AT&T Inc. emerged from its fourth-quarter earnings call on Tuesday with a message that resonated loud and clear with investors: the telecom giant's transformation is working, and shareholders are about to be rewarded handsomely for their patience.

The company reported quarterly earnings of $0.52 per share, comfortably beating analyst estimates of $0.47, while revenue climbed 3.6% year-over-year to $33.5 billion. More notably, AT&T's board authorized a new $10 billion share repurchase program—a significant vote of confidence in the company's financial trajectory following the completion of its $4.3 billion buyback in 2025.

Fiber: The Growth Engine Accelerates

At the heart of AT&T's bullish outlook is its fiber-optic network expansion, which CEO John Stankey has positioned as the company's primary growth catalyst for the remainder of the decade.

"We're not just building infrastructure—we're creating a platform for the next generation of connectivity," Stankey told analysts. "Fiber represents the most durable competitive advantage in telecommunications today."

The numbers support that thesis. AT&T plans to accelerate its annual fiber construction pace from 3 million new locations in 2025 to a run rate of 4 million by year-end 2026. Combined with its GigaPower joint venture and the fiber assets being acquired from Lumen Technologies, AT&T expects to reach more than 40 million customer locations with fiber services by December—up from 32 million at the end of 2025.

Mexico Operations Surprise to the Upside

While the domestic business commanded most of the attention, AT&T's Mexican operations delivered a breakout quarter that caught analysts off guard. Revenue in Mexico surged 20.6% year-over-year to $1.3 billion, driven by postpaid subscriber growth and favorable foreign exchange movements.

Operating income margin in Mexico improved to 2.7%, with wireless subscribers reaching approximately 24.7 million—a testament to the company's investment in network quality south of the border.

Cash Flow Powers Shareholder Returns

AT&T's full-year free cash flow of $16.6 billion—toward the higher end of its guidance range and up more than $1 billion from the prior year—provided the financial firepower for its aggressive capital return program.

"Our consistent execution has positioned us to return significant capital to shareholders while continuing to invest in growth," said CFO Pascal Desroches. "The new $10 billion authorization reflects our confidence in sustaining strong cash generation."

— Pascal Desroches, AT&T Chief Financial Officer

Three-Year Outlook: Steady Growth Ahead

Looking beyond 2026, AT&T outlined a multi-year financial framework that projects:

  • Service revenue growth: Low-single-digit gains annually through 2028
  • Adjusted EBITDA growth: 3% to 4% in 2026, improving to 5% or better by 2028
  • EPS guidance for 2026: $2.25 to $2.35, above the consensus estimate of $2.24

What This Means for Investors

AT&T's quarter represents a vindication of the strategic pivot it undertook after spinning off WarnerMedia. By focusing on its core connectivity business and investing heavily in fiber infrastructure, the company has rebuilt credibility with investors who had grown frustrated by years of deal-making and debt accumulation.

The $10 billion buyback authorization—representing roughly 6% of AT&T's current market capitalization—signals that management believes the stock remains undervalued relative to its cash-generating potential. Combined with the company's 5%+ dividend yield, AT&T is making a compelling case as an income-and-growth play in a sector that rarely offers both.

For the broader telecom industry, AT&T's fiber acceleration underscores the strategic imperative of fixed broadband as wireless growth matures. The race to wire America with fiber is intensifying, and AT&T has made clear it intends to lead.