These entries are queried from radb.net using whois, you can try my project getting these.
:AS328089 route: 196.61.52.0/22 descr: Kenya Revenue Authority origin: AS328089 org: ORG-KRA1-AFRINIC mnt-by: KRA1-MNT changed: *** [at] kra.go.ke 20171027 source: AFRINIC rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 196.61.52.0/22 origin: AS328089 mnt-by: KRA-RIP-MNT1 created: 2017-10-31T05:32:41Z last-modified: 2018-09-04T19:01:37Z 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: 196.61.52.0/24 descr: Kenya Revenue Authority origin: AS328089 mnt-by: KRA1-MNT changed: *** [at] kra.go.ke 20200720 source: AFRINIC rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 196.61.52.0/24 descr: China Telecom via EMIX origin: AS328089 notify: noc [at] emix.net.ae mnt-by: MAINT-AS8966 changed: noc [at] emix.net.ae 20220829 source: RADB last-modified: 2023-11-13T16:12:25Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 196.61.53.0/24 descr: Kenya Revenue Authority origin: AS328089 mnt-by: KRA1-MNT changed: *** [at] kra.go.ke 20200720 source: AFRINIC rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 196.61.53.0/24 origin: AS328089 descr: JTL Via EMIX mnt-by: MAINT-AS8966 changed: noc [at] emix.net.ae 20200514 #18:00:49Z source: RADB last-modified: 2023-11-13T16:00:40Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source