These entries are queried from radb.net using whois, you can try my project getting these.
:AS15825 route: 193.194.162.0/23 descr: GDC ROUTE OBJECT origin: AS15825 mnt-by: GDC-MNT changed: *** [at] ghana.com 20160411 source: AFRINIC rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source