These entries are queried from radb.net using whois, you can try my project getting these.
:AS58926 route: 103.248.236.0/22 descr: Banglanet, Internet Service Provider origin: AS58926 mnt-lower: MAINT-BANGLANET-BD mnt-routes: MAINT-BANGLANET-BD mnt-by: MAINT-BANGLANET-BD last-modified: 2013-05-30T07:06:24Z source: APNIC rpki-ov-state: valid route: 103.248.236.0/23 descr: Banglanet, Internet Service Provider origin: AS58926 country: BD mnt-lower: MAINT-BANGLANET-BD mnt-routes: MAINT-BANGLANET-BD mnt-by: MAINT-BANGLANET-BD last-modified: 2013-05-30T07:37:41Z source: APNIC rpki-ov-state: valid route: 103.248.236.0/24 descr: Banglanet, Internet Service Provider origin: AS58926 country: BD mnt-lower: MAINT-BANGLANET-BD mnt-routes: MAINT-BANGLANET-BD mnt-by: MAINT-BANGLANET-BD last-modified: 2013-05-30T07:36:08Z source: APNIC rpki-ov-state: valid route: 103.248.237.0/24 descr: Banglanet, Internet Service Provider origin: AS58926 country: BD mnt-lower: MAINT-BANGLANET-BD mnt-routes: MAINT-BANGLANET-BD mnt-by: MAINT-BANGLANET-BD last-modified: 2013-05-30T07:36:46Z source: APNIC rpki-ov-state: valid route: 103.248.238.0/23 descr: Banglanet, Internet Service Provider origin: AS58926 country: BD mnt-lower: MAINT-BANGLANET-BD mnt-routes: MAINT-BANGLANET-BD mnt-by: MAINT-BANGLANET-BD last-modified: 2013-05-30T07:38:02Z source: APNIC rpki-ov-state: valid route: 103.248.238.0/24 descr: Banglanet, Internet Service Provider origin: AS58926 country: BD mnt-lower: MAINT-BANGLANET-BD mnt-routes: MAINT-BANGLANET-BD mnt-by: MAINT-BANGLANET-BD last-modified: 2013-05-30T07:37:53Z source: APNIC rpki-ov-state: valid route: 103.248.239.0/24 descr: Banglanet, Internet Service Provider origin: AS58926 country: BD mnt-lower: MAINT-BANGLANET-BD mnt-routes: MAINT-BANGLANET-BD mnt-by: MAINT-BANGLANET-BD last-modified: 2013-05-30T07:37:22Z source: APNIC rpki-ov-state: valid