These entries are queried from radb.net using whois, you can try my project getting these.
:AS139904 route: 103.146.220.0/23 origin: AS139904 descr: Kloud Technologies Limited Venture Tower, Plot-3, Level-4, Bir Uttam A.K.Khandakar Road mnt-by: MAINT-KTL-BD last-modified: 2019-12-22T05:48:38Z source: APNIC rpki-ov-state: valid route: 103.146.220.0/24 origin: AS139904 descr: Kloud Technologies Limited Venture Tower, Plot-3, Level-4, Bir Uttam A.K.Khandakar Road mnt-by: MAINT-KTL-BD last-modified: 2019-12-22T05:48:39Z source: APNIC rpki-ov-state: valid route: 103.146.221.0/24 origin: AS139904 descr: Kloud Technologies Limited Venture Tower, Plot-3, Level-4, Bir Uttam A.K.Khandakar Road mnt-by: MAINT-KTL-BD last-modified: 2019-12-22T05:48:40Z source: APNIC rpki-ov-state: valid route: 103.164.90.0/24 descr: Kloud Technologies Limited Venture Tower, Plot-3, Level-4, Bir Uttam A.K.Khandakar Road origin: AS139904 mnt-by: MAINT-KTL-BD last-modified: 2021-03-18T06:34:00Z source: APNIC rpki-ov-state: valid route6: 2001:df2:7180::/48 origin: AS139904 descr: Kloud Technologies Limited Venture Tower, Plot-3, Level-4, Bir Uttam A.K.Khandakar Road mnt-by: MAINT-KTL-BD last-modified: 2019-12-23T05:08:42Z source: APNIC rpki-ov-state: valid