These entries are queried from radb.net using whois, you can try my project getting these.
:AS51326 route: 46.28.168.0/21 descr: W3TEL route origin: AS51326 mnt-by: w3tel-mnt created: 2010-08-28T17:42:39Z last-modified: 2010-08-28T17:42:39Z 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 route6: 2a02:5360::/32 descr: W3TEL IPV6 Route origin: AS51326 mnt-by: w3tel-mnt created: 2014-09-30T20:01:25Z last-modified: 2014-09-30T20:01:25Z 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 route6: 2a02:5360::/48 origin: AS51326 mnt-by: w3tel-mnt created: 2016-06-05T15:28:35Z last-modified: 2016-06-05T15:28:35Z 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