These entries are queried from radb.net using whois, you can try my project getting these.
:AS198548 route: 141.138.4.0/24 descr: Overseas Trade Co. Ltd. d.o.o. origin: AS198548 mnt-by: ISKON created: 2012-06-13T13:53:01Z last-modified: 2012-06-13T13:53:01Z 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