These entries are queried from radb.net using whois, you can try my project getting these.
:AS61983 route: 91.220.17.0/24 descr: Instytut Meteorologii i Gospodarki Wodnej - Panstwowy Instytut Badawcz origin: AS61983 mnt-by: TPNET created: 2014-04-03T09:28:31Z last-modified: 2014-04-03T09:28:31Z 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