These entries are queried from radb.net using whois, you can try my project getting these.
:AS397053 route: 199.250.255.0/24 descr: NFP Corp origin: AS397053 mnt-by: MAINT-AS27506 changed: jmcnallie [at] lightower.com 20180911 source: RADB last-modified: 2023-11-13T15:54:41Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source