These entries are queried from radb.net using whois, you can try my project getting these.
:AS139274 route: 139.71.204.0/24 origin: AS139274 descr: proxy object for ARIN-NONAUTH customer objects mnt-by: MAINT-AS8220 changed: mark.borchardt [at] colt.net 20220330 #06:39:07Z source: RADB last-modified: 2023-11-13T16:10:35Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source