These entries are queried from radb.net using whois, you can try my project getting these.
:AS393674 route: 204.88.0.0/20 origin: AS393674 descr: 600 MARY EVANSVILLE IN 47747 United States admin-c: WILSO142-ARIN tech-c: WILSO142-ARIN mnt-by: MNT-DEACO-6 created: 2023-02-24T16:08:27Z last-modified: 2023-02-24T16:08:27Z source: ARIN rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source