These entries are queried from radb.net using whois, you can try my project getting these.
:AS17593 route: 61.32.253.0/24 descr: contact anyoon [at] intectel.co.kr if necessary origin: AS17593 mnt-by: MAINT-AS3786 changed: ysjeon7 [at] bora.net 20010704 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: 203.249.160.0/24 descr: KORNET origin: AS17593 mnt-by: MAINT-AS4766 changed: curoo [at] kornet.net 20081021 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: 203.249.161.0/24 descr: KORNET origin: AS17593 mnt-by: MAINT-AS4766 changed: curoo [at] kornet.net 20081021 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: 203.249.162.0/24 descr: KORNET origin: AS17593 mnt-by: MAINT-AS4766 changed: curoo [at] kornet.net 20081021 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: 203.249.163.0/24 descr: KORNET origin: AS17593 mnt-by: MAINT-AS4766 changed: curoo [at] kornet.net 20081021 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: 203.249.164.0/24 descr: KORNET origin: AS17593 mnt-by: MAINT-AS4766 changed: curoo [at] kornet.net 20081021 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: 203.249.165.0/24 descr: KORNET origin: AS17593 mnt-by: MAINT-AS4766 changed: curoo [at] kornet.net 20081021 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: 203.249.166.0/24 descr: KORNET origin: AS17593 mnt-by: MAINT-AS4766 changed: curoo [at] kornet.net 20081021 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: 203.249.167.0/24 descr: KORNET origin: AS17593 mnt-by: MAINT-AS4766 changed: curoo [at] kornet.net 20081021 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: 203.249.168.0/24 descr: KORNET origin: AS17593 mnt-by: MAINT-AS4766 changed: curoo [at] kornet.net 20081021 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: 203.249.169.0/24 descr: KORNET origin: AS17593 mnt-by: MAINT-AS4766 changed: curoo [at] kornet.net 20081021 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: 203.249.170.0/24 descr: KORNET origin: AS17593 mnt-by: MAINT-AS4766 changed: curoo [at] kornet.net 20081021 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: 203.249.171.0/24 descr: KORNET origin: AS17593 mnt-by: MAINT-AS4766 changed: curoo [at] kornet.net 20081021 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: 203.249.172.0/24 descr: KORNET origin: AS17593 mnt-by: MAINT-AS4766 changed: curoo [at] kornet.net 20081021 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: 203.249.173.0/24 descr: KORNET origin: AS17593 mnt-by: MAINT-AS4766 changed: curoo [at] kornet.net 20081021 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: 203.249.174.0/24 descr: KORNET origin: AS17593 mnt-by: MAINT-AS4766 changed: curoo [at] kornet.net 20081021 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: 203.249.175.0/24 descr: KORNET origin: AS17593 mnt-by: MAINT-AS4766 changed: curoo [at] kornet.net 20081021 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: 203.249.176.0/24 descr: KORNET origin: AS17593 mnt-by: MAINT-AS4766 changed: curoo [at] kornet.net 20081021 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: 203.249.177.0/24 descr: KORNET origin: AS17593 mnt-by: MAINT-AS4766 changed: curoo [at] kornet.net 20081021 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: 203.249.178.0/24 descr: KORNET origin: AS17593 mnt-by: MAINT-AS4766 changed: curoo [at] kornet.net 20081021 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: 203.249.179.0/24 descr: KORNET origin: AS17593 mnt-by: MAINT-AS4766 changed: curoo [at] kornet.net 20081021 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: 203.249.191.0/24 descr: KORNET origin: AS17593 mnt-by: MAINT-AS4766 changed: luxo [at] kt.co.kr 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: 211.188.32.0/24 descr: contact anyoon [at] intectel.co.kr if necessary origin: AS17593 mnt-by: MAINT-AS3786 changed: ysjeon7 [at] bora.net 20010704 source: RADB last-modified: 2023-11-13T16:09:27Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source