Overview
- Registration begins in early January with operator-specific start dates—AT&T on January 7 and Telcel and Movistar on January 9—followed by a 120‑day enrollment window, while new numbers must be linked immediately to activate service.
- The mandate covers prepaid and postpaid accounts, physical SIMs and eSIMs, including lines acquired abroad that operate in Mexico, and it limits individuals to a maximum of 10 lines.
- Lines not properly linked by providers’ late‑June deadlines will be suspended for regular service and restricted to emergency and citizen‑attention calls, and suspension does not cancel contractual payment obligations.
- Carriers must deploy two systems: a management platform to link or unlink lines (with in‑person or remote identity checks and a remote selfie ‘liveness’ test) and a consultation platform that shows only the last four digits of each associated number and the carrier name.
- Data will be stored by operators rather than a single government registry, rollout requires significant investment estimated at about 4.05 billion pesos, and companies that fail to comply face fines of 0.01% to 0.75% of revenue.