Robtex

Up: 197.43.168.0/21
Can't show all results, try to descend to a more specific CIDR
Down left: 197.43.172.0/23
Down right: 197.43.174.0/23

IP	Type	Hostname
197.43.173.14	PTR	host-197.43.173.14.tedata.net
197.43.174.25	PTR	host-197.43.174.25.tedata.net
197.43.174.31	PTR	host-197.43.174.31.tedata.net
197.43.174.43	PTR	host-197.43.174.43.tedata.net
197.43.174.62	PTR	host-197.43.174.62.tedata.net
197.43.174.67	PTR	host-197.43.174.67.tedata.net
197.43.174.81	PTR	host-197.43.174.81.tedata.net
197.43.174.88	PTR	host-197.43.174.88.tedata.net
197.43.174.129	PTR	host-197.43.174.129.tedata.net
197.43.174.134	PTR	host-197.43.174.134.tedata.net
197.43.174.142	PTR	host-197.43.174.142.tedata.net
197.43.174.143	PTR	host-197.43.174.143.tedata.net
197.43.174.174	PTR	host-197.43.174.174.tedata.net
197.43.174.179	PTR	host-197.43.174.179.tedata.net
197.43.174.218	PTR	host-197.43.174.218.tedata.net