These entries are queried from radb.net using whois, you can try my project getting these.
:AS40599 route: 204.19.223.0/24 descr: Proxy Registered on Behalf of AS40599 origin: AS40599 mnt-by: MAINT-AS30517 changed: rbarber [at] everstream.net 20220324 source: RADB last-modified: 2023-11-13T16:10:10Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source