These entries are queried from radb.net using whois, you can try my project getting these.
:AS46400 route: 192.159.104.0/24 origin: AS46400 descr: Marywood University 2300 Adams Ave Scranton PA 18509 United States member-of: RS-MARYWO,AS46400:RS-ROUTES:AS14877 admin-c: HOFFJ2-ARIN tech-c: HOFFJ2-ARIN mnt-by: MNT-MARYWO created: 2022-03-27T01:31:24Z last-modified: 2023-07-05T18:19:07Z source: ARIN rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source