These entries are queried from radb.net using whois, you can try my project getting these.
:AS61577 route: 143.137.28.0/22 origin: AS61577 remarks: Auto-created by TC IRR from NIC.br and RIPE RIS data notify: fabio.araujo [at] amazontel.com.br mnt-by: MAINT-AS61577 source: TC last-modified: 2021-06-10T13:51:33Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 143.137.28.0/22 descr: G8 Customer Proxy Route origin: AS61577 mnt-by: MAINT-AS28329 changed: no-reply [at] g8.net.br 20230828 source: RADB last-modified: 2023-11-13T16:18:18Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 143.137.28.0/23 descr: CLARO S.A. Customer origin: AS61577 remarks: Proxy Object notify: irradmin [at] embratel.net.br mnt-by: MAINT-AS4230 changed: irradmin [at] embratel.net.br 20190927 source: RADB last-modified: 2023-11-13T15:57:48Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 143.137.28.0/24 descr: CLIENTE_MOB_AMAZONTEL TELECOMUNICACOES LTDA origin: AS61577 mnt-by: MAINT-AS28598 changed: mauricio.maehara [at] mobtelecom.com.br 20180504 #23:49:57Z source: RADB last-modified: 2023-11-13T16:12:06Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 143.137.29.0/24 descr: CLIENTE_MOB_AMAZONTEL TELECOMUNICACOES LTDA origin: AS61577 mnt-by: MAINT-AS28598 changed: mauricio.maehara [at] mobtelecom.com.br 20180504 #23:49:57Z source: RADB last-modified: 2023-11-13T16:12:06Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 143.137.30.0/23 descr: CLARO S.A. Customer origin: AS61577 remarks: Proxy Object notify: irradmin [at] embratel.net.br mnt-by: MAINT-AS4230 changed: irradmin [at] embratel.net.br 20190703 source: RADB last-modified: 2023-11-13T15:56:41Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 143.137.30.0/24 descr: CLIENTE_MOB_AMAZONTEL TELECOMUNICACOES LTDA origin: AS61577 mnt-by: MAINT-AS28598 changed: mauricio.maehara [at] mobtelecom.com.br 20180504 #23:49:57Z source: RADB last-modified: 2023-11-13T16:12:06Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 143.137.31.0/24 descr: CLIENTE_MOB_AMAZONTEL TELECOMUNICACOES LTDA origin: AS61577 mnt-by: MAINT-AS28598 changed: mauricio.maehara [at] mobtelecom.com.br 20180504 #23:49:57Z source: RADB last-modified: 2023-11-13T16:12:07Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route6: 2804:29b0::/32 origin: AS61577 remarks: Auto-created by TC IRR from NIC.br and RIPE RIS data notify: fabio.araujo [at] amazontel.com.br mnt-by: MAINT-AS61577 source: TC last-modified: 2021-06-10T13:51:33Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route6: 2804:29b0::/32 descr: G8 Customer Proxy Route origin: AS61577 mnt-by: MAINT-AS28329 changed: no-reply [at] g8.net.br 20230828 source: RADB last-modified: 2023-11-13T16:18:18Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route6: 2804:29b0::/35 descr: CLARO S.A. Customer origin: AS61577 remarks: Proxy Object notify: irradmin [at] embratel.net.br mnt-by: MAINT-AS4230 changed: irradmin [at] embratel.net.br 20210128 source: RADB last-modified: 2023-11-13T16:03:31Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route6: 2804:29b0::/36 descr: CLARO S.A. Customer origin: AS61577 remarks: Proxy Object notify: irradmin [at] embratel.net.br mnt-by: MAINT-AS4230 changed: irradmin [at] embratel.net.br 20191203 source: RADB last-modified: 2023-11-13T15:59:14Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route6: 2804:29b0::/38 descr: CLARO S.A. Customer origin: AS61577 remarks: Proxy Object notify: irradmin [at] embratel.net.br mnt-by: MAINT-AS4230 changed: irradmin [at] embratel.net.br 20210406 source: RADB last-modified: 2023-11-13T16:05:28Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route6: 2804:29b0:c00::/38 descr: CLARO S.A. Customer origin: AS61577 remarks: Proxy Object notify: irradmin [at] embratel.net.br mnt-by: MAINT-AS4230 changed: irradmin [at] embratel.net.br 20210406 source: RADB last-modified: 2023-11-13T16:05:28Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route6: 2804:29b0:2000::/35 descr: CLARO S.A. Customer origin: AS61577 remarks: Proxy Object notify: irradmin [at] embratel.net.br mnt-by: MAINT-AS4230 changed: irradmin [at] embratel.net.br 20210128 source: RADB last-modified: 2023-11-13T16:03:31Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source