These entries are queried from radb.net using whois, you can try my project getting these.
:AS138158 route: 103.121.158.0/24 descr: CAT route object for Global Technology origin: AS138158 mnt-by: MAINT-THIX-CAT-TH changed: catdb [at] cat.net.th 20230920 source: RADB last-modified: 2023-11-13T16:18:37Z rpki-ov-state: valid route: 103.121.158.0/24 origin: AS138158 descr: Serge Pun & Associate (Myanmar) Ltd. The Campus, 1 Office Park,Rain Tree Drive, Pun Hlaing Estate, Hlaing Thayar Tsp,Yangon mnt-by: MAINT-SPAL-MM last-modified: 2018-08-30T09:07:36Z source: APNIC rpki-ov-state: valid route: 103.121.158.0/24 descr: Proxy-registered route object origin: AS138158 remarks: This is a HGC customer route-object remarks: which is being exported under this origin AS. remarks: remarks: This route object was created because no existing remarks: route object with the same origin was found. remarks: remarks: Please contact radb [at] hutchcity.com if you have any remarks: questions regarding this object. notify: radb [at] hutchcity.com mnt-by: MAINT-AS9304 changed: radb [at] hutchcity.com 20210715 source: NTTCOM last-modified: 2021-07-16T00:05:43Z rpki-ov-state: valid