These entries are queried from radb.net using whois, you can try my project getting these.
:AS393816 route: 66.219.237.0/24 origin: AS393816 descr: Route Object for 66.219.237.0/24 mnt-by: MAINT-AS13415 changed: tyrel.torgerson [at] veracitynetworks.com 20220608 #17:03:53Z source: RADB last-modified: 2023-11-13T16:11:24Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source