These entries are queried from radb.net using whois, you can try my project getting these.
:AS53051 route: 187.84.16.0/20 origin: AS53051 remarks: Auto-created by TC IRR from NIC.br and RIPE RIS data notify: comnt [at] comnt.com.br mnt-by: MAINT-AS53051 source: TC last-modified: 2022-02-12T12:14:22Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 187.84.16.0/22 descr: G8 Networks origin: AS53051 mnt-by: MAINT-AS28329 changed: aldo.russo [at] g8.net.br 20150922 source: RADB last-modified: 2023-11-13T15:48:09Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route6: 2804:48::/32 origin: AS53051 remarks: Auto-created by TC IRR from NIC.br and RIPE RIS data notify: comnt [at] comnt.com.br mnt-by: MAINT-AS53051 source: TC last-modified: 2022-02-12T12:14:22Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route6: 2804:48::/32 descr: Cemig origin: AS53051 mnt-by: MAINT-AS18678 changed: adminred [at] internexa.com 20170203 #13:53:20Z source: RADB last-modified: 2023-11-13T15:50:37Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source