These entries are queried from radb.net using whois, you can try my project getting these.
:AS23618 route: 103.114.184.0/22 descr: Ibara Broadcasting Company,AS23618 origin: AS23618 notify: info [at] ibara.ne.jp mnt-by: MAINT-AS23618 changed: harada [at] icv.co.jp 20180609 #01:17:59Z source: RADB last-modified: 2023-11-13T15:53:46Z rpki-ov-state: valid route: 103.114.184.0/22 descr: Ibara Broadcasting Company,AS23618 origin: AS23618 notify: info [at] ibara.ne.jp mnt-by: MAINT-AS23618 changed: info [at] ibara.ne.jp 20240402 source: JPIRR rpki-ov-state: valid route: 117.18.24.0/21 descr: Ibara Broadcasting Company,AS23618 origin: AS23618 notify: info [at] ibara.ne.jp mnt-by: MAINT-AS23618 changed: info [at] ibara.ne.jp 20240402 source: JPIRR rpki-ov-state: valid route: 117.18.24.0/21 descr: Ibara Broadcasting Company,AS23618 origin: AS23618 notify: info [at] ibara.ne.jp mnt-by: MAINT-AS23618 changed: info [at] ibara.ne.jp 20110201 source: RADB last-modified: 2023-11-13T15:41:16Z rpki-ov-state: valid route: 150.9.208.0/21 descr: Ibara Broadcasting Company,AS23618 origin: AS23618 notify: info [at] ibara.ne.jp mnt-by: MAINT-AS23618 changed: info [at] ibara.ne.jp 20240402 source: JPIRR rpki-ov-state: valid route: 150.9.208.0/21 origin: AS23618 descr: Ibara Broadcasting Company,AS23618 notify: info [at] ibara.ne.jp mnt-by: MAINT-AS23618 changed: rtanaka [at] icv.co.jp 20220914 #00:15:41Z source: RADB last-modified: 2023-11-13T16:12:29Z rpki-ov-state: valid route: 210.157.80.0/20 descr: Ibara Broadcasting Company,AS23618 origin: AS23618 notify: info [at] ibara.ne.jp mnt-by: MAINT-AS23618 changed: info [at] ibara.ne.jp 20240402 source: JPIRR rpki-ov-state: valid route: 210.157.80.0/20 descr: Ibara Broadcasting Company,AS23618 origin: AS23618 notify: info [at] ibara.ne.jp mnt-by: MAINT-AS23618 changed: info [at] ibara.ne.jp 20110201 source: RADB last-modified: 2023-11-13T15:41:16Z rpki-ov-state: valid route: 223.29.244.0/22 descr: Ibara Broadcasting Company,AS23618 origin: AS23618 notify: info [at] ibara.ne.jp mnt-by: MAINT-AS23618 changed: harada [at] icv.co.jp 20110909 #11:25:05Z source: RADB last-modified: 2023-11-13T15:41:35Z rpki-ov-state: valid route: 223.29.244.0/22 descr: Ibara Broadcasting Company,AS23618 origin: AS23618 notify: info [at] ibara.ne.jp mnt-by: MAINT-AS23618 changed: info [at] ibara.ne.jp 20240402 source: JPIRR rpki-ov-state: valid route6: 2405:fe40::/32 descr: Ibara Broadcasting Company,AS23618 X-Keiro:info [at] ibara.ne.jp origin: AS23618 notify: info [at] ibara.ne.jp mnt-by: MAINT-AS23618 changed: info [at] ibara.ne.jp 20240402 source: JPIRR rpki-ov-state: valid route6: 2405:fe40::/32 origin: AS23618 descr: Ibara Broadcasting Company,AS23618 notify: info [at] ibara.ne.jp mnt-by: MAINT-AS23618 changed: rtanaka [at] icv.co.jp 20220818 #01:40:27Z source: RADB last-modified: 2023-11-13T16:12:11Z rpki-ov-state: valid