These entries are queried from radb.net using whois, you can try my project getting these.
:AS270615 route: 200.215.252.0/22 descr: PROXY FOR OUR CUSTOMER CONE origin: AS270615 mnt-by: MAINT-AS61884 changed: noc [at] ollatelecom.com.br 20211014 source: ALTDB rpki-ov-state: valid route: 200.215.252.0/22 descr: G8 Customer Proxy Route origin: AS270615 mnt-by: MAINT-AS28329 changed: no-reply [at] g8.net.br 20200605 source: RADB last-modified: 2023-11-13T16:00:54Z rpki-ov-state: valid route: 200.215.252.0/22 origin: AS270615 remarks: Auto-created by TC IRR from NIC.br and RIPE RIS data notify: gerencia [at] davidyonaguimaraes.com.br mnt-by: MAINT-AS270615 source: TC last-modified: 2021-07-23T00:19:51Z rpki-ov-state: valid route: 200.215.252.0/23 descr: CLARO S.A. Customer origin: AS270615 remarks: Proxy Object notify: irradmin [at] embratel.net.br mnt-by: MAINT-AS4230 changed: irradmin [at] embratel.net.br 20220615 source: RADB last-modified: 2023-11-13T16:11:28Z rpki-ov-state: valid route: 200.215.252.0/24 descr: CLARO S.A. Customer origin: AS270615 remarks: Proxy Object notify: irradmin [at] embratel.net.br mnt-by: MAINT-AS4230 changed: irradmin [at] embratel.net.br 20220615 source: RADB last-modified: 2023-11-13T16:11:28Z rpki-ov-state: valid route: 200.215.253.0/24 descr: CLARO S.A. Customer origin: AS270615 remarks: Proxy Object notify: irradmin [at] embratel.net.br mnt-by: MAINT-AS4230 changed: irradmin [at] embratel.net.br 20220615 source: RADB last-modified: 2023-11-13T16:11:28Z rpki-ov-state: valid route: 200.215.254.0/23 descr: CLARO S.A. Customer origin: AS270615 remarks: Proxy Object notify: irradmin [at] embratel.net.br mnt-by: MAINT-AS4230 changed: irradmin [at] embratel.net.br 20220615 source: RADB last-modified: 2023-11-13T16:11:28Z rpki-ov-state: valid route: 200.215.254.0/24 descr: CLARO S.A. Customer origin: AS270615 remarks: Proxy Object notify: irradmin [at] embratel.net.br mnt-by: MAINT-AS4230 changed: irradmin [at] embratel.net.br 20220615 source: RADB last-modified: 2023-11-13T16:11:28Z rpki-ov-state: valid route: 200.215.255.0/24 descr: CLARO S.A. Customer origin: AS270615 remarks: Proxy Object notify: irradmin [at] embratel.net.br mnt-by: MAINT-AS4230 changed: irradmin [at] embratel.net.br 20220727 source: RADB last-modified: 2023-11-13T16:11:49Z rpki-ov-state: valid route6: 2804:6eb8::/32 descr: PROXY FOR OUR CUSTOMER CONE origin: AS270615 mnt-by: MAINT-AS61884 changed: noc [at] ollatelecom.com.br 20211014 source: ALTDB rpki-ov-state: valid route6: 2804:6eb8::/32 descr: G8 Customer Proxy Route origin: AS270615 mnt-by: MAINT-AS28329 changed: no-reply [at] g8.net.br 20200605 source: RADB last-modified: 2023-11-13T16:00:54Z rpki-ov-state: valid