These entries are queried from radb.net using whois, you can try my project getting these.
:AS13583 route: 104.255.33.0/24 descr: InfoArmor origin: AS13583 mnt-by: PHOENIXNAP-MNT changed: brianmu [at] phoenixnap.com 20190822 source: LEVEL3 rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source