These entries are queried from radb.net using whois, you can try my project getting these.
:AS17689 route: 27.96.72.0/21 descr: Hokuden Information Technology,Inc. origin: AS17689 admin-c: Keijiro Takahashi tech-c: Mutsumi Tominaga notify: staff [at] h-ix.ne.jp mnt-by: MAINT-AS17689 changed: staff [at] h-ix.ne.jp 20101024 #00:39:48Z source: RADB last-modified: 2023-11-13T15:41:01Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 27.96.80.0/22 descr: Hokuden Information Technology,Inc. origin: AS17689 admin-c: Keijiro Takahashi tech-c: Mutsumi Tominaga notify: staff [at] h-ix.ne.jp mnt-by: MAINT-AS17689 changed: staff [at] h-ix.ne.jp 20101024 #00:41:18Z source: RADB last-modified: 2023-11-13T15:41:01Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 61.198.16.0/20 descr: Hokuden Information Technology,Inc.(AS17689) 4, East 3, Oodori, Chuo-ku, Sapporo 060-0041 Japan origin: AS17689 admin-c: Keijiro Takahashi tech-c: Toshiaki Maruyama notify: staff [at] h-ix.ne.jp mnt-by: MAINT-AS17689 changed: staff [at] h-ix.ne.jp 20060313 changed: staff [at] h-ix.ne.jp 20060314 #05:23:22(UTC) source: RADB last-modified: 2023-11-13T15:39:37Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 202.177.32.0/21 descr: Hokuden Information Technology,Inc.(AS17689) 4, East 3, Oodori, Chuo-ku, Sapporo 060-0041 Japan origin: AS17689 notify: staff [at] h-ix.ne.jp mnt-by: MAINT-AS17689 changed: staff [at] h-ix.ne.jp 20041216 changed: staff [at] h-ix.ne.jp 20060316 #05:53:36(UTC) source: RADB last-modified: 2023-11-13T15:39:37Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 202.220.70.0/23 descr: BYSE, Inc origin: AS17689 notify: staff [at] h-ix.ne.jp mnt-by: MAINT-AS17689 changed: staff [at] h-ix.ne.jp 20021015 source: RADB last-modified: 2023-11-13T15:39:33Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route6: 2405:7800::/32 descr: Hokuden Information Technology,Inc. origin: AS17689 admin-c: Keijiro Takahashi tech-c: Mutsumi Tominaga notify: staff [at] h-ix.ne.jp mnt-by: MAINT-AS17689 changed: staff [at] h-ix.ne.jp 20090317 #00:12:13Z source: RADB last-modified: 2023-11-13T15:39:59Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source