This prepaid Telcel LTE Micro SIM Card is brand new, registered and activated. Once you receive the SIM, you will need to enter your arrival date in our activation portal. Telcel is the largest operator in Mexico and has the most extensive coverage with the fastest speeds. You can refill the SIM with additional Minutes and Data packages either through our website or directly with Telcel. Ideal buy for your unlocked iPhone, Android device or any other unlocked GSM phone. It comes with a Mexican phone number and is activated with the cheapest calling rates for calls to the US. Incoming calls are always free. The SIM can be re-used as long as there is a refill every 6 months or less. Our Telcel SIMs are tested before being shipped so there is no defect rate and we provide 24/7 customer support as well even though our solution is "plug-and-play".