Reference number calculator

Denne siden finnes ikke på ditt språk og vises derfor på engelsk.

The minimum length of a reference number is four characters (basis 3 characters + control number) and the maximum length is 20 characters (19 + 1).

Fill in the fields requested by the calculator and you get a list of the reference numbers.

The function 'international references' creates RF references for international use based on a Finnish reference number (choice Y = yes, choice N = no).