Overview
- The CRT has yet to publish final guidelines, but reporting indicates the rules will be issued in December and the registry would take effect in January 2026.
- Once in force, operators would have 30 days to deploy identity-linking platforms, followed by a 120‑day window to associate each line with a CURP or a passport for foreign users.
- Unregistered numbers would face service restrictions limited to emergency calls, customer service and the operator portal, with cancellation reported for continued noncompliance.
- The registry covers physical SIMs and eSIMs used in Mexico and is projected to encompass roughly 158 million mobile lines under carrier-run databases.
- Authorities frame the measure as a response to phone extortion and fraud, with a September–October pilot conducted by ATDT and major carriers and the government stating it will not access the database.