AT&T is an excellent choice when it comes to your wireless network. With the diverse AT&T Internet prices, you can find a plan that fits your budget and needs. With an AT&T Wireless plan, you get the SIM card that needs to be activated so you can begin enjoying your internet connection.

SIM activations are a quick process that does not take up much of your time. Regardless of the reason you are changing your AT&T SIM and need to activate the new one, we have prepared this quick guide for you with the simple steps you can follow for your sim activation.

How to activate AT&T SIM Card?

AT&T SIM card activation is simple. You can do it online, by either making a phone call or simply visiting any AT&T store near you.

Continue reading to find out more about your options.

Activate AT&T SIM Card Online

To activate the AT&T SIM card online, follow the steps below:

  1. Go to
  2. Fill in the form with your ICCID/SIM number, or EID number (these are available on your SIM package).
  3. Now enter the IMEI number of the device, and service ZIP code. To get your IMEI number simply dial *#06#*.
  4. Lastly, fill in the passphrase correctly.

Activate AT&T SIM Card In-Store

You can activate your AT&T SIM card by visiting any of the AT&T Stores. Click here to locate the store nearest to you.

Activate AT&T SIM Card on Call

For your AT&T SIM activation over the call, dial 1-855-386-4590 and an expert customer representative will take care of the matter and it will be done in no time. Just be sure to have your IMEI number, ICCID, or EID number prepared before you make the call.

So, activate your AT&T SIM card with these simple steps above and you will be done in no more than 10 minutes! In case you are facing any issues with the completion of SIM activation, feel free to reach out to AT&T customer service.

Frequently Asked Questions

How long does it take for a SIM card to activate AT&T?

SIM card activation for your AT&T service does not take longer than 10 minutes.

Can I get a free SIM card from AT&T?

If the customer gets their new phone from AT&T, the SIM card comes included with it. However, in case the customer wants a replacement SIM, it costs $5.

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