alltel arena

You can choose among Cingular Wireless, Sprint, Nextel Communications, T-Mobile and Verizon Wireless among the big companies. While the smaller companies such as Alltel, Metro PCS, Amp'd Mobile, and U.S. Cellular tend to sometimes more regional, their services may still provide what you need at a cost you can afford, and cost is a major consideration for many.

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How can you tell if you have an unlocked cellular phone? First you must determine if your cell phone is GSM or CDMA. If your cell phone uses a sim card then it is GSM. U.S. GSM carriers are Cingular and T Mobile, for example. CDMA carriers are Verizon Wireless, US Cellular, Alltel, Qwest and Sprint PCS. Both types of cell phone can be locked and unlocked, but only the GSM phones can be easily switched from carrier to carrier.