Helperknapp Double click to activate the map Communal Administrations Helperknapp 2, rue de Hollenfels L-7481 Tuntange Phone : (+352) 28 80 40-1 Fax : (+352) 28 80 40-299 Monday to Friday: 08.00 - 11.30; Monday: 13.00 - 16.30 / the Population Office is open until 19.00 on Wednesdays (+352) 28 80 40-1 Helperknapp Path to Helperknapp Show on map