These entries are queried from radb.net using whois, you can try my project getting these.
:AS55616 route: 114.71.96.0/21 descr: DGIST origin: AS55616 mnt-by: MAINT-AS4766 changed: nw [at] kornet.net 20111121 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: 114.71.100.0/24 descr: DGIST origin: AS55616 mnt-by: MAINT-AS9318 changed: noc [at] skbroadband.com 20170215 #17:00:31Z source: RADB last-modified: 2023-11-13T15:50:50Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 114.71.101.0/24 descr: SejongTelecom.co.ltd origin: AS55616 mnt-by: MAINT-AS4670 changed: network [at] sejongtelecom.net 20201223 source: RADB last-modified: 2023-11-13T16:03:09Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 114.71.104.0/22 descr: DGIST origin: AS55616 mnt-by: MAINT-AS4766 changed: nw [at] kornet.net 20111121 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: 114.71.108.0/23 descr: DGIST origin: AS55616 mnt-by: MAINT-AS4766 changed: nw [at] kornet.net 20111121 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: 114.71.110.0/24 descr: DGIST origin: AS55616 mnt-by: MAINT-AS4766 changed: nw [at] kornet.net 20111121 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: 210.110.244.0/24 descr: DGIST origin: AS55616 mnt-by: MAINT-AS9318 changed: noc [at] skbroadband.com 20170215 #17:00:31Z source: RADB last-modified: 2023-11-13T15:50:50Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 210.113.236.160/27 descr: DGIST origin: AS55616 mnt-by: MAINT-AS4766 changed: nw [at] kornet.net 20111121 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: 210.119.38.0/23 descr: DGIST origin: AS55616 mnt-by: MAINT-AS4766 changed: nw [at] kornet.net 20111129 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: 211.63.235.0/24 descr: DGIST origin: AS55616 mnt-by: MAINT-AS4766 changed: nw [at] kornet.net 20111121 source: RADB last-modified: 2023-11-13T16:15:44Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source