Good to know: When you change numbers, your voicemail changes too. We can’t transfer your messages, so be sure to write down any important messages before you switch.
How to change your wireless number:
- Log in to your myAT&T account overview.
- Scroll to Manage wireless and select the device you want to change the number for.
- Choose My wireless device options, then Change my number.
We'll prorate your monthly service charge between your old and new numbers.