Check your device compatibility

Bring your own device to AT&T. Order a SIM card and transfer a device to AT&T or add it to your existing account. Be sure your device is unlocked if you are transferring from another carrier.

To see if your device works on the AT&T network, enter your device and brand, or the IMEI number below.

For help finding your device’s IMEI, simply select your device and brand, choose your device from the results, and then click Continue.



Can’t find it? Dial *#06# and enter your 15 digit IMEI number in the box on the right.


If you know your device IMEI, enter it here:

IMEI number

To find your IMEI number, dial *#06# on your keypad. This will return your IMEI number.


* # 0 6 #

We have a plan that’s right for you

When you bring your device to AT&T, sign up for a Mobile Share AdvantageSM Plan and you can enjoy unlimited talk, text, and shared data with no overage charges. Once you use all of your high-speed data amounts, including any available Rollover Data, all data usage will be reduced to a max of 128 Kbps (2G speeds) for the rest of your bill cycle. Data usage will be impacted. Plus this plan will include Stream Saver.

Go to for more information about network practices. See the Mobile Share Advantage page to learn more about this plan and to select a plan that’s right for you. DataConnect plans are also available.

Don’t know how much data you need? Use our handy Planner to help you decide.

Quick facts

After December 31, 2016, the minimum requirement needed to operate on AT&T’s network is 3G; WCDMA (UMTS) HSPA 850/1900 Mhz Band 2 and Band 5.

If your phone meets the network requirements but isn’t connecting to the AT&T network, contact the device manufacturer.

To use data services on the AT&T network with a device from another carrier or purchased directly from the manufacturer, you may need to program the data settings. If you are using an AT&T branded device, it should already be programmed with the correct settings. For a step-by-step guide to changing your data connection settings, please visit our Programming non-AT&T devices article.

Once you have an AT&T SIM and have activated the AT&T SIM card, you can put it in any compatible, unlocked GSM device you choose.

Yes, you add a line by logging in to your account and adding a SIM, plan, and services.

Your new SIM card will be sent to you by mail and arrives ready to use. All you have to do is insert it in your phone or tablet, and you're ready to go.

To find out if your device uses a SIM card, a micro-SIM card, or a nano-SIM card, enter your device and brand, or the IMEI number, above. All versions of the iPhone® 5 use a nano-SIM card. iPhone 4/4S uses a micro-SIM. Most 4G LTE Android® phones use a micro-SIM.

A SIM card is a microchip that inserts into a compatible mobile device. It identifies you and connects you to the mobile network.

MOBILE SHARE ADVANTAGE: No charge for overage. After all your high-speed data allotments are used, all data usage is slowed to a max of 128 Kbps (2G speed) for the rest of the bill cycle. You will have basic data use for viewing a web page or checking email. Audio/video streaming, picture/ video messaging, as well as other usage, including sponsored data, will be impacted & may not work. See for information about AT&T network management practices. Video Streaming: Plan includes Stream Saver, which allows you to save data by streaming higher definition video at Standard Definition quality (about 480p). AT&T will activate it. Check your account online to see if active. You may then turn it off or back on at any time at Stream Saver will not recognize all video content. Ability to stream & video resolution vary, and are affected by other factors. Restrictions apply. See for details. See store or for full plan details. Rollover Data: Unused data from the monthly plan allowance carries over for one bill cycle and is used after your monthly plan allowance. Unused Rollover Data automatically expires after one billing period or w/ any plan change (such as changing data amounts or termination). 

GENERAL SERVICE TERMS: Subject to Wireless Customer Agreement (at or for business customers the applicable Business Agmt. Service not for resale. Fees, monthly, and other charges, coverage, usage, and other restrictions apply. Pricing, promotions, restrictions, and terms subject to change and may be modified or terminated at any time without notice. You get an off-net (roaming) usage allowance for each service. If you exceed the allowance, your service(s) may be restricted or terminated. Other restrictions apply and may result in service termination.