Microsoft Lumia 435 UNLOCKED Windows Phone 8 WP8 2G GSM 850/900/1800/1900MHZ, 3G 850/900/1900/2100MHZ - Black (International version, No Warranty)
Unlocked cell phones are compatible with GSM carriers such as AT&T and T-Mobile, but are not compatible with CDMA carriers such as Verizon and Sprint.