The term “00493 vorwahl” refers to the area code for the German city of Dresden. When calling a landline in Dresden from outside of Germany, the full number to dial would be 00493 followed by the local seven-digit phone number. For example, to call the Dresden city hall, you would dial 00493 550 10.
Area codes are used to route phone calls to the correct geographic location. They are typically three digits long, and they are assigned by the national telecommunications authority. In Germany, the Federal Network Agency is responsible for assigning area codes.
