These entries are queried from radb.net using whois, you can try my project getting these.
:AS17632 route: 203.189.2.0/24 descr: Barristers Chambers origin: AS17632 mnt-by: MAINT-AS7474 changed: noc [at] optus.net.au 20060412 source: RADB last-modified: 2023-11-13T16:04:03Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source