These entries are queried from radb.net using whois, you can try my project getting these.
:AS399962 route: 206.220.160.0/22 descr: CCECA origin: AS399962 mnt-by: TLSN-MNT changed: jrobinson2524 [at] gmail.com 20220111 source: LEVEL3 rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source