Robtex

Up: 92.50.28.0/23
Can't show all results, try to descend to a more specific CIDR
Down left: 92.50.28.0/25
Down right: 92.50.28.128/25
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
92.50.28.1	PTR	92.50.28.1.user.shahrad.net
92.50.28.17	PTR	92.50.28.17.user.shahrad.net
92.50.28.21	PTR	92.50.28.21.user.shahrad.net
92.50.28.33	PTR	92.50.28.33.user.shahrad.net
92.50.28.36	PTR	92.50.28.36.user.shahrad.net
92.50.28.38	PTR	92.50.28.38.user.shahrad.net
92.50.28.38	A	dc-ae9d0c3de25a.sabaso.ir
92.50.28.52	PTR	92.50.28.52.user.shahrad.net
92.50.28.57	PTR	92.50.28.57.user.shahrad.net
92.50.28.69	PTR	92.50.28.69.user.shahrad.net
92.50.28.85	PTR	92.50.28.85.user.shahrad.net
92.50.28.87	PTR	92.50.28.87.user.shahrad.net
92.50.28.117	PTR	92.50.28.117.user.shahrad.net
92.50.28.125	PTR	92.50.28.125.user.shahrad.net
92.50.28.163	A+PTR	ns1.iranfava.net
92.50.28.163	A	mail.ebpp.ir
92.50.28.163	A	www.iranfava.com
92.50.28.211	PTR	92.50.28.211.user.shahrad.net
92.50.28.211	A	mail.gsi.ir
92.50.28.211	A	mail.ries.ac.ir
92.50.28.228	A	ns1.ngdir.info
92.50.28.228	A	ns1.ngdir-map.com
92.50.28.228	A	ngdir.info
92.50.28.230	A	mail.ngdir.info
92.50.28.236	A	ngdir-map.com
92.50.28.237	PTR	92.50.28.237.user.shahrad.net
92.50.28.237	A	hmail.ngdir.ir
92.50.28.251	PTR	92.50.28.251.user.shahrad.net
92.50.28.251	A	beyraqolhosein.ir
92.50.28.251	A	www.parizii.ir