AT&T: 3 Key Takeaways for Long-Term Investors

AT&T reported a significant milestone in its third quarter 2026 earnings call, adding over 1 million subscribers to both its high-speed fiber internet and mobile phone services. CEO John Stankey emphasized that combining these services results in reduced churn, or the rate at which subscribers cancel their plans.

A crucial factor behind this growth is the increasing affordability of building out fiber optic internet infrastructure, which transmits data at high speeds using glass strands. By scaling up construction, AT&T has been able to lower capital expenditures, allowing the company to maintain strong cash flow while expanding coverage.

CFO Pascal Desroches stated that this positions the company to reach 60 million or more locations with fiber by the end of the decade, with an annual capital investment roughly $1 billion lower than previously anticipated.

Another advantage for AT&T lies in its dense metro fiber networks and 5G wireless holdings, which create a formidable operational barrier for competitors. Stankey explained that in areas where both fiber and 5G infrastructure are deployed at scale, rivals struggle to match AT&T's network performance and value proposition. The company is also phasing out legacy copper wiring, reducing upkeep costs and streamlining operations.

As subscriber growth continues in wireless and high-speed internet networks, operating leverage becomes increasingly important. Management is focused on maintaining pricing discipline, reducing debt, and controlling customer acquisition costs, all while leveraging AT&T's structural advantages in fiber footprint and spectrum holdings.

CFO Desroches revealed that the company exited the third quarter with strong operating momentum, expecting full-year Advanced Connectivity service revenue growth of 5%+ and EBITDA growth of 6%.

AT&T sees long-term success in converting early fiber installations into lasting, multiproduct relationships. With the increasing demand for AI applications, the company aims to capitalize on its high-capacity infrastructure to serve both consumer and business customers. As AI becomes a key driver of connectivity needs, AT&T's high-performance networking is poised to meet these evolving demands.