These entries are queried from radb.net using whois, you can try my project getting these.
:AS64005 route: 103.228.200.0/24 descr: Route Object for 103.228.200.0/24 origin: AS64005 country: BD mnt-lower: MAINT-KK-BD mnt-routes: MAINT-KK-BD mnt-by: MAINT-KK-BD last-modified: 2015-11-25T12:33:48Z source: APNIC rpki-ov-state: valid route6: 2001:df4:3800::/48 origin: AS64005 descr: KaritKarma Limited 460/A Road 6, Avenue 7 mnt-by: MAINT-KK-BD last-modified: 2019-09-30T20:16:40Z source: APNIC rpki-ov-state: valid