These entries are queried from radb.net using whois, you can try my project getting these.
:AS7530 route: 210.231.208.0/20 origin: AS7530 descr: IRI-BLK-1 notify: as9607 [at] bbtower.ad.jp mnt-by: MAINT-AS9607 changed: AS9607 [at] bbtower.ad.jp 20200714 #09:37:34Z source: RADB last-modified: 2023-11-13T16:01:12Z rpki-ov-state: valid route: 210.231.208.0/21 origin: AS7530 descr: IRI-BLK-2 notify: as9607 [at] bbtower.ad.jp mnt-by: MAINT-AS9607 changed: AS9607 [at] bbtower.ad.jp 20200714 #09:37:55Z source: RADB last-modified: 2023-11-13T16:01:12Z rpki-ov-state: valid route: 210.231.212.0/22 origin: AS7530 descr: IRI-BLK-3 notify: as9607 [at] bbtower.ad.jp mnt-by: MAINT-AS9607 changed: AS9607 [at] bbtower.ad.jp 20210228 #03:18:43Z source: RADB last-modified: 2023-11-13T16:03:40Z rpki-ov-state: valid route: 210.231.216.0/21 origin: AS7530 descr: IRI-BLK-4 notify: as9607 [at] bbtower.ad.jp mnt-by: MAINT-AS9607 changed: AS9607 [at] bbtower.ad.jp 20201001 #08:56:41Z source: RADB last-modified: 2023-11-13T16:01:58Z rpki-ov-state: valid route: 210.231.220.0/22 origin: AS7530 descr: IRI-BLK-5 notify: as9607 [at] bbtower.ad.jp mnt-by: MAINT-AS9607 changed: AS9607 [at] bbtower.ad.jp 20210228 #03:19:31Z source: RADB last-modified: 2023-11-13T16:03:40Z rpki-ov-state: valid route: 210.231.222.0/23 origin: AS7530 descr: IRI-BLK-6 notify: as9607 [at] bbtower.ad.jp mnt-by: MAINT-AS9607 changed: AS9607 [at] bbtower.ad.jp 20201001 #08:57:23Z source: RADB last-modified: 2023-11-13T16:01:58Z rpki-ov-state: valid route6: 2405:f000::/32 descr: IRI-BLK6-1 origin: AS7530 notify: as9607 [at] bbtower.ad.jp mnt-by: MAINT-AS9607 changed: AS9607 [at] bbtower.ad.jp 20151130 #02:44:57Z source: RADB last-modified: 2023-11-13T15:56:07Z rpki-ov-state: valid