These entries are queried from radb.net using whois, you can try my project getting these.
:AS-NASSTAR as-set: AS-NASSTAR descr: Nasstar plc members: AS39179 members: AS61341 members: AS196745 members: AS196875 members: AS60648 tech-c: DUMY-RIPE admin-c: DUMY-RIPE mnt-by: MNT-NASSTAR mnt-by: MNT-MODRUS-TECH created: 2013-02-26T20:55:56Z last-modified: 2019-06-25T15:02:52Z 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: ****************************