Robtex

Up: 197.38.64.0/19
Can't show all results, try to descend to a more specific CIDR
Down left: 197.38.80.0/21
Down right: 197.38.88.0/21

IP	Type	Hostname
197.38.80.48	PTR	host-197.38.80.48.tedata.net
197.38.82.145	PTR	host-197.38.82.145.tedata.net
197.38.86.30	PTR	host-197.38.86.30.tedata.net
197.38.87.10	PTR	host-197.38.87.10.tedata.net
197.38.88.130	PTR	host-197.38.88.130.tedata.net
197.38.88.199	PTR	host-197.38.88.199.tedata.net
197.38.90.60	PTR	host-197.38.90.60.tedata.net
197.38.92.160	PTR	host-197.38.92.160.tedata.net