Robtex

Up: 41.239.192.0/21
Can't show all results, try to descend to a more specific CIDR
Down left: 41.239.192.0/23
Down right: 41.239.194.0/23

IP	Type	Hostname
41.239.192.133	PTR	host-41.239.192.133.tedata.net
41.239.193.12	PTR	host-41.239.193.12.tedata.net
41.239.193.208	PTR	host-41.239.193.208.tedata.net
41.239.193.243	PTR	host-41.239.193.243.tedata.net
41.239.195.23	PTR	host-41.239.195.23.tedata.net
41.239.195.70	PTR	host-41.239.195.70.tedata.net
41.239.195.137	PTR	host-41.239.195.137.tedata.net
41.239.195.251	PTR	host-41.239.195.251.tedata.net