Robtex

Up: 197.54.64.0/18
Can't show all results, try to descend to a more specific CIDR
Down left: 197.54.96.0/20
Down right: 197.54.112.0/20

IP	Type	Hostname
197.54.106.2	PTR	host-197.54.106.2.tedata.net
197.54.106.33	PTR	host-197.54.106.33.tedata.net
197.54.106.34	PTR	host-197.54.106.34.tedata.net
197.54.106.99	PTR	host-197.54.106.99.tedata.net
197.54.106.163	PTR	host-197.54.106.163.tedata.net
197.54.106.192	PTR	host-197.54.106.192.tedata.net
197.54.106.227	PTR	host-197.54.106.227.tedata.net
197.54.107.189	PTR	host-197.54.107.189.tedata.net
197.54.120.241	PTR	host-197.54.120.241.tedata.net
197.54.124.149	PTR	host-197.54.124.149.tedata.net