AT&T saw the past three years as a repositioning period, setting the company up for stronger growth in 2015 and beyond. Source: AT&T.

Shares of telecom giant AT&T (NYSE:T) rose 1.8% in after-hours trading, following the release of strong results for the fourth quarter of 2014.

AT&T's non-GAAP earnings rose 4% year over year to land at $0.55 per diluted share. Total revenues increased by 4.5% to $34.4 billion, adjusted to account for the sale of Connecticut wireline operations to Frontier Communications (NASDAQ: FTR).

The quarter matched Wall Street's earnings estimates to a "T" while exceeding the revenue consensus by $100 million.

In the crucial wireless division, AT&T saw sales rising 7.7% thanks to higher data service charges. Ma Bell added 1.9 million net new subscribers during the quarter, including 854,000 net postpaid accounts.

As a reminder, AT&T's archrival, Verizon Communications (NYSE:VZ), reported 2.1 net new connections in the fourth quarter, including 672,000 new postpaid phone lines.

Smaller rival T-Mobile US (NASDAQ:TMUS) won't report final results for another couple of weeks, but it announced preliminary fourth-quarter additions of 2.1 million net subscribers including 1.3 million postpaid gains. Sprint (NYSE:S) added 1 million new subscribers in the fourth quarter with 30,000 new postpaid subscribers, according to another preliminary report.

The vast majority of AT&T's wireless contracts are attached to its AT&T Mobile Share family plans, and over half of smartphone upgrades and additions are taking the AT&T Next rapid upgrade plan.

In the wireline segment, AT&T reported flattish sales and operating income. A 22% increase in U-Verse high-speed data and digital television service sales just about balanced out the relentless decline in traditional voice line accounts.

Looking ahead, AT&T provided two sets of expectations for 2015. If the proposed acquisition of satellite TV broadcaster DirecTV (NYSE:DTV.DL) completes in its current form, alongside numerous smaller pending deals in Mexican market, the combined company should deliver adjusted earnings growth "in the low single-digit range." In other words, the deal would hurt AT&T's bottom line at first but add profitable synergies over the long haul.

Without DirecTV and Mexico, earnings should still grow at the same single-digit percentage rate. The company didn't present any firm guidance ranges, but these directional statements were optimistic at heart.