Mandatory registration of mobile lines hits AT&T Mexico
The mandatory cell line registration process had a strong impact on AT&T Mexico’s prepaid customer base. During the second quarter of 2026, the company lost one million users in that segment. At the end of June, it had 15 million 829 thousand prepaid customers, according to its financial results.
In contrast, the postpaid service reported significant growth. The company added 369 thousand new clients, an increase of 20.7% compared to the same period of the previous year. Thus, it reached a total of 7 million 457 thousand users at the end of the semester.
Since January, telecommunications companies began registering mobile lines in the national registry. However, only 43% of the lines had been registered to date. Given this, the federal government extended the deadline to complete the process. The suspension of service for those who do not comply will begin in stages between August 15 and December 31.
The general director of AT&T Mexico, Mónica Aspe, indicated that the company will concentrate its efforts on successfully concluding the linkage process during the second half of the year. For its part, the consulting firm The Competitive Intelligence Unit (CIU) attributed the reduction in prepaid lines to the mandatory registration.
Despite the decrease in prepaid users, AT&T reported total revenue of $1,224 million in the second quarter. This represented annual growth of 16.1%, driven primarily by a favorable exchange rate. In addition, the company highlighted the strengthening of its network and the deployment of 5G infrastructure in stadiums and Fan Fest areas during the World Cup tournament, as part of its growth strategy.




