Robtex

Up: 212.252.104.0/22
Can't show all results, try to descend to a more specific CIDR
Down left: 212.252.104.0/24
Down right: 212.252.105.0/24
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
212.252.104.0	PTR	host-212-252-104-0.reverse.superonline.net
212.252.104.18	PTR	www.tff.org
212.252.104.25	PTR	host-212-252-104-25.reverse.superonline.net
212.252.104.112	PTR	host-212-252-104-112.reverse.superonline.net
212.252.104.142	PTR	mail.turcom.com.tr
212.252.104.146	PTR	mail.yks.com.tr
212.252.104.154	PTR	host-212-252-104-154.reverse.superonline.net
212.252.104.162	PTR	mail.net-com.com.tr
212.252.104.172	PTR	host-212-252-104-172.reverse.superonline.net
212.252.104.254	PTR	host-212-252-104-254.reverse.superonline.net
212.252.105.92	PTR	ykb.teleweb.com.tr
212.252.105.121	PTR	host-212-252-105-121.reverse.superonline.net
212.252.105.121	A	senolsunlogistics.com
212.252.105.121	A	mail.senolsunlogistics.com
212.252.105.124	PTR	host-212-252-105-124.reverse.superonline.net
212.252.105.212	PTR	mail.kale.com.tr
212.252.105.213	PTR	www.kale.com.tr