Robtex

Up: 212.57.2.0/23
Can't show all results, try to descend to a more specific CIDR
Down left: 212.57.3.0/25
Down right: 212.57.3.128/25
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
212.57.3.1	PTR	asy1.asy3.tellcom.com.tr
212.57.3.2	PTR	host-212-57-3-2.reverse.superonline.net
212.57.3.3	PTR	asy3.asy3.tellcom.com.tr
212.57.3.23	PTR	asy23.asy3.tellcom.com.tr
212.57.3.42	PTR	asy42.asy3.tellcom.com.tr
212.57.3.53	A	mail.tamfaktoring.com.tr
212.57.3.58	PTR	asy58.asy3.tellcom.com.tr
212.57.3.138	PTR	asy138.asy3.tellcom.com.tr
212.57.3.138	A	secimakli.com
212.57.3.138	A	birliktaksi.com
212.57.3.166	PTR	asy166.asy3.tellcom.com.tr
212.57.3.178	PTR	host-212-57-3-178.reverse.superonline.net
212.57.3.182	PTR	host-212-57-3-182.reverse.superonline.net
212.57.3.186	PTR	asy186.asy3.tellcom.com.tr
212.57.3.186	A	ns.teknookyanus.com
212.57.3.186	A	ns1.teknookyanus.com
212.57.3.188	PTR	host-212-57-3-188.reverse.superonline.net
212.57.3.188	A	teknookyanus.com
212.57.3.199	A	burcuyurekli.com
212.57.3.211	PTR	host-212-57-3-211.reverse.superonline.net
212.57.3.212	PTR	sampiyonfilter.com.tr
212.57.3.212	A	mail.sampiyonfilter.com.tr
212.57.3.212	A	mail.guneyliyilmaz.com.tr
212.57.3.214	PTR	asy214.asy3.tellcom.com.tr
212.57.3.214	A	sampiyonfilter.com.tr
212.57.3.226	A+PTR	mail.ekinler.com
212.57.3.234	PTR	asy234.asy3.tellcom.com.tr
212.57.3.254	PTR	asy254.asy3.tellcom.com.tr