These entries are queried from radb.net using whois, you can try my project getting these.
:AS-GTK as-set: AS-GTK descr: AS Macro for GTK remarks: ------------------------------------------- remarks: NODEX remarks: ------------------------------------------- members: AS-NODEX remarks: ------------------------------------------- tech-c: DUMY-RIPE admin-c: DUMY-RIPE mnt-by: GTK-MNT mnt-by: NODEX-NCC created: 2009-10-06T09:26:20Z last-modified: 2018-11-28T09:35:40Z 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: ****************************