These entries are queried from radb.net using whois, you can try my project getting these.
:AS328795 route: 102.220.252.0/22 origin: AS328795 descr: IPv4 Aggregate mnt-by: AL13-MNT changed: *** [at] networkstack.co.za 20210217 source: AFRINIC rpki-ov-state: valid route: 102.220.252.0/24 origin: AS328795 descr: KZN Infrastructure mnt-by: AL13-MNT changed: *** [at] networkstack.co.za 20211110 source: AFRINIC rpki-ov-state: valid route: 102.220.253.0/24 origin: AS328795 descr: KZN South Coast Customers mnt-by: AL13-MNT changed: *** [at] networkstack.co.za 20211110 source: AFRINIC rpki-ov-state: valid route: 102.220.255.0/24 origin: AS328795 descr: JNB Customers mnt-by: AL13-MNT changed: *** [at] networkstack.co.za 20211110 source: AFRINIC rpki-ov-state: valid route6: 2c0f:3400::/32 origin: AS328795 descr: IPV6 Aggregate mnt-by: AL13-MNT changed: *** [at] networkstack.co.za 20210217 source: AFRINIC rpki-ov-state: valid