These entries are queried from radb.net using whois, you can try my project getting these.
:AS141362 route: 203.159.77.0/24 origin: AS141362 descr: Thai Network Information Center Foundation 159 Pichai Rd. Thanon Nakhon Chai Si mnt-by: MAINT-TNICF-TH last-modified: 2020-11-20T09:31:47Z source: APNIC rpki-ov-state: valid route6: 2405:3340:e000::/48 origin: AS141362 descr: Thai Network Information Center Foundation 159 Pichai Rd. Thanon Nakhon Chai Si mnt-by: MAINT-TNICF-TH last-modified: 2020-11-23T04:38:42Z source: APNIC rpki-ov-state: valid