These entries are queried from radb.net using whois, you can try my project getting these.
:AS55633 route: 1.209.184.0/24 descr: Bundang Jaesang Hosipital origin: AS55633 mnt-by: MAINT-AS4766 changed: nw [at] kornet.net 20120319 source: RADB last-modified: 2023-11-13T16:15:46Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source