These entries are queried from radb.net using whois, you can try my project getting these.
:AS37898 route: 210.135.96.0/20 descr: digitiminimi, inc. origin: AS37898 notify: admin [at] int-gw.kddi.ne.jp mnt-by: MAINT-AS2516 changed: admin [at] int-gw.kddi.ne.jp 20210428 source: RADB last-modified: 2023-11-13T16:05:31Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source