These entries are queried from radb.net using whois, you can try my project getting these.
:AS141438 route: 203.145.32.0/23 descr: BSEZ origin: AS141438 mnt-by: MAINT-BANGLADESHSEZLTD-BD last-modified: 2024-01-25T08:44:32Z source: APNIC rpki-ov-state: valid route: 203.145.32.0/24 descr: BSEZ origin: AS141438 mnt-by: MAINT-BANGLADESHSEZLTD-BD last-modified: 2024-01-25T08:44:33Z source: APNIC rpki-ov-state: valid route: 203.145.33.0/24 descr: BSEZ origin: AS141438 mnt-by: MAINT-BANGLADESHSEZLTD-BD last-modified: 2024-01-25T08:44:33Z source: APNIC rpki-ov-state: valid route6: 2001:df3:2640::/48 descr: BSEZ origin: AS141438 mnt-by: MAINT-BANGLADESHSEZLTD-BD last-modified: 2024-01-25T08:54:33Z source: APNIC rpki-ov-state: valid