These entries are queried from radb.net using whois, you can try my project getting these.
:AS9867 route: 203.249.35.0/24 descr: CHONJU TECHNICAL COLLEGE origin: AS9867 mnt-by: MAINT-AS4766 changed: choi [at] streamwk.kix.net 20010214 source: RADB last-modified: 2023-11-13T16:15:42Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 210.93.68.0/24 descr: CHONJU TECHNICAL COLLEGE origin: AS9867 mnt-by: MAINT-AS4766 changed: choi [at] streamwk.kix.net 20010214 source: RADB last-modified: 2023-11-13T16:15:42Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 210.93.69.0/24 descr: CHONJU TECHNICAL COLLEGE origin: AS9867 mnt-by: MAINT-AS4766 changed: choi [at] streamwk.kix.net 20010214 source: RADB last-modified: 2023-11-13T16:15:42Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 210.93.70.0/24 descr: KORnet operation Center origin: AS9867 mnt-by: MAINT-AS4766 changed: kscho [at] streamwk.kix.net 20000425 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: 210.93.71.0/24 descr: CHONJU TECHNICAL COLLEGE origin: AS9867 mnt-by: MAINT-AS4766 changed: jacob [at] kornet.net 20030903 source: RADB last-modified: 2023-11-13T16:15:42Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 210.125.192.0/24 descr: CHONJU TECHNICAL COLLEGE origin: AS9867 mnt-by: MAINT-AS4766 changed: choi [at] streamwk.kix.net 20010214 source: RADB last-modified: 2023-11-13T16:15:42Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 210.125.193.0/24 descr: CHONJU TECHNICAL COLLEGE origin: AS9867 mnt-by: MAINT-AS4766 changed: choi [at] streamwk.kix.net 20010214 source: RADB last-modified: 2023-11-13T16:15:42Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 210.125.194.0/24 descr: CHONJU TECHNICAL COLLEGE origin: AS9867 mnt-by: MAINT-AS4766 changed: choi [at] streamwk.kix.net 20010214 source: RADB last-modified: 2023-11-13T16:15:42Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 210.125.195.0/24 descr: CHONJU TECHNICAL COLLEGE origin: AS9867 mnt-by: MAINT-AS4766 changed: choi [at] streamwk.kix.net 20010214 source: RADB last-modified: 2023-11-13T16:15:42Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 210.125.196.0/24 descr: CHONJU TECHNICAL COLLEGE origin: AS9867 mnt-by: MAINT-AS4766 changed: choi [at] streamwk.kix.net 20010214 source: RADB last-modified: 2023-11-13T16:15:42Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 210.125.197.0/24 descr: CHONJU TECHNICAL COLLEGE origin: AS9867 mnt-by: MAINT-AS4766 changed: choi [at] streamwk.kix.net 20010214 source: RADB last-modified: 2023-11-13T16:15:42Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 210.125.198.0/24 descr: CHONJU TECHNICAL COLLEGE origin: AS9867 mnt-by: MAINT-AS4766 changed: choi [at] streamwk.kix.net 20010214 source: RADB last-modified: 2023-11-13T16:15:42Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 210.125.199.0/24 descr: CHONJU TECHNICAL COLLEGE origin: AS9867 mnt-by: MAINT-AS4766 changed: choi [at] streamwk.kix.net 20010214 source: RADB last-modified: 2023-11-13T16:15:42Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 218.151.10.0/23 descr: contact noc [at] bora.net if necessary origin: AS9867 mnt-by: MAINT-AS3786 changed: yuncheol [at] bora.net 20030102 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: 218.151.10.0/24 descr: CHONJU TECHNICAL COLLEGE origin: AS9867 mnt-by: MAINT-AS4766 changed: chss93 [at] soback.kornet.net 20030905 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: 218.151.11.0/24 descr: CHONJU TECHNICAL COLLEGE origin: AS9867 mnt-by: MAINT-AS4766 changed: chss93 [at] soback.kornet.net 20030905 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: 220.66.132.0/22 descr: contact noc [at] bora.net if necessary origin: AS9867 mnt-by: MAINT-AS3786 changed: yuncheol [at] bora.net 20030102 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: 220.66.136.0/23 descr: contact noc [at] bora.net if necessary origin: AS9867 mnt-by: MAINT-AS3786 changed: yuncheol [at] bora.net 20030102 source: RADB last-modified: 2023-11-13T16:09:30Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source