These entries are queried from radb.net using whois, you can try my project getting these.
:AS38668 route: 220.149.56.0/24 descr: Konkuk University Hospital origin: AS38668 mnt-by: MAINT-AS4766 changed: oddy22 [at] kornet.net 20071213 #08:29:27(UTC) source: RADB last-modified: 2023-11-13T16:15:43Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 220.149.57.0/24 descr: Konkuk University Hospital origin: AS38668 mnt-by: MAINT-AS4766 changed: oddy22 [at] kornet.net 20071213 #08:30:46(UTC) source: RADB last-modified: 2023-11-13T16:15:43Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source