These entries are queried from radb.net using whois, you can try my project getting these.
:AS-velcom as-set: AS-VELCOM descr: Proxy Set for Velcom members: AS30407 tech-c: RAS-LEVEL3 mnt-by: BANDCON-MNT changed: neteng [at] bandcon.com 20100910 source: LEVEL3 as-set: AS-velcom members: AS42772 members: AS39426 members: AS58076 members: AS61277 members: AS49682 members: AS62170 members: AS202387 members: AS212172 members: AS61235 members: AS49526 members: AS49682 members: AS212619 members: AS48107 members: AS210871 members: AS211976 members: AS50492 members: AS-AT members: AS-VDCBY members: as-AICHYNA members: AS-MEGADATA tech-c: DUMY-RIPE admin-c: DUMY-RIPE mnt-by: MNT-MDC created: 2017-07-25T14:02:19Z last-modified: 2023-12-12T13:20:39Z 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: ****************************