These entries are queried from radb.net using whois, you can try my project getting these.
:AS9631 route: 211.57.231.0/25 descr: Korean Red Cross origin: AS9631 mnt-by: MAINT-AS4766 changed: driftey [at] kornet.net 20040827 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: 211.57.231.128/25 descr: Korean Red Cross origin: AS9631 mnt-by: MAINT-AS4766 changed: grant96 [at] kornet.net 20051228 source: RADB last-modified: 2023-11-13T16:15:43Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source