These entries are queried from radb.net using whois, you can try my project getting these.
:AS399019 route: 141.193.139.0/24 origin: AS399019 descr: Perfecta LLC admin-c: IT333-ARIN tech-c: IT333-ARIN mnt-by: MNT-PFL-129 created: 2021-04-15T18:56:34Z last-modified: 2021-04-15T18:56:34Z source: ARIN rpki-ov-state: valid