Opening hours
The DUO Info Line is available on weekdays from 9 a.m. to 5 p.m. The best time to reach us is between 9 a.m. and 11 a.m.
Phone number
Make sure you have your Citizen Service Number ('burgerservicenummer' or 'BSN') to hand. If you would like to request information about someone else, you must have the proper authorisation.
Making changes
Changes can't be made via the telephone.