These entries are queried from radb.net using whois, you can try my project getting these.
:AS28216 route: 177.38.224.0/21 descr: Host Revenda origin: AS28216 mnt-by: MAINT-AS28216 notify: db-admin [at] bgp.net.br changed: db-admin [at] bgp.net.br 20170411 #16:09:47(BRT) source: TC last-modified: 2021-05-05T02:07:41Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source