Robtex

Up: 197.34.128.0/17
Can't show all results, try to descend to a more specific CIDR
Down left: 197.34.128.0/19
Down right: 197.34.160.0/19

IP	Type	Hostname
197.34.128.41	PTR	host-197.34.128.41.tedata.net
197.34.128.96	PTR	host-197.34.128.96.tedata.net
197.34.132.67	PTR	host-197.34.132.67.tedata.net
197.34.133.123	PTR	host-197.34.133.123.tedata.net
197.34.133.156	PTR	host-197.34.133.156.tedata.net
197.34.133.167	PTR	host-197.34.133.167.tedata.net
197.34.133.180	PTR	host-197.34.133.180.tedata.net
197.34.135.3	PTR	host-197.34.135.3.tedata.net
197.34.145.139	PTR	host-197.34.145.139.tedata.net
197.34.145.207	PTR	host-197.34.145.207.tedata.net
197.34.145.216	PTR	host-197.34.145.216.tedata.net
197.34.146.108	PTR	host-197.34.146.108.tedata.net
197.34.151.41	PTR	host-197.34.151.41.tedata.net
197.34.152.199	PTR	host-197.34.152.199.tedata.net
197.34.155.113	PTR	host-197.34.155.113.tedata.net
197.34.156.97	PTR	host-197.34.156.97.tedata.net
197.34.166.80	PTR	host-197.34.166.80.tedata.net
197.34.167.197	PTR	host-197.34.167.197.tedata.net
197.34.185.106	PTR	host-197.34.185.106.tedata.net
197.34.186.73	PTR	host-197.34.186.73.tedata.net
197.34.190.198	PTR	host-197.34.190.198.tedata.net