These entries are queried from radb.net using whois, you can try my project getting these.
:AS270596 route: 187.17.136.0/22 origin: AS270596 remarks: Auto-created by TC IRR from NIC.br and RIPE RIS data notify: rafael [at] vibefibra.net.br mnt-by: MAINT-AS270596 source: TC last-modified: 2021-06-07T12:50:47Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route6: 2804:6e6c::/32 origin: AS270596 remarks: Auto-created by TC IRR from NIC.br and RIPE RIS data notify: rafael [at] vibefibra.net.br mnt-by: MAINT-AS270596 source: TC last-modified: 2021-06-07T12:50:47Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source