These entries are queried from radb.net using whois, you can try my project getting these.
:AS17673 route: 211.19.33.0/24 origin: AS17673 descr: Mitsui Knowledge Industry Co., Ltd. MKI Bldg. B1F 2-7-14, Higashinakano Nakano-ku,Tokyo JAPAN 164-8555 mnt-by: MAINT-AS17673 changed: network [at] idc.mki.jp 20220318 #04:07:01Z source: RADB last-modified: 2023-11-13T16:10:09Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 211.19.36.0/24 origin: AS17673 descr: Mitsui Knowledge Industry Co., Ltd. MKI Bldg. B1F 2-7-14, Higashinakano Nakano-ku,Tokyo JAPAN 164-8555 mnt-by: MAINT-AS17673 changed: network [at] idc.mki.jp 20220418 #05:09:53Z source: RADB last-modified: 2023-11-13T16:10:51Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 211.19.37.0/24 origin: AS17673 descr: Mitsui Knowledge Industry Co., Ltd. MKI Bldg. B1F 2-7-14, Higashinakano Nakano-ku,Tokyo JAPAN 164-8555 mnt-by: MAINT-AS17673 changed: network [at] idc.mki.jp 20220418 #05:10:32Z source: RADB last-modified: 2023-11-13T16:10:51Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 211.19.40.0/24 origin: AS17673 descr: Mitsui Knowledge Industry Co., Ltd. MKI Bldg. B1F 2-7-14, Higashinakano Nakano-ku,Tokyo JAPAN 164-8555 mnt-by: MAINT-AS17673 changed: network [at] idc.mki.jp 20220318 #04:10:15Z source: RADB last-modified: 2023-11-13T16:10:09Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 211.19.41.0/24 origin: AS17673 descr: Mitsui Knowledge Industry Co., Ltd. MKI Bldg. B1F 2-7-14, Higashinakano Nakano-ku,Tokyo JAPAN 164-8555 mnt-by: MAINT-AS17673 changed: network [at] idc.mki.jp 20220318 #04:10:39Z source: RADB last-modified: 2023-11-13T16:10:09Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 211.19.42.0/24 origin: AS17673 descr: Mitsui Knowledge Industry Co., Ltd. MKI Bldg. B1F 2-7-14, Higashinakano Nakano-ku,Tokyo JAPAN 164-8555 mnt-by: MAINT-AS17673 changed: network [at] idc.mki.jp 20220318 #04:11:05Z source: RADB last-modified: 2023-11-13T16:10:09Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 211.19.43.0/24 origin: AS17673 descr: Mitsui Knowledge Industry Co., Ltd. MKI Bldg. B1F 2-7-14, Higashinakano Nakano-ku,Tokyo JAPAN 164-8555 mnt-by: MAINT-AS17673 changed: network [at] idc.mki.jp 20220318 #04:11:27Z source: RADB last-modified: 2023-11-13T16:10:09Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 211.19.44.0/24 origin: AS17673 descr: Mitsui Knowledge Industry Co., Ltd. MKI Bldg. B1F 2-7-14, Higashinakano Nakano-ku,Tokyo JAPAN 164-8555 mnt-by: MAINT-AS17673 changed: network [at] idc.mki.jp 20220318 #04:11:53Z source: RADB last-modified: 2023-11-13T16:10:09Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 211.19.45.0/24 origin: AS17673 descr: Mitsui Knowledge Industry Co., Ltd. MKI Bldg. B1F 2-7-14, Higashinakano Nakano-ku,Tokyo JAPAN 164-8555 mnt-by: MAINT-AS17673 changed: network [at] idc.mki.jp 20220318 #04:12:16Z source: RADB last-modified: 2023-11-13T16:10:09Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 211.19.46.0/24 origin: AS17673 descr: Mitsui Knowledge Industry Co., Ltd. MKI Bldg. B1F 2-7-14, Higashinakano Nakano-ku,Tokyo JAPAN 164-8555 mnt-by: MAINT-AS17673 changed: network [at] idc.mki.jp 20220318 #04:12:37Z source: RADB last-modified: 2023-11-13T16:10:09Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 211.19.47.0/24 origin: AS17673 descr: Mitsui Knowledge Industry Co., Ltd. MKI Bldg. B1F 2-7-14, Higashinakano Nakano-ku,Tokyo JAPAN 164-8555 mnt-by: MAINT-AS17673 changed: network [at] idc.mki.jp 20220318 #04:12:59Z source: RADB last-modified: 2023-11-13T16:10:09Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route6: 2404:e000::/32 descr: Mitsui Knowledge Industry Co., Ltd. MKI Bldg. 2-7-14, Higashinakano, Nakano-ku, Tokyo JAPAN 164-8555 origin: AS17673 mnt-by: MAINT-AS17673 changed: network [at] mki-net.co.jp 20110106 #04:55:36Z source: RADB last-modified: 2023-11-13T16:00:03Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source