These entries are queried from radb.net using whois, you can try my project getting these.
:AS18070 route: 103.215.84.0/22 descr: Global Network Core Co.,Ltd. origin: AS18070 notify: operators [at] global-netcore.jp mnt-by: MAINT-AS18070 changed: operators [at] global-netcore.jp 20170620 source: NTTCOM rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 103.215.84.0/22 descr: Global Network Core Co.,Ltd. X-Keiro:operators [at] global-netcore.jp origin: AS18070 notify: operators [at] global-netcore.jp mnt-by: MAINT-AS18070 changed: operators [at] global-netcore.jp 20230704 source: JPIRR rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 103.215.84.0/22 descr: Global Network Core Co.,Ltd. origin: AS18070 notify: operators [at] global-netcore.jp mnt-by: MAINT-AS18070 changed: operators [at] global-netcore.jp 20170620 #04:54:11Z source: RADB last-modified: 2023-11-13T15:51:13Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 117.102.168.0/21 descr: Global Network Core Co.,Ltd. X-Keiro:operators [at] global-netcore.jp origin: AS18070 notify: operators [at] global-netcore.jp mnt-by: MAINT-AS18070 changed: operators [at] global-netcore.jp 20230704 source: JPIRR rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 117.102.168.0/21 descr: Global Network Core Co.,Ltd. origin: AS18070 notify: operators [at] global-netcore.jp mnt-by: MAINT-AS18070 changed: tech-ops [at] niigata-idc.ne.jp 20070723 #01:45:23(UTC) changed: operators [at] global-netcore.jp 20080403 #05:31:06Z 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: 117.102.168.0/21 descr: Global Network Core Co.,Ltd. origin: AS18070 notify: operators [at] global-netcore.jp mnt-by: MAINT-AS18070 changed: operators [at] global-netcore.jp 20110915 source: NTTCOM rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 210.158.160.0/20 descr: Global Network Core Co.,Ltd. X-Keiro:operators [at] global-netcore.jp origin: AS18070 notify: operators [at] global-netcore.jp mnt-by: MAINT-AS18070 changed: operators [at] global-netcore.jp 20230704 source: JPIRR rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 210.158.160.0/20 descr: Global Network Core Co.,Ltd. origin: AS18070 notify: operators [at] global-netcore.jp mnt-by: MAINT-AS18070 changed: operators [at] global-netcore.jp 20130917 source: NTTCOM rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 210.158.160.0/20 descr: Global Network Core Co.,Ltd. origin: AS18070 notify: operators [at] global-netcore.jp mnt-by: MAINT-AS18070 changed: operators [at] global-netcore.jp 20130916 #01:05:01Z source: RADB last-modified: 2023-11-13T15:45:38Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 218.223.32.0/20 descr: Global Network Core Co.,Ltd. origin: AS18070 notify: operators [at] global-netcore.jp mnt-by: MAINT-AS18070 changed: yasuyuki [at] ninet.co.jp 20070704 changed: operators [at] global-netcore.jp 20080403 #05:32:12Z 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: 218.223.32.0/20 descr: Global Network Core Co.,Ltd. X-Keiro:operators [at] global-netcore.jp origin: AS18070 notify: operators [at] global-netcore.jp mnt-by: MAINT-AS18070 changed: operators [at] global-netcore.jp 20230704 source: JPIRR rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 218.223.32.0/20 descr: Global Network Core Co.,Ltd. origin: AS18070 notify: operators [at] global-netcore.jp mnt-by: MAINT-AS18070 changed: operators [at] global-netcore.jp 20110915 source: NTTCOM rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 221.120.168.0/21 descr: Global Network Core Co.,Ltd. X-Keiro:operators [at] global-netcore.jp origin: AS18070 notify: operators [at] global-netcore.jp mnt-by: MAINT-AS18070 changed: operators [at] global-netcore.jp 20230704 source: JPIRR rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 221.120.168.0/21 descr: Global Network Core Co.,Ltd. origin: AS18070 notify: operators [at] global-netcore.jp mnt-by: MAINT-AS18070 changed: operators [at] global-netcore.jp 20110915 source: NTTCOM rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 221.120.168.0/21 descr: Global Network Core Co.,Ltd. origin: AS18070 mnt-by: MAINT-AS18070 changed: operators [at] global-netcore.jp 20110103 #04:35:54Z source: RADB last-modified: 2023-11-13T15:41:15Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route6: 2400:e000::/32 descr: Global Network Core Co.,Ltd. X-Keiro:operators [at] global-netcore.jp origin: AS18070 notify: operators [at] global-netcore.jp mnt-by: MAINT-AS18070 changed: operators [at] global-netcore.jp 20230704 source: JPIRR rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route6: 2400:e000::/32 descr: Global Network Core Co.,Ltd. origin: AS18070 notify: operators [at] global-netcore.jp mnt-by: MAINT-AS18070 changed: operators [at] global-netcore.jp 20110915 source: NTTCOM rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route6: 2400:e000::/32 descr: Global Network Core Co.,Ltd. origin: AS18070 notify: operators [at] global-netcore.jp mnt-by: MAINT-AS18070 changed: operators [at] global-netcore.jp 20090219 #10:31:00Z source: RADB last-modified: 2023-11-13T15:39:58Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source