Luxembourg is a small country in Europe that can be easily reached from El Salvador. The country is well known for its financial sector and its beautiful countryside. To call Luxembourg from El Salvador, you will need to dial 00 followed by 352, the country code for Luxembourg. The area code for Luxembourg is also 52, so you will need to include this when dialing. If you are calling a landline in Luxembourg, the number will be preceded by 0, while mobile numbers will start with +352.