These entries are queried from radb.net using whois, you can try my project getting these.
:AS328874 route: 102.219.136.0/23 origin: AS328874 descr: IPV4 Aggregate mnt-by: GTSL-MNT changed: *** [at] gxq.co.za 20210621 source: AFRINIC rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 102.219.136.0/24 origin: AS328874 descr: Teraco Isando Hosting mnt-by: GTSL-MNT changed: *** [at] gxq.co.za 20210621 source: AFRINIC rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 102.219.137.0/24 origin: AS328874 descr: Samrand Hosting mnt-by: GTSL-MNT changed: *** [at] gxq.co.za 20210621 source: AFRINIC rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source