These entries are queried from radb.net using whois, you can try my project getting these.
:AS270303 route: 201.216.116.0/22 origin: AS270303 remarks: Auto-created by TC IRR from NIC.br and RIPE RIS data notify: genildomonteiro_reis [at] hotmail.com mnt-by: MAINT-AS270303 source: TC last-modified: 2021-06-26T04:46:42Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route6: 2804:69f8::/32 origin: AS270303 remarks: Auto-created by TC IRR from NIC.br and RIPE RIS data notify: genildomonteiro_reis [at] hotmail.com mnt-by: MAINT-AS270303 source: TC last-modified: 2021-06-26T04:46:42Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source