Activate your new cell phone, tablet, and smartwatch on the AT&T wireless network here.

Get help activating a new phone, tablet, smartwatch, wireless internet and SIM cards on the AT&T wireless network or AT&T PREPAID.

Get help activating & setting up a phone or tablet with AT&T. Learn how to transfer data to a new phone, set up voicemail & WiFi, and more.

To activate your device online, visit the Online Activation Portal. You'll need the wireless number you want to activate and the billing or shipping ZIP Code for the order.

Sep 13, 2020 · Install your SIM Card and activate. Once you get your new SIM card, insert it into your new device and activate the SIM card for use on the AT&T network.

Activate SIM card on your own device. Go to Activate your device. Follow the prompts to complete your activation.

Jun 3, 2025 · Activate and use your device Learn how to get your device running on our network. It can be one you bought from us or a compatible, unlocked device you already own.

Mar 8, 2024 · First, make sure your phone is charged. Next, insert the SIM card provided by AT&T. Then, power on your phone and follow the on-screen setup instructions. Finally, …

AT&T makes activating a wireless device online easy. Follow the steps below to activate your device in no time. Go to the Activate your AT&T wireless device page. Provide the wireless …

Activate your phone, device or AT&T Prepaid SIM card purchased from Walmart, Target, drug, grocery or discount stores.