These entries are queried from radb.net using whois, you can try my project getting these.
:AS-UNMANAGED as-set: AS-UNMANAGED members: AS35478 members: AS42397 members: AS47890 members: AS48090 members: AS49468 members: AS62380 members: AS198465 members: AS203523 members: AS204428 members: AS209588 tech-c: DUMY-RIPE admin-c: DUMY-RIPE mnt-by: UNMANAGED mnt-by: ro-btel2-1-mnt created: 2020-07-26T21:18:26Z last-modified: 2024-01-28T08:03:10Z 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: ****************************