Robtex

Up: 213.74.40.0/23
Can't show all results, try to descend to a more specific CIDR
Down left: 213.74.41.0/25
Down right: 213.74.41.128/25
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
213.74.41.0	PTR	host-213-74-41-0.superonline.net
213.74.41.44	A+PTR	mail.stm.com.tr
213.74.41.44	A	mail.cydecsys.com.tr
213.74.41.50	PTR	host-213-74-41-50.superonline.net
213.74.41.50	A	stmakademi.com
213.74.41.50	A	stm.com.tr
213.74.41.62	PTR	host-213-74-41-62.superonline.net
213.74.41.62	A	ns2.cydecsys.com.tr
213.74.41.62	A	ns2.stmokul.com
213.74.41.70	PTR	host-213-74-41-70.superonline.net
213.74.41.73	PTR	host-213-74-41-73.superonline.net
213.74.41.115	PTR	cimtas.com.tr
213.74.41.115	PTR	mail.cimtas.com.tr
213.74.41.133	A+PTR	smtp.mytechnic.aero
213.74.41.134	PTR	host-213-74-41-134.superonline.net
213.74.41.134	A	mail.mytechnic.aero
213.74.41.136	A+PTR	smtp2.mytechnic.aero
213.74.41.147	PTR	host-213-74-41-147.superonline.net
213.74.41.150	A+PTR	owa.cukurovaholding.com.tr
213.74.41.151	PTR	mail.cukurova.com.tr
213.74.41.151	PTR	mail.cukurovaholding.com.tr
213.74.41.151	A	mail.sinaivemali.com.tr
213.74.41.153	PTR	host-213-74-41-153.superonline.net
213.74.41.153	A	turkcellholding.com.tr
213.74.41.153	A	karamko.com.tr
213.74.41.231	PTR	host-213-74-41-231.superonline.net
213.74.41.231	A	ethicasigorta.com
213.74.41.248	A	mail2.dunyashipping.com