New administrative guidelines have outlined the operational framework for linking Mexico’s biometric national ID, the CURP Biométrica, to mandatory mobile phone registration, a policy that will effectively require biometric identity validation as a prerequisite for maintaining an active cell phone number in the country by July 2026.
Mexico enacted its mandatory mobile registration law on January 9, 2026, requiring all cell phone numbers, including prepaid and postpaid lines as well as physical SIM and eSIM, to be verifiably linked to an individual with a government-issued credential. An estimated 127 million active cell phone lines in the country are subject to the requirement. Existing line holders have until June 30, 2026, to register, with unregistered numbers set to be suspended beginning July 1. New lines activated after January 9 must be registered within 30 days of activation.
The CURP Biométrica adds a digital layer to Mexico’s existing Clave Única de Registro de Población system. A QR code, photograph, and electronic signature are embedded in the document, linking to biometrically verified data held in the national population registry. Mexican residents registering mobile lines are required to cite their CURP number alongside valid passport or identification documentation, making the biometric credential a functional prerequisite for line registration.
The combined effect is a policy under which anonymous prepaid SIM cards, long used for privacy protection and by transient populations including undocumented migrants and activists, will cease to function for any holder who does not complete biometric-linked registration before the June 30 deadline. The policy mirrors similar mandates implemented in India, Nigeria, and other markets that have tied SIM registration to national biometric ID systems.
Privacy advocates across Latin America have raised concerns about the policy’s surveillance implications, particularly the concentration of biometric identity data in government-managed systems linked to telecommunications infrastructure. The CURP Biométrica rollout itself has not been without controversy. A court in Yucatán suspended the program in September 2025 over privacy concerns before the federal government proceeded with implementation.
The CURP Biométrica has progressed from initial legislative approval in July 2025 through the national tender for the cloud platform and the court suspension in Yucatán.
Sources: MexPerience, Gringo Gazette
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By the ID Tech Editorial Team
