These entries are queried from radb.net using whois, you can try my project getting these.
:AS141434 route: 103.159.4.0/24 origin: AS141434 descr: Hafez Ahmed Khan House No 79, 1st Floor, Block A, Bir Uttam Ziaur Rahman descr: NL Solution mnt-by: MAINT-NLSOLUTION-BD last-modified: 2021-04-26T15:56:23Z mnt-routes: MAINT-NLSOLUTION-BD source: APNIC rpki-ov-state: valid