These entries are queried from radb.net using whois, you can try my project getting these.
:AS59452 route: 91.241.45.0/24 descr: Customized InformSystems origin: AS59452 mnt-by: MNT-ZIS created: 2012-08-02T20:17:06Z last-modified: 2013-04-30T16:04:53Z 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