The area code (phone code) 06158 is assigned to 2 locations in Germany. Mainly you reach landlines in Riedstadt (Hessen).
|06158||Stockstadt am Rhein|
Note for calls from abroad: In addition to the German country code (+49 or 0049) you can omit the foregoing zero of the dialling code for Riedstadt. So you can dial +496158... and add the number of the phone line you want to reach.