These entries are queried from radb.net using whois, you can try my project getting these.
:AS27873 route: 200.6.52.0/24 descr: COLUMBUS NETWORKS TRANSIT CUSTOMERS origin: AS27873 notify: ipservices [at] columbus-networks.com mnt-by: MAINT-AS23520 changed: respinosa [at] columbus-networks.com 20140103 source: RADB last-modified: 2023-11-13T15:55:48Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source