These entries are queried from radb.net using whois, you can try my project getting these.
:AS64065 route: 103.19.36.0/24 descr: NRBGBL origin: AS64065 mnt-by: MAINT-NRBGBL-BD mnt-routes: MAINT-NRBGBL-BD country: BD last-modified: 2022-07-26T10:46:20Z source: APNIC rpki-ov-state: valid route: 103.88.136.0/23 descr: NRBGBL - NEW CIDR country: BD mnt-by: MAINT-NRBGBL-BD mnt-routes: MAINT-NRBGBL-BD mnt-lower: MAINT-NRBGBL-BD origin: AS64065 last-modified: 2017-03-22T06:50:39Z source: APNIC rpki-ov-state: valid route: 103.88.136.0/24 descr: NRBGBL - NEW CIDR country: BD mnt-by: MAINT-NRBGBL-BD mnt-routes: MAINT-NRBGBL-BD mnt-lower: MAINT-NRBGBL-BD origin: AS64065 last-modified: 2017-03-22T06:50:39Z source: APNIC rpki-ov-state: valid route: 103.88.137.0/24 descr: NRBGBL - NEW CIDR country: BD mnt-by: MAINT-NRBGBL-BD mnt-routes: MAINT-NRBGBL-BD mnt-lower: MAINT-NRBGBL-BD origin: AS64065 last-modified: 2017-03-22T06:50:39Z source: APNIC rpki-ov-state: valid