These entries are queried from radb.net using whois, you can try my project getting these.
:AS17591 route: 203.246.118.0/24 descr: contact noc [at] bora.net if necessary contact noc [at] bora.net if necessary origin: AS17591 mnt-by: MAINT-AS3786 changed: yuncheol [at] bora.net 20021216 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: 203.252.27.0/24 descr: Korea Research Foundation origin: AS17591 mnt-by: MAINT-AS4766 changed: jyoungk [at] streamwk.kix.net 20010629 source: RADB last-modified: 2023-11-13T16:15:43Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source