These entries are queried from radb.net using whois, you can try my project getting these.
:AS-KEY-SYSTEMS as-set: AS-KEY-SYSTEMS descr: Key-Systems GmbH descr: Im Oberen Werk 1 descr: 66386 St. Ingbert descr: Germany tech-c: DUMY-RIPE admin-c: DUMY-RIPE mnt-by: KEY-SYSTEMS-MNT members: AS196763 members: AS199424 members: AS60351 members: AS199330 members: AS60890 members: AS201303 members: AS201304 members: AS203961 members: AS204055 created: 2010-04-16T11:35:39Z last-modified: 2018-12-20T15:35:50Z 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: ****************************