Activate an AT&T Prepaid plan with a code

Trying to activate a plan you found on a phone package but don’t see it online? Provide the two-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 two-digit plan code on your phone package.
  3. Call 877.426.0525 and after you hear the current list of plans, say Plan code.
  4. Provide the two-digit plan code and service ZIP Code to activate.
Heads up: Once you activate your plan, be sure to make a payment to get started.
Last updated: April 11, 2023

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