These entries are queried from radb.net using whois, you can try my project getting these.
:AS-INFIUM as-set: AS-INFIUM descr: Infiumhost AS-SET tech-c: DUMY-RIPE members: AS50297 admin-c: DUMY-RIPE mnt-by: INFIUM-MNT created: 2011-11-08T13:11:00Z last-modified: 2020-04-08T15:49:11Z 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: ****************************