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Device information

Let's start your SIM card activation

Device information

If you suspended service on a lost or stolen device, you’ll need to reactivate service on that line before you can replace your device. Visit myAT&T to reactivate service

Bring AT&T your phone, tablet, smartwatch, or other cellular devices. It's easy to activate a SIM card or eSIM activation card for your new or replacement device.

Bring AT&T your phone, tablet, smartwatch, or other cellular devices. It's easy to activate a SIM card or eSIM activation card for your new or replacement device.

Start by entering your SIM card and device information below.

To activate service on your device, please type in your ICCID/CSN and IMEI numbers below.

Activate your ATT SIM Card on the ATT Network - AT&T
Activate your ATT SIM Card on the ATT Network - AT&T
Activate your ATT SIM Card on the ATT Network - AT&T
Activate your ATT SIM Card on the ATT Network - AT&T

If you don't have a SIM card with an ICCID then click Continue to order a new SIM.

As a security measure, your session will end in 5 minutes.

If you need more time, select Continue to extend your session.
Your session has timed out. As a security measure, your session ends after 30 minutes of inactivity.
As a security measure, your session will end in 5 minutes.

If you need more time, select Continue to extend your session.
Your session has timed out. As a security measure, your session ends after 30 minutes of inactivity.