These entries are queried from radb.net using whois, you can try my project getting these.
:AS398881 route: 199.33.226.0/24 descr: SFG-IP origin: AS398881 mnt-by: TLSN-MNT changed: jrobinson2524 [at] gmail.com 20201202 source: LEVEL3 rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source