These entries are queried from radb.net using whois, you can try my project getting these.
:AS397722 route: 151.210.17.0/24 descr: Bluestem Brands, Inc - East origin: AS397722 mnt-by: MNT-BB-70 changed: ARIN-Admin [at] bluestembrands.com 20190213 source: ARIN rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source