I think FL is more common then LI for Fürstentum Liechtenstein.
The ISO cod FL is used by Post and everywhere other. As i know LI is only used by TLD's.
I was just about to change it as the main ISO code really is 'GB'. What do you think about UK/GB?
Should we always go with the main ISO code (GB,LI) or with the most common code (UK,FL) ?