Robtex

Up: 197.32.240.0/20
Can't show all results, try to descend to a more specific CIDR
Down left: 197.32.248.0/22
Down right: 197.32.252.0/22

IP	Type	Hostname
197.32.248.186	PTR	host-197.32.248.186.tedata.net
197.32.250.98	PTR	host-197.32.250.98.tedata.net
197.32.252.207	PTR	host-197.32.252.207.tedata.net
197.32.253.21	PTR	host-197.32.253.21.tedata.net
197.32.254.37	PTR	host-197.32.254.37.tedata.net
197.32.254.94	PTR	host-197.32.254.94.tedata.net
197.32.254.102	PTR	host-197.32.254.102.tedata.net
197.32.255.137	PTR	host-197.32.255.137.tedata.net
197.32.255.187	PTR	host-197.32.255.187.tedata.net