These entries are queried from radb.net using whois, you can try my project getting these.
:AS-ASTSYSTEMS as-set: AS-Astsystems descr: Ast-Systems Ltd. members: AS47656 members: AS60738 members: AS8305 members: AS-DELTATELEKOM members: AS60771 tech-c: DUMY-RIPE admin-c: DUMY-RIPE mnt-by: MNT-AST-SYSTEMS created: 2011-03-01T14:18:12Z last-modified: 2019-12-23T12:14:29Z 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: ****************************