These entries are queried from radb.net using whois, you can try my project getting these.
:AS328499 route: 45.220.48.0/24 origin: AS328499 descr: Proxy-registered route object mnt-by: MAINT-AS36994 changed: dirk.barnard [at] vodacom.co.za 20230505 #09:05:31Z source: RADB last-modified: 2023-11-13T16:17:09Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 45.220.48.0/24 descr: SPORTPESA LIMITED origin: AS328499 mnt-by: SL83-MNT changed: *** [at] sportpesa.co.tz 20190626 source: AFRINIC rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source