These entries are queried from radb.net using whois, you can try my project getting these.
:AS328300 route: 102.176.250.0/24 descr: Route Object origin: AS328300 mnt-by: NBOM1-MNT changed: *** [at] natbankmw.com 20181003 source: AFRINIC rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route6: 2001:43f8:1130::/48 descr: Route Object origin: AS328300 mnt-by: NBOM1-MNT changed: *** [at] natbankmw.com 20181003 source: AFRINIC rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source