These entries are queried from radb.net using whois, you can try my project getting these.
:AS-VIVA as-set: AS-VIVA descr: AS Announced by VIVA Broadband AS328328 members: AS328328 tech-c: AK79-AFRINIC admin-c: AI58-AFRINIC mnt-by: VBL1-MNT changed: *** [at] viva.co.zm 20181212 source: AFRINIC as-set: AS-VIVA descr: VIVA TELECOM SRL members: AS57136 members: AS-ABSI members: AS43008 members: AS15400 members: AS56615 members: AS51239 members: AS35468 members: AS42731 members: AS42123 members: AS39502 members: AS49646 members: AS13181 members: AS49259 members: AS51835 members: AS62329 members: AS-DIGITALIT tech-c: DUMY-RIPE admin-c: DUMY-RIPE mnt-by: VIVATELECOM-MNT mnt-lower: VIVATELECOM-MNT created: 2011-10-06T07:01:29Z last-modified: 2023-09-28T06:20:02Z 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: ****************************