American Tower Facing Legal Dispute with Major Customer AT&T Mexico

Summary

On September 3, 2025, American Tower Corporation's CEO, Steven O. Vondran, disclosed at the Citi 2025 Global TMT Conference that the company is engaged in a legal dispute with its major customer, AT&T Mexico, which has been withholding tower rents since the start of 2025. This has led to $10 million of reserves being incurred in Q2 2025, with potential for additional reserves if the withholding continues. American Tower maintains that it has valid defenses and is confident in the enforceability of its Master Lease Agreement. The arbitration is scheduled for August 2026. Additionally, the CEO discussed the company's ongoing relationship with DISH Network Corporation, a smaller tenant.