These entries are queried from radb.net using whois, you can try my project getting these.
:AS-ASTRUS as-set: AS-ASTRUS descr: ASTELNET members: AS31368 members: AS40964 tech-c: DUMY-RIPE admin-c: DUMY-RIPE mnt-by: MNT-ASTELNET created: 2013-07-18T05:47:55Z last-modified: 2022-02-21T10:00:07Z 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: ****************************