These entries are queried from radb.net using whois, you can try my project getting these.
:AS397652 route: 216.70.31.0/24 origin: AS397652 descr: Created by CCI on behalf of {Shakopee Mdewakanton Sioux Community} mnt-by: MAINT-CCI changed: uttam.dhodary [at] consolidated.com 20200925 #21:34:34Z source: RADB last-modified: 2023-11-13T16:01:58Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source