These entries are queried from radb.net using whois, you can try my project getting these.
:AS-DSSV as-set: AS-DSSV descr: DS AS SET members: AS197140 members: AS31326 members: AS-JSC-TELENET members: AS-RC members: AS-MKSNET members: AS41853 members: AS205971 members: AS204952 members: AS210766 members: AS50265 tech-c: DUMY-RIPE admin-c: DUMY-RIPE mnt-by: MNT-DSSV1 created: 2016-01-29T07:49:21Z last-modified: 2022-01-21T14:58:21Z 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: ****************************