These entries are queried from radb.net using whois, you can try my project getting these.
:AS133151 route: 103.247.204.0/24 origin: AS133151 descr: Garena Prefixes admin-c: matahomc tech-c: noc notify: noc [at] seagroup.com notify: matahomc [at] seagroup.com mnt-by: MAINT-AS137831 changed: matahomc [at] seagroup.com 20200105 #02:22:04Z source: RADB last-modified: 2023-11-13T15:59:35Z rpki-ov-state: valid route: 103.247.204.0/24 origin: AS133151 descr: Garena Online Pte Ltd 1 FUSIONOPOLIS PLACE #17-10, Galaxis Singapore mnt-by: MAINT-AS-GARENA-SG last-modified: 2020-01-06T02:19:35Z source: APNIC rpki-ov-state: valid route: 103.247.204.0/24 descr: SEA IX origin: AS133151 member-of: remarks: notify: noc [at] sea.com notify: matahomc [at] sea.com notify: cheahch [at] sea.com mnt-by: MAINT-AS137831 changed: matahomc [at] sea.com 20211014 source: NTTCOM last-modified: 2021-10-14T05:23:42Z rpki-ov-state: valid