Online I found gemeindeschluessel to be an eight digit number that identifies the local authority in Germany, like to register your address. The number apparently isn't often used, except to register an address. Hope this helps. Regards, Ellen **************Make your life easier with all your friends, email, and favorite sites in one place. Try it now. (http://www.aol.com/?optin=new-dp&icid=aolcom40vanity&ncid=emlcntaolcom00000010)