These entries are queried from radb.net using whois, you can try my project getting these.
:AS16865 route: 216.168.220.0/24 descr: Proxy entry Dataframe origin: AS16865 mnt-by: MAINT-CHTR-WD changed: john.abeln [at] chartercom.com 20110421 #13:50:17Z source: RADB last-modified: 2023-11-13T16:11:26Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source