Robtex

Up: 196.219.128.0/20
Can't show all results, try to descend to a more specific CIDR
Down left: 196.219.136.0/22
Down right: 196.219.140.0/22

IP	Type	Hostname
196.219.138.251	PTR	host-196.219.138.251-static.tedata.net
196.219.140.11	PTR	host-196.219.140.11-static.tedata.net
196.219.140.243	PTR	host-196.219.140.243-static.tedata.net
196.219.142.147	PTR	host-196.219.142.147-static.tedata.net