Overview
- The national registration window runs from January 9 to June 29, 2026, with unregistered lines suspended starting June 30.
- The requirement covers prepaid and postpaid accounts, physical SIMs and eSIMs, including lines bought abroad that operate in Mexico.
- Users must provide a CURP and a valid official ID, with a cap of up to 10 lines per person to curb bulk misuse.
- Suspended numbers will be limited to emergency calls such as 911 until the user completes registration.
- Carriers including Telcel, AT&T and Movistar will run the process—some offering online options—and must safeguard data under Mexico’s privacy rules.