These entries are queried from radb.net using whois, you can try my project getting these.
:AS-NETTRANS as-set: AS-NETTRANS descr: as-set for NetTrans members: AS39660 members: AS44223 members: AS56952 members: AS58186 tech-c: DUMY-RIPE admin-c: DUMY-RIPE notify: rtech [at] volga.ttk.ru mnt-by: VTT-MNT mnt-lower: VTT-MNT created: 2008-11-27T06:28:30Z last-modified: 2021-01-20T06:12:14Z 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: ****************************