Robtex

Up: 212.3.0.0/18
Can't show all results, try to descend to a more specific CIDR
Down left: 212.3.32.0/20
Down right: 212.3.48.0/20

IP	Type	Hostname
212.3.32.0	PTR	212-3-32-0.jetnet.es
212.3.34.67	PTR	212-3-34-67.jetnet.es
212.3.37.2	PTR	212-3-37-2.jetnet.es
212.3.45.74	A	mail-server.cftulley.co.zw
212.3.55.9	A	mail.evergreen-electrica.com
212.3.60.231	A	mail.vivesur.es