These entries are queried from radb.net using whois, you can try my project getting these.
:AS263353 route: 191.37.64.0/22 descr: PROXY FOR OPENX CUSTOMER origin: AS263353 mnt-by: MAINT-AS263444 notify: registro [at] openx.com.br changed: registro [at] openx.com.br 20210518 remarks: Tue May 18 13:36:22 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 route: 191.37.64.0/24 descr: CLARO S.A. Customer origin: AS263353 remarks: Proxy Object notify: irradmin [at] embratel.net.br mnt-by: MAINT-AS4230 changed: irradmin [at] embratel.net.br 20220127 source: RADB last-modified: 2023-11-13T16:09:09Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 191.37.65.0/24 descr: CLARO S.A. Customer origin: AS263353 remarks: Proxy Object notify: irradmin [at] embratel.net.br mnt-by: MAINT-AS4230 changed: irradmin [at] embratel.net.br 20220127 source: RADB last-modified: 2023-11-13T16:09:09Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 191.37.66.0/24 descr: CLARO S.A. Customer origin: AS263353 remarks: Proxy Object notify: irradmin [at] embratel.net.br mnt-by: MAINT-AS4230 changed: irradmin [at] embratel.net.br 20220127 source: RADB last-modified: 2023-11-13T16:09:09Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 191.37.67.0/24 descr: CLARO S.A. Customer origin: AS263353 remarks: Proxy Object notify: irradmin [at] embratel.net.br mnt-by: MAINT-AS4230 changed: irradmin [at] embratel.net.br 20220127 source: RADB last-modified: 2023-11-13T16:09:09Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route6: 2804:14d4::/32 descr: PROXY FOR OPENX CUSTOMER origin: AS263353 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