Robtex

Up: 41.234.40.0/21
Can't show all results, try to descend to a more specific CIDR
Down left: 41.234.40.0/23
Down right: 41.234.42.0/23

IP	Type	Hostname
41.234.40.105	PTR	host-41.234.40.105.tedata.net
41.234.40.169	PTR	host-41.234.40.169.tedata.net
41.234.40.219	PTR	host-41.234.40.219.tedata.net
41.234.41.12	PTR	host-41.234.41.12.tedata.net
41.234.41.18	PTR	host-41.234.41.18.tedata.net
41.234.41.38	PTR	host-41.234.41.38.tedata.net
41.234.41.93	PTR	host-41.234.41.93.tedata.net
41.234.41.107	PTR	host-41.234.41.107.tedata.net
41.234.41.164	PTR	host-41.234.41.164.tedata.net
41.234.41.176	PTR	host-41.234.41.176.tedata.net
41.234.42.89	PTR	host-41.234.42.89.tedata.net
41.234.42.136	PTR	host-41.234.42.136.tedata.net
41.234.42.228	PTR	host-41.234.42.228.tedata.net
41.234.42.253	PTR	host-41.234.42.253.tedata.net
41.234.42.253	A	cerebralelectronics.com
41.234.42.253	A	partumelectronics.com
41.234.43.42	PTR	host-41.234.43.42.tedata.net
41.234.43.51	PTR	host-41.234.43.51.tedata.net
41.234.43.60	PTR	host-41.234.43.60.tedata.net
41.234.43.67	PTR	host-41.234.43.67.tedata.net
41.234.43.83	PTR	host-41.234.43.83.tedata.net
41.234.43.212	PTR	host-41.234.43.212.tedata.net
41.234.43.248	PTR	host-41.234.43.248.tedata.net