These entries are queried from radb.net using whois, you can try my project getting these.
:AS393820 route: 192.108.227.0/24 descr: 22nd Agricultural District Association origin: AS393820 mnt-by: MAINT-RR changed: publicipaddressing [at] charter.com 20181017 #22:02:30Z source: RADB last-modified: 2023-11-13T16:15:17Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source