These entries are queried from radb.net using whois, you can try my project getting these.
:AS270337 route: 190.83.48.0/22 descr: KT ENGENHARIA E COMPONENTES ELETRONICOS LTDA / Ultralink origin: AS270337 notify: vagner [at] innetsolutions.com.br mnt-by: MAINT-AS270337 changed: vagner [at] innetsolutions.com.br 20230120 source: TC last-modified: 2023-01-20T16:00:15Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 190.83.48.0/22 origin: AS270337 descr: Objeto de rota AS270337 admin-c: Anderson Heringer tech-c: Vitor Sa notify: engenharia [at] k2telecom.com.br mnt-by: MAINT-AS53181 changed: engenharia [at] k2telecom.com.br 20200218 #18:21:30Z source: RADB last-modified: 2023-11-13T15:59:45Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 190.83.48.0/23 descr: CLARO S.A. Customer origin: AS270337 remarks: Proxy Object notify: irradmin [at] embratel.net.br mnt-by: MAINT-AS4230 changed: irradmin [at] embratel.net.br 20200701 source: RADB last-modified: 2023-11-13T16:01:10Z rpki-ov-state: valid route: 190.83.48.0/23 descr: KT ENGENHARIA E COMPONENTES ELETRONICOS LTDA / Ultralink origin: AS270337 notify: vagner [at] innetsolutions.com.br mnt-by: MAINT-AS270337 changed: vagner [at] innetsolutions.com.br 20230120 source: TC last-modified: 2023-01-20T16:00:15Z rpki-ov-state: valid route: 190.83.48.0/24 descr: CLARO S.A. Customer origin: AS270337 remarks: Proxy Object notify: irradmin [at] embratel.net.br mnt-by: MAINT-AS4230 changed: irradmin [at] embratel.net.br 20200901 source: RADB last-modified: 2023-11-13T16:01:35Z rpki-ov-state: valid route: 190.83.48.0/24 descr: KT ENGENHARIA E COMPONENTES ELETRONICOS LTDA / Ultralink origin: AS270337 notify: vagner [at] innetsolutions.com.br mnt-by: MAINT-AS270337 changed: vagner [at] innetsolutions.com.br 20230120 source: TC last-modified: 2023-01-20T16:00:15Z rpki-ov-state: valid route: 190.83.49.0/24 descr: CLARO S.A. Customer origin: AS270337 remarks: Proxy Object notify: irradmin [at] embratel.net.br mnt-by: MAINT-AS4230 changed: irradmin [at] embratel.net.br 20200901 source: RADB last-modified: 2023-11-13T16:01:35Z rpki-ov-state: valid route: 190.83.49.0/24 descr: KT ENGENHARIA E COMPONENTES ELETRONICOS LTDA / Ultralink origin: AS270337 notify: vagner [at] innetsolutions.com.br mnt-by: MAINT-AS270337 changed: vagner [at] innetsolutions.com.br 20230120 source: TC last-modified: 2023-01-20T16:00:15Z rpki-ov-state: valid route: 190.83.50.0/23 descr: CLARO S.A. Customer origin: AS270337 remarks: Proxy Object notify: irradmin [at] embratel.net.br mnt-by: MAINT-AS4230 changed: irradmin [at] embratel.net.br 20200731 source: RADB last-modified: 2023-11-13T16:01:17Z rpki-ov-state: valid route: 190.83.50.0/23 descr: KT ENGENHARIA E COMPONENTES ELETRONICOS LTDA / Ultralink origin: AS270337 notify: vagner [at] innetsolutions.com.br mnt-by: MAINT-AS270337 changed: vagner [at] innetsolutions.com.br 20230120 source: TC last-modified: 2023-01-20T16:00:15Z rpki-ov-state: valid route: 190.83.50.0/24 descr: KT ENGENHARIA E COMPONENTES ELETRONICOS LTDA / Ultralink origin: AS270337 notify: vagner [at] innetsolutions.com.br mnt-by: MAINT-AS270337 changed: vagner [at] innetsolutions.com.br 20230120 source: TC last-modified: 2023-01-20T16:00:15Z rpki-ov-state: valid route: 190.83.50.0/24 descr: CLARO S.A. Customer origin: AS270337 remarks: Proxy Object notify: irradmin [at] embratel.net.br mnt-by: MAINT-AS4230 changed: irradmin [at] embratel.net.br 20200806 source: RADB last-modified: 2023-11-13T16:01:18Z rpki-ov-state: valid route: 190.83.51.0/24 descr: CLARO S.A. Customer origin: AS270337 remarks: Proxy Object notify: irradmin [at] embratel.net.br mnt-by: MAINT-AS4230 changed: irradmin [at] embratel.net.br 20200807 source: RADB last-modified: 2023-11-13T16:01:18Z rpki-ov-state: valid route: 190.83.51.0/24 descr: KT ENGENHARIA E COMPONENTES ELETRONICOS LTDA / Ultralink origin: AS270337 notify: vagner [at] innetsolutions.com.br mnt-by: MAINT-AS270337 changed: vagner [at] innetsolutions.com.br 20230120 source: TC last-modified: 2023-01-20T16:00:15Z rpki-ov-state: valid route6: 2804:6a74::/32 origin: AS270337 descr: Objeto de rota AS270337 admin-c: Anderson Heringer tech-c: Vitor Sa notify: engenharia [at] k2telecom.com.br mnt-by: MAINT-AS53181 changed: engenharia [at] k2telecom.com.br 20200218 #18:22:15Z source: RADB last-modified: 2023-11-13T15:59:45Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route6: 2804:6a74::/33 descr: CLARO S.A. Customer origin: AS270337 remarks: Proxy Object notify: irradmin [at] embratel.net.br mnt-by: MAINT-AS4230 changed: irradmin [at] embratel.net.br 20200701 source: RADB last-modified: 2023-11-13T16:01:10Z rpki-ov-state: valid route6: 2804:6a74:8000::/33 descr: CLARO S.A. Customer origin: AS270337 remarks: Proxy Object notify: irradmin [at] embratel.net.br mnt-by: MAINT-AS4230 changed: irradmin [at] embratel.net.br 20200731 source: RADB last-modified: 2023-11-13T16:01:17Z rpki-ov-state: valid