These entries are queried from radb.net using whois, you can try my project getting these.
:AS139647 route: 103.143.34.0/23 descr: Alpha Sattelite origin: AS139647 mnt-by: MAINT-ALPHASATTELITE-BD remarks: IP for Alpha Sattelite last-modified: 2019-10-22T16:12:41Z country: BD source: APNIC rpki-ov-state: valid route: 103.143.34.0/24 descr: Alfa Sattelite origin: AS139647 mnt-by: MAINT-ALPHASATTELITE-BD country: BD remarks: IP for Alfa Sattelite last-modified: 2019-10-06T15:32:44Z source: APNIC rpki-ov-state: valid route: 103.143.35.0/24 descr: Alpha Sattelite origin: AS139647 mnt-by: MAINT-ALPHASATTELITE-BD remarks: IP for Alpha Sattelite last-modified: 2019-10-06T15:35:43Z source: APNIC rpki-ov-state: valid route6: 2001:df1:6a80::/48 descr: IPv6 route Object for 2001:DF1:6A80::/48 origin: AS139647 mnt-by: MAINT-ALPHASATTELITE-BD country: BD last-modified: 2019-11-01T06:07:13Z source: APNIC rpki-ov-state: valid