These entries are queried from radb.net using whois, you can try my project getting these.
:AS264278 route: 138.121.48.0/22 descr: /22 Microtell origin: AS264278 mnt-by: MAINT-AS262606 changed: heley [at] microtell.com.br 20211110 source: ALTDB rpki-ov-state: valid route: 138.121.48.0/22 descr: G8 Networks origin: AS264278 mnt-by: MAINT-AS28329 changed: aldo.russo [at] g8.net.br 20150922 source: RADB last-modified: 2023-11-13T15:48:09Z rpki-ov-state: valid route6: 2804:2564::/32 descr: /32 Microtell origin: AS264278 mnt-by: MAINT-AS262606 changed: heley [at] microtell.com.br 20211110 source: ALTDB rpki-ov-state: valid route6: 2804:2564::/32 descr: G8 Networks origin: AS264278 mnt-by: MAINT-AS28329 changed: aldo.russo [at] g8.net.br 20160620 source: RADB last-modified: 2023-11-13T15:49:33Z rpki-ov-state: valid