These entries are queried from radb.net using whois, you can try my project getting these.
:AS263900 route: 138.204.148.0/22 origin: AS263900 remarks: Auto-created by TC IRR from NIC.br and RIPE RIS data notify: comercial [at] chnet.net.br mnt-by: MAINT-AS263900 source: TC last-modified: 2023-08-17T22:54:57Z rpki-ov-state: valid route: 138.204.148.0/23 descr: CHNET Telecom Block origin: AS263900 mnt-by: MAINT-AS263900 changed: fernando [at] beesolutions.com.br source: TC last-modified: 2023-08-18T01:03:17Z rpki-ov-state: valid route: 138.204.148.0/24 descr: CHNET Telecom Block origin: AS263900 mnt-by: MAINT-AS263900 changed: fernando [at] beesolutions.com.br source: TC last-modified: 2023-08-18T01:00:34Z rpki-ov-state: valid route: 138.204.149.0/24 descr: CHNET Telecom Block origin: AS263900 mnt-by: MAINT-AS263900 changed: fernando [at] beesolutions.com.br source: TC last-modified: 2023-08-18T01:03:17Z rpki-ov-state: valid route: 138.204.150.0/23 descr: CHNET Telecom Block origin: AS263900 mnt-by: MAINT-AS263900 changed: fernando [at] beesolutions.com.br source: TC last-modified: 2023-08-18T01:03:17Z rpki-ov-state: valid route: 138.204.150.0/24 descr: CHNET Telecom Block origin: AS263900 mnt-by: MAINT-AS263900 changed: fernando [at] beesolutions.com.br source: TC last-modified: 2023-08-18T01:03:17Z rpki-ov-state: valid route: 138.204.151.0/24 descr: CHNET Telecom Block origin: AS263900 mnt-by: MAINT-AS263900 changed: fernando [at] beesolutions.com.br source: TC last-modified: 2023-08-18T01:03:17Z rpki-ov-state: valid route6: 2804:276c::/32 origin: AS263900 remarks: Auto-created by TC IRR from NIC.br and RIPE RIS data notify: comercial [at] chnet.net.br mnt-by: MAINT-AS263900 source: TC last-modified: 2023-08-17T22:54:58Z rpki-ov-state: valid route6: 2804:276c::/32 descr: ITX-CPNET origin: AS263900 mnt-by: MAINT-AS18678 changed: adminred [at] internexa.com 20160511 #19:44:59Z source: RADB last-modified: 2023-11-13T15:49:08Z rpki-ov-state: valid