New Mandatory Mobile Phone Registration in Mexico: What You Need to Know Heading into 2026

Starting in January 2026, mobile phone use in Mexico will change significantly. Thousands of users could lose service if they don't comply with a new mandatory requirement that will completely modify how phone lines are registered and managed in the country. The Telecommunications Regulatory Commission (CRT) approved a provision establishing a new identification system for all active mobile numbers.

According to this measure, the regulation will take effect on January 9, 2026. From that date, everyone with a mobile phone line—whether prepaid or on a postpaid plan—must formally register their number. Failure to complete this procedure within the established deadlines will result in service suspension, meaning users will be unable to make calls, send messages, or use mobile data.

What is the official reason for suspending phone lines?

The CRT (Telecommunications Regulatory Commission) approved the Guidelines for Identifying Mobile Phone Lines with one central objective: to combat crimes that have become recurrent in the country, especially telephone extortion. This type of crime has shown alarming growth, to the point of breaking recent records. In the first half of 2025 alone, more than 5,887 victims were registered, according to official figures.

Authorities have also indicated that a considerable portion of these extortion calls originate from prisons, a situation detected through citizen complaints and investigations. The difficulty in identifying the true perpetrators is largely due to the fact that many phone lines are not clearly associated with a specific person.

One number, one perpetrator

With this new registry, the government aims to ensure that every phone number is linked to a real, fully identified owner. The intention is that, in the event of a crime, authorities can more easily trace the origin of calls, messages, or potential cyberattacks, thus strengthening their investigative and prosecutorial capabilities.

In this context, mandatory mobile phone registration is presented as a preventative and control tool intended to reduce the anonymous use of cell phones for illicit purposes. For users, this will mean staying informed, completing the registration process, and safeguarding their information to avoid service suspension once the measure takes effect.