These entries are queried from radb.net using whois, you can try my project getting these.
:AS32998 route: 23.152.64.0/24 descr: Update Bgp MimComm origin: AS32998 mnt-by: TLSN-MNT changed: jrobinson2524 [at] gmail.com 20200519 source: LEVEL3 rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source