These entries are queried from radb.net using whois, you can try my project getting these.
:AS45962 route: 203.56.176.0/24 descr: JCU Singapore origin: AS45962 mnt-by: MAINT-ASAARNET changed: nobody [at] aarnet.edu.au 20091130 source: RADB last-modified: 2023-11-13T15:40:32Z rpki-ov-state: valid