These entries are queried from radb.net using whois, you can try my project getting these.
:AS135653 route6: 2001:df6:600::/48 origin: AS135653 descr: URSYS PTY. LTD. Level 1, 461 Parramatta rd mnt-by: MAINT-URSYS-AU last-modified: 2017-05-29T03:14:28Z source: APNIC rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source