I'm completely with John Miller on this 'DSA' thing. If you look at his location you will see why he queried it. My wife says you're just showing off your knowledge by using the codes, rather than simply telling people where the hell the place is. Most of us in the UK know the UK codes, but I and, I'm sure, many others would find it more than useful if people simply told us that it was at Stockholm, or Arlanda, or Frankfurt Hahne, etc.etc.,....................instead of us having to look up mysterious codes. Simples!!!