Robtex

Up: 197.55.128.0/18
Can't show all results, try to descend to a more specific CIDR
Down left: 197.55.128.0/20
Down right: 197.55.144.0/20

IP	Type	Hostname
197.55.131.163	PTR	host-197.55.131.163.tedata.net
197.55.142.3	PTR	host-197.55.142.3.tedata.net
197.55.145.129	PTR	host-197.55.145.129.tedata.net
197.55.148.4	PTR	host-197.55.148.4.tedata.net
197.55.152.67	PTR	host-197.55.152.67.tedata.net
197.55.159.128	PTR	host-197.55.159.128.tedata.net
197.55.159.131	PTR	host-197.55.159.131.tedata.net