These entries are queried from radb.net using whois, you can try my project getting these.
:AS-SIBINTEK as-set: AS-SIBINTEK descr: Sibintek downlinks members: AS13165 members: AS34709 members: AS30745 members: AS60057 admin-c: DUMY-RIPE tech-c: DUMY-RIPE notify: noc [at] sibintek.net mnt-by: SIBINTEK-NOC created: 2002-09-12T08:38:13Z last-modified: 2015-08-06T09:50:53Z 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: ****************************