These entries are queried from radb.net using whois, you can try my project getting these.
:AS139030 route: 103.138.174.0/23 descr: CNet Communication origin: AS139030 mnt-by: MAINT-CNETCOMMUNICATION-BD country: BD mnt-routes: MAINT-CNETCOMMUNICATION-BD mnt-lower: MAINT-CNETCOMMUNICATION-BD last-modified: 2019-05-06T08:23:01Z source: APNIC rpki-ov-state: valid route: 103.138.174.0/24 descr: CNet Communication origin: AS139030 mnt-by: MAINT-CNETCOMMUNICATION-BD country: BD mnt-routes: MAINT-CNETCOMMUNICATION-BD mnt-lower: MAINT-CNETCOMMUNICATION-BD last-modified: 2019-05-06T08:23:11Z source: APNIC rpki-ov-state: valid route: 103.138.175.0/24 descr: CNet Communication origin: AS139030 mnt-by: MAINT-CNETCOMMUNICATION-BD country: BD mnt-routes: MAINT-CNETCOMMUNICATION-BD mnt-lower: MAINT-CNETCOMMUNICATION-BD last-modified: 2019-05-06T08:23:20Z source: APNIC rpki-ov-state: valid