These entries are queried from radb.net using whois, you can try my project getting these.
:AS28351 route: 189.51.176.0/20 descr: CLARO S.A. Customer origin: AS28351 remarks: Proxy Object notify: irradmin [at] embratel.net.br mnt-by: MAINT-AS4230 changed: irradmin [at] embratel.net.br 20180831 source: RADB last-modified: 2023-11-13T15:54:35Z rpki-ov-state: valid