Understanding the CURP Linking Requirement for Mobile Lines
Starting in 2026, you must link your mobile phone number to your Clave Única de Registro de Población (CURP) to avoid being cut off. Here’s what you need to know about the deadlines set by Telcel and AT&T.
The Mexican telecommunications regulator, the Comisión Reguladora de Telecomunicaciones (CRT), has issued guidelines for associating mobile phone lines with a physical or legal person. This move aims to identify the individual behind each number and combat unlawful use of mobile services.
Key Dates for Telcel and AT&T
As of the third quarter of the year, Mexico has 158 million active mobile lines, with 16.7% being postpaid and the rest prepaid, according to The Competitive Intelligence Unit (The CIU).
Telcel, the largest mobile operator in Mexico owned by Carlos Slim, will begin its registration process on January 7th. Users have until June 29th to complete the linking process. After June 30th, any unlinked lines will be suspended until the user’s information is updated.
AT&T announced that starting January 7th, 2026, all new lines must be linked for service. If you don’t complete the linking process by June 26th, 2026, your line will remain without service until you finish linking. Lines activated before January 7th, 2026, also have a June 26th deadline for linking.
How to Link Your Mobile Line
You can link your mobile line either in-person at the service provider’s customer service centers or remotely through the platform each company will offer to its customers.
If you purchase a new cell phone after January 7th, you must link it to the carrier before using it.
Key Questions and Answers
- What is the purpose of linking my mobile line to my CURP? The Mexican government aims to identify the individual behind each mobile number, helping combat unlawful use of mobile services.
- What are the deadlines set by Telcel and AT&T?
- Telcel: Link your line by June 29, 2026, or it will be suspended.
- AT&T: Link your line by June 26, 2026, or it will remain without service until you complete the linking process.
- What happens if I don’t link my line by the deadline? Your mobile line will be suspended until you complete the linking process.
- How can I link my mobile line? You can link your line in-person at customer service centers or remotely through the provider’s platform.
