These entries are queried from radb.net using whois, you can try my project getting these.
:AS37604 route: 41.191.64.0/22 descr: ZEBRANET origin: AS37604 mnt-by: ZEBRANET-MNT changed: *** [at] zebranet.co.bw 20160620 source: AFRINIC rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 197.231.192.0/22 descr: ZEBRANET origin: AS37604 mnt-by: ZEBRANET-MNT changed: *** [at] zebranet.co.bw 20160620 source: AFRINIC rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source