Robtex

Up: 197.43.192.0/19
Can't show all results, try to descend to a more specific CIDR
Down left: 197.43.192.0/21
Down right: 197.43.200.0/21

IP	Type	Hostname
197.43.199.17	PTR	host-197.43.199.17.tedata.net
197.43.199.35	PTR	host-197.43.199.35.tedata.net
197.43.199.64	PTR	host-197.43.199.64.tedata.net
197.43.199.146	PTR	host-197.43.199.146.tedata.net
197.43.199.163	PTR	host-197.43.199.163.tedata.net
197.43.199.225	PTR	host-197.43.199.225.tedata.net
197.43.204.104	PTR	host-197.43.204.104.tedata.net