These entries are queried from radb.net using whois, you can try my project getting these.
:AS41819 route: 89.31.248.0/24 origin: AS41819 mnt-by: JP62-MNT mnt-by: DOX-MNT created: 2020-02-24T15:25:14Z last-modified: 2020-02-24T15:25:14Z source: RIPE remarks: **************************** remarks: * THIS OBJECT IS MODIFIED remarks: * Please note that all data that is generally regarded as personal remarks: * data has been removed from this object. remarks: * To view the original object, please query the RIPE Database at: remarks: * http://www.ripe.net/whois remarks: **************************** rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source