These entries are queried from radb.net using whois, you can try my project getting these.
:AS23619 route: 210.133.112.0/20 descr: Smartvalue Co.,Ltd. maintainer origin: AS23619 notify: idc-request [at] g.smartvalue.ad.jp mnt-by: MAINT-JP-SMARTVALUE changed: idc-request [at] g.smartvalue.ad.jp 20171016 source: NTTCOM rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 210.133.112.0/20 descr: KIIS,AS23619 origin: AS23619 notify: noc [at] noc.kddnet.ad.jp mnt-by: MAINT-AS2516 changed: noc [at] noc.kddnet.ad.jp 20030603 source: RADB last-modified: 2023-11-13T15:39:33Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 210.133.112.0/21 descr: Smartvalue Co.,Ltd. maintainer origin: AS23619 notify: idc-request [at] g.smartvalue.ad.jp mnt-by: MAINT-JP-SMARTVALUE changed: idc-request [at] g.smartvalue.ad.jp 20171016 source: NTTCOM rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 210.133.120.0/21 descr: Smartvalue Co.,Ltd. maintainer origin: AS23619 notify: idc-request [at] g.smartvalue.ad.jp mnt-by: MAINT-JP-SMARTVALUE changed: idc-request [at] g.smartvalue.ad.jp 20171016 source: NTTCOM rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 210.189.160.0/20 descr: SAKURANET network by SMARTVALUE Co.,Ltd. origin: AS23619 notify: noc [at] noc.kddnet.ad.jp notify: nic [at] smartvalue.ad.jp mnt-by: MAINT-AS2516 changed: noc [at] noc.kddnet.ad.jp 20101221 source: RADB last-modified: 2023-11-13T15:41:15Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 210.189.160.0/20 descr: Smartvalue Co.,Ltd. maintainer origin: AS23619 notify: idc-request [at] g.smartvalue.ad.jp mnt-by: MAINT-JP-SMARTVALUE changed: idc-request [at] g.smartvalue.ad.jp 20171016 source: NTTCOM rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 210.189.160.0/21 descr: Smartvalue Co.,Ltd. maintainer origin: AS23619 notify: idc-request [at] g.smartvalue.ad.jp mnt-by: MAINT-JP-SMARTVALUE changed: idc-request [at] g.smartvalue.ad.jp 20171016 source: NTTCOM rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 210.189.168.0/21 descr: Smartvalue Co.,Ltd. maintainer origin: AS23619 notify: idc-request [at] g.smartvalue.ad.jp mnt-by: MAINT-JP-SMARTVALUE changed: idc-request [at] g.smartvalue.ad.jp 20171016 source: NTTCOM rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source