These entries are queried from radb.net using whois, you can try my project getting these.
:AS264052 route: 143.137.116.0/22 descr: MOB CUSTOMER AS264052 origin: AS264052 mnt-by: MAINT-AS28598 changed: fabricio.feijo [at] mobtelecom.com.br 20180504 source: RADB last-modified: 2023-11-13T16:12:07Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 143.137.119.0/24 descr: CLARO S.A. Customer origin: AS264052 remarks: Proxy Object notify: irradmin [at] embratel.net.br mnt-by: MAINT-AS4230 changed: irradmin [at] embratel.net.br 20201013 source: RADB last-modified: 2023-11-13T16:02:25Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route6: 2804:2a08::/32 descr: CUSTOMER NOBRE TELECOM SOLUCOES EM TECNOLOGIA LTDA - ME origin: AS264052 mnt-by: MAINT-AS28598 changed: cassio.passos [at] mobtelecom.com.br 20200521 #13:37:29Z source: RADB last-modified: 2023-11-13T16:12:07Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route6: 2804:4684::/32 descr: This is a Commcorp Telecom customer proxy route object that was created because no existing route object with the same origin was found. Please contact noc [at] commcorp.com.br if you have any questions regarding this object. origin: AS264052 mnt-by: MAINT-AS14840 changed: gacosta [at] commcorp.com.br 20200721 source: RADB last-modified: 2023-11-13T16:01:15Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source