These entries are queried from radb.net using whois, you can try my project getting these.
:AS-ARCADE as-set: AS-ARCADE descr: AS Set for Arcade Solutions AG tech-c: DUMY-RIPE admin-c: DUMY-RIPE members: AS51873 mnt-by: ARCADE-CH-MNT created: 2011-10-28T14:16:58Z last-modified: 2011-10-28T14:16:58Z 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: ****************************