These entries are queried from radb.net using whois, you can try my project getting these.
:AS328839 route: 102.220.68.0/22 origin: AS328839 descr: WIS 24-7 Aggregate mnt-by: SS6-MNT changed: *** [at] networkstack.co.za 20210423 source: AFRINIC rpki-ov-state: valid route6: 2c0f:4600::/32 origin: AS328839 descr: WIS 24-7 IPv6 Aggregate mnt-by: SS6-MNT changed: *** [at] networkstack.co.za 20210423 source: AFRINIC rpki-ov-state: valid