The aircraft Saint-Exupéry was flying when he crashed in the Sahara was a Caudron C.630 Simoun, Serial Number 7042, with the French registration F-ANRY, with 'F' being the international designator for France, and the remainder being derived from 'ANtoine de saint-exupéRY'.
The crash site is thought to have been near the Wadi Natrun valley, close to the Nile Delta.