Robtex

Up: 41.239.136.0/21
Can't show all results, try to descend to a more specific CIDR
Down left: 41.239.140.0/23
Down right: 41.239.142.0/23

IP	Type	Hostname
41.239.140.134	PTR	host-41.239.140.134.tedata.net
41.239.140.242	PTR	host-41.239.140.242.tedata.net
41.239.140.253	PTR	host-41.239.140.253.tedata.net
41.239.141.36	PTR	host-41.239.141.36.tedata.net
41.239.141.107	PTR	host-41.239.141.107.tedata.net
41.239.141.162	PTR	host-41.239.141.162.tedata.net
41.239.141.166	PTR	host-41.239.141.166.tedata.net
41.239.141.187	PTR	host-41.239.141.187.tedata.net
41.239.141.199	PTR	host-41.239.141.199.tedata.net
41.239.141.214	PTR	host-41.239.141.214.tedata.net
41.239.142.4	PTR	host-41.239.142.4.tedata.net
41.239.142.90	PTR	host-41.239.142.90.tedata.net
41.239.142.114	PTR	host-41.239.142.114.tedata.net
41.239.142.185	PTR	host-41.239.142.185.tedata.net
41.239.142.201	PTR	host-41.239.142.201.tedata.net
41.239.143.1	PTR	host-41.239.143.1.tedata.net
41.239.143.42	PTR	host-41.239.143.42.tedata.net
41.239.143.45	PTR	host-41.239.143.45.tedata.net
41.239.143.86	PTR	host-41.239.143.86.tedata.net
41.239.143.97	PTR	host-41.239.143.97.tedata.net
41.239.143.176	PTR	host-41.239.143.176.tedata.net