These entries are queried from radb.net using whois, you can try my project getting these.
:AS-21412 as-set: AS-21412 descr: Cgates clients as-set members: AS21412 members: AS15419 members: AS12654 members: AS29625 members: AS44642 tech-c: DUMY-RIPE admin-c: DUMY-RIPE mnt-by: CGATES-LT created: 2014-09-18T08:20:48Z last-modified: 2022-12-05T16:05:30Z 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: ****************************