These entries are queried from radb.net using whois, you can try my project getting these.
:AS-VADAVO as-set: AS-VADAVO descr: VADAVO-AS AS-SET remarks: remarks: =================== VADAVO BACKBONE =================== members: AS5505 remarks: remarks: tech-c: DUMY-RIPE admin-c: DUMY-RIPE remarks: mnt-by: es-vadavo-1-mnt created: 2016-02-24T22:21:34Z last-modified: 2018-01-12T07:41:29Z 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: ****************************