These entries are queried from radb.net using whois, you can try my project getting these.
:AS139834 route: 103.145.232.0/23 origin: AS139834 descr: Syed Md. Oli Ullah Bappy Kobarsthan Road,East Dandabor ,Ashulia.Savar,Dhaka. mnt-by: MAINT-SAVARNETCITY-BD last-modified: 2019-12-17T16:20:13Z source: APNIC rpki-ov-state: valid route: 103.145.232.0/24 origin: AS139834 descr: Syed Md. Oli Ullah Bappy Kobarsthan Road,East Dandabor ,Ashulia.Savar,Dhaka. mnt-by: MAINT-SAVARNETCITY-BD last-modified: 2019-12-17T16:20:48Z source: APNIC rpki-ov-state: valid route: 103.145.233.0/24 origin: AS139834 descr: Syed Md. Oli Ullah Bappy Kobarsthan Road,East Dandabor ,Ashulia.Savar,Dhaka. mnt-by: MAINT-SAVARNETCITY-BD last-modified: 2019-12-17T16:21:14Z source: APNIC rpki-ov-state: valid