The german phone code 038821 represents Lüdersdorf Meckl in Mecklenburg-Vorpommern.
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 Lüdersdorf Meckl. So you can dial +4938821... and add the number of the phone line you want to reach.