Data Usage Information & FAQs from AT&T

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Do you have an unlimited data plan? If so, we have information to help you manage your account.

As a result of the AT&T network management process, customers on a 3G or 4G smartphone with an unlimited data plan who have exceeded 3 gigabytes of data in a billing period may experience reduced speeds when using data services at times and in areas that are experiencing network congestion. Customers on a 4G LTE smartphone will experience reduced speeds once their usage in a billing cycle exceeds 5 gigabytes of data. All such customers can still use unlimited data without incurring overage charges, and their speeds will be restored with the start of the next billing cycle.

More about unlimited data plans and reduced speeds

Managing your data usage is easy. Check your data usage anytime by dialing *data# from your smartphone.

If you have one of our Mobile Share® plans or our tiered data plans, this information does not affect you.

Learn more about our Mobile Share Value plans with Unlimited Talk and Text.

If you have a smartphone that works on our 3G or 4G network and still have an unlimited data plan:

  • You'll receive a text message when your usage approaches 3GB in one billing cycle.
  • The next time you exceed that usage level, your speeds may be reduced without another text message reminder.
  • Each time you exceed 3GB or more in a billing cycle, your data speeds may be reduced for the rest of that billing cycle and then go back to normal.

The same process applies for 4G LTE smartphones with unlimited data plans except your speeds will be reduced once you exceed 5GB of data usage (instead of 3GB).

You'll still be able to use as much data as you want without incurring overage charges. That won't change. Only your data throughput speed may change if you exceed 3GB in one billing cycle on a 3G or 4G smartphone or 5GB or more on a 4G LTE smartphone.

More about unlimited data plans and reduced speeds

1. Use Wi-Fi.

Your speeds are not reduced if you are connected via Wi-Fi. Data activity over Wi-Fi doesn't count toward the threshold at which your data speeds will be reduced.

Learn how to connect via Wi-Fi

2. Do nothing.

You may continue to use an unlimited amount of data without incurring overage charges; however, your speeds may be reduced if you exceed 3GB of data on a 3G or 4G smartphone in a billing cycle, and will be reduced if you exceed 5GB of data on a 4G LTE smartphone in a billing cycle.

3. Switch to our Mobile Share® Value plans.

With Mobile Share Value plans, your speeds are not reduced. You can switch anytime without having to sign a new two-year term agreement.


Learn more about our Mobile Share Value plans with Unlimited Talk and Text.

Three Tools to Help Monitor and Reduce Your Network Usage:

  1. Estimate your usage with the data calculator.
  2. Check usage this month by dialing *data# on your mobile phone.
  3. Log in to your account to check historical usage.

AT&T Smartphone Adoption

Experts agree that our country continues to face a serious wireless spectrum crunch. While access to more spectrum is critical, we are continuing to invest aggressively to meet customer demand:

  • AT&T invested nearly $119 billion in its wireless and wireline networks over the past six years (2008 through EOY 2013).
  • In 2013, we invested $21.2 billion in our wired and wireless networks.

AT&T Smart Wi-Fi App

Locate and connect to Wi-Fi
hotspots. Manage connections and data usage.

Get it on Android Market