These entries are queried from radb.net using whois, you can try my project getting these.
:AS142590 route: 203.18.174.0/24 origin: AS142590 descr: Ambulance Victoria 375 Manningham Road mnt-by: MAINT-AU-AV last-modified: 2021-08-25T03:09:19Z source: APNIC rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source