These entries are queried from radb.net using whois, you can try my project getting these.
:AS62698 route: 198.54.96.0/23 descr: Supply Frame, Inc. origin: AS62698 remarks: Proxy Object mnt-by: MAINT-NTTCOM-RA changed: ched [at] ntt.net 20160803 source: NTTCOM rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source