These entries are queried from radb.net using whois, you can try my project getting these.
:AS137221 route: 103.105.74.0/23 origin: AS137221 descr: Standard Group Limited Civil Engineers Bhaban 69, Mohakhali C/A Dhaka 1212, Bangladesh, mnt-by: MAINT-STANDARD-GROUP-BD last-modified: 2017-12-27T10:31:49Z source: APNIC rpki-ov-state: valid route: 103.105.74.0/24 origin: AS137221 descr: Standard Group Limited Civil Engineers Bhaban 69, Mohakhali C/A Dhaka 1212, Bangladesh, mnt-by: MAINT-STANDARD-GROUP-BD last-modified: 2017-12-27T10:32:22Z source: APNIC rpki-ov-state: valid route: 103.105.75.0/24 country: BD origin: AS137221 descr: Standard Group Limited Civil Engineers Bhaban 69, Mohakhali C/A Dhaka 1212, Bangladesh, mnt-by: MAINT-STANDARD-GROUP-BD last-modified: 2017-12-27T10:35:38Z source: APNIC rpki-ov-state: valid