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Activate an AT&T PREPAID plan with a code

Trying to activate a plan you found on your phone package but don’t see online? Use the 2-digit code on your package to activate it.

  1. Make sure the phone is turned on and the SIM card is inserted.
  2. Find the 2-digit plan code on your phone package.
  3. Enter *123*, your ZIP Code*, the 2-digit plan code, then # on your phone’s keypad. For example: If your ZIP Code is 90210 and your 2-digit plan code is 87, you’d enter *123*90210*87#.
  4. Tap the call button and follow the prompts to activate your plan.

Heads up: Once you activate your plan, be sure to make a payment to get started.

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