The Area Codes of Luxembourg: City/Town or RegionArea code 1.Mertzig/Wahl2688 (+352 2688) 2.Mertzig/Wahl2788 (+352 2788) 3.Mertzig/Wahl88 (+352 88) 4.Mertzig/Wahl2488 (+352 2488) 5.Mondorf-les-Bains/Bascharage/Noerdange/Remich2723 (+352 2723) 6.Mondorf-les-Bains/Bascharage/Noerdange/Remich23 (+352 23) 7.Mondorf-les-Bains/Bascharage/Noerdange/Remich2423 (+352 2423) 8.Mondorf-les-Bains/Bascharage/Noerdange/Remich2623 (+352 2623)