These entries are queried from radb.net using whois, you can try my project getting these.
:AS57288 route: 176.97.8.0/21 descr: StampiRoute origin: AS57288 mnt-by: MP2558-MNT created: 2011-09-16T09:08:37Z last-modified: 2011-09-16T09:08:37Z 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 route6: 2001:67c:1138::/48 descr: stampiIPV6 origin: AS57288 mnt-by: MP2558-MNT created: 2013-03-12T10:08:01Z last-modified: 2013-03-12T10:08:01Z 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