AT&T Inc. said on Wednesday its quarterly revenue rose, but slightly less than Wall Street forecasts, as a popular offering to bill customers for devices separately from their wireless plans drew in the most contract subscribers in five years.

The No. 2 U.S. mobile provider earned $3.6 billion, or 68 cents per share, in the second quarter, compared with $3.8 billion, or 71 cents per share, in the year-ago quarter.

Revenue rose to $32.6 billion from $32.1 billion in the year-ago quarter.