Area Codes Argentina The Area Codes of Argentina: City/Town or Region Area code 1.La Pampa02952.La Pampa023313.La Pampa023334.La Pampa023345.La Pampa023356.La Pampa023387.La Plata, provincia de Buenos Aires02218.La Rioja03809.La Rioja0382110.La Rioja0382511.La Rioja0382612.La Rioja0382713.Lincoln, provincia de Buenos Aires0235514.Los Toldos, provincia de Buenos Aires0235815.Luján, provincia de Buenos Aires02323