These entries are queried from radb.net using whois, you can try my project getting these.
:AS399837 route: 209.239.32.0/19 origin: AS399837 descr: 611 W. Liberty Ave. Lyons GA 30436 United States admin-c: FOUNT57-ARIN tech-c: FOUNT57-ARIN tech-c: VNC2-ARIN mnt-by: MNT-AEMC-5 created: 2021-07-06T18:34:19Z last-modified: 2023-08-17T16:07:08Z source: ARIN rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source