These entries are queried from radb.net using whois, you can try my project getting these.
:AS263303 route: 177.190.248.0/21 origin: AS263303 remarks: Auto-created by TC IRR from NIC.br and RIPE RIS data notify: provedorsaltonet [at] gmail.com mnt-by: MAINT-AS263303 source: TC last-modified: 2021-08-11T17:27:24Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 177.190.248.0/21 descr: G8 Networks origin: AS263303 mnt-by: MAINT-AS28329 changed: aldo.russo [at] g8.net.br 20170403 source: RADB last-modified: 2023-11-13T15:50:56Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route6: 2804:13f0::/32 origin: AS263303 remarks: Auto-created by TC IRR from NIC.br and RIPE RIS data notify: provedorsaltonet [at] gmail.com mnt-by: MAINT-AS263303 source: TC last-modified: 2021-08-11T17:27:24Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route6: 2804:13f0::/32 descr: ITX-VSX origin: AS263303 mnt-by: MAINT-AS18678 changed: noc [at] internexa.com 20180307 #15:14:28Z source: RADB last-modified: 2023-11-13T15:53:21Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source