These entries are queried from radb.net using whois, you can try my project getting these.
:AS271613 route: 38.9.54.0/23 descr: PROXY FOR OPENX CUSTOMER origin: AS271613 mnt-by: MAINT-AS263444 notify: registro [at] openx.com.br changed: registro [at] openx.com.br 20230531 remarks: Wed May 31 15:42:22 2023 source: RADB last-modified: 2023-11-13T16:17:25Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 179.63.138.0/23 origin: AS271613 descr: Walber mnt-by: MAINT-AS262973 changed: as [at] mxt.net.br 20231219 # 2031Z source: RADB last-modified: 2024-03-11T19:00:05Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route6: 2804:7e44::/32 origin: AS271613 descr: WALBER DIAS DA SILVA mnt-by: MAINT-AS28260 changed: willian.herdy [at] altarede.com.br 20210204 #23:54:27Z source: RADB last-modified: 2023-11-13T16:05:49Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source