How To Activate a Prepaid ATT SIM Card

How To Activate a Prepaid ATT SIM Card

What is Prepaid ATT SIM Card?

The AT&T Prepaid® SIM Activation Kit has everything you need to activate a device on the AT&T network. It includes a 3-in-1 SIM card for standard, micro and nano SIM devices. You can bring a new device, or bring your own, and keep your current number. It works with most phones and tablets.

How To Activate a Prepaid ATT SIM Card

Find the two-digit plan code on your phone package. Call 877.426. 0525 and after you hear the current list of plans, say Plan code. Provide the two-digit plan code and service ZIP Code to activate.

Frequently Asked Questions

How do I know if my AT&T SIM card is activated?

Viewing a SIM’s status using the AT&T Control Center Web Portal

  1. Click Devices.
  2. The page defaults to the “Device List”.
  3. In the box to the left of “Search”, enter the ICCID, customer name, Device Name, End Consumer ID, Customer, IMSI, Division, Company or Asset Type, then click Search.
  4. The device information populates.

Can I reactivate an AT&T prepaid SIM card?

Did your AT&T Prepaid account get canceled? Here’s how to reactivate service. You must purchase a new SIM card and plan to re-establish your AT&T Prepaid® service.

Why is my ATT SIM card not working?

If the SIM card reader is dirty, or has dust or debris in it, then it may be unable to read the SIM card. Try wiping down the SIM card with a small cloth, and use compressed air to clean out the SIM card slot.

How long does an AT&T SIM card last?

A prepaid account is automatically closed if the account balance is $0 for more than 60 days. Once your account is closed, the SIM card is deactivated. As noted above, you need to open a new account with a new SIM card and new number.

How do I find my ATT SIM card number?

On the front of the SIM card you’ll see a 19- or 20-digit number. This is the SIM card number. 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.

How long does AT&T prepaid last?

Payment amounts expire as follows: $10 to $24 expires in 30 days, $25 to $99 expires in 90 days, and $100 or more expires in 1 year. Account balance is not refundable and is forfeited at expiration date. Accounts will be cancelled 60 days after expiration.

How do I reset my AT&T SIM card?

First, you will need to try resetting/activating the SIM card with the following steps:

  1. Insert the SIM card – You can also find this information in your user manual.
  2. Go to
  3. Select Activate your device for AT&T wireless device.
  4. Enter the required information.
  5. Select Continue.

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

Note: Activation will take around 10 minutes to complete. The ICCID is located on the SIM card itself. To locate your IMEI, visit Find your device IMEI number.

How long does a $10 AT&T prepaid card last?

Your prepaid balance has an expiration date. The expiration date is based on the amount deposited, known as a refill. A $10-$24 refill expires in 30 days, a $25-$99 refill expires in 90 days, a $100 or higher refill expires in a year. Once your account balance hits $0, you then have 60 days to top up.

How do I access my AT&T prepaid account?

1. To manage your AT&T PREPAID account from your device or computer browser, go to 2. Enter your AT&T PREPAID wireless number and 4-digit password, then select Login.