These entries are queried from radb.net using whois, you can try my project getting these.
:AS60222 route: 5.255.76.0/24 descr: Wholesale Dutch Telecom B.V. origin: AS60222 mnt-by: serverius-mnt created: 2015-07-02T22:29:39Z last-modified: 2015-07-02T22:29:39Z 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