These entries are queried from radb.net using whois, you can try my project getting these.
:AS270453 route: 200.71.96.0/22 origin: AS270453 descr: 4TELECOM LTDA mnt-by: MAINT-AS28260 changed: roniele.araujo [at] altarede.com.br 20200310 #19:42:17Z source: RADB last-modified: 2023-11-13T16:05:49Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 200.71.96.0/24 descr: CLARO S.A. Customer origin: AS270453 remarks: Proxy Object notify: irradmin [at] embratel.net.br mnt-by: MAINT-AS4230 changed: irradmin [at] embratel.net.br 20210820 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: 200.71.98.0/23 descr: CLARO S.A. Customer origin: AS270453 remarks: Proxy Object notify: irradmin [at] embratel.net.br mnt-by: MAINT-AS4230 changed: irradmin [at] embratel.net.br 20210820 source: RADB last-modified: 2023-11-13T16:08:08Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route6: 2804:6c38::/32 origin: AS270453 descr: 4TELECOM LTDA mnt-by: MAINT-AS28260 changed: roniele.araujo [at] altarede.com.br 20200310 #19:44:55Z source: RADB last-modified: 2023-11-13T16:05:49Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source