Managing MyAT&T business phone lines

If this additional line has a separate bill than your main line, you will need to add this new telephone number to your myAT&T for Business.

To add another account to your myAT&T for Business:

1. Sign in to your myAT&T for Business with your current User ID and Password.
   
2. Select the View PROFILE link, found in the top navigation area.
   
3. Select the Account users tabs.
   
4. Enter your new information and select Submit.
   

Note: An online registration code is required to Add a new account. You will have an opportunity to request the online registration code once you have clicked the Add An Account link.