Mexico is requiring all mobile phone users to register their lines with official identification before a deadline at the end of June [2].

The mandate aims to curb widespread telephone fraud and extortion by eliminating anonymous SIM cards and linking every active line to a verified identity.

According to the Comisión Reguladora de Telecomunicaciones, known as the CRT or CTR [1, 2], approximately 51.5 million lines have already been linked to a user's name and Unique Population Registry Code (CURP) [1]. This registration process officially entered into effect on Jan. 9, 2026 [3].

With only 35 days remaining before the window closes [1], the government said users should complete the process. Failure to register will result in the blocking of the mobile line [2].

Reports vary slightly on the exact cutoff date. Some sources said the deadline is the end of June [2], while others said the cutoff is July 1 [3].

The initiative targets the anonymity that allows criminals to operate extortion rings. By requiring the CURP, a unique identity number for all residents and citizens, the regulator intends to create a digital trail for fraudulent activity [1, 2].

Users can complete the registration through their respective service providers. The move represents a significant shift in telecommunications oversight within the country, moving toward a fully identified user base to support national security efforts [2].

Approximately 51.5 million lines have already been linked to a user's name and CURP.

This policy marks a transition from the era of prepaid anonymity in Mexico to a state-monitored telecommunications environment. By linking every mobile device to a CURP, the government increases its surveillance capabilities and the ability of law enforcement to track suspects, though it may also raise concerns regarding digital privacy for the general population.