These entries are queried from radb.net using whois, you can try my project getting these.
:AS38698 route: 61.101.73.0/24 descr: UBase origin: AS38698 mnt-by: MAINT-AS4766 changed: lasas001 [at] kornet.net 20100217 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: 211.59.88.0/24 descr: KORnet operation Center(Korea Telecom) origin: AS38698 mnt-by: MAINT-AS4766 changed: nw [at] kornet.net 20080514 #04:09:46Z 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: 211.59.143.0/24 descr: KORnet operation Center(Korea Telecom) origin: AS38698 mnt-by: MAINT-AS4766 changed: nw [at] kornet.net 20080514 #04:11:00Z source: RADB last-modified: 2023-11-13T16:15:45Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source