An Unlocked Cell Phone is a cell phone that can be used with various GSM-compatible carriers worldwide (a GSM phone requires a SIM card). That means an unlocked cellphone can be used within United States with T-Mobile, Cingular/AT&T, etc., provided the phone supports the frequencies of the service provider. Unlocked cell phones can also be used with many other GSM service providers/carriers around the world. Be sure to check out our International SIM Cards.

Many manufacturers offer unlocked GSM cell phones, including: Nokia, Motorola, Sony Ericsson, Samsung, LG, Alcatel