These entries are queried from radb.net using whois, you can try my project getting these.
:AS397661 route: 63.246.138.0/24 origin: AS397661 mnt-by: MNT-PFF-18 descr: 3214 25th Street Columbus NE 68601 United States tech-c: SYSTE683-ARIN admin-c: SYSTE683-ARIN source: ARIN created: 2020-06-11T11:55:05Z last-modified: 2020-06-11T11:55:05Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source