These entries are queried from radb.net using whois, you can try my project getting these.
:AS139787 route6: 2001:df1:fd80::/48 origin: AS139787 descr: Chongqing Caisan Technology Ltd. Internet industrial park no.17 mnt-by: MAINT-CAISAN-CN last-modified: 2021-08-24T07:43:21Z source: APNIC rpki-ov-state: valid