These entries are queried from radb.net using whois, you can try my project getting these.
:AS-NSC as-set: AS-NSC descr: Nordiska Servercentralen AB - Autonomous Systems members: AS49515 members: AS8289 remarks: Please see AS49515 for details tech-c: DUMY-RIPE admin-c: DUMY-RIPE mnt-by: MNT-SC created: 2009-06-23T08:07:26Z last-modified: 2020-12-17T16:00:40Z 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: ****************************