Robtex

Up: 212.57.23.0/24
Can't show all results, try to descend to a more specific CIDR
Down left: 212.57.23.0/26
Down right: 212.57.23.64/26
(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