These entries are queried from radb.net using whois, you can try my project getting these.
:AS270486 route: 24.152.72.0/22 descr: PROXY FOR OUR COSTUMER CONE origin: AS270486 mnt-by: MAINT-AS263558 changed: jetelecom [at] jetelecom.com.br 20220121 source: ALTDB rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 24.152.72.0/22 descr: G8 Customer Proxy Route origin: AS270486 mnt-by: MAINT-AS28329 changed: no-reply [at] g8.net.br 20200311 source: RADB last-modified: 2023-11-13T16:00:10Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 24.152.72.0/22 origin: AS270486 descr: Proxy Route for Clienteorigin: 262476 mnt-by: MAINT-262476 changed: suporte [at] brcentral.com.br 20200313 source: NTTCOM rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 24.152.72.0/23 descr: CLARO S.A. Customer origin: AS270486 remarks: Proxy Object notify: irradmin [at] embratel.net.br mnt-by: MAINT-AS4230 changed: irradmin [at] embratel.net.br 20201006 source: RADB last-modified: 2023-11-13T16:01:59Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route6: 2804:6cb4::/32 origin: AS270486 descr: CUSTOMER networks informatica eireli-me mnt-by: MAINT-AS28598 changed: jose.tiago [at] mobtelecom.com.br 20200312 #16:53:33Z source: RADB last-modified: 2023-11-13T16:12:06Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route6: 2804:6cb4::/32 descr: PROXY FOR OUR COSTUMER CONE origin: AS270486 mnt-by: MAINT-AS263558 changed: jetelecom [at] jetelecom.com.br 20220121 source: ALTDB rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route6: 2804:6cb4::/32 origin: AS270486 descr: Proxy Route for Clienteorigin: 262476 mnt-by: MAINT-262476 changed: suporte [at] brcentral.com.br 20200313 source: NTTCOM rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source