These entries are queried from radb.net using whois, you can try my project getting these.
:AS57637 route: 91.233.247.0/24 descr: Government of the Khabarovsk Krai origin: AS57637 mnt-by: GOVKHABARK-MNT created: 2012-02-06T14:13:04Z last-modified: 2012-02-06T14:13:04Z 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