These entries are queried from radb.net using whois, you can try my project getting these.
:AS-UTEX as-set: AS-UTEX descr: Utex-Telecom LLC remarks: --- utex --- members: AS51904 remarks: --- lcom sles.... --- members: AS-LKOM remarks: --- opex --- members: AS204199 remarks: --- alex-big --- members: AS51538 tech-c: DUMY-RIPE admin-c: DUMY-RIPE mnt-by: MNT-UTEX created: 2014-05-16T09:51:38Z last-modified: 2021-05-31T08:38:55Z 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: ****************************