AT&T Inc. is a premier communications holding company. Its subsidiaries and affiliates, AT&T operating companies, are the providers of AT&T services in the United States and around the world. Among their offerings are the world's most advanced IP-based business communications services, the nation’s fastest 3G network and the best wireless coverage worldwide, and the nation's leading high speed Internet access and voice services. AT&T is also committed to corporate sustainability as a way of doing business that benefits the company and our society. This includes more than $865 million in multiyear investments to important environmental, volunteerism and education programs that prepare our future workforce, strengthen our communities and ensure America’s global competitiveness.