These entries are queried from radb.net using whois, you can try my project getting these.
:AS38641 route: 133.64.0.0/16 descr: Osaka Sangyo University origin: AS38641 mnt-by: MAINT-AS2907 changed: as2907 [at] sinet.ad.jp 20240401 source: JPIRR rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 133.64.0.0/16 descr: Osaka Sangyo University origin: AS38641 notify: noc [at] noc.kddnet.ad.jp mnt-by: MAINT-AS2516 changed: noc [at] noc.kddnet.ad.jp 20080805 source: RADB last-modified: 2023-11-13T15:39:55Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 133.64.0.0/17 descr: Osaka Sangyo University origin: AS38641 mnt-by: MAINT-AS2907 changed: as2907 [at] sinet.ad.jp 20240401 source: JPIRR rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 133.64.128.0/17 descr: Osaka Sangyo University origin: AS38641 mnt-by: MAINT-AS2907 changed: as2907 [at] sinet.ad.jp 20240401 source: JPIRR rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source