These entries are queried from radb.net using whois, you can try my project getting these.
:AS-DN-VNET as-set: AS-DN-VNET descr: Vnet customers AS'es members: AS34786 members: AS-PLANET1 tech-c: DUMY-RIPE admin-c: DUMY-RIPE mnt-by: vnet-dn-mnt created: 2008-09-11T11:36:53Z last-modified: 2021-12-10T16:56:12Z 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: ****************************