This aircraft was ordered on 26 October 2007 from Airbus by ILFC. ILFC was acquired by AerCap on 14 May 2014, even before the very first A350 was delivered.
YET: the latest spreadsheet from Airbus states msn145 was delivered on 18 October 2017 to ILFC. It shows on the "deliveries" tab. Also on the "worldwide" and "leasing" tabs ILFC is shown with no orders, but one delivery.