These entries are queried from radb.net using whois, you can try my project getting these.
:AS63987 route: 103.58.108.0/23 descr: route object for 103.58.108.0/23 country: BD origin: AS63987 mnt-lower: MAINT-DSEL-BD mnt-routes: MAINT-DSEL-BD mnt-by: MAINT-DSEL-BD last-modified: 2015-06-07T07:32:20Z source: APNIC rpki-ov-state: valid route: 103.58.108.0/24 descr: route object for 103.58.108.0/24 country: BD origin: AS63987 mnt-lower: MAINT-DSEL-BD mnt-routes: MAINT-DSEL-BD mnt-by: MAINT-DSEL-BD last-modified: 2015-06-07T07:32:20Z source: APNIC rpki-ov-state: valid route: 103.58.109.0/24 descr: route object for 103.58.109.0/24 country: BD origin: AS63987 mnt-lower: MAINT-DSEL-BD mnt-routes: MAINT-DSEL-BD mnt-by: MAINT-DSEL-BD last-modified: 2015-06-07T07:32:21Z source: APNIC rpki-ov-state: valid