The area code (phone code) 08337 is assigned to 3 locations in Germany. Mainly you reach landlines in Altenstadt, Iller (Bayern).
|08337||Kellmünz an der Iller|
|08337||Osterberg bei Illertissen|
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 Altenstadt, Iller. So you can dial +498337... and add the number of the phone line you want to reach.