These entries are queried from radb.net using whois, you can try my project getting these.
:AS17662 route: 203.8.4.0/22 descr: Anixter Australia Pty Ltd origin: AS17662 mnt-by: MAINT-AS7474 changed: routing [at] cwo.net.au 20010521 source: RADB last-modified: 2023-11-13T16:03:45Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source