Robtex

Up: 197.55.192.0/19
Can't show all results, try to descend to a more specific CIDR
Down left: 197.55.208.0/21
Down right: 197.55.216.0/21

IP	Type	Hostname
197.55.213.80	PTR	host-197.55.213.80.tedata.net
197.55.216.98	PTR	host-197.55.216.98.tedata.net
197.55.220.160	PTR	host-197.55.220.160.tedata.net
197.55.220.195	PTR	host-197.55.220.195.tedata.net
197.55.220.242	PTR	host-197.55.220.242-static.tedata.net
197.55.221.19	PTR	host-197.55.221.19.tedata.net
197.55.223.178	PTR	host-197.55.223.178.tedata.net