These entries are queried from radb.net using whois, you can try my project getting these.
:AS41992 route: 193.34.152.0/23 descr: Si2 Network origin: AS41992 mnt-by: SI2-MNT created: 2007-01-17T13:52:20Z last-modified: 2017-01-08T18:35:09Z 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: valid