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A DUF number is a twelve-digit number that is assigned to everyone who applies for residence in Norway.
- The DUF number is the applicant's registration number in the UDI's computer system.
- The number has 12 digits and starts with the year when you applied for the first time (for example: 2012 586975 61).
- You will keep the same DUF number if you apply again.
- You will find your DUF number on the case documents from the UDI. If you have a residence card, you will find your DUF number there as well.