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 DataConnect plan or a Mobile Share AdvantageSM Plan and 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, we’ll reduce your data speed to a max of 128Kbps (2G speeds) for the rest of your bill period.

Go to for more information about network practices. See the Mobile Share Advantage page to select a plan that’s right for you.

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

Quick facts

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 (subscriber identification module) card is embedded with a specially programmed microchip that inserts into a compatible Global System for Mobile Communications (GSM) mobile device. The SIM card encrypts transmissions and identifies the user to the mobile network. Without a SIM card inserted into the mobile equipment, only emergency calls to 911 can be made.


MOBILE SHARE ADVANTAGE: Monthly plan charge and per device monthly access charge. Data: For use in the U.S., Puerto Rico & the U.S. Virgin Islands (“Domestic Coverage Area” or “DCA”). 10GB and higher plans also include usage in Mexico. Usage in Canada for select Connected vehicles only. Rollover Data: Unused data from the monthly plan allowance carries over for one bill cycle. Rollover Data automatically expires after one bill cycle and with any plan change (such as changing data amounts or termination). Rollover Data is used after your monthly plan allowance. Overage Charges and Data Speeds: No charge for overage. After all your high-speed data allotments are used, all data usage is slowed to a max of 128Kbps (2G speed) for the rest of the bill cycle. You will have basic data use for viewing a webpage or checking email. Audio/video streaming, picture/video messaging, as well as other usage, including sponsored data, will be impacted and may not work. See for information about AT&T’s network practices. UNLIMITED TALK: For phones. Calls within DCA (10GB and higher plan also calls within Mexico). Service may be terminated for excessive roaming (see Wireless Customer Agreement at Unlimited Talk to Canada/ Mexico: 10GB and higher plans. For phones. International Long Distance (ILD) calling from DCA to Mexico/Canada. Other Countries: Per-minute pay-per-use rates apply unless have an ILD service package on the line. Rates subject to change without notice. For rates see UNLIMITED TEXT: Standard Messaging – For phones. Includes unlimited number of messages up to 1MB in size within and from DCA (for 10GB and higher plan also Mexico) to more than 190 countries for text and 120 countries for picture/video. Countries subject to change. Messages sent through applications may incur data/other charges. Details at Advanced Messaging – Capable devices only. Both sender and recipient(s) must be AT&T postpaid wireless customers with HD Voice accounts, must have their devices turned on, and be within AT&T owned and operated DCA only (excludes third-party coverage and use in Mexico). Includes unlimited number of messages up to 10MB in size. Additional restrictions apply. See details at Mexico Service Restrictions: 10GB and higher plans also include plan usage in Mexico. Not available on WHP, WHPI, and Connected Devices. Pay-per-use roaming rates will apply. Plan usage or roaming in Mexico not available on Connected vehicles. See store or for full plan details.


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.