To set up an AT&T prepaid phone, you need your SIM card or eSIM activation card, your phone’s IMEI and ICCID numbers, and a Wi-Fi connection; the entire activation process takes only a few minutes. Whether you are activating a physical SIM or an eSIM, the steps below will get your phone working on the AT&T network.
How to set up an AT&T prepaid phone: what you need before you start
Before you begin, gather the following essentials: your AT&T Prepaid SIM card or eSIM activation card, the IMEI number (found in your phone’s settings or on the box) and the ICCID number (printed on the SIM card or activation card), a stable Wi-Fi connection for eSIM activation, and your phone itself. Activation is a quick process, so you can expect to be up and running in just a few minutes.
Insert your AT&T Prepaid SIM card
If you have a physical SIM card, start by inserting it into your phone. Locate the SIM card slot, usually on the side or back of the device. Use the SIM removal tool or a small paperclip to gently pop open the slot. Align the SIM card with the tray so the gold contacts face down, then carefully push the tray back into place. Power on your phone by holding the power button.
Activate your AT&T Prepaid phone online
- Open a web browser on your phone or computer and go to att.com/prepaid/activate-online.
- Enter your phone’s IMEI number and the ICCID number from your SIM card or activation card.
- Select a prepaid plan that fits your needs.
- Follow the on-screen prompts to complete the activation.
- Wait for the confirmation text message that indicates your plan payment has processed.
This online method is the quickest way to get your service running, and it handles everything from plan selection to activating phones and SIM cards on any carrier.
Activate your AT&T Prepaid phone by phone
If you prefer to activate over the phone, call one of these two automated activation numbers: 844.517.2184 or 877.426.0525. Have your SIM/ICCID number and IMEI number ready before you call. The automated system will guide you through the process, and once complete, you will receive a confirmation text after your initial plan payment processes.
Set up an AT&T Prepaid eSIM instead
For eSIM activation, turn on your device and connect to Wi-Fi. Then scan the QR code from your AT&T eSIM activation card. On Android devices, navigate to Settings, then look for Network, Connections, or Mobile, and find the option to download a SIM or eSIM. On Samsung smartphones, go to Settings > Connections > SIM card manager > Add mobile plan, then select Add using QR code. Follow the on-screen instructions to finish the eSIM setup.
Finish setting up your AT&T Prepaid phone
After activation, add a payment method to your account by logging into the AT&T Pay As You Go website or the myAT&T app. Navigate to the Payment or Billing section, enter your credit or debit card details, and save the information. Once your account is funded, confirm your phone is working by making a test call or sending a text message. If you receive a confirmation text after activation, your service is live and ready to use.
If your data isn't working, configure the APN settings: Go to your phone's 'Settings' menu. Select the 'Network & Internet' or 'Connections' option. Tap on 'Mobile Networks' or 'Cellular Networks.' Choose 'Access Point Names' or 'APN.' Tap on the '+' or 'Add' button to create a new APN profile. Enter the required APN settings found on AT&T's website or from customer support. Save the APN settings by tapping on the 'Save' or 'OK' button. After saving, select the newly created APN profile as the default one. Restart your phone to apply the changes.
To secure your phone, set up a lock screen: you'll be given the option to set up a method such as PIN, pattern, or fingerprint. Choose your preferred lock screen method and follow the on-screen instructions to set it up.
Depending on the phone model and software version, you may be prompted to set up additional features like facial recognition, voice assistant, or app preferences.
Frequently Asked Questions
Can I keep my current phone number when switching to an AT&T Prepaid phone?
Yes, you can usually transfer your existing number during the activation process. When activating online or by phone, you will have the option to port in your current number. Follow the prompts provided by AT&T to initiate the transfer.
What should I do if I run out of prepaid minutes or data?
You can add funds to your account by purchasing a refill card at an AT&T store or authorized retailer, or by using the myAT&T app or website to buy additional data or minutes. Your service will continue once the funds are applied.
Why is my data not working after activation?
If your data connection is not working, check that your Access Point Name (APN) settings are correct. Go to Settings > Network & Internet > Mobile Networks > Access Point Names, and enter the APN settings provided by AT&T for prepaid service. Restart your phone after saving the settings.
Do I need a credit check to set up an AT&T Prepaid phone?
No, AT&T Prepaid does not require a credit check or a long-term contract. You simply pay for your plan in advance, giving you flexibility without a credit inquiry.
Can I use an AT&T Prepaid SIM card in any unlocked phone?
Yes, as long as the phone is unlocked and compatible with AT&T’s network. Check your phone’s IMEI for compatibility on AT&T’s website before inserting the SIM card.
