Nokia Asha 303 Graphite, WiFi,FM RADIO, QWERTY Keyboard Unlocked QuadBand 3G Cell Phone International Version Cellular Band - Quad-Band 850 / 900 / 1800 / 1900 Mhz 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.