Back to home

I received an error message saying that the mobile number I provided is already registered and cannot be used for Singpass with my account. What should I do?

Mobile number already registered


Updated by SINGPASS 67 found this helpful

For security reasons, each mobile number can only be linked to one Singpass account at any point in time.

If you are seeing an error message while updating your mobile number, it means that the mobile number is currently registered to another Singpass account.


If this mobile number belongs to you and you would like to use it for your Singpass account, please contact our support team. We will assist you with the necessary verification and guide you through the next steps to update your mobile number securely.

Related questions

Need more help?

Describe your issues to us.

Contact us