These entries are queried from radb.net using whois, you can try my project getting these.
:AS136506 route: 103.52.236.0/24 origin: AS136506 descr: LEON CO.LTD-JP mnt-by: MAINT-AS137386 changed: a [at] child-wisdom.com 20210712 #14:40:05Z source: RADB last-modified: 2023-11-13T16:17:51Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 103.52.239.0/24 origin: AS136506 descr: LEONCOLTD-JP admin-c: LEONCOLTD-JP mnt-by: MAINT-AS137386 changed: a [at] child-wisdom.com 20220908 #06:15:01Z source: RADB last-modified: 2023-11-13T16:17:51Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 103.94.150.0/24 origin: AS136506 mnt-by: MAINT-AS137386 changed: a [at] child-wisdom.com 20231206 # 0816Z source: RADB last-modified: 2023-12-06T08:16:17Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 103.96.122.0/24 origin: AS136506 descr: RYUSEI GROUP CO.,LIMITED mnt-by: MAINT-AS137386 changed: a [at] child-wisdom.com 20230914 #01:44:28Z source: RADB last-modified: 2023-11-13T16:18:35Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 103.96.123.0/24 origin: AS136506 mnt-by: MAINT-AS137386 changed: a [at] child-wisdom.com 20231204 # 0331Z source: RADB last-modified: 2023-12-04T03:31:09Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 103.215.172.0/24 origin: AS136506 descr: LEON CO.LTD-JP mnt-by: MAINT-AS137386 changed: a [at] child-wisdom.com 20210712 #14:39:04Z source: RADB last-modified: 2023-11-13T16:17:51Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 103.215.175.0/24 origin: AS136506 descr: LEONCOLTD-JP admin-c: LEONCOLTD-JP mnt-by: MAINT-AS137386 changed: a [at] child-wisdom.com 20220908 #06:15:44Z source: RADB last-modified: 2023-11-13T16:17:51Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 123.253.216.0/24 origin: AS136506 mnt-by: MAINT-AS137386 changed: a [at] child-wisdom.com 20231204 # 0330Z source: RADB last-modified: 2023-12-04T03:30:12Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 157.119.52.0/24 origin: AS136506 descr: LEON CO.LTD Tensho Ikebukuro West Exit Building, Ikebukuro 2-13-4 , Toshima-ku, mnt-by: MAINT-LEONCOLTD-JP last-modified: 2023-12-06T08:27:58Z source: APNIC rpki-ov-state: valid route: 157.119.52.0/24 origin: AS136506 mnt-by: MAINT-AS137386 changed: a [at] child-wisdom.com 20231206 # 0817Z source: RADB last-modified: 2023-12-06T08:17:59Z rpki-ov-state: valid route: 157.119.54.0/24 origin: AS136506 descr: LEON CO.LTD Tensho Ikebukuro West Exit Building, Ikebukuro 2-13-4 , Toshima-ku, mnt-by: MAINT-LEONCOLTD-JP last-modified: 2017-08-14T06:51:56Z source: APNIC rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source