Company Overview: AT&T is currently the largest wireless carrier in the nation. AT&T formerly Cingular Wireless, uses a nationwide GSM network of cell towers and is roaming partners with T-Mobile, SunCom, and other GSM providers operating GSM systems. Cingular has more than 72.9 million (June 08) subscribers in the U.S. The company is headquartered in Atlanta, GA.
Following AT&T's merger with BellSouth in December 2006, Cingular Wireless is now solely owned by AT&T. Now that branding is complete, the new AT&T represents the largest wireless company in the United States, with more than 63 million subscribers who use the nation's largest digital voice and data network.
Special Plan Features: Rollover service allows subscribers to carry unused minutes from month-to-month; Myriad monthly plans include free mobile-to-mobile and optional unlimited nights/weekends and family calling; Data services available for phones/PDAs, BlackBerry devices, and laptops; Pre-paid service available.
Unique Features: Rollover minutes; Downloadable games, ringtones, and other entertainment; "MEdia Net" mobile Internet service for phones; Only major GSM carrier with push-to-talk service.
Pros: Nationwide service coverage and monthly plans competitive with all major carriers; Rollover minutes provide added value; Extensive selection of data and entertainment add-ons; GSM network supports many phones.
Cons: Notable customer service complaints in wake of merger with AT&T Wireless in 2004.
Customer Service Review: Cingular's customer service reputation took a major hit in recent years, with over 14 million complaints logged by the FCC in 2004 and the removal of Cingular from the New York BBB listings in August, 2005. The company is restructuring its customer service operations and reported a 56% reduction in regulatory complaints in Q1 2006.
Technology Used: Cingular Wireless operates nationwide GSM voice networks with GPRS and EDGE data services. Newly lauched "BroadbandConnect" UMTS/HSDPA high-speed network. Cingular also supports their legacy TDMA and analog networks, though they have recently announced these networks will be shut down in 2008.
Network Benefits: Nationwide coverage including high speed data services; Enterprise services for businesses - Cingular is the largest BlackBerry provider in North America; Push to talk service. | 
