These entries are queried from radb.net using whois, you can try my project getting these.
:AS328359 route: 102.135.252.0/22 descr: Route Object origin: AS328359 org: ORG-GL5-AFRINIC mnt-by: GL5-MNT changed: *** [at] gironet.co.za 20180830 source: AFRINIC rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route6: 2c0f:ef98::/32 descr: IPv6 Route Object origin: AS328359 mnt-by: GL5-MNT changed: *** [at] gironet.co.za 20180830 source: AFRINIC rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source