The iPhone is designed for easy usability, giving you access to most U.S. GSM and CDMA networks like Verizon, Sprint, T-Mobile, AT&T, Metro PCs, Cricket, Boost, Simple mobile, Ultra me, Lyca Mobile, H2O  and most prepaid carriers. The GSM unlocked iPhone is perfect for international travel. Whenever you purchase a device with the RepairXperts, we plant a tree with the National Forest Foundation. Save money, recycle and plant with the RepairXperts!