These entries are queried from radb.net using whois, you can try my project getting these.
:AS399853 route: 216.9.166.0/23 origin: AS399853 descr: AS399853 mnt-by: MAINT-AS15164 changed: sreenivas.gajula [at] upnfiber.com 20211206 #14:17:35Z source: RADB last-modified: 2023-11-13T16:09:02Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 216.9.166.0/24 origin: AS399853 descr: AS399853 mnt-by: MAINT-AS15164 changed: sreenivas.gajula [at] upnfiber.com 20211206 #14:18:20Z source: RADB last-modified: 2023-11-13T16:09:02Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source