The nation's biggest telecommunications company said Tuesday that it earned $6.9 billion, or $1.31 per share, in the October-December period. That's up from a loss of $3.8 billion, or 68 cents per share, in the same period a year earlier.
The latest quarter's results included a pension-related gain of $7.6 billion, tax expenses and other items. Excluding these items, adjusted earnings were 53 cents per share in the latest quarter, beating analysts' expectations by 2 cents. The year-ago results included a loss of $10 billion related to pension accounting.
Revenue rose 2 percent to $33.2 billion from $32.6 billion.
Analysts on average were expecting revenue of $33.1 billion, according to FactSet.
Wireless revenue, which includes equipment sales, grew 5 percent to $18.4 billion from $17.6 billion.
AT&T said it added 809,000 net wireless subscribers in the fourth quarter. It added 566,000 wireless devices to its contract-based plans, which are the most lucrative. Of these 299,000 were smartphones and the rest tablets, which carry lower monthly fees than phones. AT&T is the second-largest cellphone company in the U.S. after Verizon Wireless.
Churn, or the turnover rate for contract-based subscribers, was 1.11 percent during the quarter, down from 1.
AT&T is benefiting from the growing popularity of smartphones and tablet computers, but the company is also facing competition from Verizon Wireless as well as smaller rivals such as T-Mobile and Sprint Corp.
On Monday, AT&T announced that it does not plan to make an offer for British mobile phone company Vodafone in the near future. The announcement means AT&T is restricted from initiating a bid on Vodafone in the next six months, according to British takeover rules. But it can respond to an offer initiated by Vodafone, or it can make a bid in response to an offer from another company.
Shares of Dallas-based AT&T fell 61 cents, or 1.8 percent, to $33.09 in after-hours trading following the release of the earnings report. It closed the regular trading session up 19 cents at $33.70.