These entries are queried from radb.net using whois, you can try my project getting these.
:AS328843 route: 102.220.48.0/22 origin: AS328843 descr: South Coast Fibre Aggregate mnt-by: SCFL1-MNT changed: *** [at] networkstack.co.za 20210429 source: AFRINIC rpki-ov-state: valid route: 102.220.48.0/24 origin: AS328843 descr: South Coast Fibre Broadband users mnt-by: SCFL1-MNT changed: *** [at] networkstack.co.za 20211207 source: AFRINIC rpki-ov-state: valid route: 102.220.49.0/24 origin: AS328843 descr: South Coast Fibre Broadband users mnt-by: SCFL1-MNT changed: *** [at] networkstack.co.za 20211207 source: AFRINIC rpki-ov-state: valid route: 102.220.50.0/24 origin: AS328843 descr: South Coast Fibre Broadband users mnt-by: SCFL1-MNT changed: *** [at] networkstack.co.za 20211207 source: AFRINIC rpki-ov-state: valid route: 102.220.51.0/24 origin: AS328843 descr: South Coast Fibre Broadband users mnt-by: SCFL1-MNT changed: *** [at] networkstack.co.za 20211207 source: AFRINIC rpki-ov-state: valid route6: 2c0f:5e00::/32 origin: AS328843 descr: South Coast Fibre Aggregate IPv6 mnt-by: SCFL1-MNT changed: *** [at] networkstack.co.za 20210510 source: AFRINIC rpki-ov-state: valid