These entries are queried from radb.net using whois, you can try my project getting these.
:AS266050 route6: 2804:39c8::/32 descr: TCHENET TELECOM origin: AS266050 mnt-by: MAINT-AS266050 changed: junior [at] routerx.net.br 20210527 source: ALTDB rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route6: 2804:39c8::/32 origin: AS266050 descr: This is a Antel customer proxy route object. Please contact customer-service [at] antel.net.uy if you have any questions regarding this object. mnt-by: MAINT-AS6057 changed: uai [at] antel.com.uy 20190222 #17:10:05Z source: RADB last-modified: 2023-11-13T15:55:42Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source