Robtex

Up: 5.28.32.0/23
Can't show all results, try to descend to a more specific CIDR
Down left: 5.28.33.0/25
Down right: 5.28.33.128/25
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
5.28.33.3	A+PTR	ns1.baharan.ir
5.28.33.3	PTR	ns1.raviyan.ir
5.28.33.3	A+PTR	ns1.selseleh.ir
5.28.33.4	PTR	ns2.raviyan.ir
5.28.33.4	A+PTR	ns2.selseleh.ir
5.28.33.4	A+PTR	ns2.selselehkhooban.ir
5.28.33.5	A+PTR	mail.sadeghan.ir
5.28.33.7	A+PTR	mail.baharan.ir
5.28.33.7	A+PTR	mail.shohadafava.ir
5.28.33.7	A+PTR	mail.bakhshesh.ir
5.28.33.8	A	mail.sadeghan.ir
5.28.33.8	A	mail.mng-co.com
5.28.33.8	A	mail.mng-co.net
5.28.33.10	A+PTR	mail.sahandmoshaver.ir
5.28.33.11	A+PTR	mail.defamoghaddas.ir