These entries are queried from radb.net using whois, you can try my project getting these.
:AS393853 route: 192.206.36.0/23 origin: AS393853 descr: ICS-ARIN IPv4 16256 Crego Rd. DeKalb IL 60115 United States member-of: RS-INTELLIGENTCOMPUTINGSOLUTIONS admin-c: HAMME2-ARIN tech-c: HAMME2-ARIN mnt-by: MNT-ICS-250 created: 2021-12-06T15:00:50Z last-modified: 2021-12-06T15:00:50Z source: ARIN rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source