AT&T sells its Mexico business to Televisa: what happens to the lines, data links and IoT SIMs of your Mexico operation

On October 17 and 18, Xataka México and Milenio reported that AT&T is selling its Mexico business and that Televisa, the Mexican media group, is taking over the company. President Sheinbaum even explained why it went that way.

If your Mexico operation runs phones, data links or IoT SIMs on AT&T, nothing switches off today. But if headquarters is abroad, this is the moment to find out what your local entity actually signed.

What is known and what is not

What is known: AT&T sells, Televisa buys. Milenio frames it as CEO John Stankey betting everything on the US market.

What has not been announced: a closing date, new rates, plan changes, rebranding or coverage changes. We will not guess.

Our view: existing contracts are usually honored and changes tend to show up at renewal. So your paperwork matters more than the headlines.

Contracts, lock-in terms and financed devices

A common story: the Mexico entity signed a 24-month contract through a local manager who has since left, and HQ procurement has never seen it. Start there.

What to check	Where to find it	Why it matters
Lock-in term and end date	Contract or business portal	Tells you if you can move without penalties
Financed devices	Monthly statement	Porting early may leave a balance due
Early termination fees	Contract annexes	The real cost of leaving
Account holder and authorized contact	Account manager	Only they can request changes or porting
Dedicated links and their SLA	Data services contract	The SLA is the written response commitment

If HQ buys AT&T services in the US, ask your account team how the Mexico lines are handled. Do not assume the global deal covers them.

Number porting stays in your hands

Porting means moving your numbers to another carrier while keeping them. In Mexico, the account holder requests it with the documents of the Mexican legal entity.

IoT SIMs, GPS trackers and alarm panels

An IoT SIM is a chip inside a device, not a phone. The GPS in delivery vans, the alarm panel at the warehouse, the cold room sensor, the payment terminal at a store.

The APN is the setting that tells that device how to reach the carrier network. If it ever changes, the device just stops reporting. Nobody notices until the alarm is needed.

In our experience, this is the most forgotten item when the IT owner sits in another country. List each device, site, SIM number, APN and who pays for it.

A backup link from a different carrier

If your primary internet in Mexico is AT&T, or the LTE failover on your router uses an AT&T SIM, your redundancy depends on one company. That is not a backup.

Mix carriers: fiber from one, LTE from another, or add satellite. See when Starlink works as a backup link in Mexico and the nearshoring IT checklist.

Then test it. Unplug the primary link on a quiet afternoon and check that the plant still talks to HQ.

Let’s talk

What about your Mexico operation?

If nobody can say how many AT&T lines, SIMs and links your Mexico sites have, that is step one.

At ProcessBi we build the inventory of lines, SIMs and links, design redundancy with fiber, LTE or Starlink from another carrier, and handle the migration without downtime, if and when you decide to move. In English or Spanish, invoiced in MXN or USD.

Book your free assessment — we reply the same business day.