These entries are queried from radb.net using whois, you can try my project getting these.
:AS139629 route: 103.142.192.0/23 origin: AS139629 descr: Shamim Ahmed Titu, Mohammad Moniruzzaman 34/1-A, Shaheed Nazrul Islam Road Hatkhola, Flat-7C, 5th Floor, mnt-by: MAINT-SUN-BD last-modified: 2021-06-17T14:58:18Z source: APNIC rpki-ov-state: valid route: 103.142.192.0/24 origin: AS139629 descr: Shamim Ahmed Titu, Mohammad Moniruzzaman 34/1-A, Shaheed Nazrul Islam Road Hatkhola, Flat-7C, 5th Floor, mnt-by: MAINT-SUN-BD last-modified: 2021-06-17T14:58:21Z source: APNIC rpki-ov-state: valid route: 103.142.193.0/24 origin: AS139629 descr: Shamim Ahmed Titu, Mohammad Moniruzzaman 34/1-A, Shaheed Nazrul Islam Road Hatkhola, Flat-7C, 5th Floor, mnt-by: MAINT-SUN-BD last-modified: 2021-06-17T14:58:23Z source: APNIC rpki-ov-state: valid