Used Alltel Cell Phones
As of the second quarter 2008, Alltel Corporation is the fifth largest wireless telecommunications company in the United States with 13.4 million customers. It is however the largest regional wireless carrier by network coverage. In June 2008, Verizon Wireless announced that it will pick up Alltel. This will bring Verizon Wireless's subscriber base to 80 million.
Used AT&T Cell Phones
AT&T is the largest provider of both local and long distance telephone services, DSL Internet access and wireless service in the United States with 71.4 million wireless customers and more than 150 million total customers. Because of an anti-trust lawsuit in 1983, the former AT&T was disbanded into 7 "Baby Bells." However, through a circuitous route, it has regained much of it's former size and reach. Of the 22 companies which were born of the 1984 agreement to divest, 11 have become part of the new AT&T.
Used Boost Cell Phones
Boost Mobile is a wholly-owned subsidiary of Sprint Nextel, based on a joint venture with Boost Mobile in Australia and New Zealand. The joint venture agreement was to market the brand in the US. Nextel bought out the brand in 2003. It's most popular package is Boost Unlimited which offers unlimited calling and text messaging.
Used Nextel Cell Phones
Nextel merged with Sprint in 2004, and continues to provice walkie-talkie enabled phone service as a brand under the new company, Sprint-Nextel. Along with iDEN based models, Powersource (CDMA/iDEN) and QChat models are branded as Nextel phones with Nextel Direct Connect service.
Used Sprint Cell Phones
Now called Sprint-Nextel, it is the third largest wireless phone service provider in the United States. The company currently offers cellular phone service under its Sprint and Nextel brands. It also offers pre-paid services through the Boost Mobile brand, as well as providing bandwidth and infrastructure to Mobile Virtual Network Providers.
Used T-Mobile Cell Phones
T-Mobile USA is a subsidiary of T-Mobile Internation AG, based in Bonn, Germany. The fourth-largest wireless carrier in the US, it was formerly known as VoiceStream Wireless or Powertel before being acquired by Deutsch Telekom in 2002. T-Mobile competes on price and appeals heavily to the youth market.
Used Tracfone Cell Phones
Tracfone, is the sixth largest mobile phone service provider in the United States with more than 10 million customers. As a Mobile Virtual Network Operator (MVNO), it does not have any infrastructure of its own. Notwithstanding the fact, it is the largest MVNO in terms of revenues and reach. I makes use of AT&T, Verizon Wireless, Sprint, Claro and T-Mobile networks, and uses GSM or CDMA (depending on the network used).
Used Verizon Cell Phones
Verizon Wireless owns and operates the second largest wireless telecommunications network in the United States with 68.7 million subscribers. The company, a joint venture between Verizon Communications and the Vodafone Group, has the highest revenue of all wireless companies based within the United States, with an annual revenue of $43.9 billion.
Used Virgin Mobile Cell Phones
A joint venture of Sprint Nextel and the UK-based Virgin Group, Virgin Mobile is a mobile virtual network operator running off of the Sprint Nextel infrastructure. Virgin Mobile was one of the first companies to offer pre-paid plans and the first pre-paid only wireless telephone service provider.
