These entries are queried from radb.net using whois, you can try my project getting these.
:AS56750 route: 91.227.90.0/24 descr: CLINICA POLISANO SRL origin: AS56750 mnt-by: CLINICA-POLISANO-MNT created: 2017-01-02T13:25:41Z last-modified: 2017-01-02T13:25:41Z 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