Here there is a junction with the N-501 and N-110. The N-403 heads 37 km to junction 112 km of the Autopista AP-6, N-VI and N-601.
At this point, there is an intersection with the N-501 and N-110. The N-403 extends for 37 km to junction 112 km of the Autopista AP-6, N-VI, and N-601.