Kennitala - Number Derivation

Number Derivation

Kennitölur are composed of ten digits. For a personal kennitala, the first six of these are the individual's date of birth in the format DDMMYY. The seventh and eighth digits are randomly chosen when the kennitala is allocated, the ninth is a check digit, and the tenth indicates the century of the individual's birth: '9' for 1900–1999, '0' for 2000 and beyond. Kennitölur are often written with a hyphen following the first six digits, e.g. 120174-3389.