These entries are queried from radb.net using whois, you can try my project getting these.
:AS270975 route: 186.2.252.0/22 origin: AS270975 remarks: Auto-created by TC IRR from NIC.br and RIPE RIS data notify: edsbiondo [at] hotmail.com mnt-by: MAINT-AS270975 source: TC last-modified: 2021-11-24T22:37:28Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 186.2.252.0/23 descr: CLARO S.A. Customer origin: AS270975 remarks: Proxy Object notify: irradmin [at] embratel.net.br mnt-by: MAINT-AS4230 changed: irradmin [at] embratel.net.br 20220425 source: RADB last-modified: 2023-11-13T16:10:52Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 186.2.254.0/23 descr: CLARO S.A. Customer origin: AS270975 remarks: Proxy Object notify: irradmin [at] embratel.net.br mnt-by: MAINT-AS4230 changed: irradmin [at] embratel.net.br 20220824 source: RADB last-modified: 2023-11-13T16:12:12Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route6: 2804:7458::/32 descr: CLARO S.A. Customer origin: AS270975 remarks: Proxy Object notify: irradmin [at] embratel.net.br mnt-by: MAINT-AS4230 changed: irradmin [at] embratel.net.br 20240103 source: RADB last-modified: 2024-01-03T14:03:48Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route6: 2804:7458::/32 origin: AS270975 remarks: Auto-created by TC IRR from NIC.br and RIPE RIS data notify: edsbiondo [at] hotmail.com mnt-by: MAINT-AS270975 source: TC last-modified: 2021-11-24T22:37:28Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source