Add a line or device to an AT&T account

Before you begin

• If you have an installment plan, make sure you meet your plan’s eligibility requirements before trading in your smartphone. Learn about trade-in requirements
• If you choose a 5G phone but aren't on an AT&T Unlimited Your Way plan, switch to an unlimited plan where all plans have 5G access.¹ View unlimited plans
• If you want to transfer your number from another provider, see if it’s eligible to transfer. Wireless numbers take one to five days to transfer.

Choose a new device

1. Go to Shop smartphones, devices, and accessories.
2. Select a new device.
   • If you want to trade in your current device, select Trade in to start the process online.
   • We strongly suggest you add device protection to protect your new phone or tablet against damage or loss. Learn about adding device protection
3. Follow the prompts to either add the device to your current plan or select a new plan.

Before you begin

• Find out if your device will work on our network (PDF, 498KB)
• Make sure your device is unlocked. Not sure how to unlock your device? Contact your current provider or the device manufacturer.
• Want to keep your phone number? See if it’s eligible to transfer. Wireless numbers take one to five days to transfer. Non-wireless numbers take five to seven days to transfer.

Add the device to your account

1. Go to your att.com/activate.
2. Follow the prompts to order a new physical AT&T SIM card.

See all important details