These entries are queried from radb.net using whois, you can try my project getting these.
:AS198593 route: 91.237.5.0/24 descr: RENDEZ-VOUS ROUTE origin: AS198593 mnt-by: RENDEZVOUS-MNT created: 2012-03-19T12:49:21Z last-modified: 2012-03-19T12:49:21Z 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: valid