These entries are queried from radb.net using whois, you can try my project getting these.
:AS50991 route: 91.216.78.0/24 descr: Urgent Curier S.R.L. origin: AS50991 mnt-by: URGENT-CURIER-MNT created: 2010-05-11T08:32:21Z last-modified: 2010-05-11T08:32:21Z 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: not_found # No ROAs found, or RPKI validation not enabled for source