Robtex

Up: 212.98.16.0/20
Can't show all results, try to descend to a more specific CIDR
Down left: 212.98.16.0/22
Down right: 212.98.20.0/22

IP	Type	Hostname
212.98.16.23	A+PTR	smtp.gemport.com.tr
212.98.16.23	A	owa.gemport.com.tr
212.98.17.210	PTR	pppkule17-210.isnet.net.tr
212.98.18.11	PTR	pppkule18-11.isnet.net.tr
212.98.20.8	PTR	mail.saydam.com.tr
212.98.20.8	A	mail1.saydam.com.tr
212.98.20.157	PTR	mailout.gemport.com.tr
212.98.21.37	A+PTR	mail.sifas.com.tr
212.98.21.37	A	mail.polylen.com.tr
212.98.21.37	A	mail.nergistekstil.com.tr
212.98.21.69	PTR	mail.baykal.com.tr
212.98.22.224	PTR	pppaci22-224.isnet.net.tr