Mexican mobile users with phone numbers ending in 0 must link their lines by Aug. 15 to avoid losing service [1].

This mandate is part of a broader effort by the Comisión Reguladora de Telecomunicaciones (IFT) to enforce mandatory registration for all mobile lines. Failure to comply with the deadline will result in the mass deactivation of unlinked accounts [3].

The registration process aims to ensure that every active line is tied to a verified user. This regulatory push follows a period of significant turnover in the mobile market. Between December 2024 and June 2025, nearly five million mobile lines were deactivated [4].

The scale of the registration effort is vast. Reports indicate there are 63 million active mobile lines in Mexico [5]. However, data regarding the total number of linked lines remains inconsistent, with some reports citing 70 million linked lines [6], a figure that exceeds the reported number of active lines.

Users are encouraged to contact their service providers to complete the vinculation process. The IFT said it implemented this staggered deadline system to manage the volume of registrations and prevent network congestion during the verification process [3].

This current deadline specifically targets numbers ending in 0, following previous windows for other digits. The government said that once the Aug. 15 date passes, the suspension of non-compliant lines will be automatic [1].

Users with phone numbers ending in 0 must link their lines by Aug. 15 to avoid losing service.

The Mexican government is tightening oversight of telecommunications to reduce anonymous mobile usage. By forcing the linkage of lines to verified identities, the IFT is likely attempting to curb fraud and improve security, though the contradictory data on active versus linked lines suggests significant challenges in tracking the country's total mobile footprint.