717 may refer to: 717 BC: a year. 717: a year. Boeing 717 Boeing 717, an airliner, the former MD-95 Boeing 720, an airliner designated as the 717 during development Boeing C-135 Stratolifter, internal Boeing product code of 717 717 (number): a number. Area code 717, for telephones in southern Pennsylvania under the North American Numbering Plan British Rail Class 717, a train for services from London's Moorgate station