AT&T is the largest communications holding company in the world by revenue. Operating globally under the AT&T brand, we are:

Proud to offer one of the world’s most advanced and powerful global backbone networks, carrying 16.0 petabytes of data traffic on an average business day to nearly every continent and country, with up to 99.999 percent reliability.

The nation’s premier wireless carrier based on subscribers, serving 71.4 million customers and enabling them to travel and communicate seamlessly in more than 200 countries worldwide.

The nation’s largest Wi-Fi provider, now offering customers access at more than 71,000 hot spots spanning countries around the world (including company-owned and third-party roaming locations) — with the addition of approximately 7,000 Starbucks locations.

One of the world’s largest providers of IP-based communications services for businesses, with an extensive portfolio of Virtual Private Network (VPN), Voice over IP (VoIP) and other offerings — all backed by innovative security and customer support capabilities.