What is the mobile line linkage?#
It is a regulatory measure that requires every mobile phone line in the country to be associated with a natural person or legal entity to combat the use of devices in illicit activities. This obligation is based on the collaboration powers regarding security provided for in the Federal Law of Telecommunications and Broadcasting.
Will my phone or cell line be blocked?#
It is important to make the distinction: the blocking is administrative and network-based, not on the physical device. If a line is not linked, the operator will suspend the service associated with that SIM card. This means you will stop receiving signals for calls, SMS, and mobile data. Your phone, however, will continue to function perfectly as a device: you will be able to use Wi-Fi, take photos, play games, and use all your applications without problems. If you subsequently register your line or insert an active SIM card, your phone will function normally again.
What is the exact law that requires me to register my line with the CURP?#
The current legal basis is the Law on Telecommunications and Broadcasting, published in the Official Gazette of the Federation on July 16, 2025. Specifically, the legal foundation is found in two articles:
Article 103: Dictates that private telephone companies can only activate and maintain active services for users who present an official ID containing the CURP (for individuals) or the RFC (for companies).
Article 183: Obligates telephone companies to preserve a registry with your data (name, address, and lines) and to collaborate with safety and justice authorities if necessary.
You can consult the full official text on the official website of the Chamber of Deputies: diputados.gob.mx/LeyesBiblio/pdf/LMTR.pdf
Is this measure the same as the PANAUT that the Supreme Court canceled?#
No. The former National Registry of Mobile Telephony Users (PANAUT) was declared invalid by the Supreme Court of Justice of the Nation (SCJN) in 2022 when it invalidated articles 180 Bis through 180 Septimus of the Federal Law of Telecommunications and Broadcasting. The current measure derives from the new “Guidelines for the identification of mobile phone lines” approved by the CRT on December 8, 2025, which you can consult in the official CRT statement. Unlike PANAUT, this new regulation in force since January 2026 establishes that information is not handed over to a centralized registry, but is protected by operators under personal data protection standards.
What is the legal basis for collaboration with authorities?#
Although the PANAUT articles were invalidated, the current law maintains provisions regarding collaboration with justice. Article 180 of the Federal Law of Telecommunications and Broadcasting establishes the obligation of concessionaires to make the necessary data for official records available to the Institute. Likewise, Articles 189 and 190 of the same document establish the obligation of concessionaires to collaborate with security and justice procurement instances in geolocation and the preservation of data necessary for the investigation of crimes.
What will happen on July 1, 2026, if I do not register my line?#
If your line has not been linked, the service will be suspended in accordance with current guidelines. This means you will lose the ability to make calls, send SMS, and navigate via mobile data. Although the line is suspended, by law, calls to 911 must remain active for public security reasons.
Is my data protected against fraud?#
Yes, provided you use official channels. Operators must comply with the Federal Law on Protection of Personal Data. The greatest risk is phishing: never click on SMS links that promise to “avoid a cutoff” or “pay for an extension.” Always verify your status directly in your operator’s official app or at their physical branch.
What recent legal changes have occurred in telecommunications?#
In June 2025, the Senate Plenary approved in general terms the draft decree to issue the Law on Telecommunications and Broadcasting. Among the most notable changes, according to the official Senate statement, is the elimination of the authority to block digital platforms and adjustments to the powers of the Digital Transformation Agency to ensure greater dialogue and avoid censorship. It is essential to closely follow the publication of these provisions in the Official Gazette of the Federation (DOF) to precisely understand how the new standards regarding connectivity and security will be applied.