These entries are queried from radb.net using whois, you can try my project getting these.
:AS263896 route: 138.204.144.0/22 origin: AS263896 remarks: Auto-created by TC IRR from NIC.br and RIPE RIS data notify: luan [at] experts.net.br mnt-by: MAINT-AS263896 source: TC last-modified: 2021-09-08T18:59:53Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 138.204.147.0/24 descr: ITX-GRUPOG1 origin: AS263896 mnt-by: MAINT-AS18678 changed: noc [at] internexa.com 20180606 #16:00:30Z source: RADB last-modified: 2023-11-13T15:53:46Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route6: 2804:275c::/32 origin: AS263896 remarks: Auto-created by TC IRR from NIC.br and RIPE RIS data notify: luan [at] experts.net.br mnt-by: MAINT-AS263896 source: TC last-modified: 2021-09-08T18:59:53Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source