Introduction
Starting January 2026, new mobile phone users in Mexico will be required to link their SIM cards to the Unique Population Registry Code (CURP). This change aims to combat fraud, extortion, kidnapping, human trafficking, and other illicit activities by associating all mobile phone lines to a physical or legal person (company).
Key Players and Timeline
AT&T, Telcel, and Movistar are the major telecommunication companies implementing this change. AT&T’s registration process begins on January 7, while Telcel and Movistar start theirs on January 9. If you already have a mobile line before these dates, you’ll have 120 business days to link it. The deadline for Telcel and Movistar is June 30, and for AT&T, it’s June 26.
Consequences of Non-Compliance
According to the new regulation published in the Official Gazette of the Federation, any unlinked line will be suspended and can only be used for emergency calls and citizen assistance numbers (074, 079, 088, 089, and 911).
Linking Process
The linking process can be done either in-person (at company service centers) or remotely using an official identification document like the INE, passport, or biometic CURP.
Remote Linking
For new lines registered remotely, the service provider will send an SMS, email, or instant message to the title holder with instructions on how to access the Mobile Lines Management Platform and start the linking process. The message will contain a link directing you to the company’s website.
Deadline for Linking
You have 30 days after activation to link your line. If you don’t complete this process within the given time, any balance, benefits from top-ups or payments will be removed.
Key Questions and Answers
- What is the new mobile phone registration rule in Mexico? Starting January 2026, all new mobile phone users must link their SIM cards to the Unique Population Registry Code (CURP) to access services and benefits provided by their telecommunication contract.
- Which companies are implementing this change? AT&T, Telcel, and Movistar are the major telecommunication companies enforcing this new rule.
- What happens if I don’t link my mobile line? Unlinked lines will be suspended and can only be used for emergency calls and citizen assistance numbers.
- How can I link my mobile line? Linking can be done in-person or remotely using official identification. Remote linking involves receiving instructions from the service provider to access the Mobile Lines Management Platform.
- What is the deadline for linking my mobile line? You have 30 days after activation to link your line. Failure to do so within this period will result in the removal of any balance or benefits from top-ups or payments.
