These entries are queried from radb.net using whois, you can try my project getting these.
:AS32113 route: 208.73.168.0/21 descr: Lefrak Route Object origin: AS32113 mnt-by: LEFRAK-MNT changed: ksayasith [at] lefrak.com 20070123 source: LEVEL3 rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 209.244.172.0/24 descr: Lefrak Route Object origin: AS32113 mnt-by: LEFRAK-MNT changed: paul.zummo [at] level3.com 20040608 source: LEVEL3 rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source