These entries are queried from radb.net using whois, you can try my project getting these.
:AS37366 route: 196.43.223.0/24 descr: Banco Nacional de Angola (BNA) origin: AS37366 mnt-by: BNA-ANGOLA-MNT created: 2011-08-26T09:19:14Z last-modified: 2018-09-04T16:57:13Z source: RIPE-NONAUTH remarks: **************************** remarks: * THIS OBJECT IS MODIFIED remarks: * Please note that all data that is generally regarded as personal remarks: * data has been removed from this object. remarks: * To view the original object, please query the RIPE Database at: remarks: * http://www.ripe.net/whois remarks: **************************** rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 196.43.223.0/24 descr: BNA Route Object origin: AS37366 mnt-by: BNA-MNT changed: *** [at] bna.ao 20200721 source: AFRINIC rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source