These entries are queried from radb.net using whois, you can try my project getting these.
:AS43990 route: 91.198.239.0/24 descr: NET-Europ-Assistance origin: AS43990 mnt-by: AS15525-MNT created: 2007-11-07T08:32:21Z last-modified: 2017-11-30T11:15:19Z source: RIPE remarks: **************************** remarks: * THIS OBJECT IS MODIFIED remarks: * Please note that all data that is generally regarded as personal remarks: * data has been removed from this object. remarks: * To view the original object, please query the RIPE Database at: remarks: * http://www.ripe.net/whois remarks: **************************** rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source