These entries are queried from radb.net using whois, you can try my project getting these.
:AS140901 route: 103.153.52.0/23 origin: AS140901 descr: Saiful Islam mnt-by: MAINT-WEBRANGERSNET-BD last-modified: 2024-03-10T20:09:10Z source: APNIC rpki-ov-state: valid route: 103.153.52.0/24 origin: AS140901 descr: Saiful Islam mnt-by: MAINT-WEBRANGERSNET-BD last-modified: 2024-03-10T20:09:10Z source: APNIC rpki-ov-state: valid route: 103.153.53.0/24 origin: AS140901 descr: Saiful Islam mnt-by: MAINT-WEBRANGERSNET-BD last-modified: 2024-03-10T20:09:10Z source: APNIC rpki-ov-state: valid