These entries are queried from radb.net using whois, you can try my project getting these.
:AS28657 route: 138.99.96.0/22 descr: MD Brasil - Tecnologia da Informa\xe7\xe3o Ltda origin: AS28657 notify: suporte [at] mdbrasil.com.br mnt-by: MAINT-AS28657 changed: suporte [at] mdbrasil.com.br 20220806 source: TC last-modified: 2022-08-06T15:04:35Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 138.99.96.0/23 descr: MD Brasil - Tecnologia da Informa\xe7\xe3o Ltda origin: AS28657 notify: suporte [at] mdbrasil.com.br mnt-by: MAINT-AS28657 changed: suporte [at] mdbrasil.com.br 20220806 source: TC last-modified: 2022-08-06T15:04:35Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 138.99.96.0/24 descr: MD Brasil - Tecnologia da Informa\xe7\xe3o Ltda origin: AS28657 notify: suporte [at] mdbrasil.com.br mnt-by: MAINT-AS28657 changed: suporte [at] mdbrasil.com.br 20220806 source: TC last-modified: 2022-08-06T15:04:35Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 138.99.97.0/24 descr: MD Brasil - Tecnologia da Informa\xe7\xe3o Ltda origin: AS28657 notify: suporte [at] mdbrasil.com.br mnt-by: MAINT-AS28657 changed: suporte [at] mdbrasil.com.br 20220806 source: TC last-modified: 2022-08-06T15:04:35Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 138.99.98.0/23 descr: MD Brasil - Tecnologia da Informa\xe7\xe3o Ltda origin: AS28657 notify: suporte [at] mdbrasil.com.br mnt-by: MAINT-AS28657 changed: suporte [at] mdbrasil.com.br 20220806 source: TC last-modified: 2022-08-06T15:04:35Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 138.99.98.0/24 descr: MD Brasil - Tecnologia da Informa\xe7\xe3o Ltda origin: AS28657 notify: suporte [at] mdbrasil.com.br mnt-by: MAINT-AS28657 changed: suporte [at] mdbrasil.com.br 20220806 source: TC last-modified: 2022-08-06T15:04:35Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 138.99.99.0/24 descr: MD Brasil - Tecnologia da Informa\xe7\xe3o Ltda origin: AS28657 notify: suporte [at] mdbrasil.com.br mnt-by: MAINT-AS28657 changed: suporte [at] mdbrasil.com.br 20220806 source: TC last-modified: 2022-08-06T15:04:35Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route6: 2804:40::/32 descr: SPACE NETWORK origin: AS28657 mnt-by: MAINT-SPACENETWORK changed: nilsonsnake [at] gmail.com 20180723 source: NTTCOM rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route6: 2804:40::/32 descr: MD Brasil - Tecnologia da Informa\xe7\xe3o Ltda origin: AS28657 notify: suporte [at] mdbrasil.com.br mnt-by: MAINT-AS28657 changed: suporte [at] mdbrasil.com.br 20220806 source: TC last-modified: 2022-08-06T15:04:35Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route6: 2804:40::/32 descr: Red IPV6 Cliente final MD Brasil - Tecnologia da Informação Ltda, Cliente mio NT Brasil Tecnologia. origin: AS28657 mnt-by: MAINT-AS18678 changed: adminred [at] internexa.com 20140103 #14:46:02Z source: RADB last-modified: 2023-11-13T15:45:57Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route6: 2804:40:1000::/36 descr: MD Brasil - Tecnologia da Informa\xe7\xe3o Ltda origin: AS28657 notify: suporte [at] mdbrasil.com.br mnt-by: MAINT-AS28657 changed: suporte [at] mdbrasil.com.br 20220806 source: TC last-modified: 2022-08-06T15:04:35Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route6: 2804:40:2000::/36 descr: MD Brasil - Tecnologia da Informa\xe7\xe3o Ltda origin: AS28657 notify: suporte [at] mdbrasil.com.br mnt-by: MAINT-AS28657 changed: suporte [at] mdbrasil.com.br 20220806 source: TC last-modified: 2022-08-06T15:04:35Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route6: 2804:40:3000::/36 descr: MD Brasil - Tecnologia da Informa\xe7\xe3o Ltda origin: AS28657 notify: suporte [at] mdbrasil.com.br mnt-by: MAINT-AS28657 changed: suporte [at] mdbrasil.com.br 20220806 source: TC last-modified: 2022-08-06T15:04:35Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route6: 