The deadline for registering mobile phones with numbers ending in zero has passed today, August 15, 2026, according to the Mexican telecommunications regulator, the Comisión Reguladora de Telecomunicaciones (CRT). Users who have not linked their phone lines to their Clave Única de Registro de Población (CURP) will face temporary service suspension starting within the next 72 hours. The measure was part of a broader initiative to enhance security in telecom services, ensuring users can verify their identity and protect their accounts from fraud, extortion, and other crimes. The registration process for mobile lines ended today for numbers ending in zero. This follows a previous extension granted by the CRT, which allowed more time for users to comply with the requirement. According to the CRT’s schedule, all mobile numbers must be registered by linking them to a CURP before their respective deadlines. For numbers ending in zero, the last day to complete the registration was August 15. Failure to meet this deadline will result in the temporary suspension of mobile services, including data access, except for emergency calls. Once the deadline passes, telecommunications companies will suspend non-registered lines. Users will be able to make emergency calls only until they complete the registration. Once the registration is confirmed, full services, including voice calls, text messages, and mobile data, will be restored. The registration process requires users to visit either a physical branch of their service provider or use an online platform. They need to present a valid ID, such as a voter's credential, and link it to their phone number. A photo of both sides of the ID must be uploaded, and the system will validate the user’s identity through the camera on their mobile device. The CRT announced the registration campaign in January 2026 as part of government efforts to improve security in telecom services. The initiative aims to reduce criminal activities such as extortion and fraud by verifying the identity of users. As of now, approximately 71 million 101 thousand 768 lines have been successfully linked to a CURP, representing around 49% of the total number of active lines in Mexico. The remaining lines will be subject to registration deadlines based on their last digits, with subsequent dates set for September, October, November, and December 2026. For numbers ending in one, the deadline was August 31. Those ending in two had until September 15, while numbers ending in three were due by September 30. Numbers ending in four had their deadline on October 15, five on October 31, six on November 15, seven on November 30, eight on December 15, and nine on December 31. Each of these dates marks the end of the registration period for specific groups of numbers, following a phased approach designed to ensure compliance across the country. Users who missed the deadline for numbers ending in zero should contact their service provider immediately to begin the registration process. While late registrations may still be accepted, there is no guarantee that services will be restored after the initial suspension period. It is recommended that users complete the registration as soon as possible to avoid disruptions in their mobile services. The CRT continues to monitor compliance and will take necessary actions against providers that fail to enforce the registration requirements.
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