These entries are queried from radb.net using whois, you can try my project getting these.
:AS11259 route: 41.74.240.0/20 descr: Route Object origin: AS11259 mnt-by: AFRINIC-RC-AT changed: *** [at] angolatelecom.ao 20161208 source: AFRINIC rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 41.223.156.0/22 descr: Route Object origin: AS11259 mnt-by: AFRINIC-RC-AT changed: *** [at] angolatelecom.ao 20161208 source: AFRINIC rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 66.110.112.0/20 descr: Angola Telecom origin: AS11259 mnt-by: MNT-TCA-51 tech-c: IPADM470-ARIN admin-c: IPADM470-ARIN source: ARIN created: 2021-06-02T15:46:40Z last-modified: 2021-06-02T15:46:40Z rpki-ov-state: valid route: 160.224.0.0/15 descr: China Telecom via EMIX origin: AS11259 notify: noc [at] emix.net.ae mnt-by: MAINT-AS8966 changed: noc [at] emix.net.ae 20181215 source: RADB last-modified: 2023-11-13T15:55:22Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 160.224.0.0/15 descr: Route Object origin: AS11259 mnt-by: AFRINIC-RC-AT changed: *** [at] angolatelecom.ao 20161208 source: AFRINIC rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 197.216.0.0/15 descr: Route Object origin: AS11259 mnt-by: AFRINIC-RC-AT changed: *** [at] angolatelecom.ao 20161208 source: AFRINIC rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route6: 2c0f:faf0::/32 descr: Route Object origin: AS11259 mnt-by: AFRINIC-RC-AT changed: *** [at] angolatelecom.ao 20161209 source: AFRINIC rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source