2804:40:4000::/36 descr: MD Brasil - Tecnologia da Informa\xe7\xe3o Ltda origin: AS28657 notify: suporte [at] mdbrasil.com.br mnt-by: MAINT-AS28657 changed: suporte [at] mdbrasil.com.br 20220806 source: TC last-modified: 2022-08-06T15:04:35Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route6: 2804:40:4000::/37 descr: MD Brasil - Tecnologia da Informação Ltda origin: AS28657 notify: suporte [at] mdbrasil.com.br mnt-by: MAINT-AS28657 changed: suporte [at] mdbrasil.com.br 20200914 source: TC rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route6: 2804:40:5000::/36 descr: MD Brasil - Tecnologia da Informa\xe7\xe3o Ltda origin: AS28657 notify: suporte [at] mdbrasil.com.br mnt-by: MAINT-AS28657 changed: suporte [at] mdbrasil.com.br 20220806 source: TC last-modified: 2022-08-06T15:04:35Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route6: 2804:40:6000::/36 descr: MD Brasil - Tecnologia da Informa\xe7\xe3o Ltda origin: AS28657 notify: suporte [at] mdbrasil.com.br mnt-by: MAINT-AS28657 changed: suporte [at] mdbrasil.com.br 20220806 source: TC last-modified: 2022-08-06T15:04:35Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route6: 2804:40:7000::/36 descr: MD Brasil - Tecnologia da Informa\xe7\xe3o Ltda origin: AS28657 notify: suporte [at] mdbrasil.com.br mnt-by: MAINT-AS28657 changed: suporte [at] mdbrasil.com.br 20220806 source: TC last-modified: 2022-08-06T15:04:35Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route6: 2804:40:8000::/36 descr: MD Brasil - Tecnologia da Informa\xe7\xe3o Ltda origin: AS28657 notify: suporte [at] mdbrasil.com.br mnt-by: MAINT-AS28657 changed: suporte [at] mdbrasil.com.br 20220806 source: TC last-modified: 2022-08-06T15:04:35Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route6: 2804:40:9000::/36 descr: MD Brasil - Tecnologia da Informa\xe7\xe3o Ltda origin: AS28657 notify: suporte [at] mdbrasil.com.br mnt-by: MAINT-AS28657 changed: suporte [at] mdbrasil.com.br 20220806 source: TC last-modified: 2022-08-06T15:04:35Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route6: 2804:40:a000::/36 descr: MD Brasil - Tecnologia da Informa\xe7\xe3o Ltda origin: AS28657 notify: suporte [at] mdbrasil.com.br mnt-by: MAINT-AS28657 changed: suporte [at] mdbrasil.com.br 20220806 source: TC last-modified: 2022-08-06T15:04:35Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route6: 2804:40:b000::/36 descr: MD Brasil - Tecnologia da Informa\xe7\xe3o Ltda origin: AS28657 notify: suporte [at] mdbrasil.com.br mnt-by: MAINT-AS28657 changed: suporte [at] mdbrasil.com.br 20220806 source: TC last-modified: 2022-08-06T15:04:35Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route6: 2804:40:c000::/36 descr: MD Brasil - Tecnologia da Informa\xe7\xe3o Ltda origin: AS28657 notify: suporte [at] mdbrasil.com.br mnt-by: MAINT-AS28657 changed: suporte [at] mdbrasil.com.br 20220806 source: TC last-modified: 2022-08-06T15:04:35Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route6: 2804:40:d000::/36 descr: MD Brasil - Tecnologia da Informa\xe7\xe3o Ltda origin: AS28657 notify: suporte [at] mdbrasil.com.br mnt-by: MAINT-AS28657 changed: suporte [at] mdbrasil.com.br 20220806 source: TC last-modified: 2022-08-06T15:04:35Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route6: 2804:40:e000::/36 descr: MD Brasil - Tecnologia da Informa\xe7\xe3o Ltda origin: AS28657 notify: suporte [at] mdbrasil.com.br mnt-by: MAINT-AS28657 changed: suporte [at] mdbrasil.com.br 20220806 source: TC last-modified: 2022-08-06T15:04:35Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route6: 2804:40:f000::/36 descr: MD Brasil - Tecnologia da Informa\xe7\xe3o Ltda origin: AS28657 notify: suporte [at] mdbrasil.com.br mnt-by: MAINT-AS28657 changed: suporte [at] mdbrasil.com.br 20220806 source: TC last-modified: 2022-08-06T15:04:35Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source