These entries are queried from radb.net using whois, you can try my project getting these.
:AS134790 route: 103.109.52.0/22 origin: AS134790 descr: United International University Satarkul MerulKhola, Madani Avenue, Satarkul, Badda mnt-by: MAINT-UIU-BD last-modified: 2018-04-28T07:11:03Z source: APNIC rpki-ov-state: valid route: 103.109.52.0/23 origin: AS134790 descr: United International University Satarkul MerulKhola, Madani Avenue, Satarkul, Badda mnt-by: MAINT-UIU-BD last-modified: 2018-04-28T07:11:03Z source: APNIC rpki-ov-state: valid route: 103.109.52.0/24 origin: AS134790 descr: United International University Satarkul MerulKhola, Madani Avenue, Satarkul, Badda mnt-by: MAINT-UIU-BD last-modified: 2018-04-28T07:11:03Z source: APNIC rpki-ov-state: valid route: 103.109.53.0/24 origin: AS134790 descr: United International University Satarkul MerulKhola, Madani Avenue, Satarkul, Badda mnt-by: MAINT-UIU-BD last-modified: 2018-04-28T07:11:04Z source: APNIC rpki-ov-state: valid route: 103.109.54.0/23 origin: AS134790 descr: United International University Satarkul MerulKhola, Madani Avenue, Satarkul, Badda mnt-by: MAINT-UIU-BD last-modified: 2018-04-28T07:11:04Z source: APNIC rpki-ov-state: valid route: 103.109.54.0/24 origin: AS134790 descr: United International University Satarkul MerulKhola, Madani Avenue, Satarkul, Badda mnt-by: MAINT-UIU-BD last-modified: 2018-04-28T07:11:04Z source: APNIC rpki-ov-state: valid route: 103.109.55.0/24 origin: AS134790 descr: United International University Satarkul MerulKhola, Madani Avenue, Satarkul, Badda mnt-by: MAINT-UIU-BD last-modified: 2018-04-28T07:11:04Z source: APNIC rpki-ov-state: valid