AT&T INC.

"Audited: no material customer concentration of risk is supported by the filing source."

"The Latin America segment accounted for approximately 3% of our 2025 and 2024 total segment operating revenues and less than 1% of segment operating income in 2025 and 2024."

"While software-based functionality can be changed much more quickly than, for example, physical switches, the rapid pace of development means that we may increasingly need to rely on single-source and software solutions that have not previously been deployed in production environments."

"No product concentration disclosure was detected in the most recent filing parsed."

"No credit concentration disclosure was detected in the most recent filing parsed."