enter your phone order details. Then, follow the on-screen instructions to activate the SIM card. To activate your new phone with the SIM card, check out these steps: If you don't want to purchase ...

When you buy a new phone from AT&T Wireless ... Call 877-426-0525 for automated instructions. Have your ICCID and IMEI numbers ready. You cannot activate your AT&T SIM with an EID number over the ...

Here’s how to activate an eSIM ... devices as possible. The instructions below are focused on the iPhone 12 or later, though they may potentially apply to Android phones as well.