These entries are queried from radb.net using whois, you can try my project getting these.
:AS-DFR as-set: AS-DFR descr: AS-Set IT-Service David Froehlich (it-df.net) remarks: remarks: * David Froehlich members: AS39083 members: AS203638 remarks: remarks: * BELL Computer-Netzwerke members: AS50801 remarks: admin-c: DUMY-RIPE tech-c: DUMY-RIPE mnt-by: DFR-MNT created: 2018-09-13T09:58:59Z last-modified: 2022-06-11T22:21:51Z 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: ****************************