These entries are queried from radb.net using whois, you can try my project getting these.
:AS56652 route: 31.41.48.0/21 descr: BRDNET Route origin: AS56652 mnt-by: BRDNET-MNT created: 2011-04-20T09:48:28Z last-modified: 2012-12-04T10:20:37Z 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