These entries are queried from radb.net using whois, you can try my project getting these.
:AS328194 route: 80.88.3.0/24 descr: CEC Route Object origin: AS328194 mnt-by: COPPERBELT-MNT changed: *** [at] cec.com.zm 20180521 source: AFRINIC rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route6: 2001:43f8:da0::/48 origin: AS328194 descr: Copperbelt-route6 mnt-by: COPPERBELT-MNT changed: *** [at] cec.com.zm 20210729 source: AFRINIC rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source