Robtex

Up: 185.3.56.0/21
Can't show all results, try to descend to a more specific CIDR
Down left: 185.3.56.0/23
Down right: 185.3.58.0/23
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
185.3.56.11	PTR	tgs-tr.com
185.3.56.11	A+PTR	statik.tgs.aero
185.3.56.11	PTR	tgsaerotest.tgs.aero
185.3.56.13	A+PTR	ftp.tgs.aero
185.3.56.13	A+PTR	sftp.tgs.aero
185.3.56.17	A	pmp.tgs.aero
185.3.56.19	A+PTR	posta.tgs.aero
185.3.56.21	A+PTR	posta2.tgs.aero
185.3.56.21	A+PTR	spam.tgs.aero
185.3.56.37	PTR	solman.tgs.aero
185.3.56.55	PTR	posta.turkishgroudservices.org
185.3.56.55	A+PTR	posta.tgs-tr.com
185.3.56.61	A+PTR	ns3.tgs.aero
185.3.56.62	A+PTR	ns4.tgs.aero
185.3.56.65	A+PTR	basvuru.tgs.aero