These entries are queried from radb.net using whois, you can try my project getting these.
:AS270473 route: 200.58.248.0/22 origin: AS270473 remarks: Auto-created by TC IRR from NIC.br and RIPE RIS data notify: renan.cm.dias [at] hotmail.com mnt-by: MAINT-AS270473 source: TC last-modified: 2023-07-04T21:14:49Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route6: 2804:6c84::/32 origin: AS270473 remarks: Auto-created by TC IRR from NIC.br and RIPE RIS data notify: renan.cm.dias [at] hotmail.com mnt-by: MAINT-AS270473 source: TC last-modified: 2023-07-04T21:14:50Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source