These entries are queried from radb.net using whois, you can try my project getting these.
:AS9775 route: 59.26.221.0/24 descr: Hannam University origin: AS9775 mnt-by: MAINT-AS4766 changed: nw [at] kornet.net 20100121 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: 59.26.221.0/24 descr: SKNETWORKS origin: AS9775 notify: ip-tech [at] sknetworks.co.kr notify: korea-tec-gl [at] ntt.com mnt-by: MAINT-SKNETWORKS changed: ip-tech [at] sknetworks.co.kr 20081231 source: NTTCOM rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 59.26.222.0/23 descr: Hannam University origin: AS9775 mnt-by: MAINT-AS4766 changed: nw [at] kornet.net 20100121 source: RADB last-modified: 2023-11-13T16:15:44Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 59.26.222.0/24 descr: SKNETWORKS origin: AS9775 notify: ip-tech [at] sknetworks.co.kr notify: korea-tec-gl [at] ntt.com mnt-by: MAINT-SKNETWORKS changed: ip-tech [at] sknetworks.co.kr 20081231 source: NTTCOM rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 59.26.223.0/24 descr: SKNETWORKS origin: AS9775 notify: ip-tech [at] sknetworks.co.kr notify: korea-tec-gl [at] ntt.com mnt-by: MAINT-SKNETWORKS changed: ip-tech [at] sknetworks.co.kr 20081231 source: NTTCOM rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 202.30.54.0/24 descr: SKNETWORKS origin: AS9775 notify: ip-tech [at] sknetworks.co.kr notify: korea-tec-gl [at] ntt.com mnt-by: MAINT-SKNETWORKS changed: ip-tech [at] sknetworks.co.kr 20081231 source: NTTCOM rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 202.30.54.0/24 descr: Hannam University origin: AS9775 mnt-by: MAINT-AS4766 changed: nw [at] kornet.net 20100121 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: 203.241.32.0/21 descr: Hannam University origin: AS9775 mnt-by: MAINT-AS4766 changed: ipnoc [at] kt.com 20170313 #04:26:47Z 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: 203.247.32.0/19 descr: SKNETWORKS origin: AS9775 notify: ip-tech [at] sknetworks.co.kr notify: korea-tec-gl [at] ntt.com mnt-by: MAINT-SKNETWORKS changed: ip-tech [at] sknetworks.co.kr 20081231 source: NTTCOM rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 203.247.32.0/19 descr: Hannam University origin: AS9775 mnt-by: MAINT-AS4766 changed: nw [at] kornet.net 20100121 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: 203.247.212.0/22 descr: Hannam University origin: AS9775 mnt-by: MAINT-AS4766 changed: nw [at] kornet.net 20100121 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: 203.247.212.0/22 descr: SKNETWORKS origin: AS9775 notify: ip-tech [at] sknetworks.co.kr notify: korea-tec-gl [at] ntt.com mnt-by: MAINT-SKNETWORKS changed: ip-tech [at] sknetworks.co.kr 20081231 source: NTTCOM rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 210.125.104.0/23 descr: Hannam University origin: AS9775 mnt-by: MAINT-AS4766 changed: nw [at] kornet.net 20100121 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: 210.125.104.0/24 descr: SKNETWORKS origin: AS9775 notify: ip-tech [at] sknetworks.co.kr notify: korea-tec-gl [at] ntt.com mnt-by: MAINT-SKNETWORKS changed: ip-tech [at] sknetworks.co.kr 20081231 source: NTTCOM rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 210.125.105.0/24 descr: SKNETWORKS origin: AS9775 notify: ip-tech [at] sknetworks.co.kr notify: korea-tec-gl [at] ntt.com mnt-by: MAINT-SKNETWORKS changed: ip-tech [at] sknetworks.co.kr 20081231 source: NTTCOM rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 210.125.106.0/24 descr: SKNETWORKS origin: AS9775 notify: ip-tech [at] sknetworks.co.kr notify: korea-tec-gl [at] ntt.com mnt-by: MAINT-SKNETWORKS changed: ip-tech [at] sknetworks.co.kr 20081231 source: NTTCOM rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 210.125.106.0/24 descr: Hannam University origin: AS9775 mnt-by: MAINT-AS4766 changed: nw [at] kornet.net 20100121 source: RADB last-modified: 2023-11-13T16:15:43Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source