These entries are queried from radb.net using whois, you can try my project getting these.
:AS139473 route: 103.141.208.0/24 origin: AS139473 descr: Shebatel Network Ltd 85/1/A Purana Paltan Lane 4th fl mnt-by: MAINT-SHEBATEL-BD last-modified: 2019-11-27T18:18:55Z source: APNIC rpki-ov-state: valid