Robtex

Up: 212.58.0.0/23
Can't show all results, try to descend to a more specific CIDR
Down left: 212.58.1.0/25
Down right: 212.58.1.128/25
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
212.58.1.0	PTR	net.doruk.net.tr
212.58.1.1	PTR	bsk.budu.m7.lo.doruk.net.tr
212.58.1.3	PTR	cgate.doruk.net.tr
212.58.1.14	PTR	bsk.wald.lo.doruk.net.tr
212.58.1.32	PTR	bsk.as53.lo.doruk.net.tr
212.58.1.32	A	cumbarestaurant.com
212.58.1.32	A	bshservis.com.tr
212.58.1.33	PTR	bsk.edi.m7.lo.doruk.net.tr
212.58.1.43	PTR	t-inc-ank.c26.lo.doruk.net.tr
212.58.1.64	PTR	rev.64.1.58.212.doruk.net.tr
212.58.1.65	PTR	sam.as.lo.doruk.net.tr
212.58.1.69	PTR	rev.69.1.58.212.doruk.net.tr
212.58.1.77	A+PTR	blackdwarf.doruk.net.tr
212.58.1.80	PTR	rev.80.1.58.212.doruk.net.tr
212.58.1.137	PTR	rev.137.1.58.212.doruk.net.tr
212.58.1.255	PTR	bcast.doruk.net.tr