These entries are queried from radb.net using whois, you can try my project getting these.
:AS132608 route: 103.248.204.0/22 descr: Mango Teleservices Limited (ISP) Police Plaza (7th Floor) country: BD notify: support [at] mango.com.bd mnt-by: MAINT-BD-MANGO-ROUTE origin: AS132608 last-modified: 2023-11-26T10:00:38Z source: APNIC rpki-ov-state: valid route: 103.248.204.0/23 origin: AS132608 descr: Mango Teleservices Limited Police Plaza ( 7th Floor ) mnt-by: MAINT-BD-MANGO-ROUTE last-modified: 2023-11-26T09:59:12Z source: APNIC rpki-ov-state: valid route: 103.248.204.0/24 descr: Mango ISP Customer origin: AS132608 mnt-by: MAINT-BD-MANGO-ROUTE last-modified: 2023-11-26T09:56:16Z source: APNIC rpki-ov-state: valid route: 103.248.205.0/24 descr: Mango ISP Customer origin: AS132608 mnt-by: MAINT-BD-MANGO-ROUTE last-modified: 2023-11-26T09:56:26Z source: APNIC rpki-ov-state: valid route: 103.248.206.0/23 origin: AS132608 descr: Mango Teleservices Limited Police Plaza ( 7th Floor ) mnt-by: MAINT-BD-MANGO-ROUTE last-modified: 2023-11-26T09:59:34Z source: APNIC rpki-ov-state: valid route: 103.248.206.0/24 descr: Mango ISP Customer origin: AS132608 mnt-by: MAINT-BD-MANGO-ROUTE last-modified: 2023-11-26T09:57:02Z source: APNIC rpki-ov-state: valid route: 103.248.207.0/24 descr: Mango ISP Customer origin: AS132608 mnt-by: MAINT-BD-MANGO-ROUTE last-modified: 2023-11-26T09:56:36Z source: APNIC rpki-ov-state: valid route: 114.130.4.0/24 origin: AS132608 descr: Mango Teleservices Limited Police Plaza Concord ( 7th Floor ), Tower-2, Road-144, Gulshan-1, mnt-by: MAINT-MANGOTELESERVICE-BD last-modified: 2022-12-01T06:46:39Z source: APNIC rpki-ov-state: valid route: 114.130.5.0/24 origin: AS132608 descr: Mango Teleservices Limited Police Plaza Concord ( 7th Floor ), Tower-2, Road-144, Gulshan-1, mnt-by: MAINT-MANGONET-BD last-modified: 2022-12-01T06:45:19Z source: APNIC rpki-ov-state: valid route: 114.130.8.0/24 origin: AS132608 descr: Mango Teleservices Limited 82 Mohakhali C/A ( 12th Floor ) mnt-by: MAINT-MANGOTELESERVICE-BD last-modified: 2022-09-18T08:12:36Z source: APNIC rpki-ov-state: valid route: 114.130.10.0/24 origin: AS132608 descr: Mango Teleservices Limited Police Plaza Concord ( 7th Floor ), Tower-2, Road-144, Gulshan-1, mnt-by: MAINT-MANGOTELESERVICE-BD last-modified: 2022-12-01T06:45:49Z source: APNIC rpki-ov-state: valid route: 114.130.31.0/24 origin: AS132608 descr: Mango Teleservices Limited Police Plaza Concord ( 7th Floor ), Tower-2, Road-144, Gulshan-1, mnt-by: MAINT-MANGOTELESERVICE-BD last-modified: 2022-12-06T15:03:31Z source: APNIC rpki-ov-state: valid route: 114.130.36.0/22 descr: Mango Teleservices Ltd.-ISP origin: AS132608 mnt-by: MAINT-BD-MANGO-ROUTE country: BD last-modified: 2021-08-09T05:34:31Z source: APNIC rpki-ov-state: valid route: 114.130.36.0/24 origin: AS132608 descr: Mango Teleservices Limited 82 Mohakhali C/A ( 12th Floor ) mnt-by: MAINT-MANGOTELESERVICE-BD last-modified: 2021-08-09T05:35:12Z source: APNIC rpki-ov-state: valid route: 114.130.37.0/24 origin: AS132608 descr: Mango Teleservices Limited 82 Mohakhali C/A ( 12th Floor ) mnt-by: MAINT-MANGOTELESERVICE-BD last-modified: 2021-08-09T05:35:08Z source: APNIC rpki-ov-state: valid route: 114.130.41.0/24 descr: Mango Teleservices, ISP route-object origin: AS132608 mnt-by: MAINT-BD-MANGO-ROUTE last-modified: 2021-08-10T18:41:02Z source: APNIC rpki-ov-state: valid route: 114.130.52.0/23 origin: AS132608 descr: Mango Teleservices Limited Police Plaza Concord ( 7th Floor ), Tower-2, Road-144, Gulshan-1, mnt-by: MAINT-MANGOTELESERVICE-BD last-modified: 2024-01-19T03:08:03Z source: APNIC rpki-ov-state: valid route: 114.130.52.0/24 origin: AS132608 descr: Mango Teleservices Limited Police Plaza Concord ( 7th Floor ), Tower-2, Road-144, Gulshan-1, mnt-by: MAINT-MANGOTELESERVICE-BD last-modified: 2024-01-19T03:08:09Z source: APNIC rpki-ov-state: valid route: 114.130.53.0/24 origin: AS132608 descr: Mango Teleservices