These entries are queried from radb.net using whois, you can try my project getting these.
:AS36990 route: 41.223.196.0/22 descr: Route Object origin: AS36990 mnt-by: ALKAN-MNT changed: *** [at] alkancit.com 20181029 source: AFRINIC rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source