These entries are queried from radb.net using whois, you can try my project getting these.
:AS139642 route: 103.141.200.0/23 origin: AS139642 descr: Md Fazlul Kader House-10,Road-01,Line-06 Block-A, Halishahar Chittagong mnt-by: MAINT-SMARTLINK-BD last-modified: 2024-03-23T08:25:48Z source: APNIC rpki-ov-state: valid route: 103.141.200.0/24 origin: AS139642 descr: Md Fazlul Kader House-10,Road-01,Line-06 Block-A, Halishahar Chittagong mnt-by: MAINT-SMARTLINK-BD last-modified: 2022-08-16T07:36:29Z source: APNIC rpki-ov-state: valid route: 103.141.201.0/24 origin: AS139642 descr: Md Fazlul Kader House-10,Road-01,Line-06 Block-A, Halishahar Chittagong mnt-by: MAINT-SMARTLINK-BD last-modified: 2024-03-23T08:24:31Z source: APNIC rpki-ov-state: valid route: 103.149.130.0/24 origin: AS139642 descr: Nasir Uzzaman Khandu Bari, Ramchandrapur, Rajfulbaria, Savar, Dhaka mnt-by: MAINT-TOAONLINE-BD last-modified: 2024-03-23T08:42:13Z source: APNIC rpki-ov-state: valid route6: 2001:df1:23c0::/48 origin: AS139642 descr: Md Fazlul Kader House-10,Road-01,Line-06 Block-A, Halishahar Chittagong mnt-by: MAINT-SMARTLINK-BD last-modified: 2022-08-16T07:37:00Z source: APNIC rpki-ov-state: valid