.client.access.fanaptelecom.net
188.75.89.138	A	mail.hamshahri.net
188.75.90.5	A	sd.homatelecom.net
188.75.90.22	PTR	int0.client.access.fanaptelecom.net
188.75.90.22	A	vps-arangsrv.arangit.com
188.75.90.22	A	hostmaster.arangit.com
188.75.90.30	A+PTR	speedtest.homatelecom.net
188.75.90.30	A+PTR	st1.homatelecom.net
188.75.90.30	A	blog.superflyworldshop.com
188.75.90.34	A+PTR	speedtest.homatelecom.net
188.75.90.34	PTR	st2.homatelecom.net
188.75.90.34	A	blog.superflyworldshop.com
188.75.90.36	PTR	mymed.ir
188.75.90.36	A	1taan.com
188.75.90.36	A	ns1.hellomoto.ir
188.75.90.37	PTR	mail.rayane-khabar.ir
188.75.90.37	A	ns2.rayaneh-khabar.ir
188.75.90.37	A	ns1.rayane-khabar.ir
188.75.90.38	PTR	homatelecom.com
188.75.90.67	A	ns3.hotel360.ir
188.75.90.67	A	economicnews.ir
188.75.90.67	A	reserveiran.ir
188.75.90.68	PTR	int0.client.access.fanaptelecom.net
188.75.90.68	A	ns4.hotel360.ir
188.75.90.76	A	mail.iranmarkaz.ir
188.75.90.103	A	debianserver.dyndns.tv
188.75.91.35	PTR	int0.client.access.fanaptelecom.net
188.75.91.35	A	tcpworld.ir
188.75.91.35	A	mail.rayantadbir.com
188.75.91.38	A+PTR	mail.irancharkh.com
188.75.91.131	PTR	int0.client.access.fanaptelecom.net
188.75.91.131	A	mail.84378.ir
188.75.91.131	A	azmoonyar.net
188.75.91.132	A	mail.dorikaceramics.com
188.75.91.132	A	rahyar.net
188.75.91.132	A	faridi.ir
188.75.91.140	PTR	int0.client.access.fanaptelecom.net
188.75.91.140	A	www.mail.pargoon.net
188.75.91.140	A	mail.rahyar.net