The area code (phone code) 04324 is assigned to 2 locations in Germany. Mainly you reach landlines in Brokstedt (Schleswig-Holstein).
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 Brokstedt. So you can dial +494324... and add the number of the phone line you want to reach.