These entries are queried from radb.net using whois, you can try my project getting these.
:AS18150 route: 61.7.0.0/17 descr: Sagashimbun Co., Ltd origin: AS18150 admin-c: Minobu Matsuoka tech-c: Jun Tanaka mnt-by: MAINT-AS7684 changed: peer [at] sakura.ad.jp 20230901 source: JPIRR rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 61.7.0.0/17 descr: Sagashimbun Co., Ltd. origin: AS18150 admin-c: Minobu Matsuoka tech-c: Jun Tanaka mnt-by: MAINT-AS18150 changed: radb [at] sni.ne.jp 20120622 source: RADB last-modified: 2023-11-13T15:43:21Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 61.7.0.0/18 descr: SNI-JP expire=24 origin: AS18150 notify: jpnic [at] ps.sni.ne.jp mnt-by: MAINT-JP-SNI changed: hostmaster [at] sni.ne.jp 20230703 source: JPIRR rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 61.7.0.0/18 origin: AS18150 descr: NetcomBB Co., Ltd. admin-c: Minobu Matsuoka tech-c: Jun Tanaka notify: radb [at] sni.ne.jp mnt-by: MAINT-AS18150 changed: radb [at] sni.ne.jp 20190425 #17:06:11Z source: RADB last-modified: 2023-11-13T15:56:04Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 61.7.0.0/18 descr: Sagashimbun Co., Ltd. 3-2-23 , Tenjin , Saga-shi, Saga 840-8585 Japan origin: AS18150 notify: jpnic [at] ps.sni.ne.jp mnt-by: MAINT-JP-SNI changed: hostmaster [at] sni.ne.jp 20070821 source: NTTCOM rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 61.7.0.0/19 descr: SNI-JP expire=24 origin: AS18150 notify: jpnic [at] ps.sni.ne.jp mnt-by: MAINT-JP-SNI changed: hostmaster [at] sni.ne.jp 20230703 source: JPIRR rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 61.7.0.0/19 descr: NetcomBB Co., Ltd. 3-2-23 , Tenjin , Saga-shi, Saga 840-0815 Japan origin: AS18150 notify: jpnic [at] ps.sni.ne.jp mnt-by: MAINT-JP-SNI changed: hostmaster [at] sni.ne.jp 20230703 source: NTTCOM last-modified: 2023-07-03T01:18:54Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 61.7.0.0/19 origin: AS18150 descr: NetcomBB Co., Ltd. admin-c: Minobu Matsuoka geoidx: Jun Tanaka mnt-by: MAINT-AS18150 changed: radb [at] sni.ne.jp 20190425 #17:05:55Z source: RADB last-modified: 2023-11-13T15:56:04Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 61.7.32.0/19 origin: AS18150 descr: NetcomBB Co., Ltd. admin-c: Minobu Matsuoka tech-c: Jun Tanaka mnt-by: MAINT-AS18150 changed: radb [at] sni.ne.jp 20190425 #17:05:24Z source: RADB last-modified: 2023-11-13T15:56:04Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 61.7.32.0/19 descr: NetcomBB Co., Ltd. 3-2-23 , Tenjin , Saga-shi, Saga 840-0815 Japan origin: AS18150 notify: jpnic [at] ps.sni.ne.jp mnt-by: MAINT-JP-SNI changed: hostmaster [at] sni.ne.jp 20230703 source: NTTCOM last-modified: 2023-07-03T01:18:54Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 61.7.32.0/19 descr: SNI-JP expire=24 origin: AS18150 notify: jpnic [at] ps.sni.ne.jp mnt-by: MAINT-JP-SNI changed: hostmaster [at] sni.ne.jp 20230703 source: JPIRR rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 61.7.64.0/18 origin: AS18150 descr: NetcomBB Co., Ltd. admin-c: Minobu Matsuoka tech-c: Jun Tanaka notify: radb [at] sni.ne.jp mnt-by: MAINT-AS18150 changed: radb [at] sni.ne.jp 20190425 #17:05:10Z source: RADB last-modified: 