These entries are queried from radb.net using whois, you can try my project getting these.
:AS58687 route6: 2404:dd00::/32 origin: AS58687 descr: Proxy route remarks: Proxy route mnt-by: MAINT-AS7545 changed: core-neteng-support [at] tpg.com.au 20200428 source: RADB last-modified: 2023-11-13T16:00:36Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source