Robtex

Up: 197.46.192.0/18
Can't show all results, try to descend to a more specific CIDR
Down left: 197.46.224.0/20
Down right: 197.46.240.0/20

IP	Type	Hostname
197.46.239.90	PTR	host-197.46.239.90.tedata.net
197.46.240.33	PTR	host-197.46.240.33.tedata.net
197.46.240.65	PTR	host-197.46.240.65.tedata.net
197.46.240.66	PTR	host-197.46.240.66.tedata.net
197.46.240.160	PTR	host-197.46.240.160.tedata.net
197.46.240.193	PTR	host-197.46.240.193.tedata.net
197.46.240.195	PTR	host-197.46.240.195.tedata.net
197.46.244.4	PTR	host-197.46.244.4.tedata.net
197.46.246.180	PTR	host-197.46.246.180.tedata.net
197.46.253.221	PTR	host-197.46.253.221.tedata.net