These entries are queried from radb.net using whois, you can try my project getting these.
:AS57544 route: 91.232.178.0/23 descr: Zfort Group Ltd origin: AS57544 mnt-by: ZF-MNT created: 2012-11-07T17:03:17Z last-modified: 2012-11-07T17:03:17Z 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 route: 91.232.178.0/24 descr: Zfort Group Ltd origin: AS57544 mnt-by: ZF-MNT created: 2011-12-15T12:53:14Z last-modified: 2012-11-07T17:04:21Z 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