GN 01734.315 Facts About the Luxembourg Registration Number
When Luxembourg centralized their coverage records in 1970, everyone was assigned a “registration number”. Since then, a registration number is assigned when an individual starts working.
If someone files for Luxembourg benefits and doesn't have a registration number, Luxembourg assigns a number.
B. Description of the Luxembourg registration number
The Luxembourg registration number consists of 11 digits which are assigned as follows:
Digits 1-4 represent the year of birth;
Digits 5-6, month of birth;
Digits 7-8, day of birth; and
Digits 9-11 are a control number that is assigned to identify persons born on the same day.