The company handed much of the credit to its role in the introduction of the iPhone 3G. The company has exclusive carrier rights to the Apple smartphone in the US.
Revenues from AT&T's wireless unit climbed 52 per cent, and iPhone sales for the first twelve days of the iPhone 3G's availability were double that of the original handset.
"In the days following our exclusive U.S. launch of this new device, customer response has been everything we had anticipated and more," said chairman and chief executive Randall Stephenson.
"This strengthens our wireless business, and it reinforces our positive view of the opportunities ahead for AT&T and the industry."
The company hopes that the iPhone 3G will be the first step in a larger push by the company to the forefront of the race for high speed.
"Mobility, broadband connectivity and integrated services that encompass voice, data and video are driving a new world of communications," declared Stephenson.
"AT&T is all about deploying and enhancing premier networks and products to deliver this world to both business and consumers."