Showing Content for | Change your ZIP Code

Enter another ZIP to see info from a different area. X | `>`

!We can't find that ZIP Code. Try again.

Set up your ID for NumberSync

To sync your smartphone with a compatible NumberSync device, sign in with the user ID for your wireless number.


Use your ID with NumberSync

Heads up: Each wireless number on your account that uses NumberSync should have its own ID. This ensures that all calls sent to and from a synced device are linked to the right number.
  • You already have a user ID if you manage your wireless account online. For NumberSync, use the ID listed on your online profile. NumberSync isn’t available for AT&T PREPAIDSM.
  • Have an ID that isn’t linked to your wireless number yet? Learn how to assign your wireless number to your ID.
  • Not sure what your ID is? Go to the Forgot ID page and follow the prompts.

Create an ID

  1. Create an AT&T user ID.
  2. Select Add wireless number.
  3. Follow the prompts to create your ID.
Last updated: July 1, 2020

Did you get the help you needed?

Great! We're so glad we could help.

We're sorry that didn't solve your issue.

Thanks for your feedback!