Robtex

Up: 176.123.0.0/17
Can't show all results, try to descend to a more specific CIDR
Down left: 176.123.64.0/19
Down right: 176.123.96.0/19
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
176.123.65.2	A+PTR	mail.sums.ac.ir
176.123.65.2	A	mail.ceel.sums.ac.ir
176.123.65.2	A	www.2kdy.cn.whoisbucket.com.radabg.com.websitedetective.net
176.123.65.3	A	pearl.sums.ac.ir
176.123.66.2	A+PTR	ns.sums.ac.ir
176.123.66.2	A+PTR	ns1.sums.ac.ir
176.123.66.2	A	ns1.medplantmarket.ir
176.123.66.3	PTR	ns2.sums.ac.ir
176.123.66.3	A	ns2.heiatsu.ir
176.123.66.66	A+PTR	home.sums.ac.ir
176.123.66.68	A+PTR	rahpouyan.com
176.123.66.68	A	www.rahpouyan.com
176.123.66.69	PTR	rahpouyan.ir
176.123.66.69	PTR	mail.rahpouyan.ir
176.123.66.69	PTR	smtp.rahpouyan.ir
176.123.66.85	A	www.heiatsu.ir
176.123.66.130	PTR	itreport.sums.ac.ir
176.123.66.130	PTR	hss.sums.ac.ir
176.123.66.130	A+PTR	win2.sums.ac.ir
176.123.66.196	A	dl.heiatsu.ir
176.123.66.196	A	server-58.palaexpo.it
176.123.66.196	A	www.heiatsu.ir
176.123.66.203	PTR	ijisubmission.sums.ac.ir
176.123.66.203	PTR	ijms2.sums.ac.ir
176.123.66.203	PTR	ijps.sums.ac.ir
176.123.66.245	A	ceel.sums.ac.ir
176.123.70.2	A	mail.ceel.sums.ac.ir
176.123.70.2	A	ceel.sums.ac.ir
176.123.70.2	A	mail.svk-europe.eu