These entries are queried from radb.net using whois, you can try my project getting these.
:AS397434 route: 52.119.12.0/24 descr: Conference of State Bank Supervisors` origin: AS397434 mnt-by: MAINT-AS27506 changed: slefevre [at] lightower.com 20190507 source: RADB last-modified: 2023-11-13T15:56:07Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source