The deadline to register mobile lines in Mexico expires on June 30, 2026, according to the Digital Transformation and Telecommunications Agency (ATDT). Starting July 1, unregistered lines will only function for emergency calls.

The National Mobile Telephone User Registry requires each line to be linked to the owner's name and unique population registry key (CURP). As of May 19, only 49.5 million of Mexico's 158 million active lines had completed mandatory registration, representing just 31% of the total. The pace accelerated as the deadline approached. President Claudia Sheinbaum confirmed on June 18 that more than half the population is now registered.

How to Register

Purpose and Penalties

The measure aims to combat phone extortion and identity theft linked to unregistered lines. President Sheinbaum clarified the registry does not target citizen surveillance. "The goal is to guarantee greater security and order in telecommunications services," she stated on June 18, according to El Informador.

The Federal Consumer Protection Agency (Profeco) and ATDT set up assistance desks in major cities through June 30. Penalties for non-compliance apply only to carriers maintaining active unregistered lines after the deadline closes.

Frequently Asked Questions

**When does Mexico's cell phone registration deadline expire in 2026?**

The deadline is June 30, 2026. Unregistered lines will work only for emergency calls starting July 1, with no data or messaging access.

**How many lines were registered in Mexico by May 19, 2026?**

49.5 million of 158 million active lines were fully registered by May 19, equivalent to 31% according to Expansión. Numbers climbed in June, with President Sheinbaum confirming over half the population enrolled by June 18.

**How can you register a cell line before June 30?**

Registration is available through the official ATDT app (App Store and Google Play), the National Registry website using your CURP, carrier phone service centers, and physical booths at Telcel, AT&T, and Movistar locations.

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