These entries are queried from radb.net using whois, you can try my project getting these.
:AS328849 route: 102.219.204.0/23 origin: AS328849 descr: Nexusnet Limited mnt-by: NL13-MNT changed: *** [at] nexusnet.co.tz 20210519 source: AFRINIC rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source