Robtex

Up: 212.154.14.0/23
Can't show all results, try to descend to a more specific CIDR
Down left: 212.154.15.0/25
Down right: 212.154.15.128/25
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
212.154.15.51	A+PTR	webmail1.turk.net
212.154.15.51	A	webposta.turk.net
212.154.15.51	A	webposta1.turk.net
212.154.15.52	A+PTR	webmail2.turk.net
212.154.15.52	A	webposta.turk.net
212.154.15.52	A	webposta2.turk.net
212.154.15.61	PTR	smtp1.turk.net
212.154.15.61	A	mail.turk.net
212.154.15.61	A	pop3.turk.net
212.154.15.62	A+PTR	smtp2.turk.net
212.154.15.62	A	mail.turk.net
212.154.15.62	A	pop3.turk.net
212.154.15.63	PTR	smtp1.turk.net
212.154.15.64	A	webmail.turk.net
212.154.15.71	PTR	messenger1.turk.net
212.154.15.71	A	messenger.turk.net
212.154.15.72	PTR	messenger2.turk.net
212.154.15.72	A	messenger.turk.net