These entries are queried from radb.net using whois, you can try my project getting these.
:AS132602 route: 103.16.152.0/22 origin: AS132602 descr: Bangladesh Submarine Cable Company Limited (BSCCL) 7th Floor, 191, Tejgaon Gulshan Link Road mnt-by: MAINT-BANGLADESH-BD last-modified: 2022-07-12T09:30:18Z source: APNIC rpki-ov-state: valid route: 103.16.152.0/24 descr: BSCCL Route Object origin: AS132602 mnt-by: MAINT-BANGLADESH-BD country: BD mnt-lower: MAINT-BANGLADESH-BD mnt-routes: MAINT-BANGLADESH-BD last-modified: 2015-09-01T11:13:38Z source: APNIC rpki-ov-state: valid route: 103.16.153.0/24 origin: AS132602 descr: Bangladesh Submarine Cable Company Limited (BSCCL) 7th Floor, 191, Tejgaon Gulshan Link Road mnt-by: MAINT-BANGLADESH-BD last-modified: 2022-07-01T11:22:02Z source: APNIC rpki-ov-state: valid route: 103.16.154.0/23 origin: AS132602 descr: Bangladesh Submarine Cable Company Limited (BSCCL) 7th Floor, 191, Tejgaon Gulshan Link Road mnt-by: MAINT-BANGLADESH-BD last-modified: 2019-09-09T05:08:14Z source: APNIC rpki-ov-state: valid route: 103.16.154.0/24 descr: BSCCL Route Object origin: AS132602 mnt-by: MAINT-BANGLADESH-BD last-modified: 2015-09-01T11:21:19Z source: APNIC rpki-ov-state: valid route: 103.16.155.0/24 descr: BSCCL Route Object origin: AS132602 mnt-by: MAINT-BANGLADESH-BD last-modified: 2015-09-01T11:22:41Z source: APNIC rpki-ov-state: valid route: 114.130.75.0/24 origin: AS132602 descr: Mango Teleservices Limited 82 Mohakhali C/A ( 12th Floor ) mnt-by: MAINT-MANGOTELESERVICE-BD last-modified: 2021-08-05T06:36:58Z source: APNIC rpki-ov-state: valid route: 163.47.80.0/22 descr: BSCCL IPv4 Route Object origin: AS132602 mnt-by: MAINT-BANGLADESH-BD mnt-lower: MAINT-BANGLADESH-BD mnt-routes: MAINT-BANGLADESH-BD last-modified: 2015-02-25T11:41:20Z source: APNIC rpki-ov-state: valid route: 163.47.80.0/23 origin: AS132602 descr: Bangladesh Submarine Cable Company Limited (BSCCL) 7th Floor, 191, Tejgaon Gulshan Link Road mnt-by: MAINT-BANGLADESH-BD last-modified: 2019-09-09T05:08:39Z source: APNIC rpki-ov-state: valid route: 163.47.80.0/24 descr: BSCCL Route Object origin: AS132602 mnt-by: MAINT-BANGLADESH-BD last-modified: 2015-09-01T11:26:01Z source: APNIC rpki-ov-state: valid route: 163.47.81.0/24 descr: BSCCL-COX-PEERING-BLOCK origin: AS132602 mnt-by: MAINT-BANGLADESH-BD mnt-lower: MAINT-BANGLADESH-BD mnt-routes: MAINT-BANGLADESH-BD last-modified: 2015-02-25T11:40:31Z source: APNIC rpki-ov-state: valid route: 163.47.82.0/23 origin: AS132602 descr: Bangladesh Submarine Cable Company Limited (BSCCL) 7th Floor, 191, Tejgaon Gulshan Link Road mnt-by: MAINT-BANGLADESH-BD last-modified: 2019-09-09T05:08:39Z source: APNIC rpki-ov-state: valid route: 163.47.82.0/24 descr: BSCCL Route Object origin: AS132602 mnt-by: MAINT-BANGLADESH-BD last-modified: 2015-09-01T11:26:58Z source: APNIC rpki-ov-state: valid route: 163.47.83.0/24 descr: BSCCL Route Object origin: AS132602 mnt-by: MAINT-BANGLADESH-BD last-modified: 2015-09-01T11:28:29Z source: APNIC rpki-ov-state: valid route6: 2406:4b00::/32 descr: BSCCL IPv6 Route Object origin: AS132602 country: BD mnt-lower: MAINT-BANGLADESH-BD mnt-routes: MAINT-BANGLADESH-BD mnt-by: MAINT-BANGLADESH-BD last-modified: 2013-09-02T19:02:05Z source: APNIC rpki-ov-state: valid route6: 2406:4b00:a::/48 origin: AS132602 descr: Bangladesh Submarine Cable Company Limited (BSCCL) 7th Floor, 191, Tejgaon Gulshan Link Road mnt-by: MAINT-BANGLADESH-BD last-modified: 2022-07-01T11:27:31Z source: APNIC rpki-ov-state: valid