These entries are queried from radb.net using whois, you can try my project getting these.
:AS328403 route: 102.130.101.0/24 descr: Malawi Revenue Authority origin: AS328403 mnt-by: MRA2-MNT changed: *** [at] mra.mw 20200925 source: AFRINIC rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route6: 2001:43f8:13e0::/48 descr: Malawi Revenue Authority origin: AS328403 mnt-by: MRA2-MNT changed: *** [at] mra.mw 20210924 source: AFRINIC rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source