Robtex

Up: 212.252.192.0/23
Can't show all results, try to descend to a more specific CIDR
Down left: 212.252.193.0/25
Down right: 212.252.193.128/25
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
212.252.193.18	PTR	g3-s18.valuezon.com
212.252.193.19	A+PTR	g3-s19.valuezon.com
212.252.193.19	A	smtp.kreadirect.com
212.252.193.19	A	mail.kreadigitalmarketing.com
212.252.193.27	A	mail.centro.com.tr
212.252.193.30	A+PTR	g3-s30.valuezon.com
212.252.193.30	A	mail.g3-s30.valuezon.com
212.252.193.34	PTR	asy34.as193.sol.superonline.com
212.252.193.35	A	mail.terbay.com
212.252.193.57	PTR	mail.joker.com.tr
212.252.193.58	PTR	mail1.joker.com.tr
212.252.193.58	PTR	mail2.joker.com.tr
212.252.193.58	PTR	webmail.joker.com.tr
212.252.193.60	A+PTR	mail.joker.com.tr
212.252.193.60	A	mail.soobe.com.tr
212.252.193.60	A	webmail.joker.com.tr
212.252.193.74	PTR	mail.ias.com.tr
212.252.193.74	A	ias.com.tr
212.252.193.74	A	erpyitestet.com
212.252.193.75	A+PTR	mail2.ias.com.tr
212.252.193.75	A	mail.erpyitestet.com
212.252.193.75	A	mail3.ias.com.tr
212.252.193.77	PTR	asy77.as193.sol.superonline.com
212.252.193.77	A	canias.ias.com.tr
212.252.193.94	PTR	host-212-252-193-94.reverse.superonline.net
212.252.193.98	PTR	host-212-252-193-98.reverse.superonline.net
212.252.193.109	PTR	asy109.as193.sol.superonline.com
212.252.193.109	A	ogr.kemerburgaz.edu.tr
212.252.193.114	PTR	host-212-252-193-114.reverse.superonline.net
212.252.193.131	A+PTR	mail.atu.com.tr
212.252.193.131	A	atuns1.atu.com.tr
212.252.193.131	A	atums.atu.com.tr
212.252.193.132	PTR	host-212-252-193-132.reverse.superonline.net
212.252.193.132	A	xn--at-yka.com.tr
212.252.193.132	A	mr-happy.dis.org
212.252.193.149	PTR	host-212-252-193-149.reverse.superonline.net
212.252.193.150	PTR	host-212-252-193-150.reverse.superonline.net
212.252.193.150	A	mail.atudutyfree.com.tr