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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
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
. NumberSync isn’t available for AT&T PREPAID
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
page and follow the prompts.
Create an ID
Create an AT&T user ID
Add wireless number
Follow the prompts to create your ID.
Last updated: December 7, 2022
Looking for more info?
Manage the wireless number for your user ID
Resolve NumberSync for wearables syncing issues
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