These entries are queried from radb.net using whois, you can try my project getting these.
:AS270304 route: 201.216.124.0/22 descr: PROXY FOR OPENX CUSTOMER origin: AS270304 mnt-by: MAINT-AS263444 notify: registro [at] openx.com.br changed: registro [at] openx.com.br 20210308 remarks: Mon Mar 8 21:18:13 2021 source: RADB last-modified: 2023-11-13T16:05:08Z rpki-ov-state: valid route: 201.216.124.0/23 descr: CLARO S.A. Customer origin: AS270304 remarks: Proxy Object notify: irradmin [at] embratel.net.br mnt-by: MAINT-AS4230 changed: irradmin [at] embratel.net.br 20210701 source: RADB last-modified: 2023-11-13T16:07:49Z rpki-ov-state: valid route: 201.216.124.0/24 descr: CLARO S.A. Customer origin: AS270304 remarks: Proxy Object notify: irradmin [at] embratel.net.br mnt-by: MAINT-AS4230 changed: irradmin [at] embratel.net.br 20220112 source: RADB last-modified: 2023-11-13T16:09:07Z rpki-ov-state: valid route: 201.216.125.0/24 descr: CLARO S.A. Customer origin: AS270304 remarks: Proxy Object notify: irradmin [at] embratel.net.br mnt-by: MAINT-AS4230 changed: irradmin [at] embratel.net.br 20230410 source: RADB last-modified: 2023-11-13T16:15:41Z rpki-ov-state: valid route: 201.216.126.0/23 descr: CLARO S.A. Customer origin: AS270304 remarks: Proxy Object notify: irradmin [at] embratel.net.br mnt-by: MAINT-AS4230 changed: irradmin [at] embratel.net.br 20210715 source: RADB last-modified: 2023-11-13T16:07:53Z rpki-ov-state: valid route6: 2804:69fc::/32 descr: PROXY FOR OPENX CUSTOMER origin: AS270304 mnt-by: MAINT-AS263444 notify: registro [at] openx.com.br changed: registro [at] openx.com.br 20200706 remarks: Mon Jul 6 13:52:10 2020 source: RADB last-modified: 2023-11-13T16:01:11Z rpki-ov-state: valid route6: 2804:69fc:400::/40 descr: CLARO S.A. Customer origin: AS270304 remarks: Proxy Object notify: irradmin [at] embratel.net.br mnt-by: MAINT-AS4230 changed: irradmin [at] embratel.net.br 20220609 source: RADB last-modified: 2023-11-13T16:11:27Z rpki-ov-state: valid