These entries are queried from radb.net using whois, you can try my project getting these.
:AS14897 route: 64.129.124.0/24 descr: Purshe Kaplan Sterling Investments, Inc. origin: AS14897 mnt-by: MAINT-TVC changed: ip-admin [at] tvc-ip.com 20130221 source: ALTDB rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source