These entries are queried from radb.net using whois, you can try my project getting these.
:AS9633 route: 103.53.114.0/24 descr: Sudogwan maripji origin: AS9633 mnt-by: MAINT-AS4766 changed: ipnoc [at] kt.com 20150605 #07:18:38Z source: RADB last-modified: 2023-11-13T16:15:45Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 210.90.82.0/24 descr: origin: AS9633 mnt-by: MAINT-AS3786 changed: yuncheol [at] bora.net 20041223 source: RADB last-modified: 2023-11-13T16:09:30Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 211.35.62.0/26 descr: origin: AS9633 mnt-by: MAINT-AS4766 changed: kadbi [at] kornet.net 20060320 source: RADB last-modified: 2023-11-13T16:15:43Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source