Robtex

Up: 197.41.0.0/17
Can't show all results, try to descend to a more specific CIDR
Down left: 197.41.64.0/19
Down right: 197.41.96.0/19

IP	Type	Hostname
197.41.64.91	PTR	host-197.41.64.91.tedata.net
197.41.66.175	PTR	host-197.41.66.175.tedata.net
197.41.67.98	PTR	host-197.41.67.98.tedata.net
197.41.70.183	PTR	host-197.41.70.183.tedata.net
197.41.74.58	PTR	host-197.41.74.58.tedata.net
197.41.75.122	PTR	host-197.41.75.122.tedata.net
197.41.75.149	PTR	host-197.41.75.149.tedata.net
197.41.79.130	PTR	host-197.41.79.130.tedata.net
197.41.83.153	PTR	host-197.41.83.153.tedata.net
197.41.84.81	PTR	host-197.41.84.81.tedata.net
197.41.86.17	PTR	host-197.41.86.17.tedata.net
197.41.92.2	PTR	host-197.41.92.2.tedata.net
197.41.92.65	PTR	host-197.41.92.65.tedata.net
197.41.92.192	PTR	host-197.41.92.192.tedata.net
197.41.92.195	PTR	host-197.41.92.195.tedata.net
197.41.96.220	PTR	host-197.41.96.220.tedata.net
197.41.97.6	PTR	host-197.41.97.6.tedata.net
197.41.99.89	PTR	host-197.41.99.89.tedata.net
197.41.102.126	PTR	host-197.41.102.126.tedata.net
197.41.114.223	PTR	host-197.41.114.223.tedata.net
197.41.115.18	PTR	host-197.41.115.18.tedata.net
197.41.116.213	PTR	host-197.41.116.213.tedata.net
197.41.119.155	PTR	host-197.41.119.155.tedata.net