Robtex

Up: 197.32.64.0/18
Can't show all results, try to descend to a more specific CIDR
Down left: 197.32.64.0/20
Down right: 197.32.80.0/20

IP	Type	Hostname
197.32.64.56	PTR	host-197.32.64.56.tedata.net
197.32.65.34	PTR	host-197.32.65.34.tedata.net
197.32.65.163	PTR	host-197.32.65.163.tedata.net
197.32.66.251	PTR	host-197.32.66.251.tedata.net
197.32.70.173	PTR	host-197.32.70.173.tedata.net
197.32.71.189	PTR	host-197.32.71.189.tedata.net
197.32.72.195	PTR	host-197.32.72.195.tedata.net
197.32.73.91	PTR	host-197.32.73.91.tedata.net
197.32.75.158	PTR	host-197.32.75.158.tedata.net
197.32.77.139	PTR	host-197.32.77.139.tedata.net
197.32.77.143	PTR	host-197.32.77.143.tedata.net
197.32.79.104	PTR	host-197.32.79.104.tedata.net
197.32.86.97	PTR	host-197.32.86.97.tedata.net
197.32.87.21	PTR	host-197.32.87.21.tedata.net
197.32.89.199	PTR	host-197.32.89.199.tedata.net
197.32.91.105	PTR	host-197.32.91.105.tedata.net