These entries are queried from radb.net using whois, you can try my project getting these.
:AS10046 route: 203.230.152.0/22 descr: HOWON UNIVERSITY origin: AS10046 mnt-by: MAINT-AS4766 changed: jyoungk [at] streamwk.kix.net 20000703 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: 203.246.64.0/21 descr: HOWON UNIVERSITY origin: AS10046 mnt-by: MAINT-AS4766 changed: jyoungk [at] streamwk.kix.net 20000703 source: RADB last-modified: 2023-11-13T16:15:43Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source