These entries are queried from radb.net using whois, you can try my project getting these.
:AS131946 route: 202.240.108.0/23 descr: MUSASHINO UNIVERSITY E.F. X-Keiro:jcenter [at] musashino-u.ac.jp origin: AS131946 notify: jcenter [at] musashino-u.ac.jp mnt-by: MAINT-AS131946 changed: jcenter [at] musashino-u.ac.jp 20230926 source: JPIRR rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 202.240.108.0/24 descr: MUSASHINO UNIVERSITY E.F. X-Keiro:jcenter [at] musashino-u.ac.jp origin: AS131946 notify: jcenter [at] musashino-u.ac.jp mnt-by: MAINT-AS131946 changed: jcenter [at] musashino-u.ac.jp 20230926 source: JPIRR rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 202.240.109.0/24 descr: MUSASHINO UNIVERSITY E.F. X-Keiro:jcenter [at] musashino-u.ac.jp origin: AS131946 notify: jcenter [at] musashino-u.ac.jp mnt-by: MAINT-AS131946 changed: jcenter [at] musashino-u.ac.jp 20230926 source: JPIRR rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source