These entries are queried from radb.net using whois, you can try my project getting these.
:AS271217 route: 143.0.240.0/22 origin: AS271217 descr: NB TELECOM proxy-registered route object for customer AS 271217 mnt-by: MAINT-AS28338 changed: noc [at] nbtelecom.com.br 20200826 #19:09:31Z source: RADB last-modified: 2023-11-13T16:01:35Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 143.0.242.0/24 descr: CLARO S.A. Customer origin: AS271217 remarks: Proxy Object notify: irradmin [at] embratel.net.br mnt-by: MAINT-AS4230 changed: irradmin [at] embratel.net.br 20230315 source: RADB last-modified: 2023-11-13T16:15:24Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route6: 2804:780c::/32 descr: WIX origin: AS271217 mnt-by: MAINT-AS53013 changed: danielantonio [at] wixnet.com.br 20221106 source: RADB last-modified: 2023-11-13T16:13:06Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source