These entries are queried from radb.net using whois, you can try my project getting these.
:AS-MULTINET24 as-set: AS-MULTINET24 descr: Multinet 24 Sp. z o.o. members: AS197099 members: AS198945 members: AS196899 members: AS196969 members: AS199585 members: AS50450 members: AS205594 members: AS205748 members: AS205136 members: AS-IDC-IN-IX members: AS198401 admin-c: DUMY-RIPE tech-c: DUMY-RIPE mnt-by: MNT-MULTINET24 created: 2010-11-16T14:23:55Z last-modified: 2021-08-24T09:36:15Z 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: ****************************