2023-11-13T15:56:04Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 61.7.64.0/18 descr: Sagashimbun Co., Ltd. 3-2-23 , Tenjin , Saga-shi, Saga 840-8585 Japan origin: AS18150 notify: jpnic [at] ps.sni.ne.jp mnt-by: MAINT-JP-SNI changed: hostmaster [at] sni.ne.jp 20070821 source: NTTCOM rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 61.7.64.0/18 descr: SNI-JP expire=24 origin: AS18150 notify: jpnic [at] ps.sni.ne.jp mnt-by: MAINT-JP-SNI changed: hostmaster [at] sni.ne.jp 20230703 source: JPIRR rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 61.7.64.0/19 origin: AS18150 descr: NetcomBB Co., Ltd. admin-c: Minobu Matsuoka tech-c: Jun Tanaka mnt-by: MAINT-AS18150 changed: radb [at] sni.ne.jp 20190425 #17:04:56Z source: RADB last-modified: 2023-11-13T15:56:04Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 61.7.64.0/19 descr: NetcomBB Co., Ltd. 3-2-23 , Tenjin , Saga-shi, Saga 840-0815 Japan origin: AS18150 notify: jpnic [at] ps.sni.ne.jp mnt-by: MAINT-JP-SNI changed: hostmaster [at] sni.ne.jp 20230703 source: NTTCOM last-modified: 2023-07-03T01:18:54Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 61.7.64.0/19 descr: SNI-JP expire=24 origin: AS18150 notify: jpnic [at] ps.sni.ne.jp mnt-by: MAINT-JP-SNI changed: hostmaster [at] sni.ne.jp 20230703 source: JPIRR rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 61.7.96.0/19 descr: NetcomBB Co., Ltd. 3-2-23 , Tenjin , Saga-shi, Saga 840-0815 Japan origin: AS18150 notify: jpnic [at] ps.sni.ne.jp mnt-by: MAINT-JP-SNI changed: hostmaster [at] sni.ne.jp 20230703 source: NTTCOM last-modified: 2023-07-03T01:18:54Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 61.7.96.0/19 descr: SNI-JP expire=24 origin: AS18150 notify: jpnic [at] ps.sni.ne.jp mnt-by: MAINT-JP-SNI changed: hostmaster [at] sni.ne.jp 20230703 source: JPIRR rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 61.7.96.0/19 origin: AS18150 descr: NetcomBB Co., Ltd. admin-c: Minobu Matsuoka tech-c: Jun Tanaka mnt-by: MAINT-AS18150 changed: radb [at] sni.ne.jp 20190415 #18:36:15Z source: RADB last-modified: 2023-11-13T15:56:04Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 61.7.104.0/22 origin: AS18150 descr: NetcomBB Co., Ltd. admin-c: Minobu Matsuoka tech-c: Jun Tanaka notify: radb [at] sni.ne.jp mnt-by: MAINT-AS18150 changed: radb [at] sni.ne.jp 20190425 #17:05:42Z source: RADB last-modified: 2023-11-13T15:56:04Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 61.7.104.0/22 descr: Sagashimbun Co., Ltd. 3-2-23 , Tenjin , Saga-shi, Saga 840-8585 Japan origin: AS18150 notify: jpnic [at] ps.sni.ne.jp mnt-by: MAINT-JP-SNI changed: hostmaster [at] sni.ne.jp 20080501 source: NTTCOM rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 61.7.104.0/22 descr: SNI-JP expire=24 origin: AS18150 notify: jpnic [at] ps.sni.ne.jp mnt-by: MAINT-JP-SNI changed: hostmaster [at] sni.ne.jp 20230703 source: JPIRR rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 61.7.106.0/23 descr: Sagashimbun Co., Ltd. 3-2-23 , Tenjin , Saga-shi, Saga 840-8585 Japan origin: AS18150 notify: jpnic [at] ps.sni.ne.jp mnt-by: MAINT-JP-SNI changed: hostmaster [at] sni.ne.jp 20070821 source: NTTCOM rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source