These entries are queried from radb.net using whois, you can try my project getting these.
:AS31292 route: 147.160.55.0/24 descr: Up North Hosting origin: AS31292 mnt-by: MAINT-AS27506 changed: yikehara [at] lightower.com 20190603 source: RADB last-modified: 2023-11-13T15:56:26Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source