These entries are queried from radb.net using whois, you can try my project getting these.
:AS138954 route: 103.137.162.0/24 origin: AS138954 descr: Delstar Network Service mnt-by: MAINT-DELSTAR-NETWORK-BD last-modified: 2023-02-26T14:35:12Z source: APNIC rpki-ov-state: valid