The Telecommunications Regulatory Commission (CRT) extended the deadline to register telephone lines until December 2026. So far, only 63 million users (39.1% of the total) have completed the process. Of them, 40.2 million are prepaid and 22.8 million are postpaid.
Calendar by last digit
Registration will be done in stages according to the last digit of the telephone number:
- 0: August 15
- 1: August 31
- 2: September 15
- 3: September 30
- 4: October 15
- 5: October 31
- 6: November 15
- 7: November 30
- 8: December 15
- 9: December 31
Consequences of not registering
If you do not register before the deadline, your operator will suspend the line within 72 hours. You will only be able to make emergency calls, to citizen services and receive seismic alerts. You will lose access to mobile data, although you will be able to use Wi-Fi networks.
After expiration, you can register your line and service will be fully restored. The procedure is carried out with your operator and requires the CURP. Check your company’s official site for more details.




