These entries are queried from radb.net using whois, you can try my project getting these.
:AS140064 route: 103.148.0.0/24 origin: AS140064 descr: ISAAC REGIONAL COUNCIL Grosvenor Complex, Batchelor Parade mnt-by: MAINT-IRC-AU last-modified: 2020-06-09T04:01:52Z source: APNIC rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source