The Islamic Cultural Centre of the Grand-Duchy of Luxembourg (Centre Culturel Islamique du Grand-Duch de Luxembourg (CCIL), in Mamer (2, rte d?Arlon, L-8210 Mamer) is the oldest (founded in February 1984) and the most important of the Muslim organisations. A regional branch of this centre was established on 1 February 2007 in Wiltz. It has about 600 paying members of 30 different nationalities, particularly Bosnians (2,500 people when their families are included).