These entries are queried from radb.net using whois, you can try my project getting these.
:AS18299 route: 210.102.144.0/21 descr: Sin-Goo University origin: AS18299 mnt-by: MAINT-AS4766 changed: curoo [at] kornet.net 20081114 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: 211.117.55.0/24 descr: BS origin: AS18299 mnt-by: MAINT-AS4766 changed: ipnoc [at] kt.com 20141217 #14:24:44Z 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: 222.110.21.0/24 descr: BS origin: AS18299 mnt-by: MAINT-AS4766 changed: ipnoc [at] kt.com 20141217 #14:24:10Z source: RADB last-modified: 2023-11-13T16:15:46Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source