Robtex

Up: 212.57.22.0/23
Can't show all results, try to descend to a more specific CIDR
Down left: 212.57.23.0/25
Down right: 212.57.23.128/25
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
212.57.23.2	PTR	host-212-57-23-2.reverse.superonline.net
212.57.23.2	A	ygaventures.org
212.57.23.2	A	azadealtintas.com
212.57.23.5	PTR	asy5.asy23.tellcom.com.tr
212.57.23.5	A	ho1.hayalortagim.com
212.57.23.5	A	hayalortagim.com
212.57.23.10	PTR	asy10.asy23.tellcom.com.tr
212.57.23.12	PTR	asy12.asy23.tellcom.com.tr
212.57.23.12	A	getpoi.com
212.57.23.12	A	yga.org.tr
212.57.23.20	PTR	asy20.asy23.tellcom.com.tr
212.57.23.50	PTR	connect.florence.com.tr
212.57.23.67	PTR	mail.prontodmc.com
212.57.23.67	PTR	mail2.prontodmc.com
212.57.23.67	A+PTR	mail.prontomice.com
212.57.23.71	A	mail.epostaprontotour.com
212.57.23.114	PTR	mail.hasen.org.tr
212.57.23.114	PTR	webmail.hasen.org.tr
212.57.23.148	PTR	asy148.asy23.tellcom.com.tr
212.57.23.148	A	mail2.ikaruspro.com
212.57.23.148	A	mail2.patentofisim.com
212.57.23.162	A	mail.kaban.com.tr
212.57.23.163	PTR	host-212-57-23-163.reverse.superonline.net
212.57.23.163	A	mailgw.kaban.com.tr
212.57.23.170	PTR	host-212-57-23-170.reverse.superonline.net
212.57.23.173	PTR	host-212-57-23-173.reverse.superonline.net
212.57.23.174	PTR	asy174.asy23.tellcom.com.tr
212.57.23.174	A	mail.danet.com.tr
212.57.23.229	PTR	host-212-57-23-229.reverse.superonline.net
212.57.23.252	PTR	asy252.asy23.tellcom.com.tr
212.57.23.252	A	unipansiyon.com
212.57.23.252	A	ns6.tepehost.com