AT&T (http://www.att.com) has reported solid second-quarter results highlighted by double-digit earnings growth, an increase in consolidated revenues and improved margins. These results were driven by continued growth in mobile broadband, including a record quarter for iPhone activations, gains in IP-based and strategic business services and disciplined execution on cost initiatives.

The company saw 3.2 million iPhone activations in second quarter. AT&T saw a 10.3% increase in wireless service revenues, with postpaid subscriber ARPU (average monthly revenues per subscriber) up 3.4%.

For the quarter ending June 30, 2010, AT&T’s consolidated revenues totaled US$30.8 billion, up $194 million, or 0.6%, versus the year-earlier quarter, marking the company’s second consecutive quarter with a year-over-year revenue increase. Versus the first quarter of this year, consolidated revenues were up $278 million, or 0.9%.