A-23 is a new highway, which follows the same route of two national roads, the N-234 between Sagunto and Daroca - Retascón, and the N-330 between Retascón and Jaca.
A-23 is a newly built highway that follows the same route as two national roads: the N-234 between Sagunto and Daroca - Retascón, and the N-330 between Retascón and Jaca.