AT&T Business Internet (ATTBI) is a provider of Internet access and services. It is a service of AT&T, a global Fortune 500 company with $181 billion in revenues in 2020. ATTBI provides local access. It is available in 59 countries. Extended access features allow users to reach 147 additional countries. ATTBI provides DSL services with speeds ranging from 25 to 500 Mbps, and fiber-optic services at up to 1 Gbps. References External links AT&T Business Home Page Information technology companies of the United States Companies based in Texas Internet service providers AT&T subsidiaries