Robtex

Up: 197.47.0.0/18
Can't show all results, try to descend to a more specific CIDR
Down left: 197.47.0.0/20
Down right: 197.47.16.0/20

IP	Type	Hostname
197.47.2.3	PTR	host-197.47.2.3.tedata.net
197.47.2.17	PTR	host-197.47.2.17.tedata.net
197.47.3.0	PTR	host-197.47.3.0.tedata.net
197.47.13.3	PTR	host-197.47.13.3.tedata.net
197.47.13.3	A	bounce.e3.emeraldexpoinfo.com
197.47.17.9	PTR	host-197.47.17.9.tedata.net
197.47.18.84	PTR	host-197.47.18.84.tedata.net
197.47.26.198	PTR	host-197.47.26.198.tedata.net
197.47.30.2	PTR	host-197.47.30.2.tedata.net