These entries are queried from radb.net using whois, you can try my project getting these.
:AS327809 route: 154.73.172.0/22 descr: Route object origin: AS327809 mnt-by: ARC-MNT changed: *** [at] arc.sn 20200422 source: AFRINIC rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 154.73.172.0/22 origin: AS327809 descr: ARC-TELECOM notify: noc [at] dolphintelecom.net mnt-by: MAINT-AS37613 changed: hethakesa [at] dolphintelecom.net 20210204 #09:00:04Z source: RADB last-modified: 2023-11-13T16:03:31Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 154.115.128.0/20 descr: Route object origin: AS327809 mnt-by: ARC-MNT changed: *** [at] arc.sn 20200422 source: AFRINIC rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 154.115.128.0/20 origin: AS327809 descr: ARC-TELECOM notify: noc [at] dolphintelecom.net mnt-by: MAINT-AS37613 changed: hethakesa [at] dolphintelecom.net 20210204 #09:01:34Z source: RADB last-modified: 2023-11-13T16:03:31Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 154.115.128.0/22 descr: Route object origin: AS327809 mnt-by: ARC-MNT changed: *** [at] arc.sn 20200422 source: AFRINIC rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source