These entries are queried from radb.net using whois, you can try my project getting these.
:AS18635 route: 208.87.32.0/24 descr: COLUMBUS NETWORKS TRANSIT CUSTOMERS origin: AS18635 notify: ipservices [at] columbus.co mnt-by: MAINT-AS23520 changed: rafael.espinosa [at] cwc.com 20171004 source: RADB last-modified: 2023-11-13T15:56:02Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 208.87.33.0/24 descr: COLUMBUS NETWORKS TRANSIT CUSTOMERS origin: AS18635 notify: ipservices [at] columbus.co mnt-by: MAINT-AS23520 changed: rafael.espinosa [at] cwc.com 20171004 source: RADB last-modified: 2023-11-13T15:56:02Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 208.87.34.0/24 descr: COLUMBUS NETWORKS TRANSIT CUSTOMERS origin: AS18635 notify: ipservices [at] columbus.co mnt-by: MAINT-AS23520 changed: rafael.espinosa [at] cwc.com 20171004 source: RADB last-modified: 2023-11-13T15:56:02Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 208.87.35.0/24 descr: COLUMBUS NETWORKS TRANSIT CUSTOMERS origin: AS18635 notify: ipservices [at] columbus.co mnt-by: MAINT-AS23520 changed: rafael.espinosa [at] cwc.com 20171004 source: RADB last-modified: 2023-11-13T15:56:02Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 208.87.36.0/24 descr: COLUMBUS NETWORKS TRANSIT CUSTOMERS origin: AS18635 notify: ipservices [at] columbus.co mnt-by: MAINT-AS23520 changed: rafael.espinosa [at] cwc.com 20171004 source: RADB last-modified: 2023-11-13T15:56:02Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 208.87.37.0/24 descr: COLUMBUS NETWORKS TRANSIT CUSTOMERS origin: AS18635 notify: ipservices [at] columbus.co mnt-by: MAINT-AS23520 changed: rafael.espinosa [at] cwc.com 20171004 source: RADB last-modified: 2023-11-13T15:56:02Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 208.87.38.0/24 descr: COLUMBUS NETWORKS TRANSIT CUSTOMERS origin: AS18635 notify: ipservices [at] columbus.co mnt-by: MAINT-AS23520 changed: rafael.espinosa [at] cwc.com 20171004 source: RADB last-modified: 2023-11-13T15:56:02Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source