These entries are queried from radb.net using whois, you can try my project getting these.
:AS263796 route: 138.58.132.0/22 descr: COLUMBUS NETWORKS TRANSIT CUSTOMERS origin: AS263796 notify: ipservices [at] columbus.co mnt-by: MAINT-AS23520 changed: gersain.rendon [at] cwc.com 20221129 source: RADB last-modified: 2023-11-13T16:13:09Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 138.122.244.0/22 descr: COLUMBUS NETWORKS TRANSIT CUSTOMERS origin: AS263796 notify: ipservices [at] columbus.co mnt-by: MAINT-AS23520 changed: grendon [at] columbus.co 20150826 source: RADB last-modified: 2023-11-13T15:56:02Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route6: 2803:5c40::/32 descr: COLUMBUS NETWORKS TRANSIT CUSTOMERS origin: AS263796 notify: ipservices [at] columbus.co mnt-by: MAINT-AS23520 changed: grendon [at] columbus.co 20150826 source: RADB last-modified: 2023-11-13T15:56:02Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source