SMS Gateways - AT&T

AT&T Inc. is the largest provider of fixed telephony in the United States, and also provides broadband and subscription television services. As of January 2011, AT&T is the largest provider of mobile telephony service in the United States, with over 95.5 million wireless customers, just ahead of Verizon Wireless’ 94.1 million, and more than 210 million total customers.

As of 2010, AT&T is the 7th largest company in the United States by total revenue, as well as the 4th largest non-oil company in the US (behind Walmart, General Electric and Bank of America). It is the 3rd largest company in Texas by total revenue (behind ExxonMobil and ConocoPhillips) and the largest non-oil company in Texas. It is also the largest company headquartered in Dallas. In 2010, Forbes listed AT&T as the 13th largest company in the world by market value and the 9th largest non-oil company in the world by market value.

Southwestern Bell Corporation was founded in 1983 as a Regional Bell Operating Company following the break-up of the original AT&T as a result of the United States v. AT&T antitrust suit. The company changed its name in 1995 to SBC Communications Inc. and again in 2005 to AT&T Inc. after it purchased its former parent company, AT&T Corporation. The newly merged company took on the iconic AT&T logo and T stock-trading symbol (for “telephone”).