These entries are queried from radb.net using whois, you can try my project getting these.
:AS140546 route: 103.150.48.0/24 origin: AS140546 descr: United Enterprises & CO Ltd. Gulshan Center Point, House: 23-26, Road: 90, Gulshan-2, Dhaka-1212, Bangladesh, mnt-by: MAINT-UECL-BD last-modified: 2020-06-16T11:02:12Z source: APNIC rpki-ov-state: valid