These entries are queried from radb.net using whois, you can try my project getting these.
:AS53117 route6: 2804:ec::/32 descr: Solicitado por nuestro cliente NIB para ED Art. mayo 08 2014 origin: AS53117 mnt-by: MAINT-AS18678 changed: adminred [at] internexa.com 20140509 #22:38:51Z source: RADB last-modified: 2023-11-13T15:46:20Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source