These entries are queried from radb.net using whois, you can try my project getting these.
:AS56874 route: 91.228.118.0/24 descr: route object origin: AS56874 mnt-by: ELS-MNT created: 2011-06-03T09:02:03Z last-modified: 2011-06-03T09:02:03Z 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