These entries are queried from radb.net using whois, you can try my project getting these.
:AS33136 route: 216.47.0.0/20 origin: AS33136 descr: Proxy for Ozark Fiber mnt-by: MAINT-BLUEBIRD changed: lloyd.mcdonald [at] bluebirdnetwork.com 20230406 #20:16:46Z source: RADB last-modified: 2023-11-13T16:15:41Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 216.47.16.0/21 origin: AS33136 descr: Proxy for Ozark Fiber mnt-by: MAINT-BLUEBIRD changed: daniel.johnston [at] bluebirdnetwork.com 20230619 #14:33:10Z source: RADB last-modified: 2023-11-13T16:17:30Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source