These entries are queried from radb.net using whois, you can try my project getting these.
:AS270458 route: 200.6.88.0/22 origin: AS270458 descr: PIERNET PB SERVICOS DE TELECOMUNICACOES LTDA mnt-by: MAINT-AS53087 changed: noc [at] tely.com.br 20200423 #13:09:48Z source: RADB last-modified: 2023-11-13T16:00:33Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 200.6.88.0/23 origin: AS270458 descr: AS270458 mnt-by: MAINT-AS52965 changed: rodrigo [at] 1telecom.com.br 20200612 #19:23:53Z source: RADB last-modified: 2023-11-13T16:00:59Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 200.6.88.0/24 descr: CLARO S.A. Customer origin: AS270458 remarks: Proxy Object notify: irradmin [at] embratel.net.br mnt-by: MAINT-AS4230 changed: irradmin [at] embratel.net.br 20210824 source: RADB last-modified: 2023-11-13T16:08:08Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 200.6.89.0/24 descr: CLARO S.A. Customer origin: AS270458 remarks: Proxy Object notify: irradmin [at] embratel.net.br mnt-by: MAINT-AS4230 changed: irradmin [at] embratel.net.br 20210824 source: RADB last-modified: 2023-11-13T16:08:08Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 200.6.90.0/23 origin: AS270458 descr: AS270458 mnt-by: MAINT-AS52965 changed: rodrigo [at] 1telecom.com.br 20200612 #19:24:19Z source: RADB last-modified: 2023-11-13T16:00:59Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route6: 2804:6c4c::/32 origin: AS270458 descr: PIERNET PB SERVICOS DE TELECOMUNICACOES LTDA mnt-by: MAINT-AS53087 changed: noc [at] tely.com.br 20200423 #13:10:44Z source: RADB last-modified: 2023-11-13T16:00:33Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route6: 2804:6c4c::/33 origin: AS270458 descr: AS270458 mnt-by: MAINT-AS52965 changed: rodrigo [at] 1telecom.com.br 20200612 #19:29:46Z source: RADB last-modified: 2023-11-13T16:00:59Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route6: 2804:6c4c:8000::/33 descr: CLARO S.A. Customer origin: AS270458 remarks: Proxy Object notify: irradmin [at] embratel.net.br mnt-by: MAINT-AS4230 changed: irradmin [at] embratel.net.br 20200702 source: RADB last-modified: 2023-11-13T16:01:10Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source