These entries are queried from radb.net using whois, you can try my project getting these.
:AS36056 route: 199.59.216.0/21 descr: ANTHC origin: AS36056 notify: sys.admin [at] acsalaska.net mnt-by: MAINT-ACS changed: tom.simes [at] acsalaska.net 20110208 #19:47:29Z source: RADB last-modified: 2023-11-13T15:41:15Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source