These entries are queried from radb.net using whois, you can try my project getting these.
:AS-MBNET as-set: AS-MBNET descr: MB-NET IP Network org: ORG-MB292-RIPE members: AS31184 tech-c: DUMY-RIPE admin-c: DUMY-RIPE notify: guardian [at] mb-net.net mnt-by: MBNET-MNT created: 2006-05-24T15:27:27Z last-modified: 2022-12-16T07:45:28Z 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: ****************************