These entries are queried from radb.net using whois, you can try my project getting these.
:AS264281 route: 138.121.52.0/22 descr: RS Portal Ltda. origin: AS264281 notify: db-admin [at] bgp.net.br mnt-by: MAINT-AS264281 changed: db-admin [at] bgp.net.br 20191206 source: TC last-modified: 2021-05-05T02:07:41Z rpki-ov-state: valid route: 138.121.52.0/22 descr: OPENX to RS Portal Ltda origin: AS264281 admin-c: Eduardo Fumes Parajo tech-c: Epafras Rezende Schaden mnt-by: MAINT-AS22356 changed: epafras [at] durand.com.br 20200218 source: RADB last-modified: 2023-11-13T15:59:45Z rpki-ov-state: valid route: 170.233.172.0/22 descr: RS Portal Ltda. origin: AS264281 notify: db-admin [at] bgp.net.br mnt-by: MAINT-AS264281 changed: db-admin [at] bgp.net.br 20191206 source: TC last-modified: 2021-05-05T02:07:41Z rpki-ov-state: valid route: 170.233.172.0/22 descr: OPENX to RS Portal Ltda origin: AS264281 admin-c: Eduardo Fumes Parajo tech-c: Epafras Rezende Schaden mnt-by: MAINT-AS22356 changed: epafras [at] durand.com.br 20200218 source: RADB last-modified: 2023-11-13T15:59:45Z rpki-ov-state: valid route: 170.244.12.0/22 descr: G8 Customer Proxy Route origin: AS264281 mnt-by: MAINT-AS28329 changed: no-reply [at] g8.net.br 20210128 source: RADB last-modified: 2023-11-13T16:03:31Z rpki-ov-state: valid route: 170.244.12.0/22 descr: RS Portal Ltda. origin: AS264281 notify: db-admin [at] bgp.net.br mnt-by: MAINT-AS264281 changed: db-admin [at] bgp.net.br 20191206 source: TC last-modified: 2021-05-05T02:07:41Z rpki-ov-state: valid route6: 2804:2570::/32 descr: Cemig origin: AS264281 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: valid