These entries are queried from radb.net using whois, you can try my project getting these.
:AS-ART-INVEST as-set: AS-ART-INVEST descr: Art Invest Ltd. AS-SET members: AS49502 members: AS34771 members: AS47566 members: AS57310 members: AS44988 members: AS57108 members: AS197351 members: AS49348 members: AS47196 members: AS56676 notify: wowa [at] ai33.ru tech-c: DUMY-RIPE admin-c: DUMY-RIPE mnt-by: MNT-ART-INVEST created: 2009-08-24T13:41:17Z last-modified: 2021-08-17T19:13:30Z 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: ****************************