The area code (phone code) 037431 is assigned to 3 locations in Germany. Mainly you reach landlines in Syrau (Sachsen).
|037431||Leubnitz bei Plauen|
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 Syrau. So you can dial +4937431... and add the number of the phone line you want to reach.