These entries are queried from radb.net using whois, you can try my project getting these.
:AS24270 route: 103.68.144.0/22 descr: Network for CTC Kobe Center origin: AS24270 mnt-by: MAINT-AS24270 changed: as24270 [at] ctc-g.co.jp 20160715 #08:34:58Z source: RADB last-modified: 2023-11-13T15:49:34Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 103.68.144.0/24 descr: Network for CTC Kobe Center origin: AS24270 mnt-by: MAINT-AS24270 changed: as24270 [at] ctc-g.co.jp 20160715 #08:39:06Z source: RADB last-modified: 2023-11-13T15:49:34Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 103.68.145.0/24 descr: Network for CTC Kobe Center origin: AS24270 mnt-by: MAINT-AS24270 changed: as24270 [at] ctc-g.co.jp 20160715 #08:39:33Z source: RADB last-modified: 2023-11-13T15:49:34Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 103.68.146.0/24 descr: Network for CTC Kobe Center origin: AS24270 mnt-by: MAINT-AS24270 changed: as24270 [at] ctc-g.co.jp 20160715 #08:40:00Z source: RADB last-modified: 2023-11-13T15:49:34Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 103.68.147.0/24 descr: Network for CTC Kobe Center origin: AS24270 mnt-by: MAINT-AS24270 changed: as24270 [at] ctc-g.co.jp 20160715 #08:40:25Z source: RADB last-modified: 2023-11-13T15:49:34Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 202.83.144.0/21 descr: Network for CTC Kobe Center origin: AS24270 mnt-by: MAINT-AS24270 changed: as24270 [at] ctc-g.co.jp 20180904 #06:55:05Z source: RADB last-modified: 2023-11-13T15:54:36Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 202.83.144.0/22 origin: AS24270 descr: Network for CTC Kobe Center mnt-by: MAINT-AS24270 changed: as24270 [at] ctc-g.co.jp 20211202 #09:39:54Z source: RADB last-modified: 2023-11-13T16:09:01Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 202.83.148.0/22 origin: AS24270 descr: Network for CTC Kobe Center mnt-by: MAINT-AS24270 changed: as24270 [at] ctc-g.co.jp 20211202 #09:40:46Z source: RADB last-modified: 2023-11-13T16:09:01Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 203.99.240.0/21 descr: Network for CTC Kobe Center origin: AS24270 mnt-by: MAINT-AS24270 changed: m-nagai [at] crc.co.jp 20050621 #05:35:19(UTC) changed: as24270 [at] ctc-g.co.jp 20071026 #10:14:35(UTC) source: RADB last-modified: 2023-11-13T15:39:53Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 203.99.240.0/21 descr: Network for CTC Kobe Center origin: AS24270 mnt-by: MAINT-AS7684 changed: peer [at] sakura.ad.jp 20240401 source: JPIRR rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 203.99.240.0/24 descr: Network for CTC Kobe Center origin: AS24270 mnt-by: MAINT-AS24270 changed: as24270 [at] ctc-g.co.jp 20160303 #02:57:49Z source: RADB last-modified: 2023-11-13T15:48:46Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 203.99.241.0/24 descr: Network for CTC Kobe Center origin: AS24270 mnt-by: MAINT-AS24270 changed: as24270 [at] ctc-g.co.jp 20160303 #02:59:38Z source: RADB last-modified: 2023-11-13T15:48:46Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 203.99.242.0/24 descr: Network for CTC Kobe Center origin: AS24270 mnt-by: MAINT-AS24270 changed: as24270 [at] ctc-g.co.jp 20160303 #03:01:13Z source: RADB last-modified: 2023-11-13T15:48:46Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 203.99.243.0/24 descr: Network for CTC Kobe Center origin: AS24270 mnt-by: MAINT-AS24270 changed: as24270 [at] ctc-g.co.jp 20160303 #03:01:37Z source: RADB last-modified: 2023-11-13T15:48:46Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 203.99.244.0/24 descr: Network for CTC Kobe Center origin: AS24270 mnt-by: MAINT-AS24270 changed: as24270 [at] ctc-g.co.jp 20160303 #03:02:14Z source: RADB last-modified: 2023-11-13T15:48:46Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 203.99.245.0/24 descr: Network for CTC Kobe Center origin: AS24270 mnt-by: MAINT-AS24270 changed: as24270 [at] ctc-g.co.jp 20160303 #03:02:39Z source: RADB last-modified: 2023-11-13T15:48:46Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 203.99.246.0/24 descr: Network for CTC Kobe Center origin: AS24270 mnt-by: MAINT-AS24270 changed: as24270 [at] ctc-g.co.jp 20160303 #03:03:32Z source: RADB last-modified: 2023-11-13T15:48:46Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 203.99.247.0/24 descr: Network for CTC Kobe Center origin: AS24270 mnt-by: MAINT-AS24270 changed: as24270 [at] ctc-g.co.jp 20160131 #04:17:39Z source: RADB last-modified: 2023-11-13T15:48:32Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route6: 2405:2700::/32 descr: ITOCHU Techno-Solutions Corporation origin: AS24270 admin-c: Masao Nagai notify: as24270 [at] ctc-g.co.jp mnt-by: MAINT-AS24270 changed: as24270 [at] ctc-g.co.jp 20121012 #06:10:47Z source: RADB last-modified: 2023-11-13T15:43:27Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source