These entries are queried from radb.net using whois, you can try my project getting these.
:AS9857 route: 61.36.228.0/23 descr: contact noc [at] bora.net if necessary origin: AS9857 mnt-by: MAINT-AS3786 changed: yuncheol [at] bora.net 20031120 source: RADB last-modified: 2023-11-13T16:09:27Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 61.36.228.0/24 descr: KOREA GAS CORPORATION origin: AS9857 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 route: 61.36.229.0/24 descr: KOREA GAS CORPORATION origin: AS9857 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 route: 210.124.38.0/24 descr: contact noc [at] bora.net if necessary origin: AS9857 mnt-by: MAINT-AS3786 changed: yuncheol [at] bora.net 20031120 source: RADB last-modified: 2023-11-13T16:09:27Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 210.124.209.0/24 descr: contact noc [at] bora.net if necessary origin: AS9857 mnt-by: MAINT-AS3786 changed: yuncheol [at] bora.net 20031120 source: RADB last-modified: 2023-11-13T16:09:27Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 210.124.210.0/23 descr: contact noc [at] bora.net if necessary origin: AS9857 mnt-by: MAINT-AS3786 changed: yuncheol [at] bora.net 20031120 source: RADB last-modified: 2023-11-13T16:09:27Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 210.124.210.0/24 descr: KOREA GAS CORPORATION origin: AS9857 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 route: 210.124.211.0/24 descr: KOREA GAS CORPORATION origin: AS9857 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 route: 211.36.0.0/22 descr: contact jwjung [at] shinbiro.com if necessary origin: AS9857 mnt-by: MAINT-AS3786 changed: yuncheol [at] bora.net 20011223 source: RADB last-modified: 2023-11-13T16:09:29Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 211.172.240.0/20 descr: contact jwjung [at] shinbiro.com if necessary origin: AS9857 mnt-by: MAINT-AS3786 changed: yuncheol [at] bora.net 20020822 source: RADB last-modified: 2023-11-13T16:09:31Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 211.253.204.0/24 descr: KOREA GAS CORPORATION origin: AS9857 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: 211.253.205.0/24 descr: KOREA GAS CORPORATION origin: AS9857 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: 211.253.206.0/24 descr: KOREA GAS CORPORATION origin: AS9857 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: 211.253.207.0/24 descr: KOREA GAS CORPORATION origin: AS9857 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