These entries are queried from radb.net using whois, you can try my project getting these.
:AS9515 route: 185.146.224.0/22 descr: Mattsson, Inc. origin: AS9515 mnt-by: MAINT-AS40676 changed: n.abdul [at] psychz.net 20201116 #22:43:21Z source: RADB last-modified: 2023-11-13T16:02:45Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source