These entries are queried from radb.net using whois, you can try my project getting these.
:AS46408 route: 104.219.24.0/22 descr: COLUMBUS NETWORKS TRANSIT CUSTOMERS origin: AS46408 notify: ipservices [at] columbus.co mnt-by: MAINT-AS23520 changed: grendon [at] columbus.co 20141016 source: RADB last-modified: 2023-11-13T15:55:49Z rpki-ov-state: valid route: 104.255.232.0/22 descr: COLUMBUS NETWORKS TRANSIT CUSTOMERS origin: AS46408 notify: ipservices [at] cwc.com mnt-by: MAINT-AS23520 changed: gcastro [at] cwc.com 20151228 source: RADB last-modified: 2023-11-13T15:56:02Z rpki-ov-state: valid route: 104.255.232.0/23 descr: COLUMBUS NETWORKS TRANSIT CUSTOMERS origin: AS46408 notify: ipservices [at] columbus.co mnt-by: MAINT-AS23520 changed: jtrespalacios [at] columbus.co 20150501 source: RADB last-modified: 2023-11-13T15:56:02Z rpki-ov-state: valid route: 104.255.234.0/23 descr: COLUMBUS NETWORKS TRANSIT CUSTOMERS origin: AS46408 notify: ipservices [at] columbus.co mnt-by: MAINT-AS23520 changed: jtrespalacios [at] columbus.co 20150501 source: RADB last-modified: 2023-11-13T15:56:02Z rpki-ov-state: valid route: 162.212.210.0/23 descr: COLUMBUS NETWORKS TRANSIT CUSTOMERS origin: AS46408 notify: ipservices [at] columbus-networks.com mnt-by: MAINT-AS23520 changed: rprudhomme [at] columbus-networks.com 20140910 source: RADB last-modified: 2023-11-13T15:55:49Z rpki-ov-state: valid route: 192.58.140.0/23 descr: COLUMBUS NETWORKS TRANSIT CUSTOMERS origin: AS46408 notify: ipservices [at] columbus-networks.com mnt-by: MAINT-AS23520 changed: rprudhomme [at] columbus-networks.com 20140910 source: RADB last-modified: 2023-11-13T15:55:49Z rpki-ov-state: valid route: 199.192.224.0/23 descr: COLUMBUS NETWORKS TRANSIT CUSTOMERS origin: AS46408 notify: ipservices [at] columbus-networks.com mnt-by: MAINT-AS23520 changed: rprudhomme [at] columbus-networks.com 20140910 source: RADB last-modified: 2023-11-13T15:55:49Z rpki-ov-state: valid route: 207.191.240.0/21 descr: COLUMBUS NETWORKS TRANSIT CUSTOMERS origin: AS46408 notify: ipservices [at] columbus-networks.com mnt-by: MAINT-AS23520 changed: rprudhomme [at] columbus-networks.com 20140915 source: RADB last-modified: 2023-11-13T15:55:49Z rpki-ov-state: valid route: 207.191.240.0/23 descr: COLUMBUS NETWORKS TRANSIT CUSTOMERS origin: AS46408 notify: ipservices [at] columbus-networks.com mnt-by: MAINT-AS23520 changed: rprudhomme [at] columbus-networks.com 20140910 source: RADB last-modified: 2023-11-13T15:55:49Z rpki-ov-state: valid route: 208.84.200.0/21 descr: COLUMBUS NETWORKS TRANSIT CUSTOMERS origin: AS46408 notify: ipservices [at] columbus-networks.com mnt-by: MAINT-AS23520 changed: rprudhomme [at] columbus-networks.com 20140910 source: RADB last-modified: 2023-11-13T15:55:49Z rpki-ov-state: valid