Robtex

Up: 41.239.88.0/21
Can't show all results, try to descend to a more specific CIDR
Down left: 41.239.88.0/23
Down right: 41.239.90.0/23

IP	Type	Hostname
41.239.88.2	PTR	host-41.239.88.2.tedata.net
41.239.88.105	PTR	host-41.239.88.105.tedata.net
41.239.88.115	PTR	host-41.239.88.115.tedata.net
41.239.88.147	PTR	host-41.239.88.147.tedata.net
41.239.89.14	PTR	host-41.239.89.14.tedata.net
41.239.89.56	PTR	host-41.239.89.56.tedata.net
41.239.89.184	PTR	host-41.239.89.184.tedata.net
41.239.90.13	PTR	host-41.239.90.13.tedata.net
41.239.90.53	PTR	host-41.239.90.53.tedata.net
41.239.90.147	PTR	host-41.239.90.147.tedata.net
41.239.90.222	PTR	host-41.239.90.222.tedata.net
41.239.90.241	PTR	host-41.239.90.241.tedata.net
41.239.90.248	PTR	host-41.239.90.248.tedata.net
41.239.91.117	PTR	host-41.239.91.117.tedata.net
41.239.91.192	PTR	host-41.239.91.192.tedata.net