Robtex

Up: 197.48.128.0/17
Can't show all results, try to descend to a more specific CIDR
Down left: 197.48.192.0/19
Down right: 197.48.224.0/19

IP	Type	Hostname
197.48.195.66	PTR	host-197.48.195.66.tedata.net
197.48.200.46	PTR	host-197.48.200.46.tedata.net
197.48.209.137	PTR	host-197.48.209.137.tedata.net
197.48.210.30	PTR	host-197.48.210.30.tedata.net
197.48.210.56	PTR	host-197.48.210.56.tedata.net
197.48.211.136	PTR	host-197.48.211.136.tedata.net
197.48.213.173	PTR	host-197.48.213.173.tedata.net
197.48.219.109	PTR	host-197.48.219.109.tedata.net
197.48.226.149	PTR	host-197.48.226.149.tedata.net
197.48.227.187	PTR	host-197.48.227.187.tedata.net
197.48.233.49	PTR	host-197.48.233.49.tedata.net
197.48.250.94	PTR	host-197.48.250.94.tedata.net
197.48.252.166	PTR	host-197.48.252.166.tedata.net
197.48.253.164	PTR	host-197.48.253.164.tedata.net