NOKIA LUMIA 925 WHITE 16GB RM-892 FACTORY UNLOCKED LTE 4G 3G 2G (2G & 3G HSDPA 850/900/1900/2100 & 4G 800/900/1800/1900/2100/2600) NOKIA LUMIA 925 Unlocked cell phones are compatible with GSM carriers like AT&T and T-Mobile as well as with GSM SIM cards (e.g. H20, Straight Talk, and select prepaid carriers). Unlocked cell phones will not work with CDMA Carriers like Sprint, Verizon, Boost or Virgin.