These entries are queried from radb.net using whois, you can try my project getting these.
:AS137462 route: 103.113.168.0/24 descr: Rakuten Communications Corp. origin: AS137462 notify: peer [at] fcc.ad.jp notify: makoto.a.osako [at] rakuten.com mnt-by: MAINT-AS10012 changed: kenichiro.imamura [at] rakuten.com 20230906 source: JPIRR rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 218.251.220.0/24 origin: AS137462 descr: Rakuten Communications K.K. Rakuten Crimson House 8F 1-14-1 Tamagawa Setagaya-ku mnt-by: MAINT-RMNI-JP last-modified: 2020-03-02T23:33:03Z source: APNIC rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source