These entries are queried from radb.net using whois, you can try my project getting these.
:AS10052 route: 61.42.104.0/24 origin: AS10052 descr: Kyungpook National University mnt-by: MAINT-AS4766 changed: ipnoc [at] kt.com 20210524 #07:27:54Z source: RADB last-modified: 2023-11-13T16:15:46Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 115.88.90.0/24 origin: AS10052 descr: Kyungpook National University mnt-by: MAINT-AS4766 changed: ipnoc [at] kt.com 20210524 #07:28:21Z source: RADB last-modified: 2023-11-13T16:15:46Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 118.128.220.0/24 origin: AS10052 descr: Kyungpook National University mnt-by: MAINT-AS4766 changed: ipnoc [at] kt.com 20210524 #07:28:45Z source: RADB last-modified: 2023-11-13T16:15:46Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 118.129.146.0/24 origin: AS10052 descr: Kyungpook National University mnt-by: MAINT-AS4766 changed: ipnoc [at] kt.com 20210524 #07:29:12Z source: RADB last-modified: 2023-11-13T16:15:46Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 118.130.19.0/24 origin: AS10052 descr: Kyungpook National University mnt-by: MAINT-AS4766 changed: ipnoc [at] kt.com 20210524 #07:29:38Z source: RADB last-modified: 2023-11-13T16:15:46Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 121.65.176.0/24 origin: AS10052 descr: Kyungpook National University mnt-by: MAINT-AS4766 changed: ipnoc [at] kt.com 20210524 #07:30:04Z source: RADB last-modified: 2023-11-13T16:15:46Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 121.65.177.0/24 origin: AS10052 descr: Kyungpook National University mnt-by: MAINT-AS4766 changed: ipnoc [at] kt.com 20210524 #07:30:54Z source: RADB last-modified: 2023-11-13T16:15:46Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 121.65.178.0/24 origin: AS10052 descr: Kyungpook National University mnt-by: MAINT-AS4766 changed: ipnoc [at] kt.com 20210524 #07:31:17Z source: RADB last-modified: 2023-11-13T16:15:46Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 155.230.0.0/16 descr: KNU-AS origin: AS10052 notify: ip-tech [at] sknetworks.co.kr notify: korea-ip-gl [at] ntt.com mnt-by: MAINT-SKNETWORKS changed: kubby [at] sknetworks.co.kr 20050325 source: NTTCOM rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 155.230.0.0/16 descr: contact djbang [at] bh.knu.ac.kr if necessary origin: AS10052 mnt-by: MAINT-AS3786 changed: yuncheol [at] bora.net 20011223 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: 220.66.213.0/24 origin: AS10052 descr: AS10052 mnt-by: MAINT-AS9318 changed: noc [at] skbroadband.com 20190103 source: RADB last-modified: 2023-11-13T15:57:00Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 220.66.214.0/24 origin: AS10052 descr: AS10052 mnt-by: MAINT-AS9318 changed: noc [at] skbroadband.com 20190103 source: RADB last-modified: 2023-11-13T15:57:00Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 220.66.215.0/24 origin: AS10052 descr: AS10052 mnt-by: MAINT-AS9318 changed: noc [at] skbroadband.com 20190103 source: RADB last-modified: 2023-11-13T15:57:00Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 220.66.216.0/24 origin: AS10052 descr: AS10052 mnt-by: MAINT-AS9318 changed: noc [at] skbroadband.com 20190103 source: RADB last-modified: 2023-11-13T15:57:00Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 220.66.217.0/24 origin: AS10052 descr: AS10052 mnt-by: MAINT-AS9318 changed: noc [at] skbroadband.com 20190103 source: RADB last-modified: 2023-11-13T15:57:00Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 220.66.218.0/24 origin: AS10052 descr: AS10052 mnt-by: MAINT-AS9318 changed: noc [at] skbroadband.com 20190103 source: RADB last-modified: 2023-11-13T15:57:00Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 220.66.219.0/24 origin: AS10052 descr: AS10052 mnt-by: MAINT-AS9318 changed: noc [at] skbroadband.com 20190103 source: RADB last-modified: 2023-11-13T15:57:00Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 220.66.220.0/24 origin: AS10052 descr: AS10052 mnt-by: MAINT-AS9318 changed: noc [at] skbroadband.com 20190103 source: RADB last-modified: 2023-11-13T15:57:00Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source