These entries are queried from radb.net using whois, you can try my project getting these.
:AS272488 route6: 2804:81f4::/32 origin: AS272488 remarks: Auto-created by TC IRR from NIC.br and RIPE RIS data notify: wilsonbarros.procisa [at] gmail.com mnt-by: MAINT-AS272488 source: TC last-modified: 2021-08-04T16:15:42Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route6: 2804:81f4::/32 descr: CLARO S.A. Customer origin: AS272488 remarks: Proxy Object notify: irradmin [at] embratel.net.br mnt-by: MAINT-AS4230 changed: irradmin [at] embratel.net.br 20230628 source: RADB last-modified: 2023-11-13T16:17:32Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source