Robtex

Up: 41.42.48.0/21
Can't show all results, try to descend to a more specific CIDR
Down left: 41.42.52.0/23
Down right: 41.42.54.0/23

IP	Type	Hostname
41.42.52.7	PTR	host-41.42.52.7.tedata.net
41.42.52.164	PTR	host-41.42.52.164.tedata.net
41.42.52.241	PTR	host-41.42.52.241.tedata.net
41.42.53.157	PTR	host-41.42.53.157.tedata.net
41.42.54.83	PTR	host-41.42.54.83.tedata.net
41.42.54.207	PTR	host-41.42.54.207.tedata.net
41.42.55.113	PTR	host-41.42.55.113.tedata.net
41.42.55.154	PTR	host-41.42.55.154.tedata.net
41.42.55.211	PTR	host-41.42.55.211.tedata.net
41.42.55.249	PTR	host-41.42.55.249.tedata.net