Update the wireless phone number linked to your AT&T ID
You already have an AT&T ID if you manage your AT&T WirelessSM account online. For AT&T NumberSync®, use the ID listed on your account profile.
Get info about NumberSync settings issues
- Don’t see the number you want to sync? Learn how to assign your wireless phone number to your ID.
- If you have AT&T Connected CarTM, use the same ID and password for your smartphone number to set up and use NumberSync. This ensures calls sent to and from a synced device are linked to the correct AT&T smartphone number.
FYI: NumberSync isn’t available for AT&T Prepaid®.
Sync a device to an AT&T phone number on a different account
If your watch is on a different AT&T account than your smartphone, use the AT&T ID and password for the smartphone account to sync them.