These entries are queried from radb.net using whois, you can try my project getting these.
:AS263902 route: 138.204.52.0/22 descr: Jos\xe9 Rildo Da Silva & Cia Ltda origin: AS263902 notify: db-admin [at] bgp.net.br mnt-by: MAINT-AS263902 changed: db-admin [at] bgp.net.br 20200427 source: TC last-modified: 2021-05-05T02:07:41Z rpki-ov-state: valid route: 138.204.52.0/22 descr: CLARO S.A. Customer origin: AS263902 remarks: Proxy Object notify: irradmin [at] embratel.net.br mnt-by: MAINT-AS4230 changed: irradmin [at] embratel.net.br 20190530 source: RADB last-modified: 2023-11-13T15:56:26Z rpki-ov-state: valid route: 138.204.52.0/24 descr: CLARO S.A. Customer origin: AS263902 remarks: Proxy Object notify: irradmin [at] embratel.net.br mnt-by: MAINT-AS4230 changed: irradmin [at] embratel.net.br 20200817 source: RADB last-modified: 2023-11-13T16:01:33Z rpki-ov-state: valid route: 138.204.53.0/24 descr: CLARO S.A. Customer origin: AS263902 remarks: Proxy Object notify: irradmin [at] embratel.net.br mnt-by: MAINT-AS4230 changed: irradmin [at] embratel.net.br 20190325 source: RADB last-modified: 2023-11-13T15:55:45Z rpki-ov-state: valid route: 138.204.54.0/24 descr: CLARO S.A. Customer origin: AS263902 remarks: Proxy Object notify: irradmin [at] embratel.net.br mnt-by: MAINT-AS4230 changed: irradmin [at] embratel.net.br 20190401 source: RADB last-modified: 2023-11-13T15:55:46Z rpki-ov-state: valid route: 138.204.55.0/24 descr: CLARO S.A. Customer origin: AS263902 remarks: Proxy Object notify: irradmin [at] embratel.net.br mnt-by: MAINT-AS4230 changed: irradmin [at] embratel.net.br 20190401 source: RADB last-modified: 2023-11-13T15:55:46Z rpki-ov-state: valid route6: 2804:2774::/32 descr: PROXY FOR OPENX CUSTOMER origin: AS263902 mnt-by: MAINT-AS263444 notify: registro [at] openx.com.br changed: registro [at] openx.com.br 20210518 remarks: Tue May 18 14:20:37 2021 source: RADB last-modified: 2023-11-13T16:05:44Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source