These entries are queried from radb.net using whois, you can try my project getting these.
:AS400404 route: 66.71.208.0/21 origin: AS400404 descr: Proxy route for as400404 mnt-by: MAINT-AS22631 changed: tchesna [at] surfbroadband.com 20240316 # 0112Z source: RADB last-modified: 2024-03-16T01:12:59Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 96.45.144.0/20 origin: AS400404 descr: Proxy object to facilitate route distribution member-of: RS-MTMAccess mnt-by: MAINT-AS25645 changed: keith.perkins [at] momentumtelecom.com 20221003 #13:26:09Z source: RADB last-modified: 2023-11-13T16:12:32Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 96.45.144.0/20 origin: AS400404 descr: Steuben County REMC Broadband 1212 S Wayne St PO Box 359 Angola IN 46703 United States admin-c: SHORT166-ARIN tech-c: SHORT166-ARIN mnt-by: MNT-SCREMC created: 2023-10-10T20:06:33Z last-modified: 2023-10-10T20:06:33Z source: ARIN rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source