These entries are queried from radb.net using whois, you can try my project getting these.
:AS-ROOTNETWORKS as-set: AS-ROOTNETWORKS descr: Root Networks, LLC and Downstreams AS-SET members: AS328243 members: AS32708 members: AS-ROOTNETWORKS-DS notify: noc [at] rootnetworks.com mnt-by: lir-uk-loadedge-1-MNT tech-c: DUMY-RIPE admin-c: DUMY-RIPE created: 2021-07-13T15:30:55Z last-modified: 2023-09-19T07:32:02Z 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: ****************************