These entries are queried from radb.net using whois, you can try my project getting these.
:AS54439 route: 8.25.174.0/24 descr: 5407818 origin: AS54439 mnt-by: MS-89 changed: barry.wahrmann [at] level3.com 20120223 source: LEVEL3 rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source