These entries are queried from radb.net using whois, you can try my project getting these.
:AS18278 route: 103.92.228.0/22 descr: Cable TV Co.,LTD. origin: AS18278 mnt-by: MAINT-IPRIO changed: hostmaster [at] iprio.co.jp 20170524 #09:44:00Z source: RADB last-modified: 2023-11-13T15:51:12Z rpki-ov-state: valid route: 118.82.48.0/20 descr: Cable TV Co.,LTD origin: AS18278 mnt-by: MAINT-IPRIO changed: hostmaster [at] iprio.co.jp 20110304 #09:03:35Z source: RADB last-modified: 2023-11-13T15:41:16Z rpki-ov-state: valid route: 123.0.64.0/19 descr: Cable TV Co.,LTD origin: AS18278 mnt-by: MAINT-IPRIO changed: hostmaster [at] iprio.co.jp 20070312 #05:42:03(UTC) source: RADB last-modified: 2023-11-13T15:39:41Z rpki-ov-state: valid route: 123.0.96.0/19 descr: Cable TV Co.,LTD origin: AS18278 mnt-by: MAINT-IPRIO changed: kazu [at] iprio.co.jp 20090216 #10:44:11Z source: RADB last-modified: 2023-11-13T15:39:58Z rpki-ov-state: valid route: 183.91.96.0/19 descr: Cable TV Co.,LTD origin: AS18278 mnt-by: MAINT-IPRIO changed: hostmaster [at] iprio.co.jp 20110304 #09:02:53Z source: RADB last-modified: 2023-11-13T15:41:16Z rpki-ov-state: valid route: 202.151.96.0/19 descr: Tochigi CATV co. remarks: POINT4716 origin: AS18278 notify: admin [at] int-gw.kddi.ne.jp mnt-by: MAINT-AS2516 changed: mine [at] pwd.ne.jp 20110204 source: RADB last-modified: 2023-11-13T15:41:15Z rpki-ov-state: valid route: 202.231.176.0/20 descr: Cable TV Co.,LTD. origin: AS18278 mnt-by: MAINT-IPRIO changed: hostmaster [at] iprio.co.jp 20060502 #05:12:42(UTC) source: RADB last-modified: 2023-11-13T15:39:37Z rpki-ov-state: valid route: 210.251.176.0/20 descr: Cable TV Co.,LTD origin: AS18278 mnt-by: MAINT-IPRIO changed: hostmaster [at] iprio.co.jp 20060502 #04:59:36(UTC) changed: hostmaster [at] iprio.co.jp 20060502 #05:09:57(UTC) source: RADB last-modified: 2023-11-13T15:39:37Z rpki-ov-state: valid route: 219.100.108.0/22 descr: Cable TV Co.,LTD. origin: AS18278 mnt-by: MAINT-IPRIO changed: hostmaster [at] iprio.co.jp 20170524 #09:45:03Z source: RADB last-modified: 2023-11-13T15:51:12Z rpki-ov-state: valid route6: 2400:a300::/32 origin: AS18278 descr: Cable TV Co.,LTD. mnt-by: MAINT-IPRIO changed: hostmaster [at] iprio.co.jp 20190704 #09:54:43Z source: RADB last-modified: 2023-11-13T15:56:41Z rpki-ov-state: valid