Activate your T-Mobile USA sim card here

Please note that this activation form is strictly for the use of customers of If you purchased your sim card through a retailer in the United States you will need to activate your sim card at or through the store you bought your sim card form.

Fields marked with an * are required

Your sim card will be activated with your US mobile number sent to you by text message after you arrive in the United States.

Please note: it usually takes around six hours for your activation to complete so it is best not to leave this to the last minute prior to travelling to the USA.