European Postal Codes

Belgium:

Ireland:

The Post Code field accepts seven characters in two groups. The two groups of characters must be separated by a space, not a dash.

The letters B, G, I, J, L, O, Q, S, U and Z are not used.

• The first group of 3 characters always consists of oneletter followed by two   numbers (0-9). The third character cannot be W.
• The latter four characters must be one number (0-9) followed by four letters.

Luxembourg:

Netherlands:

• The first group of 4 characters always consists of numbers (0-9)  
• The latter two characters must be two uppercase letters. The combinations SS, SD and SA are not used.

Norway:

The Post Code field accepts a sequence of four numbers.

Finland/France/Spain:

Sweden:

United Kingdom:

The Post Code field accepts six or seven characters in two groups. The two groups of characters must be separated by a space, not a dash. The first group can consist of three or four characters. 

The letters C, I, K, M, O and V are not used.

France:

The Post Code field is always a sequence of five numbers.

• The two first numbers (from 01 to 99) indicate the French Department : i.e. : 06 for Alpes-Maritimes
• The three last numbers (from 000 to 999) indicate the city number in the Department : i.e. : 000 For Nice. (000 indicates the Main city of the Department called "Préfecture")