The opening of the second phase of the Line 3 extension towards Piraeus, in October 2022, added two new stations to the network (Dimotiko Theatro and Maniatika), bringing the total to 66.
[3] Listed for each of the 66 stations are the lines serving it, the local authority in which it is located, and the date when it opened.
The following stations have a different layout: There are six park and ride facilities: four are managed by STASY, and two by Elliniko Metro.
[29][30][31] The 240-space car park for Katechaki, operated by Elliniko Metro, was closed due to the construction of Line 4.
Akadimia will be a standalone station, but there will be a direct tunnel connection with Line 2 at Panepistimio, under Patriarch Gregory V Street.