AT&T Inc is an American multinational telecommunications corporation, headquartered in Dallas, Texas. It is the second largest provider of mobile telephone and the largest provider of fixed telephone in the USA, and also provides broadband subscription television services. AT&T is the third-largest company in Texas, and the largest non-oil company. It owns and operates more than 34,000 wifi hot spots around the US. In 2013 it had 246,740 employees and revenue of $128.752 billion.


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