Limited Police Plaza Concord ( 7th Floor ), Tower-2, Road-144, Gulshan-1, mnt-by: MAINT-MANGOTELESERVICE-BD last-modified: 2024-01-19T03:08:13Z source: APNIC rpki-ov-state: valid route: 114.130.56.0/23 origin: AS132608 descr: Mango Teleservices Limited Police Plaza Concord ( 7th Floor ), Tower-2, Road-144, Gulshan-1, mnt-by: MAINT-MANGOTELESERVICE-BD last-modified: 2022-12-01T06:46:58Z source: APNIC rpki-ov-state: valid route: 114.130.58.0/24 origin: AS132608 descr: Mango Teleservices Limited Police Plaza Concord ( 7th Floor ), Tower-2, Road-144, Gulshan-1, mnt-by: MAINT-MANGOTELESERVICE-BD last-modified: 2022-12-01T06:47:13Z source: APNIC rpki-ov-state: valid route: 114.130.68.0/24 origin: AS132608 descr: Mango Teleservices Limited 82 Mohakhali C/A ( 12th Floor ) mnt-by: MAINT-MANGOTELESERVICE-BD last-modified: 2022-09-18T08:13:44Z source: APNIC rpki-ov-state: valid route: 114.130.71.0/24 origin: AS132608 descr: Mango Teleservices Limited Police Plaza Concord ( 7th Floor ), Tower-2, Road-144, Gulshan-1, mnt-by: MAINT-MANGOTELESERVICE-BD last-modified: 2022-12-01T06:47:31Z source: APNIC rpki-ov-state: valid route: 114.130.80.0/24 origin: AS132608 descr: Mango Teleservices Limited 82 Mohakhali C/A ( 12th Floor ) mnt-by: MAINT-MANGOTELESERVICE-BD last-modified: 2022-09-06T08:04:05Z source: APNIC rpki-ov-state: valid route: 114.130.81.0/24 origin: AS132608 descr: Mango Teleservices Limited Police Plaza Concord ( 7th Floor ), Tower-2, Road-144, Gulshan-1, mnt-by: MAINT-MANGOTELESERVICE-BD last-modified: 2022-12-01T06:46:24Z source: APNIC rpki-ov-state: valid route: 114.130.83.0/24 descr: Mango Teleservices Ltd-ISP descr: origin: AS132608 mnt-by: MAINT-BD-MANGO-ROUTE last-modified: 2020-09-01T17:39:48Z source: APNIC rpki-ov-state: valid route: 114.130.84.0/24 descr: Mango Teleservices Limited-ISP origin: AS132608 mnt-by: MAINT-BD-MANGO-ROUTE country: BD last-modified: 2022-09-06T06:33:28Z source: APNIC rpki-ov-state: valid route: 114.130.85.0/24 origin: AS132608 descr: Mango Teleservices Limited 82 Mohakhali C/A ( 12th Floor ) mnt-by: MAINT-MANGOTELESERVICE-BD last-modified: 2021-08-05T06:36:54Z source: APNIC rpki-ov-state: valid route: 114.130.86.0/24 origin: AS132608 descr: Mango Teleservices Limited 82 Mohakhali C/A ( 12th Floor ) mnt-by: MAINT-MANGOTELESERVICE-BD last-modified: 2022-09-06T08:07:03Z source: APNIC rpki-ov-state: valid route: 114.130.89.0/24 origin: AS132608 descr: Mango Teleservices Limited 82 Mohakhali C/A ( 12th Floor ) mnt-by: MAINT-MANGOTELESERVICE-BD last-modified: 2022-09-06T08:05:13Z source: APNIC rpki-ov-state: valid route: 114.130.92.0/24 origin: AS132608 descr: Mango Teleservices Limited 82 Mohakhali C/A ( 12th Floor ) mnt-by: MAINT-MANGOTELESERVICE-BD last-modified: 2022-09-06T08:06:26Z source: APNIC rpki-ov-state: valid route: 114.130.94.0/24 origin: AS132608 descr: Mango Teleservices Limited Police Plaza Concord ( 7th Floor ), Tower-2, Road-144, Gulshan-1, mnt-by: MAINT-MANGOTELESERVICE-BD last-modified: 2022-12-01T06:46:05Z source: APNIC rpki-ov-state: valid route: 114.130.95.0/24 origin: AS132608 descr: Mango Teleservices Limited 82 Mohakhali C/A ( 12th Floor ) mnt-by: MAINT-MANGOTELESERVICE-BD last-modified: 2022-09-06T08:05:50Z source: APNIC rpki-ov-state: valid route: 114.130.223.0/24 origin: AS132608 descr: Mango Teleservices Limited Police Plaza Concord ( 7th Floor ), Tower-2, Road-144, Gulshan-1, mnt-by: MAINT-BD-MANGO-ROUTE last-modified: 2023-11-11T07:11:59Z source: APNIC rpki-ov-state: valid route6: 2001:df1:5cc0::/48 origin: AS132608 descr: Minhazul Haque Ta-189/1, 4th Floor, Middle Badda, Dhaka-1212 mnt-by: MAINT-SYSSOLUTION-BD last-modified: 2022-11-02T10:20:37Z source: APNIC rpki-ov-state: valid route6: 2403:ec00:45::/48 origin: AS132608 descr: Mango Teleservices Limited Police Plaza Concord ( 7th Floor ), Tower-2, Road-144, Gulshan-1, mnt-by: MAINT-MANGONET-BD last-modified: 2022-12-01T06:45:33Z source: APNIC rpki-ov-state: valid