These entries are queried from radb.net using whois, you can try my project getting these.
:AS2512 route: 157.14.0.0/20 origin: AS2512 descr: Tokai Communication Platform Inc. 10-15, Masaki-4, Naka, Nagoya 460-0024, Japan mnt-by: MAINT-AS2512 changed: tcp-net.ad.jp">as-admin [at] tcp-net.ad.jp 20230517 #08:04:34Z source: RADB last-modified: 2023-11-13T16:17:12Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 157.14.16.0/22 origin: AS2512 descr: Tokai Communication Platform Inc. 10-15, Masaki-4, Naka, Nagoya 460-0024, Japan mnt-by: MAINT-AS2512 changed: tcp-net.ad.jp">as-admin [at] tcp-net.ad.jp 20230517 #08:05:56Z source: RADB last-modified: 2023-11-13T16:17:12Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 157.14.24.0/21 origin: AS2512 descr: Tokai Communication Platform Inc. 10-15, Masaki-4, Naka, Nagoya 460-0024, Japan mnt-by: MAINT-AS2512 changed: tcp-net.ad.jp">as-admin [at] tcp-net.ad.jp 20230517 #08:06:44Z source: RADB last-modified: 2023-11-13T16:17:12Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 157.14.48.0/21 origin: AS2512 descr: Tokai Communication Platform Inc. 10-15, Masaki-4, Naka, Nagoya 460-0024, Japan mnt-by: MAINT-AS2512 changed: tcp-net.ad.jp">as-admin [at] tcp-net.ad.jp 20210616 #04:30:35Z source: RADB last-modified: 2023-11-13T16:05:49Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 157.14.80.0/23 origin: AS2512 descr: Tokai Communication Platform Inc. 10-15, Masaki-4, Naka, Nagoya 460-0024, Japan mnt-by: MAINT-AS2512 changed: tcp-net.ad.jp">as-admin [at] tcp-net.ad.jp 20230517 #08:08:50Z source: RADB last-modified: 2023-11-13T16:17:12Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 157.14.128.0/21 descr: Tokai Communication Platform Inc. 10-15, Masaki-4, Naka, Nagoya 460-0024, Japan origin: AS2512 mnt-by: MAINT-AS2512 changed: tcp-net.ad.jp">as-admin [at] tcp-net.ad.jp 20111005 #01:05:10Z source: RADB last-modified: 2023-11-13T15:41:43Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 157.14.128.0/21 descr: Tokai Communication Platform Inc. 10-15, Masaki-4, Naka, Nagoya 460-0024, Japan origin: AS2512 mnt-by: MAINT-AS7684 changed: peer [at] sakura.ad.jp 20231102 source: JPIRR rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 157.14.212.0/22 descr: Tokai Communication Platform Inc. 10-15, Masaki-4, Naka, Nagoya 460-0024, Japan origin: AS2512 mnt-by: MAINT-AS7684 changed: peer [at] sakura.ad.jp 20231102 source: JPIRR rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 157.14.212.0/22 descr: Tokai Communication Platform Inc. 10-15, Masaki-4, Naka, Nagoya 460-0024, Japan origin: AS2512 mnt-by: MAINT-AS2512 changed: tcp-net.ad.jp">as-admin [at] tcp-net.ad.jp 20111005 #01:06:04Z source: RADB last-modified: 2023-11-13T15:41:43Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 157.14.248.0/22 descr: Tokai Communication Platform Inc. 10-15, Masaki-4, Naka, Nagoya 460-0024, Japan origin: AS2512 mnt-by: MAINT-AS7684 changed: peer [at] sakura.ad.jp 20231102 source: JPIRR rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 157.14.248.0/22 descr: Tokai Communication Platform Inc. 10-15, Masaki-4, Naka, Nagoya 460-0024, Japan origin: AS2512 mnt-by: MAINT-AS2512 changed: tcp-net.ad.jp">as-admin [at] tcp-net.ad.jp 20111005 #01:07:37Z source: RADB last-modified: 2023-11-13T15:41:43Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 192.244.203.0/24 descr: TSC-net 333-9, Hamaike, Nishimiyuki-cho, Toyohashi-shi, Aichi 441, Japan origin: AS2512 mnt-by: MAINT-AS7684 changed: peer [at] sakura.ad.jp 20230701 source: JPIRR rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 192.244.203.0/24 descr: TSC-net 333-9, Hamaike, Nishimiyuki-cho, Toyohashi-shi, Aichi 441, Japan origin: AS2512 mnt-by: MAINT-AS2512 changed: kiuchi [at] tcp-net.ad.jp 19951229 source: RADB last-modified: 2023-11-13T15:39:32Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 202.241.143.0/24 origin: AS2512 descr: TCP-NET CIDR BLOCK 10-15, Masaki-4, Naka, Nagoya 460, Japan mnt-by: MAINT-AS2512 changed: tcp-net.ad.jp">as-admin [at] tcp-net.ad.jp 20220915 #05:25:11Z source: RADB last-modified: 2023-11-13T16:12:29Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 202.241.157.0/24 origin: AS2512 descr: TCP-NET CIDR BLOCK 10-15, Masaki-4, Naka, Nagoya 460, Japan mnt-by: MAINT-AS2512 changed: tcp-net.ad.jp">as-admin [at] tcp-net.ad.jp 20220915 #05:28:53Z source: RADB last-modified: 2023-11-13T16:12:29Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 202.241.177.0/24 origin: AS2512 descr: TCP-NET CIDR BLOCK 10-15, Masaki-4, Naka, Nagoya 460, Japan mnt-by: MAINT-AS2512 changed: tcp-net.ad.jp">as-admin [at] tcp-net.ad.jp 20220915 #05:30:53Z source: RADB last-modified: 2023-11-13T16:12:29Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 210.134.224.0/19 descr: sunshine hoshizaki 102, 2-206-2 Hoshizaki-cho , handa-city, aichi, 475-0911 JAPAN origin: AS2512 mnt-by: MAINT-AS2512 changed: kawamoto [at] tcp-net.ad.jp 20020524 source: RADB last-modified: 2023-11-13T15:39:32Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 210.134.224.0/19 descr: sunshine hoshizaki 102, 2-206-2 Hoshizaki-cho , handa-city, aichi, 475-0911 JAPAN origin: AS2512 mnt-by: MAINT-AS7684 changed: peer [at] sakura.ad.jp 20230701 source: JPIRR rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source