These entries are queried from radb.net using whois, you can try my project getting these.
:AS54245 route: 50.30.23.0/24 origin: AS54245 descr: Proxy route for AS54245 mnt-by: MAINT-AS10835 changed: jeremy [at] vcn.com 20200316 #20:08:10Z source: RADB last-modified: 2023-11-13T16:00:11Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source