These entries are queried from radb.net using whois, you can try my project getting these.
:AS393410 route: 192.30.124.0/24 descr: Davosys International BV origin: AS393410 mnt-by: MNT-DIB-7 changed: noc [at] davosys.net 20171009 source: ARIN rpki-ov-state: valid