AT&T has agreed to sell AT&T Mexico to Grupo Televisa and investment firm Fintech Holdings for US$2 billion, ending the US carrier's eleven-year run as Mexico's second-largest mobile operator. The transaction is expected to close in the first quarter of 2027.

The buyers combine two very different profiles: Grupo Televisa is one of Mexico's largest multimedia and telecommunications groups, while Fintech Holdings is an investment firm. For Televisa, the acquisition is transformative in scale. The deal would lift its share of total fixed and wireless subscribers in Mexico from 8% to 19%, a jump of more than double its current footprint.

Why is AT&T walking away?

AT&T framed the sale as a sharpening of priorities. The company said the transaction lets it focus on building what it calls the strongest fibre and 5G network in the United States. That is a commercial claim from the seller, and it sits comfortably within AT&T's broader North American investment narrative rather than saying anything specific about Mexico's economics.

The company also argued that AT&T Mexico's next phase of growth is best undertaken by a local operator, one that brings attractive assets to improve the overall customer value proposition. In plainer terms, AT&T believes a domestic owner with existing media and infrastructure holdings can extract more value from the asset than a US parent an ocean of regulatory and competitive distance away.

AT&T added that its effort to consolidate and modernise Mexico's second scaled wireless network has positioned the unit well for its new owners. The qualifier matters: the network was scaled, but it never caught the market leader.

What did the Mexico adventure actually cost?

The price tag of the exit invites a direct comparison with the cost of entry. AT&T entered Mexico in 2014 by acquiring Grupo Iusacell SA for $2.5 billion, as Data Centre Dynamics reports. A year later, in 2015, it added the Mexican business of NII Holdings for $1.9 billion. The two acquisitions totalled $4.4 billion; the sale price is $2 billion, roughly 45 cents on the dollar of what AT&T paid to build the position.

The strategic logic in 2014 was straightforward: a newly reformed Mexican telecoms market, with regulator-driven pressure on the dominant player, looked like an opening for a well-funded entrant. More than a decade on, that opening never widened enough.

The numbers explain the retreat. AT&T Mexico holds around 18% of the mobile market with more than 24.7 million wireless subscribers. That makes it the clear number two, but Telcel, the market leader, commands around 64% share, more than three and a half times AT&T's slice. Competing against that kind of imbalance requires sustained capital with an uncertain payback period, and the buyer group is betting local scale can change the equation.

Was the sale a surprise?

Rumours of a deal had circulated for months. Reports last December, noted by Data Centre Dynamics, suggested Grupo Televisa was nearing an agreement to acquire AT&T's Mexican unit. The confirmation this week ends the speculation and gives both sides a firm timetable.

For Grupo Televisa, the transaction is the more strategically significant half of the buyer consortium. Adding 24.7 million wireless subscribers to its existing fixed and media operations creates a converged operator with roughly one in five Mexican subscribers across fixed and mobile services. That is a meaningful counterweight in a market long defined by one dominant player, even if Telcel's 64% share remains untouched at the top.

What happens next?

The deal now moves toward closing, which the parties expect in the first quarter of 2027. Between now and then, the transaction will need to clear Mexico's competition and telecoms review processes, the standard path for any acquisition reshaping national subscriber shares by eleven percentage points.

For AT&T, the $2 billion proceeds and the freed management attention flow into its US fibre and 5G build, where the returns on capital are closer to home and the competitive map is less lopsided. For Televisa and Fintech Holdings, the next milestone is integration planning ahead of the 2027 close, and the longer test will be whether local ownership can convert an 18% market share into genuine competitive pressure on Telcel.