These entries are queried from radb.net using whois, you can try my project getting these.
:AS270761 route: 201.71.52.0/22 origin: AS270761 descr: Proxy Object : Cliente ITS_Transito IP: JOABE BOA SORTE ALVES BRAZIL mnt-by: MAINT-AS28186 changed: alexandre [at] itsbrasil.net 20200529 #13:51:15Z source: RADB last-modified: 2023-11-13T16:00:42Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route6: 2804:7100::/32 origin: AS270761 descr: Proxy Object : Cliente ITS_Transito IP: JOABE BOA SORTE ALVES BRAZIL mnt-by: MAINT-AS28186 changed: alexandre [at] itsbrasil.net 20200529 #13:51:47Z source: RADB last-modified: 2023-11-13T16:00:42Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source